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Fluid Machine patents



      

This page is updated frequently with new Fluid Machine-related patent applications.




Date/App# patent app List of recent Fluid Machine-related patents
07/14/16
20160201668 
 A concentric rotary fluid machine patent thumbnailA concentric rotary fluid machine
A concentric rotary fluid machine includes a first body and a second body that are rotatable relative to each other and coaxially arranged one inside the other. A plurality of gates are supported by the second body in gate pockets.
Greystone Technologies Pty Ltd


06/30/16
20160186768 
 Diffuser of rotating fluid machines patent thumbnailDiffuser of rotating fluid machines
A diffuser of a rotating fluid machine that processes a gas with high level of contaminants is provided, the diffuser having an annular surface portion facing rotating vanes of a rotor of the rotating fluid machine, the annular surface portion being at least partially covered with an abradable and anti-encrustation coating including (a) a first lower metal-based coating layer applied on the annular surface portion of the diffuser, and (b) a second upper polymer-based coating layer applied on the first lower metal-based coating layer, wherein the first lower metal-based coating layer comprises 99% by weight of aluminum powder based on the total weight of the first lower-based coating layer and is anchored to the annular surface with a nickel and aluminum (nial) binder.. .

06/30/16
20160186767 
 Method for producing member for fluid machines, and member for fluid machines patent thumbnailMethod for producing member for fluid machines, and member for fluid machines
A method for producing a member for fluid machines, which includes: a coating step of applying a glass-based material to the surface of a base; a smoothing step of removing some of the glass-based material while heating and melting the glass-based material after the coating step; and a solidification step of solidifying the heated and melted glass-based material after the smoothing step.. .

06/09/16
20160160646 
 Scroll type fluid machine patent thumbnailScroll type fluid machine
To provide a scroll type fluid machine including a rotation stopping mechanism that can reduce noise released to the outside of the scroll type fluid machine by damping vibration transmitted from a movable scroll to a casing. In a scroll type fluid machine (1) including a rotation stopping mechanism (36) for stopping rotation of a movable scroll without hindering revolving motion of the movable scroll (16) relative to a fixed scroll (14) fixed to a casing (4), the rotation stopping mechanism includes: a support hole (42) drilled in either one of a base plate (16a) of the movable scroll and a pedestal part (4a) of the casing; a rotation stopping pin (38) that is fitted into the support hole, and is protruded to the side of the other of the base plate and the pedestal part; a restriction hole (46) that is drilled in the other of the base plate and the pedestal part, and is loosely fitted with the rotation stopping pin; and a buffer member (44) interposed, at least in the support hole out of the support hole and the restriction hole, between the support hole and the rotation stopping pin..
Sanden Holdings Corporation


05/12/16
20160131133 
 Scroll fluid machine patent thumbnailScroll fluid machine
A scroll expander includes: a driving scroll body having a first axis line as a rotary shaft line; a driven scroll body having, as a rotary shaft, a second axis line shifted with respect to the first axis line; a bearing plate having the second axis line as a rotary shaft; a cylindrical driving pin attached to the driving scroll body; and a cylindrical guide ring attached to the bearing plate and having an inner diameter larger than an outer diameter of the driving pin. Four driving pins are disposed on the circumference of a circle around the first axis line at an equal interval.
Anest Iwata Corporation


04/21/16
20160108916 
 Rotor and rotary fluid machine patent thumbnailRotor and rotary fluid machine
First closing member and second closing member close opening portions at both ends of cylindrical member in an axial direction. Base is housed in a space formed by cylindrical member, first closing member, and second closing member, and rotates around an axis in the same direction as the axial direction of cylindrical member.

03/17/16
20160079829 
 Accelerated fluid machine patent thumbnailAccelerated fluid machine
The accelerated fluid machine is an apparatus capable of generating inexpensively renewable and clean mechanical and/or electrical energy for powering partly or totally a vehicle, or a location (home, building, factory, etc.). Therefore it is an economical and effective way to reduce nowadays global warming and high energy costs.

03/17/16
20160076551 
 Impeller and fluid machine patent thumbnailImpeller and fluid machine
Provided is an impeller and a fluid machine which have an annular hub (21) and a plurality of blades (22) radially arranged along an outer peripheral surface of the hub (21). On a pressure surface (p1) of the blade (22), there are provided a first pressure surface (31) extending from the hub (21) side at an angle of 90 degrees or less with respect to the forward direction of the rotation direction (a), and a second pressure surface (32) extending from the first pressure surface (31) at an angle of more than 90 degrees with respect to the forward direction of the rotation direction (a).
Mitsubishi Heavy Industries, Ltd.


01/21/16
20160017888 
 Centrifugal fluid machine patent thumbnailCentrifugal fluid machine
A centrifugal fluid machine includes a rotor, a low pressure compression unit provided on one side in the axial direction of the rotor, a high pressure compression unit provided on the other side in the axial direction of the rotor, a partition wall 13 that separates the low and high pressure compression units, and a high pressure-side discharge passage 54 formed on the side of the high pressure compression unit of the partition wall 13, extending in the radial direction of the rotor, and provided along the partition wall 13, wherein the partition wall 13 has a wall body 71, a passage deformation suppression member 72 that is provided between the wall body 71 and the high pressure-side discharge passage 54 and can deform the high pressure-side discharge passage 54, and an biasing mechanism 73 that is provided between the wall body 71 and the passage deformation suppression member 72.. .
Mitsubishi Heavy Industries, Ltd.


01/14/16
20160010671 
 Method and devices for discharging contaminants out of a seal chamber patent thumbnailMethod and devices for discharging contaminants out of a seal chamber
A method and an ejection device are provided for discharging contaminants out of a seal chamber of a rotating-fluid machine driving a main flow of contaminated fluid. The ejection device incorporates an obstacle for arresting a portion of the flow in the seal chamber to stagnation pressure, whereby a zone of fluid at stagnation pressure is created.
Ettem Engineering S.a. Ltd.


12/24/15
20150369258 

Fluid device


A fluid device having a fluid machine and a rotary electric machine includes a fluid machine and a rotary electric machine connected to a rotating shaft of the fluid machine. A cooler is arranged for carrying out liquid-cooling using a fluid of a cooling pipe connecting an upstream portion and a downstream portion of the fluid machine to bypass the fluid machine.
Daikin Industries, Ltd.


12/24/15
20150369075 

Rotating fluid machine


Provided is a rotating fluid machine capable of holding down a decrease rate of a circumferential velocity of a leakage fluid in an interspatial flow passage and thereby controlling an unstable fluid force. A steam turbine includes: an interspatial flow passage 15 formed between an outer circumferential surface of a rotor blade cover 6 and an inner circumferential surface of a grooved section 14 in a casing 1; annular sealing fins 17a to 17d spatially arranged in a direction of a rotor axis, at a side of the rotor blade cover 6 in the interspatial flow passage 15; and a friction enhancement portion (more specifically, rough surfaces 19a to 19e) disposed over the whole circumference on the side of the rotor blade cover 6 in the interspatial flow passage 15..
Mitsubishi Hitachi Power Systems, Ltd.


12/10/15
20150354551 

Fluid machine


An object of the invention is to provide a fluid machine capable of reducing vibration of a discharge valve while reducing a delay of closing of the discharge valve. The invention provides “a fluid machine, including: a piston reciprocating in a cylinder; a valve seat plate provided in the cylinder; a valve provided to a port portion of the valve seat plate and opening and closing in accordance with reciprocation of the piston; and a valve retainer for regulating an opening amount of the valve, wherein a surface of the valve retainer, the surface facing the valve seat plate, is inclined above the port portion so that an open end side is closer to the port portion and has a part farthest from the valve seat plate between the port portion and the fixed end”..
Hitachi Industrial Equipment Systems Co., Ltd.


11/26/15
20150337849 

Method and system for fluid flow control in a fluid network system


It is presented a method of controlling fluid flow in a fluid network system by means of a plurality of fluid machines. The method comprises the steps of a) obtaining a respective current fluid flow rate associated with each fluid machine, b) obtaining a current fluid machine speed of each fluid machine, c) obtaining desired fluid flow rates in the fluid network system, d) determining a new fluid machine speed for each fluid machine based on the current fluid machine speeds and a change in the fluid machine speed required to obtain the desired fluid flow rates, wherein the change in the fluid machine speed is determined by minimizing a total fluid machine power which is a function dependent of the change in the fluid machine speed, the minimization being performed with constraints for fluid flow rate, fluid machine pressure and fluid machine speed, and e) controlling the speed of the plurality of fluid machines according to the new fluid machine speeds such that the minimum total fluid machine power in the fluid network system is attained.
Abb Research Ltd


11/26/15
20150337834 

Scroll-type fluid machine


The objective of the present invention is to provide a scroll-type fluid machine for which the service life can be improved by reducing the load applied to a rotation prevention mechanism. To solve this problem, this scroll-type fluid machine is characterized by being equipped with a stationary scroll, an orbiting scroll that is provided opposing the stationary scroll and undergoes turning movement, a casing provided on the outside of the orbiting scroll, a drive shaft that drives and turns the orbiting scroll, a boss plate part that is provided separated from the orbiting scroll and is connected to the drive shaft, and multiple rotation prevention mechanisms provided between the boss plate part and the casing, and is characterized in that the boss plate part has multiple rotation-prevention-mechanism-side boss plate parts connected to the rotation prevention mechanisms, and a drive-shaft-side boss plate part connected to the drive shaft, and spaces are provided between the rotation-prevention-mechanism-side boss plate parts and the drive-shaft-side boss plate part..
Hitachi Industrial Equipment Systems Co., Ltd.


11/26/15
20150337780 

Fluid machine and fluid machine system equipped with the same


An object is to provide a fluid machine whereby it is possible to improve performance, for example, expand a flow-rate operation rage with a simplified shape of an intake pipe. A fluid machine includes an impeller mounted to a rotation shaft, a housing which houses the impeller rotatably, and an intake pipe for supplying a fluid to the housing.
Mitsubishi Heavy Industries, Ltd.


11/19/15
20150328713 

Stainless steel, fluid machine, and producing stainless steel


A stainless steel comprises a base metal and a coating material formed on the surface of the base metal, wherein the coating material has a surface on which crystal planes with a maximum atom density orient.. .
Hitachi, Ltd.


11/12/15
20150322947 

Scroll-type fluid machine


To provide a scroll-type fluid machine in which the influence on power recovery efficiency of a clearance in an expansion section is reduced. A scroll-type fluid machine (100) includes: a scroll unit (20) in which a fixed scroll (3) and an orbiting scroll (4) are disposed and an expansion section (1) and a compression section (2) are formed; and a support part (30) that supports the orbiting scroll (3) so as to be able to perform revolving motion, the compression section (2) being driven by power recovered in the expansion section (1).
Sanden Holdings Corporation


11/12/15
20150322945 

Rotary fluid machine


A rotary fluid machine that reduces fluid leakage from a gear pump or gear motor and achieves improvement in responsiveness is provided. The present invention is configured such that force of pressing a side plate toward gears by a seal member provided between the side plate and a case and performing pressure compartment is partly strong, not uniform along the entire length of the seal member.
Hitachi,ltd


11/05/15
20150315913 

Rotary machine


A rotary fluid machine has an inner rotor and an outer shell held by a stationary support structure, arranged so that sealing points on the inside of the shell interact in a sealing arrangement with the outer surface of the rotor to define working chambers, such that in use the relative motion of the rotor to the shell causes fluid to be moved through ducts in the rotor and rotor shaft, between the working chambers and a point where the rotor shaft interacts with the support structure.. .

09/24/15
20150267717 

Turbo type fluid machine


A turbo type compressor of the present invention comprises a housing, a rotating shaft, and first and second impellers. The rotating shaft is supported by the housing to be rotatable around a rotational axis.
Kabushiki Kaisha Toyota Jidoshokki


08/27/15
20150240828 

Bi-directional hydrostatic thrust bearing for a rotating machine


A fluid machine in communication with a thrust bearing fluid source includes a housing having a bearing portion receiving fluid from the fluid source. A bearing chamber is formed in the bearing portion.
Fluid Equipment Development Company


08/13/15
20150226217 

Electric machine - fluid machine stanchev aggregation set


Electrical machine-fluid machine stanchev aggregation set comprising stator/body unit, rotor/piston units, power supply and control module. The stator/body unit (1) shapes volume of rotation in which there are two segment-type rotor/piston units (11).

07/30/15
20150211517 

Screw-type fluid machine


The objective of the present invention is to reduce a meshing seal line length and further reduce a blowhole area. A compression side blowhole b2 is generated in a region surrounded by a male rotor side blowhole contour r1, a female rotor side blowhole contour r2, and a lower cusp line k2.
Mayekawa Mfg. Co., Ltd.


07/09/15
20150192122 

Rotary fluid machine and associated operation


A fluid rotary machine includes first and second bodies and that are rotatable relative to each other. The secondbody is inside the first body to define a working fluid space there between.
Marel A/s


06/04/15
20150152863 

Scroll type fluid machine


A scroll type fluid machine for improving compression efficiency while preventing contact between wrap sections of opposed scrolls, includes a first scroll member provided with a wrap section of a spiral shape on an end plate, a second scroll member disposed at a position opposed to the first scroll member and provided with a wrap section of a spiral shape on an end plate, cooling fins arranged on a back side surface of the end plate of at least one of the first scroll member and the second scroll member, and projected sections arranged on the wrap section of at least one of the first scroll member and the second scroll member, in which a difference of thicknesses in the radial direction of the wrap section at a distal end and a base end of the projected sections is changed depending on a position in a peripheral direction.. .
Hitachi Industrial Equipment Systems Co., Ltd.


05/28/15
20150147215 

Scroll-type fluid machine with grease-lubricated orbiting bearing


A scroll-type fluid machine reduces intrusion of abrasion powders, generated by sliding of a conductor causing an orbiting scroll side and a fixed scroll side to be conducted, into a compression chamber, and improves reliability of a compressor. The scroll-type machine includes a casing, a fixed scroll having a flange surface attached to the casing, and a wrap portion provided at an end plate, an orbiting scroll having a wrap portion provided at the end plate, and provided in an opposed relationship with the fixed scroll, a drive shaft connected through a crank portion to the orbiting scroll, an orbiting bearing, a face seal portion arranged between the orbiting scroll and the fixed scroll, a cooling fan, and an orbiting scroll side conductive brush..
Hitachi Industrial Equipment Systems Co., Ltd.


05/21/15
20150139583 

Bearing unit for fluid machinery application


A bearing unit for a fluid machinery application having a double-row bearing, the double-row bearing comprising: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing for locating and rotatably support a shaft; each angular self-aligning contact bearing having a respective set of rolling elements formed of rollers arranged in a row and interposed between an associated curved inner raceway and a curved outer raceway. Each roller is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface engaging with the curved inner and outer raceways.
Aktiebolaget Skf


05/21/15
20150135809 

Erosion prediction method, erosion prediction system, erosion characteristics database used in this prediction, and method constructing the same


A method for predicting erosion of a fluid machine surface due to cavitation, the method including: calculating erosion intensity distribution in each area of the fluid machine surface from cavitation flow field characteristics obtained using cavitation cfd in a flow path formed by the fluid machine; determining radius distribution and center position distribution of a representative sphere and the number of shape deformations by the representative sphere for assuming an erosion surface having a porous surface property based on the erosion intensity distribution; determining a fluid machine surface to be predicted as an approximate erosion surface; and calculating a shape after deformation of the approximate erosion surface based on the radius distribution and the center position of the representative sphere and the number of shape deformations by the representative sphere.. .

05/07/15
20150125104 

Bearing arrangement for fluid machinery application


A bearing arrangement for a fluid machinery application employing an axially locating bearing. The axially locating bearing includes: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing.
Aktiebolaget Skf


05/07/15
20150121695 

Method and device for assembling swash plate-type fluid machine


A method of assembling a swash plate-type fluid machine, comprising: bringing, with each of a plurality of pistons suspended by a swash plate, a shaft assembly in a vertical axis posture and a cylinder block close to each other to insert each of the pistons into a corresponding one of cylinder bores, in incorporating the shaft assembly, which has the plurality of pistons each installed on the swash plate via a pair of shoes matching with both end surfaces of the swash plate, respectively, into the cylinder block.. .
Sanyo Machine Works, Ltd.


04/09/15
20150098845 

Fluid machinery


A fluid machinery including: an expander that generates power by expansion of refrigerant; and a piston pump that pumps the refrigerant, and capable of reducing a decrease in lubrication performance of a mechanical sliding section in a crank chamber of the piston pump. A fluid machinery 29a includes an expander unit (scroll expander) 60a that generates power by expansion of refrigerant, and a pump unit (piston pump) 50a that pumps the refrigerant.
Sanden Corporation


04/02/15
20150093276 

Scroll type fluid machine


A scroll type fluid machine, for improving a dimensional accuracy with easy working, includes a fixed scroll, an orbiting scroll arranged so as to oppose to the fixed scroll and executing an orbiting motion, a driving shaft driving the orbiting scroll, an eccentric shaft decentered from the driving shaft and connected to the orbiting scroll, and an eccentric bush connecting the driving shaft and the eccentric shaft to each other, in which the eccentric bush includes a main hole into which the driving shaft is fitted and an eccentric hole into which the eccentric shaft is fitted, and the eccentric hole is decentered with respect to the main hole.. .
Hitachi Industrial Equipment Systems Co., Ltd.


04/02/15
20150093275 

Scroll type fluid machine


A plurality of notches or holes is formed on a motor housing or the compressor casing. This permits assembling of the auxiliary crankshaft to the auxiliary crank bearing even after the motor housing and the compressor casing are fastened together.

04/02/15
20150093269 

Scroll type fluid machine


Inside the motor casing, fastening seats to fasten a motor stator by use of fastening members and ribs to reinforce the fastening seats are provided. As a result, the rigidity of the motor casing is increased, and the deformation of the positional dimensions of the positional pin holes can be inhibited..

03/05/15
20150064039 

Fluid machine and rankine cycle


A fluid machine includes: a first shaft; a compressor/expander fluid machine; a planetary gear mechanism having a sun gear connected to a second shaft rotating in synchronization with the compressor/expander fluid machine, a ring gear connected to the first shaft, a planetary gear, and a planetary carrier; a first clutch that locks/releases the planetary carrier and one of the ring gear and the sun gear; a second clutch that locks/releases the planetary carrier and the housing; a clutch control unit that controls locking/releasing of the first and second clutches depending on whether the compressor/expander fluid machine operates as an expander or a compressor.. .
Sanden Corporation


02/19/15
20150050136 

Air intake duct structure for centrifugal fluid machine


An object is to provide an air intake duct structure for a centrifugal fluid machine, capable of swirling the fluid introduced into the impeller in the reverse direction to increase the pressure ratio when the flow rate is high and swirling the fluid in the forward direction to avoid a surging when the flow rate is low, as well as securing a wide operating range, without using mechanical means. The centrifugal fluid machine 1 includes an impeller 12 mounted to a rotation shaft and a housing 4 for housing the impeller 12.
Mitsubishi Heavy Industries, Ltd.


02/05/15
20150033744 

Fluid machine


A fluid machine (29a) including: a casing section (56) including a suction port (55); a housing section (54) including a discharge port (53); and scrolls (51, 52) driven by a working fluid suctioned from the suction port (55). In the fluid machine (29a), a bypass section (80), which includes a bypass passage (81) guiding the working fluid to the discharge port (53) while allowing the working fluid to bypass the scrolls (51, 52) and a valve mechanism (83) opening and closing the bypass passage (81), is supported between the casing section (56) and the housing section (54).
Sanden Corporation


02/05/15
20150033743 

Fluid machine


A fluid machine (29a) including: a casing section (56) having a suction port (55) into which a working fluid that becomes a high pressure heated vapor flows; a housing section (54) having a discharge port (53); and a scroll section (51, 52) driven by the working fluid suctioned from the suction port (55). A bypass section (80) including: a bypass passage (81) allowing the suction port (55) to communicate with the discharge port (53); and a valve mechanism (83) opening and closing the bypass passage (81), is supported between the sections (56, 54).
Sanden Corporation


01/22/15
20150023824 

Scroll-type expander and fluid machine provided with same


To provide a scroll-type expander having a relatively simple structure, small energy loss, and high durability and reliability. A pump-integrated expander 27 includes an expansion unit 50 configured as a scroll-type expander.
Sanden Corporation


01/15/15
20150016981 

Centrifugal fluid machine


A centrifugal fluid machine includes an impeller (4) that has a front shroud (41) arranged on one side in an axial direction, a rear shroud (42) arranged on the other side in the axial direction, and a plurality of blades (43) provided side by side in a circumferential direction between the front shroud and the rear shroud and is rotatably supported within a casing (2); a suction passage (2a) that allows a fluid to be sucked therethrough in the axial direction toward the impeller with the rotation of the impeller; a discharge passage (2b) that allows a fluid delivered under pressure by the impeller with the rotation of the impeller to be discharged in a direction intersecting the axial direction of the impeller; and a first flow path (5a) that communicates with the discharge passage, leads to the suction passage through a gap between the casing and the rear shroud, and an opening (5aa) that opens toward the downstream side of the suction passage in a suction direction of a fluid. The opening area of the opening is set so that the ejection speed (vs) of a fluid ejected from the opening to the suction passage is matched with the suction speed (v) of a fluid sucked into the suction passage..
Mitsubishi Heavy Industries, Ltd.


12/11/14
20140360594 

Medical fluid machine with supply autoconnection


A system for automatically connecting tubing to a medical fluid machine includes at least one fluid container including a tube having a cap on an end of the tube, a shuttle configured to receive the tube, a driving mechanism configured to translate the shuttle, a cap removal device configured to remove the cap from the end of the tube, and a control unit programmed to cause (i) the driving mechanism to translate the shuttle holding the tube in a first direction towards the cap removal device so that the cap removal device can engage the tube cap, (ii) the driving mechanism to translate in a second direction away from the cap removal device so that the cap removal device removes the cap from the end of the tube, and (iii) the driving mechanism to translate the shuttle in the first direction with the cap removed from the tube so that the tube can be mated with the medical fluid machine.. .

12/04/14
20140356207 

An oil-free scroll fluid machine


An oil-free scroll fluid machine includes an inner casing used as or not as a fixed scroll, and an outer casing used as a fixed scroll. The inner casing is butted with the outer casing to form a seal chamber.

10/30/14
20140322059 

Fluid machine


The present disclosure relates to fluid machines, especially compressors, more especially screw compressors. More particularly the present disclosure describes a fluid machine comprising at least one rotor (64), the rotor including a rotor drive shaft (68) extending from the rotor, a housing in which is mounted the rotor, and at least one bearing insert (74) which mounts around the rotor drive shaft at a first end of the rotor and which includes at least one bearing (114) within it and attaches to the housing.

10/23/14
20140314586 

Package type fluid machine


A package type fluid machine having a plurality of fluid machine units each of which includes a fluid machine, a motor that drives the fluid machine, and a belt that connects the fluid machine and the motor. The plurality of fluid machine units are arranged in a cabinet, wherein the plurality of fluid machine units has a pair of the fluid machine units, arranged opposed to each other, with the belts of the fluid machine units facing inward..

10/23/14
20140314557 

Centrifugal fluid machine


In a centrifugal fluid machine, the secondary flow loss inside an impeller is reduced and the occurrence, when the flow rate decreases, of a flow separation/stall on the shroud-side suction surface near the leading edge of each impeller blade is suppressed, thereby making it possible to maintain the operating range of the impeller. For this, at the trailing edge of each impeller blade, the trailing edge of each impeller blade is inclined so that the shroud side of the impeller blade is positioned more backward in the rotation direction than the hub side thereof as the impeller is seen from the suction direction upstream of the rotary shaft of the impeller.

10/02/14
20140294641 

Scroll fluid machine


In a scroll air compressor as a scroll fluid machine capable of being downsized with an increased cooling effect, cooling air entering through a fixed inlet of a fixed cooling passage provided at the rear of a fixed scroll, and an orbiting inlet of an orbiting cooling passage provided at the rear of an orbiting scroll, is allowed to flow out of an fixed outlet and an orbiting outlet, respectively. Thereafter, the cooling air is guided to an outer periphery of the other end of the casing through a side duct and a guide duct, and then sucked into an inner peripheral side of a centrifugal fan to be discharged outwardly from an exhaust port provided in a fan cover..

08/14/14
20140227086 

Method and sealing a rotating machine using floating seals


A fluid machine has a housing and a rotating portion that rotates relative to and is at least partially disposed within the housing. The housing is coupled to a seal assembly comprising a plurality of seal channels having a plurality of seal rings.

07/24/14
20140201943 

Vacuum motor scroll assembly and vacuums including such an assembly


A scroll assembly for use with a fluid machine, such as a wet/dry vacuum appliance, is described. Such scroll assembly may include a base portion, a cover portion configured to couple to the base portion, and a cavity between the base portion and the cover portion, wherein the cover portion and the base portion collectively form a labyrinth seal when coupled together, and wherein the labyrinth seal at least partially circumscribes the cavity.

06/26/14
20140178234 

Internal rotor-type fluid machine


An internal rotor-type fluid machine includes a rotary shaft, a rotor which rotates together with the rotary shaft, a support portion which is provided on the rotary shaft or the rotor, and which supports the rotary shaft to be tiltable with respect to the rotor, and a pressure chamber inner wall surface which configures a pressure chamber by contacting an end surface of the rotor in an axial direction. The rotor is pressed toward the rotary shaft by a high fluid pressure, based on a pressure difference in the pressure chamber between a high pressure side and a low pressure side having a lower pressure than the high pressure side.

06/05/14
20140154122 

Scroll fluid machine


A scroll fluid machine having: a compressor body including a fixed scroll and an orbiting scroll opposed to the fixed scroll, the orbiting scroll orbiting; a drive shaft connected to the orbiting scroll; a cooling fan provided on another side of the drive shaft opposite to the orbiting scroll, the cooling fan generating a cooling wind; and a cooling wind passage surrounded by walls in all directions, the cooling wind passage sending the cooling wind of the cooling fan to the compressor body, when the cooling wind passage being disposed left and the drive shaft being disposed right when seen from a direction in which the drive shaft extends, a size of the cooling wind passage in the left and right directions being smaller in upstream than downstream of the cooling wind passage.. .

05/29/14
20140147319 

Frame for fluid machines


Herein described is a frame for a fluid machine of the reciprocating type. The frame bears one or more cylinders moving inside each of which, with a reciprocating movement, is a piston operated by a crankshaft.

05/22/14
20140140880 

Rotary fluid machine


A rotary fluid machine 10 has a rotor 12, a stator 14, and a plurality of gates. The rotor 12 and stator 14 are rotatable relative to each other and arranged one inside the other to define a working chamber 18 there between.

05/15/14
20140134034 

Fluid machine


The present invention relates to a fluid machine. A pump integrated expander (29a) includes a pump unit (60) and an expansion unit (50).

05/15/14
20140133667 

System and attenuating noise from a fluid machine or a turbulent noise source


A noise cancellation system for transporting a fluid (m) from an inlet in one space (rm1) to an outlet in another space (rm2). A noisy element (vf, ha), e.g.

05/01/14
20140119970 

Scroll fluid machine


A scroll fluid machine is provided that includes: a fixed scroll; an orbiting scroll opposed to the fixed scroll, the orbiting scroll orbiting with a plurality of compression chambers formed between the orbiting scroll and the fixed scroll; a drive shaft driving the orbiting scroll; and a backside plate provided between the drive shaft and the orbiting scroll, an alignment hole being provided in each of the orbiting scroll and the backside plate, and an alignment pin for alignment and a seal member for sealing the compression chambers being provided in the alignment holes.. .

04/03/14
20140094105 

Method and system for fluid flow control in a fluid network system


A method of controlling fluid flow in a fluid network system by means of a plurality of fluid machines. The disclosure provides a simple empirical method of identifying network characteristics of the fluid network system used for providing the required fluid flow rate in the fluid network system utilizing minimal fluid machine power.

03/20/14
20140079543 

Regenerative-type fluid machinery having a guide vane on a channel wall


Disclosed is a regenerative fluid machine having guide vanes on a flow channel wall. The regenerative fluid machine includes a circular plate-shaped impeller having a plurality of vanes radially formed on an outer circumference thereof at regular intervals, casings in which the impeller is housed, and flow channels, each of which has a suction hole and a discharge hole in opposite ends thereof, and which are circumferentially disposed within the casings so as to face the vanes.

11/28/13
20130315769 

Scroll fluid machine


A seal groove is cut in the distal end face of a wrap of a fixed scroll, with a tip seal being fitted in the seal groove. Swelling members are interposed between both side faces of the tip seal and corresponding opposite side faces of the wrap.

11/28/13
20130315707 

Stepped parting joint on a transmission housing of a fluid machine


A divisible housing of a fluid machine for a transmission to be received in the divisible housing is provided. The transmission provided for receiving in the divisible housing includes a large wheel and at least two pinion shafts which are in engagement with the large wheel.

11/14/13
20130302518 

Method and device for forming coating on scroll type fluid machine


An orbiting scroll is fixed on a rotating table and rotated about a spiral center. A spray nozzle is positioned in the spiral center or at an outside end of the orbiting scroll and caused to discharge a coating toward a side face of a wrap portion.

11/14/13
20130302200 

Scroll type fluid machine, for forming elastic coating thereon


A coating solution that contains 10 to 20% by weight of epoxy resin serving as a thermosetting resin, 20 to 30% by weight of mos2, and 5 to 10% by weight of graphite, with a remainder thereof constituted by an organic solvent, is sprayed onto a wrap portion side face of an orbiting scroll from a spray nozzle . While spraying the coating solution, the orbiting scroll is rotated on a rotating table and the spray nozzle is moved along a rectilinear movement path toward a radial direction outer side of the orbiting scroll while maintaining an attitude thereof from the start of the spraying process.

11/07/13
20130294956 

Scroll fluid machine


A scroll fluid machine includes a revolving scroll in which a revolving wrap stands upright on an end plate supported revolvably on a drive shaft, and a fixed scroll which is provided opposite the revolving scroll and in which a fixed wrap stands upright on an end plate. The revolving and fixed wraps overlap to form a compression chamber for compressing a fluid by causing the revolving scroll to revolve.

10/17/13
20130269186 

Method and device for assembling swash plate-type fluid machine


A method of assembling a shaft assembly having a plurality of pistons each installed on a swash plate via a pair of shoes matching with both end surfaces of the swash plate, respectively. The method includes: supporting a shaft having the swash plate in a vertical axis posture; incorporating the shoes between a first guide surface of a guide member and each of the pistons and between a second guide surface of the guide member and that piston, respectively; guiding the plurality of pistons to the swash plate in the vertical axis posture using the guide member; and matching the shoes with both the end surfaces of the swash plate respectively while disposing the pistons at circumferentially equidistant positions of the swash plate, respectively..

10/03/13
20130259673 

Vane segment and axial-flow fluid machine including the same


A vane segment according to the present invention includes: an outer connection member connecting a plurality of vanes; positioning jigs for positioning end vanes located at both ends, of the plurality of vanes; and radial restriction sections which restrict the outer connection member so as to be relatively immovable to an outer side in a radial direction of a vane ring, wherein: each of the plurality of vanes has a vane main body and an outer shroud; grooves are formed in the outer shrouds; openings into each of which the positioning jig is inserted are formed in portions of the outer connection member; holes into each of which the positioning jig inserted in the opening is inserted are formed in bottoms of the grooves of the two end vanes; and at least one of the positioning jigs is an eccentric positioning jig.. .

09/19/13
20130243635 

Scroll-type fluid machine


Provided is a scroll-type fluid machine which can reduce deformation of a rotary scroll caused when fixing a bearing into a boss part. A scroll compressor, in which a sealed chamber confining a fluid is formed by a fixed scroll and the rotary scroll meshed together, each of the scrolls having a spiral wall erected on one side face of an end plate, includes: a metallic boss part (15c) protruding from the other side face of the end plate of the rotary scroll; a metallic rotary bearing (12) inserted into the boss part (15c); a crankshaft rotating around an axis and including a bush part inserted in the rotary bearing (12) and rotatably supported by the rotary bearing (12); and an insert member (31) disposed between the boss part (15c) and the rotary bearing (12) and having a thermal expansion coefficient greater than those of the boss part (15c) and the rotary bearing (12)..

09/12/13
20130236344 

Scroll fluid machine


An orbiting scroll 1 having a warp and a pair of fixed scrolls 2, 3 having a wrap are combined; a hollow orbiting shaft 1d is provided at the center part of the orbiting scroll 1; a rotating shaft 6 passes through the hollow portion 1e of the orbiting shaft 1d; a pair of covers 7, 9 is provided on the outer surface side of the fixed scroll 2, 3; the rotating shaft 6 is rotatably supported by covers 7, 9; orbiting bearings 12, 14 are provided on both ends of the orbiting shaft 1d; the orbiting bearings 12, 14 fit eccentric portions 6a, 6b provided on the rotating shaft 6; and a self-rotation prevention mechanism for the orbiting scroll 1 is provided at one end of the orbiting shaft 1d.. .

08/22/13
20130216360 

Axial-flow fluid machine, and variable vane drive device thereof


In a variable vane drive device of an axial-flow fluid machine, a ring support unit supporting a movable ring includes: a first roller; a first support part supporting the first rollers so as to be relatively immovable with respect to a vane holding ring in a radial direction and in an axial direction; a second roller; a second support part supporting the second roller so as to be relatively movable with respect to the vane holding ring in the radial direction and pressing the second roller in the radial direction; a third roller allowing relative movement of the movable ring in the radial direction and restricting relative movement of the movable ring in the axial direction; and a third support part supporting the third roller so as to be relatively immovable with respect to the vane holding ring in the axial direction and in the radial direction.. .

08/08/13
20130202416 

Drive device


[solving means] a fluid machine (100) according to this embodiment has a structure in which a connecting rod as a movable member of a pump unit (20) is not connected to a circling shaft (13) of a motor unit (10) via a bearing but fixed to the circling shaft (13). In other words, the connection structure between the circling shaft (13) and the connecting rod is a structure using no bearings, and the integration, that is, the rigidity, of the circling shaft (13) and the connecting rod can be increased, which can increase the drive precision of the connecting rod.

08/08/13
20130202411 

Motor-driven compressor and hermetic sealing inspection the same


A motor-driven compressor includes a compression mechanism compressing and discharging fluid, an electric motor driving the compression mechanism, a drive circuit controlling the electric motor, a drive circuit chamber accommodating the drive circuit and a hermetic sealing inspection port that allows the drive circuit chamber to be in communication with the outside thereof. The hermetic sealing inspection port includes a valve opening and closing the hermetic sealing inspection port.

07/25/13
20130186828 

Method for powering portable dialysis machine


A method for operating a medical fluid machine, the method comprising: (i) if alternating current (“ac”) power is available, charging a battery, if needed, and powering the medical fluid machine with the ac power; and (ii) if ac power is not available (a) if fuel cell power is available, charging the battery, if needed, and powering the medical fluid machine with the fuel cell power; and (b) if fuel cell power is not available, powering the medical fluid machine using battery power until the ac power or fuel cell power is available.. .

07/18/13
20130183171 

Rotary cam ring fluid machine


A cam ring fluid machine, a rotary cam ring fluid machine has a casing, a flange in the casing, a stator in the casing, a rotor cam ring in the stator, a fixed axis in the rotor cam ring, and a vane in the vane groove of the fixed axis. A fluid chamber is formed with the inner circumferential surface of the rotor cam ring, the outer circumferential surface of the fixed axis, the vane, and the flange.

07/18/13
20130183169 

Propulsion and motion-transmission assembly, in particular for a rotary-wing aircraft


A propulsion and motion-transmission assembly (1), in particular for a rotary-wing aircraft, the assembly (1) comprising:—a first hydrostatic transmission (2) including a first fluid machine for converting mechanical energy into fluid energy (18) and a first fluid machine for converting fluid energy into mechanical energy (26);—a second hydrostatic transmission (8) including a second fluid machine for converting mechanical energy into fluid energy (62) and a second fluid machine for converting fluid energy into mechanical energy (70); and wherein each of said first and second hydrostatic transmissions (2, 8) comprises a high-pressure branch (24, 68) and a low-pressure branch (30, 74), which, in each of said first and second hydrostatic transmissions (2, 8), hydraulically connect the fluid machine. The assembly (1) further comprises valve means (108, 112) that can be actuated for enabling a first hydraulic connection (106) between the low-pressure branch (30) of the first hydrostatic transmission (2) and the low-pressure branch (74) of the second hydrostatic transmission (8)..

06/13/13
20130149179 

Scroll fluid machine


A disc-like spacer arranged below a first roller bearing rotatably supporting a driven crankshaft that forms an anti-rotation system is formed with a plurality of notches in the circumferential direction. A spot face is provided to face the outer circumferential surface of the spacer, and communication holes and are drilled on the outer circumferential side of the spot face to extend in the axial direction of the scroll.

05/30/13
20130138037 

Medical fluid machine with supply autoconnection


A medical fluid system including: fluid containers and a tube extending from same, each tube including a cap; a pumping cassette including port spikes; a medical fluid machine including: occluders; a shuttle configured to receive the tubes, wherein each tube is associated with one of the occluders; a driving mechanism translating the shuttle; a cap removal device between the cassette and the shuttle; and a control unit programmed to cause: (i) the occluders to pinch their tubes, (ii) cause the driving mechanism to translate the shuttle towards the fluid pumping cassette, the cap removal device engaging the tube caps, (iii) the driving mechanism to translate the shuttle away from the fluid pumping cassette and cap removal device, pulling the tube caps off of the tubes, and (iv) the driving mechanism to translate the shuttle back towards the fluid pumping cassette for the port spikes to spike the occluded tubes.. .

05/30/13
20130134720 

Waste heat utilization apparatus


A rankine cycle circuit is constituted by an expander, which forms a fluid machine, a condenser, a gear pump, which forms a fluid machine, and a boiler. A discharge passage is connected to a discharge chamber of a pump chamber.

05/23/13
20130129550 

Scroll-type fluid machine


A scroll-type fluid machine in which: a fixed scroll and a moveable scroll are disposed in a housing; a fluid pocket, the volume of which varies, is formed between the fixed scroll and the moveable scroll; and a thrust plate for receiving the reaction force in the axial direction of pressure applied within the fluid pocket is disposed between the bottom plate of the moveable scroll and the housing. The scroll-type fluid machine is characterized in that at least the surface of the thrust plate facing the bottom plate of the moveable scroll is subjected to tin plating.

05/02/13
20130108415 

Axial-flow fluid machinery, and variable vane drive device thereof


A variable vane drive device includes a movable ring disposed at an outer circumferential side of a casing of an axial-flow compressor and having an annular shape, four ring support mechanisms disposed at intervals in a circumferential direction of the movable ring and rotatably supporting the movable ring around a rotor, and a link mechanism for connecting the movable ring to a variable vane such that a direction of the variable vane is varied by rotation of the movable ring. The ring support mechanisms have inner rollers, outer rollers, and roller support bases for rotatably supporting the inner rollers and the outer rollers in a state in which the movable ring is sandwiched between the inner roller and the outer rollers..

05/02/13
20130104356 

Blade, impeller, turbo fluid machine, manufacturing blade


Plural saddle shape patches are formed on a blank material for forming a blade using a manufacturing apparatus provided with a punch support having punches each with a holder attached to be opposite with one another at a predetermined interval corresponding to a thickness of the blank material. The punch support is mounted to a second ram via a second rotational mechanism which is rotatable in a direction in which the ram moves.

03/21/13
20130071279 

Scroll-type fluid machine


A scroll-type fluid machine (1) in which in which a spiral body (50, 52) and an end plate (8a, 10a) come into sliding contact with each other between fixed and movable scrolls (8, 10) with a chip seal (56, 58), which is provided to the spiral body, intervening therebetween. The spiral body of at least one of the scrolls is provided, in the corner on the end plate side thereof, with a base portion (62) formed of a concave arc face (64), and the chip seal of the other scroll is provided, in the corner of a tip end (56a) thereof, with a fillet (70) that is formed of a first convex arc face (72) that comes into sliding contact with the concave arc face..

03/21/13
20130068027 

Method and monitoring of component housing wall thickness and wear monitoring


A method for monitoring wall thickness of an industrial piping component or pump/fluid machinery, including a pump casing for a pump used for pumping an abrasive fluid or slurry, comprising providing a signal containing information about a ultrasonic-based transducer pulse from a discrete ultrasonic-based transducer attached directly on an industrial piping component or pump/fluid machinery at a local point of interest and configured to inject the ultrasonic-based transducer pulse into the industrial piping component or pump/fluid machinery at the local point of interest and sense the ultrasonic-based transducer pulse reflected off a wall of the industrial piping component or pump/fluid machinery at the local point of interest; and determining with an electronic monitoring system the thickness of the wall of the industrial piping component or pump/fluid machinery at the local point of interest based at least partly on the signal received containing information about the discrete ultrasonic-based transducer pulse sensed. The discrete ultrasonic-based transducer may include a discrete ultrasonic-based piezoelectric transducer..

03/07/13
20130058821 

Scroll-type fluid machine


A scroll-type fluid machine (1, 88) in which a fixed scroll (8) and a movable scroll (10), in consort, demarcate a compression or expansion chamber (60) of a lubricant-containing working fluid, the fluid machine having a housing (4) provided with a port (16) through which the working fluid passes, and a pedestal section (62) in which the port opens, and which is applied with thrust load on the back face (64) side of an end plate (10a) of the movable scroll due to the demarcation of the compression or expansion chamber. The pedestal section has a groove (72, 90) formed in a region including an opening of the port..

01/17/13
20130017114 

Fluid machine


A fluid machine (14, 102, 108) includes a plurality of fluid units (16, 20) each having a rotator (40, 66) and configured to let in and out a working fluid as the rotator (40, 66) rotates, and a drive shaft (72) to which the rotators (40, 66) of the fluid units (16, 20) are coupled, wherein an oldham coupling (85) is arranged at a shaft section of the drive shaft (72) located between the rotators (40, 66).. .



Fluid Machine topics: Fluid Machine, Radial Direction, Shaft Assembly, Scroll Compressor, Connecting Rod, Dialysis Machine, Hydraulic Connection, Rankine Cycle, Control Unit, Tin Plating, Support Base, Piezoelectric, Transducer, Ultrasonic, Demarcation

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