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Refrigerant patents

      

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




 Active refrigerant charge compensation for refrigeration and air conditioning systems patent thumbnailActive refrigerant charge compensation for refrigeration and air conditioning systems
A variable refrigerant charge refrigeration/air conditioner system is described that allows the refrigerant charge for the system to be altered based on operating or environmental factors. The system includes a main refrigerant loop holding a volume of refrigerant corresponding to a first level of refrigerant charge, a compressor in the main refrigerant loop, a condenser in the main refrigerant loop, and an evaporator in the main refrigerant loop.
Lennox Industries Inc.


 Engine off vapor compression adsorption cycle patent thumbnailEngine off vapor compression adsorption cycle
A cooling system is disclosed so that an operator cabin can be cooled even if the engine is off. An accumulator can be used to store high-pressure refrigerant until its release.
Caterpillar Inc.


 Heat exchanger patent thumbnailHeat exchanger
A vessel for containing a refrigerant comprising an inner wall and an outer wall arranged concentrically and having an inner space bounded by the inner wall and outer wall, an inlet and an outlet for transport of refrigerant into and out of the inner space; a tube inside the inner space arranged turn around the inner wall; an input tube fluidly connected to the inner space and arranged to allow flow of the refrigerant through the input tube into the inner space; an output tube connected to the inner space and arranged to allow flow of the refrigerant out of the inner space into the output tube; a compressor arranged to receive the refrigerant from the output tube and to compress the refrigerant; and a condenser arranged to receive the compressed refrigerant fluid from the compressor, to condense the refrigerant, and to forward the compressed refrigerant into the input tube.. .
Franke Technology And Trademark Ltd


 Cryogenic refrigeration system patent thumbnailCryogenic refrigeration system
Provided is a cryogenic refrigeration system. The cryogenic refrigeration system includes a cryogenic refrigerator, and a heat dissipation module configured to cool the cryogenic refrigerator.
Sunam Co., Ltd.


 Ejector refrigeration cycle patent thumbnailEjector refrigeration cycle
In an ejector refrigeration cycle, an inlet of a nozzle portion of an ejector is connected to a refrigerant outlet side of a high-stage side evaporator, a refrigerant suction port of the ejector is connected to a refrigerant outlet side of a low-stage side evaporator, and an internal heat exchanger is provided for exchanging heat between a high-pressure refrigerant flowing into a low-stage side throttle device for decompressing the refrigerant flowing into the low-stage side evaporator, and a low-stage side low-pressure refrigerant flowing out of the low-stage side evaporator. Because a difference in enthalpy between the inlet and outlet of the low-stage side evaporator can be enlarged, the cooling capacities exhibited by the respective evaporators can be adjusted to be closer to each other even if the flow-rate ratio ge/gn of the suction refrigerant flow rate ge to the injection refrigerant flow rate gn is set to a relatively small value so as to make it possible to improve the cop of the cycle..
Denso Corporation


 Air conditioner and  operating the same patent thumbnailAir conditioner and operating the same
An conditioner including a compressor that compresses refrigerant, an outdoor unit fan that blows out the air heat-exchanged by an outdoor heat exchanger, a noise sensor that measures noise, a data part that saves noise data measured by the noise sensor, a control part that performs a low noise operation by distinguishing between ambient noise and noise made by the air conditioner based on noise measurements from the noise sensor, wherein the control part sets a target noise level according to the ambient noise, changes the operational settings of the compressor and outdoor unit fan, and controls the operation to ensure that the noise from the air conditioner does not exceed an environmental noise regulatory value.. .
Lg Electronics Inc.


 Dehumidifying and cooling apparatus patent thumbnailDehumidifying and cooling apparatus
The present invention relates to a dehumidifying and cooling apparatus, comprising: a housing in which a first channel and a second channel are formed; a heating unit disposed inside the first channel; a desiccant rotor which is rotatably provided inside the housing; a cooling unit disposed inside the second channel; and a refrigerant circulation unit having a refrigerant circulation circuit including a compressor and a condenser, wherein the condenser is disposed inside the second channel such that the refrigerant circulated therein, can be condensed by the heat exchange with the second air cooled by the cooling unit.. .
Kyungdong Navien Co., Ltd


 Screw compressor having oil separator and water chilling unit patent thumbnailScrew compressor having oil separator and water chilling unit
The present invention relates to a screw compressor having an oil separator, comprising: a compressor housing with an inlet for a refrigerant gas flow to flow in; an oil separator housing connected to the compressor housing in a fastened and sealed manner and having an outlet for the refrigerant gas flow to flow out; a compressing assembly disposed within the compressor housing and close to the inlet for compressing the refrigerant gas flow; an electric motor for driving the compressing assembly; and an oil supply device for supplying a freezing oil to the compressing assembly; the screw compressor further comprises an oil separator, the oil separator is disposed within the oil separator housing and comprises a first separator and a second separator, wherein the second separator is disposed close to the outlet, and the first separator is disposed between the compressing assembly and the second separator.. .
Carrier Corporation


 Compressor patent thumbnailCompressor
A compressor includes a discharge guide provided to communicate a discharge port and a bypass port to a discharge cover so that refrigerant discharged from the discharge port and the bypass port is guided to the discharge cover and a middle-pressure chamber formed by the fixed scroll, the back-pressure cover, and the discharge guide. The compressor according to the embodiments guarantees the space in which the bypass valve can be installed by a discharge guide mounted to a discharge portion of the fixed scroll, and at the same time forms the middle pressure portion, resulting in efficiency improvement of the compressor.
Samsung Electronics Co .. Ltd.


 Refrigerating-machine oil and working-fluid composition for refrigerating machine patent thumbnailRefrigerating-machine oil and working-fluid composition for refrigerating machine
The invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil, the refrigerating machine oil having a viscosity index of 120 or less, and being used with a 1-chloro-3,3,3-trifluoropropene refrigerant.. .
Jx Nippon Oil & Energy Corporation


Refrigerating-machine oil and working-fluid composition for refrigerating machine

The invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, and the refrigerating machine oil being used with a 1-chloro-3,3,3-trifluoropropene refrigerant.. .
Jx Nippon Oil & Energy Corporation

Hydrocarbon based refrigerant

An environmentally friendly hydrocarbon refrigerant mixture may be used as a substitute for existing refrigerant in a refrigerant system. The hydrocarbon refrigerant mixture offers greater operating efficiency and effectively replaces chlorofluorocarbon refrigerants.
Glant, Llc

Hydrocarbon based refrigerant

An environmentally friendly hydrocarbon refrigerant mixture may be used as a substitute for existing refrigerant in a refrigerant system. The hydrocarbon refrigerant mixture offers greater operating efficiency and effectively replaces chlorofluorocarbon refrigerants.
Glant, Llc

Air conditioning system for vehicle

Disclosed is an air conditioning system for a vehicle which includes a cold air passageway having a heat exchanger for cooling and a warm air passageway having a heat exchanger for heating inside an air-conditioning case to carry out cooling and heating and which controls to inhale indoor air inside the vehicle, pass the air through the heat exchanger for cooling and discharge the air outside the vehicle in a specific mode, thereby preventing frosting of the heat exchanger for cooling because supplying air of high temperature dehumidified inside the interior of the vehicle to the heat exchanger for cooling, and enhancing heating performance by rising refrigerant pressure and temperature in the refrigerant cycle without needing additional components.. .
Hanon Systems

Electric compressor

Electric compressor 1 including: an electric motor 10 which includes a rotor 2 that has six or eight magnetic poles, and a stator 3 that is disposed radially outside the rotor 2 and that has nine or twelve slots opening toward the rotor 2; a compression mechanism 20 driven by the electric motor 10 to compress refrigerant; and a casing 40 which houses the electric motor 10 and the compression mechanism 20, the electric compressor further includes four or three protrusions 41f formed protruding from either an inner periphery of the casing 40 or an outer periphery of the stator 3 so as to be spaced apart from each other in a circumferential direction, and the stator 3 is fixed to the casing 40 by way of the protrusions 41f.. .
Sanden Holdings Corporation

Heat exchanger

A heat exchanger includes a first stack portion and a second stack portion. The first stack portion has a plurality of plates which are stacked, and a first refrigerant passage and a first coolant passage are formed between the plurality of plates.
Panasonic Intellectual Property Management Co., Ltd.

Method for the production of liquefied natural gas and nitrogen

A method for the production of liquefied natural gas (“lng”) and nitrogen is provided. The method may include the steps of: a) providing a nitrogen production facility, wherein nitrogen production facility comprises: a main heat exchanger, an air separation unit, a nitrogen recycle compressor, a first nitrogen refrigeration supply configured to provide refrigeration to the main heat exchanger for cooling a main air feed, b) providing a secondary refrigeration supply; c) liquefying a natural gas stream using refrigeration from the secondary refrigeration supply to form an lng product stream; wherein the secondary refrigeration supply is configured to compress and expand a refrigerant to produce refrigeration, wherein the refrigerant of the secondary refrigeration supply is shared with refrigerant of the first nitrogen refrigeration supply.
L'air Liquide, Societe Anonyme Pour L'etude Et I'exploitation Des Procedes Georges Claude

Refrigerator and controlling the same

A refrigerator including a refrigerator body including a refrigerating compartment and a freezing compartment, a refrigerating compartment cooling circuit including a refrigerating compartment compressor for compressing refrigerant, a refrigerating compartment condenser, a refrigerating compartment expansion unit, and a refrigerating compartment evaporator for causing the refrigerant to exchange heat with the refrigerating compartment; a freezing compartment cooling circuit including a freezing compartment compressor for compressing refrigerant, a freezing compartment condenser, a freezing compartment expansion unit, and a freezing compartment evaporator; a refrigerating compartment temperature sensor; a freezing compartment temperature sensor; and a control unit for controlling the refrigerating compartment compressor and the freezing compartment compressor to be concurrently operated so as to proceed to a concurrent operation mode when the refrigerating compartment and the freezing compartment are under a concurrent cooling condition, and for controlling one or both of the refrigerating compartment compressor and the freezing compartment compressor to be operated so as to proceed to a selective operation mode in consideration of a previous operation state when the refrigerating compartment and the freezing compartment are under a selective cooling condition.. .
Lg Electronics Inc.

Air conditioner and defrosting operation method therefor

A hot gas bypass circuit that connects a discharge side of the compressor and a portion between the heat source side heat exchanger and the expansion valve, an on-off valve that opens and closes a channel of the hot gas bypass circuit, and a control device performing control to select one of hot gas bypass defrosting and reverse cycle defrosting according to a frosting amount on the heat source side heat exchanger and perform defrosting. The control device controls to open the on-off valve of the hot gas bypass circuit such that a part of a refrigerant discharged from the compressor is supplied to the heat source side heat exchanger via the hot gas bypass circuit and, the control device switches switch the four-way valve such that the refrigerant discharged from the compressor is supplied to the heat source side heat exchanger after passing through the four-way valve..
Hitachi Appliances, Inc.

System and defrosting a condensor without external heating

An improved refrigeration cycle defrosting system and method is disclosed. The device uses operation of a compressor to supply heat for the defrosting process without relying on deviation of a hot refrigerant gas from the compressor outlet or any other heating device..

Applications of liquid tank as fresh food evaporator

An appliance having a storage tank disposed on its back surface wherein the storage tank comprises a front cover and a back cover that matingly engages the front cover to form a liquid tight seal with the front cover. The storage tank further includes a phase-changing material disposed within the storage tank and a heat exchanger containing refrigerant tubing which transfers cooling from refrigerant tubing to the phase-changing solution.
Whirlpool Corporation

Method for operating a chiller

A method of operating a chiller having a closed refrigerant loop including a compressor, a condenser and an evaporator. The refrigerant used in the loop defining a pressure-enthalpy curve representative of different phases (vapor, liquid and vapor, and liquid) of the refrigerant at different combinations of pressure and enthalpy.
Johnson Controls Technology Company

Screw compressor and chiller unit provided with same

A screw compressor in which it is possible to achieve size reduction and reduce the oil rate and a chiller unit equipped with the screw compressor are provided. In the screw compressor, an oil separator includes: an outer cylinder; an inner cylinder positioned inside the outer cylinder; and an introducing flow path that lets refrigerant discharged from a compression working chamber flow in so that the refrigerant swirls to the circumferential direction on the inner wall surface of the outer cylinder.
Johnson Controls-hitachi Air Conditioning Technology (hong Kong) Limited

Throttle device

Provided is a throttle device to decompress a refrigerant cooled by a condenser in a refrigerating cycle and to deliver the refrigerant to an evaporator, where a minimum space between a needle valve and a valve port can be accurately set. Inside a cylindrical main body case including a primary chamber connected to the condenser and a secondary chamber connected to the evaporator, a valve seat member formed with a valve port and a cylindrical guide member integral to the valve seat member are provided.
Kabushiki Kaisha Saginomiya Seisakusho

Air-treatment use with building

An air-treatment apparatus is for use with a building having a building air-duct circuit. The air-treatment apparatus includes an air-handler assembly configured to urge the flow of heat along the building air-duct circuit of the building.

Composition based on 2,3,3,3-tetrafluoropropene

A composition including a lubricant based on polyol esters (poes) or polyvinyl ether (pve) and a refrigerant f including from 1 to 99% by weight of 2,3,3,3-tetrafluoropropene (hfo-1234yf) and from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-hfo-1234ze). Also, the use of the composition in refrigeration, air conditioning and heat pumps..
Arkema France

Air conditioning device for vehicle

An air conditioning device for vehicle includes a first water-refrigerant heat exchanger, a second water-refrigerant heat exchanger, a first bypass passage and a second bypass passage. The first bypass passage branches at a point of a coolant passage from a cooling portion of a heating component the vehicle to the second water-refrigerant heat exchanger, and the first bypass passage is capable of being communicated with the coolant passage at an upstream side of the first water-refrigerant heat exchanger.
Panasonic Intellectual Property Management Co., Ltd.

Heat exchange system for patient temperature control with multiple coolant chambers for multiple heat exchange modalities

Cold plates through which refrigerant flows define a slot between them that can receive a cassette through which sterile working fluid with a relatively low flow rate flows from an intravascular heat exchange catheter. The working fluid from the catheter is heated or cooled by heat exchange with the cold plates through the walls of the cassette to maintain the sterility of the working fluid.
Zoll Circulation, Inc.

Heat exchanger

A microchannel type heat exchanger is provided. The heat exchanger may include a first heat exchanger and a second heat exchanger, in which a plurality of flat tube may be provided.
Lg Electronics Inc.

Air separation apparatus

A method and apparatus for separating air in which production of the liquid products can be selectively varied between high and low production rates by varying the pressure ratio across a turboexpander used in imparting refrigeration with the use of a branched flow path. The branched flow path has a system of valves to selectively and gradually introduce a compressed refrigerant air stream into either a booster compressor branch having a booster compressor to increase the pressure ratio during high modes of liquid production or a bypass branch that bypasses the booster compressor to decrease the pressure ratio during low modes of liquid production.

System and liquefacation of natural gas

By using the power generated by an expander by an expansion of material gas, the outlet pressure of a compressor is increased, and a requirement on the cooling capacity of a cooler is reduced. The liquefaction system (1) for natural gas comprises a first expander (3) for generating power by expanding natural gas under pressure as material gas; a first cooling unit (11, 12) for cooling the material gas depressurized by expansion in the first expander; a distillation unit (15) for reducing or eliminating a heavy component in the material gas by distilling the material gas cooled by the first cooling unit; a first compressor (4) for compressing the material gas from which the heavy component was reduced or eliminated by the distillation unit by using the power generated in the first expander; a second heat exchanger for exchanging heat between the material gas introduced into the first compressor and the material gas compressed by the first compressor; and a liquefaction unit (21) for liquefying the material gas compressed by the first compressor by exchanging heat with a refrigerant..
Air Products And Chemicals, Inc.

Refrigerator

A refrigerator includes a compressor that is configured to compress a refrigerant, a condenser that is configured to condense the refrigerant compressed in the compressor, an expander that is configured to depressurize the refrigerant condensed in the condenser, a first evaporator provided at one side of a refrigerator compartment, and that is configured to evaporate the refrigerant depressurized in the expander, a second evaporator provided at one side of a freezer compartment, and that is configured to evaporate the refrigerant depressurized in the expander, a valve unit provided at an outlet pipe of the condenser, and that is configured to introduce the refrigerant into at least one of the first or second evaporators, and a hot gas path that connects the valve unit to the second evaporator, and that is configured to guide flow of the refrigerant that has passed through the condenser.. .
Lg Electronics Inc.

Low ambient cooling scheme and control

A system and method for controlling pressure during low ambient conditions when operating in a cooling mode are provided. One or more controllers may be operable to receive a measurement of a first head pressure at a refrigerant line and determine whether the first head pressure is below a pre-determined minimum head pressure threshold.
Lennox Industries Inc.

Refrigerator

A refrigerator includes a first refrigeration cycle unit that is configured to circulate a first refrigerant and that includes a first compressor, a first condenser, a first expansion device, and a first evaporator, a second refrigeration cycle unit that is configured to circulate a second refrigerant and that includes a second compressor, a second condenser, a second expansion device, and a second evaporator, a first valve unit installed at an outlet side of the first compressor, and a first hot gas path configured to extend from the first valve unit to the second evaporator and configured to supply the first refrigerant to the second evaporator.. .
Lg Electronics Inc.

Refrigerator

A refrigerator includes a compressor configured to compress a refrigerant, a condenser configured to condense the refrigerant compressed in the compressor, an expander configured to depressurize the refrigerant condensed in the condenser, a plurality of evaporators configured to evaporate the refrigerant depressurized in the expander, a first valve configured to be operated to introduce the refrigerant into at least one of the plurality of evaporators, a hot gas valve device disposed at an inlet side of the first valve and configured to guide the refrigerant passed through the compressor or the condenser to the plurality of evaporators, and a hot gas path configured to extend from the hot gas valve device to the plurality of evaporators.. .
Lg Electronics Inc.

Throttle device

A throttle device to decompress a refrigerant and to deliver the refrigerant to an evaporator, may have an opening level of a needle valve controlled following a condensation pressure. Inside a case including a primary chamber connected to the condenser and a secondary chamber connected to the evaporator, a valve seat formed with a port and a guide integral to the valve seat are provided.
Kabushiki Kaisha Saginomiya Seisakusho

Hvac unit with hot gas reheat

The present disclosure is directed to a single compressor hvac system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device.
Johnson Controls Technology Company

Hvac unit with hot gas reheat

The present disclosure is directed to a single compressor hvac system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device.
Johnson Controls Technology Company

Hvac unit with hot gas reheat

The present disclosure is directed to a single compressor hvac system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device.
Johnson Controls Technology Company

Filling station for cryogenic refrigerant

A filling station for filling a liquid cryogenic refrigerant from a supply tank to a receiver tank, the filling station comprising a flash tank between the supply tank and the receiver tank, adapted to de-pressurize the refrigerant that is transferred from the flash tank to the receiver tank, resulting in formation of a liquid cryogenic refrigerant phase and a vapour cryogenic refrigerant phase within the flash tank, and to phase separate the liquid and vapour cryogenic refrigerant phase, and a pump between the flash tank and the receiver tank, adapted for pumping the refrigerant out of the flash tank to the receiver tank, wherein the flash tank has a size and the pump has an outflow of refrigerant such that the ratio between the size of the flash tank and the outflow of refrigerant out of the pump is equal to or more than 1.. .
Praxair Technology, Inc.

Filling station for cryogenic refrigerant

A filling station for filling a liquid cryogenic refrigerant from a supply tank to a receiver tank, the filling station comprising a flash tank between the supply tank and the receiver tank, adapted to de-pressurize the refrigerant that is transferred from the flash tank to the receiver tank, resulting in formation of a liquid cryogenic refrigerant phase and a vapour cryogenic refrigerant phase within the flash tank, and to phase separate the liquid and vapour cryogenic refrigerant phase, and a pump between the flash tank and the receiver tank, adapted for pumping the refrigerant out of the flash tank to the receiver tank, wherein the flash tank is equipped with a level control unit that is arranged to keep the level of the liquid cryogenic refrigerant phase within the flash tank at a predetermined minimum.. .
Praxair Technology, Inc.

Compressor and air conditioner

The invention discloses a compressor. The compressor includes a first primary cylinder, a second primary cylinder and a secondary cylinder, which are stacked, a separator is provided between two adjacent cylinders.
Green Refrigeration Equipment Engineering Research Center Of Zhuhai Gree Co., Ltd.

Method of selecting refrigerant-lubricant combinations

The present invention provides methods for selecting refrigerant and lubricant combinations for use in heat transfer cycle systems and provides methods for operating said heat transfer system. More particularly, the invention provides methods to select lubricant and refrigerant combinations for a heat transfer cycle system wherein at the lower temperatures of the heat transfer cycle the refrigerant and lubricant are miscible and at the upper temperatures of the heat transfer cycle the refrigerant and lubricant are phase separated and such that the density phase inversion temperature of the combination is below the upper operating temperature of the heat transfer cycle..
Arkema Inc.

Use of r-1233 in liquid chillers

This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with chloro-trifluoropropenes. The chloro-trifluoropropenes, particularly 1-chloro-3,3,3-trifluoropropene, have high efficiency and unexpectedly high capacity in liquid chiller applications and are useful as more environmentally sustainable refrigerants for such applications, including the replacement of r-123 and r-11..
Arkema Inc.

Vehicular air-conditioning system with a switching heat exchanger

An air-conditioning system for a vehicle includes a switching heat exchanger. The switching heat exchanger includes a heat exchanger core, a receiver tank, and a switch valve.
Denso International America, Inc.

Washing and drying machine

A washing and drying machine has a treatment tub and comprises: a washing circuit for drawing liquid from the tub and conveying it back into the tub, having a pump and means for heating the liquid; a drying circuit for extracting air from the tub and conveying it back into the tub, having a first fan, means for dehumidifying the air, and means for heating the dehumidified air; and a heat-pump arrangement having a refrigerating circuit for a refrigerant fluid, which includes a first condenser, a first evaporator, a first lamination valve, and a compressor. The means for heating the liquid comprise the first condenser, and the refrigerating circuit further comprises a second condenser, in series to the first condenser, and a second evaporator.
Indesit Company S.p.a.

Warewasher with heat recovery system

A warewash machine for washing wares includes a chamber for receiving wares, the chamber having at least one wash zone. A waste heat recovery unit is arranged to transfer heat from exhaust air of the machine to incoming water traveling along a water flow path through the waste heat recovery unit to a booster heater of the machine.
Illinois Tool Works Inc.

Warewasher with heat recovery system

A warewash machine includes a chamber for receiving wares, the chamber having at least one wash zone. A refrigerant circuit includes multiple condensers including a condenser to deliver refrigerant heat to incoming water that is being delivered into the machine.
Illinois Tool Works Inc.

Warewasher with heat recovery system

A warewash machine includes a chamber for receiving wares, the chamber having at least one wash zone. A refrigerant medium circuit includes a first condenser and a second condenser, the first condenser located upstream of the second condenser in the refrigerant circuit.
Illinois Tool Works Inc .

Warewasher with heat recovery system

A warewash machine includes a chamber for receiving wares, the chamber having at least one wash zone. A refrigerant medium circuit includes a first heat exchanger arranged to deliver refrigerant medium heat to a first fluid and a second heat exchanger arranged to provide a heat exchange relationship between the refrigerant medium and a second fluid, the first heat exchanger located upstream of the second heat exchanger in the refrigerant medium circuit.
Illinois Tool Works Inc.

Electronic part cooler

A cooler with a cooler main body that, in one configuration, includes a first wall portion forming a cooling surface that cools an electronic component, a second wall portion disposed opposing the first wall portion, and a side wall portion that connects a periphery of the first wall portion and a periphery of the second wall portion. In the configuration, cooling fins are attached to an inner wall surface of the first wall portion, a refrigerant introduction pipe and refrigerant introduction flow path for supplying refrigerant to the cooling fins and a refrigerant discharge pipe and refrigerant discharge flow path for ejecting refrigerant from the cooling fins are included, and protruding portions and are provided on the first wall portion side of the refrigerant introduction flow path..
Fuji Electric Co., Ltd.



Refrigerant topics:
  • Refrigerant
  • Heat Exchanger
  • Evaporator
  • Control Unit
  • Air Conditioning
  • Phase Change Material
  • Condensation
  • Phase Change Materials
  • Contraction
  • Automotive
  • Bladeless Turbine
  • Air Conditioner
  • Calculator
  • Magnetic Refrigeration
  • Global Warming


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    This listing is a sample listing of patent applications related to Refrigerant for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Refrigerant with additional patents listed. Browse our RSS directory or Search for other possible listings.


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