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




 Apparatus and  adjusting the stroke length of a movable member patent thumbnailnew patent Apparatus and adjusting the stroke length of a movable member
An apparatus and a method are provided for adjusting the stroke length of a reciprocating member such that the stroke length can be infinitely varied between a minimum and a maximum stroke length. A pair of crankshafts are each connected to an eccentric and configured to operate with a phase offset such that the stroke length can be varied by adjusting the phase offset..
Vamco International, Inc.


 Hydrodynamic axial plain bearing patent thumbnailnew patent Hydrodynamic axial plain bearing
Methods and systems are provided for a thrust bearing. In one example, a system may include a thrust bearing located adjacent to a crankshaft and a connecting rod..
Ford Global Technologies, Llc


 Cover member of internal combustion engine patent thumbnailnew patent Cover member of internal combustion engine
A cover of an internal combustion engine includes a cover body to be mounted to a crankcase of the internal combustion engine. The cover body includes a through hole, a protruding part, and a plurality of first recessed grooves.
Honda Motor Co., Ltd.


 Two-stroke engine patent thumbnailnew patent Two-stroke engine
A two-stroke engine is provided that has a cylinder, in which a combustion chamber is formed, and a piston, which delimits the combustion chamber and which drives a crankshaft rotatably mounted in a crankcase. The piston controls an inlet window for fuel/air mixture into the crankcase interior.
Andreas Stihl Ag & Co. Kg


 Method and system for adjusting engine cylinder operation patent thumbnailnew patent Method and system for adjusting engine cylinder operation
Various methods and systems are provided for diagnosing individual engine cylinders based on a turbocharger speed fluctuation of a turbocharger. In one embodiment, a method for an engine includes adjusting engine operation based on an indicated operating parameter of an individual engine cylinder, where the indicated operating parameter is based on at least one turbocharger speed fluctuation of a turbocharger correlated with crankshaft position..
General Electric Company


 Two-stroke engine and production series of two-stroke engines patent thumbnailnew patent Two-stroke engine and production series of two-stroke engines
A two-stroke engine has a cylinder and a transfer channel which, in the region at bottom dead center of a piston, establishes a flow connection between a crankcase interior and the combustion chamber. The crankcase has a crankcase connecting flange for connecting to the cylinder, which has a first connecting opening and a second connecting opening.
Andreas Stihl Ag & Co. Kg


 Method and apparatus patent thumbnailnew patent Method and apparatus
In some embodiments, there is provided a method of controlling a pressure gradient between a combustion chamber and a crankcase of an engine, the method having: receiving, at a control device, a signal indicating that a lubricant container is coupled to a lubricant circulation system associated with the engine, in response to the received signal, providing data to cause operation of a suction control device for facilitating control of the pressure gradient.. .
Castrol Limited


 Marine electric power steering system with cable assembly patent thumbnailnew patent Marine electric power steering system with cable assembly
A marine electric power steering system includes an actuator assembly, a gear assembly, and a cable assembly. The actuator assembly has an actuator assembly input and an actuator assembly output.
Steering Solutions Ip Holding Corporation


 Air cleaner structure of saddle-ride type vehicle patent thumbnailnew patent Air cleaner structure of saddle-ride type vehicle
A motorcycle is provided with an engine unit having a crankcase and a cylinder assembly protruding diagonally frontward and upward from the crankcase. An air cleaner box has a rearward-descending shape extending from the upper side to the rear side of the cylinder assembly as seen in a side view to form a vertically elongating box shape.
Suzuki Motor Corporation


 Electric bicycle transmission systems, methods, and devices patent thumbnailnew patent Electric bicycle transmission systems, methods, and devices
A derailleur-based electronic transmission system for an electric bicycle comprises a wheel; a driven sprocket set coupled to the wheel via at least a first one-way clutch, the driven sprocket set comprising two or more concentric sprockets of different effective diameters; a drive chain configured to engage the driven sprocket set; an electronically controllable derailleur configured to move the drive chain among the two or more sprockets; a pedal crank configured to cause rotation of the driven sprocket set by providing a user pedal force to the driven sprocket set through at least a second one-way clutch and the drive chain; a motor configured to cause rotation of the driven sprocket set by providing an electromechanical force to the driven sprocket set through at least a the drive chain; and an electronic controller configured to, responsive to a determination that a shift should occur at a time when neither the pedal crank nor the motor is causing rotation of the driven sprocket: operate the motor to rotate the driven sprocket at a rotational speed less than or equal to a current rotational speed of the wheel; and operate the derailleur to cause the shift to occur while the driven sprocket is being rotated by the motor.. .
Civilized Cycles Incorporated


new patent

Joint mechanism for humanoid robot

A joint mechanism includes: a first member; a second member; and a gear device that is provided between the first member and the second member and changes the number of revolutions at a predetermined ratio to transmit a drive force. The gear device includes a crank shaft on which a first eccentric portion is formed, a first oscillating gear that has first external teeth and an insertion hole into which the first eccentric portion is inserted, a carrier that retains the crank shaft rotatably, and an external cylinder that has an internal-tooth pin 3.
Nabtesco Corporation

new patent

Exercise device with adjustable desk

An exercise device includes a frame assembly having a base portion constructed and arranged to engage a surface, a first frame member and a second frame member, a seat, a crank pedal mechanism, an adjustable desk, and an actuator. The second frame member is configured to movable between a first position in which the desk is positioned closer to the seat so as to allow the user seated on the seat to use the desk and a second position in which the desk is positioned away from the seat so as to allow the user to stand upright on the surface with the user's body positioned between the seat and the desk to use the desk in a standing position.
Stamina Products, Inc.

new patent

Mobile crank up hunting shack

The present invention relates to a mobile hunting blind. It is a portable and adjustable hunting blind.

new patent

Cutter bar drive for a multi-section header for attachment to harvesters

A header for stalk crop has a multi-part cutter bar with oscillatingly driven cutter bar parts. Cutter bar knives of the cutter bar interact with counter knives connected to header frame.
Carl Geringhoff Gmbh & Co. Kg

Butterfly valve

A butterfly valve comprises a seat ring (1), a centered valve disc (3) and a valve axis (16). The seat ring (1) and the valve disc (3) are constructed to co-operate as first and second elements of a seal for sealing a volume in which the valve axis (16) is located from internal volume of the valve.
Belimo Holding Ag

Flywheel assembly

A flywheel assembly includes a flywheel mounted to a crankshaft of an engine to be integrally rotated therewith, and at least one centrifugal pendulum damper installed to be reciprocally moved inside the flywheel.. .
Hyundai Motor Company

Cover structure for internal combustion engine

A cover structure for an internal combustion engine includes: a plastic cover member attached to a body of the internal combustion engine so as to cover the power transmission and a metallic holding member configured to hold an oil seal pressurized to the outer circumference of the crank shaft. Also, the holding member is positionable by engaging with the body of the internal combustion engine with respect to an axial direction of the crank shaft and a planar direction perpendicular to the axial direction.
Toyota Boshoku Kabushiki Kaisha

Monitoring an engine by means of cylinder pressure sensors, preferably in lean gas engines with a flushed prechamber

A method for operating an internal combustion engine, in particular a gas engine, preferably a lean gas engine, which has at least one cylinder, in order to improve the combustion process, a prechamber is provided for igniting a mixture in a main chamber. A pressure curve is detected by a pressure sensor in the main chamber dependent on a crank angle, and the quantity of supplied fuel is controlled or regulated for each individual cylinder using a fuel metering device and the pressure sensor dependent on a desired output and/or a desired torque and/or a desired rotational speed of the internal combustion engine..
Mtu Friedrichshafen Gmbh

Vehicle control device

A control device calculates an estimate of negative intake pressure based on the relationship between the rotation speed of a crankshaft and a throttle opening degree (step s24). Then, the control device sets the estimate pe of the negative intake pressure, which is calculated in step s24, to a greater value as combustion efficiency of cng used in engine operation becomes higher (step s25).
Toyota Jidosha Kabushiki Kaisha

Internal combustion test engine with adjusting cylinder offset

A set of mechanisms, for use with an internal combustion test engine, for testing cylinder offset during operation of the engine. The test engine specifics may vary, but it is assumed to have a crankcase base that supports a cylinder barrel and cylinder head.
Southwest Research Institute

Engine configuration having various displacements

Various embodiments provide a method of varying engine displacement. The method includes determining a change in a stroke distance of the engine required to obtain a pre-determined volumetric change in a displacement of the engine.
Cummins Inc.

Four-cycle multi-cylinder engine

A four-cycle multi-cylinder engine includes a crankcase, a cylinder block, a crankshaft, and a gear-shift input shaft. The crankcase is vertically divided into an upper case and a lower case.
Suzuki Motor Corporation

Crankcase breech detection for boosted engines

Methods for indicating whether a crankcase of an engine is breeched are provided. One example method comprises restricting a communication of the crankcase with atmosphere, acting to increase or decrease a crankcase pressure, and indicating whether the crankcase is breeched based on the crankcase pressure.
Ford Global Technologies, Llc

Lubricating device for engine

The first opening part penetrates the first partition wall that separates the crank chamber and the oil sump chamber. The lubricating device of the engine includes an oil mist generation control part.
Makita Corporation

Bicycle drive mechanism to enable coasting

A drive mechanism to enable a bicycle to coast forward or backward iincludes a ratchet ring that is directly coupled to a sprocket of the bicycle. A pawl housing is directly coupled to a crank axle of the bicycle.

Drive arrangement for a vehicle, and vehicle having the drive arrangement

A drive arrangement and a vehicle; having a damper device having a damper primary side and a damper secondary side. The damper primary side forms a first drive interface for the coupling of a crankshaft of an internal combustion engine, having a freewheel device with a freewheel input and a freewheel output.
Schaeffler Technologies Ag & Co. Kg

Bicycle pedaling frequency sensor

The invention discloses a bicycle pedaling frequency sensor, comprising a signal acquisition unit arranged on a circuit board and used for acquiring motion acceleration changes and/or angular velocity changes in different rotation directions of a middle axle in real time, a data transmission unit for transmitting the acquired data to a terminal, and a power supply for supplying power to each unit to work. When in use, the pedaling frequency sensor is fixed on the hollow middle axle of a bicycle, and the middle axle, a crank and pedals of the bicycle rotate synchronously; during riding motion, acceleration change and/or angular velocity change data is acquired in real time and transmitted to the corresponding processing terminal via the data transmission unit for processing, real-time rotating frequency of the middle axle of the bicycle is obtained, and then pedaling frequency data during riding is acquired.
Shenzhen Qianhai Livall Iot Technology Co., Ltd.

Hydrokinetic torque coupling device for a motor vehicle

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4) through a reactor (5), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) adapted to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (22, 26), and adapted to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position.. .
Valeo Embrayages

Hydrokinetic torque coupling device for a motor vehicle

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4) through a reactor (5), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) able to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (21, 25) and able to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position.. .
Valeo Embrayages

Hydrokinetic torque coupling device for a motor vehicle

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) able to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (18, 22) and able to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position. .
Valeo Embrayages

Hydrokinetic torque coupling device for a motor vehicle

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) able to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (18, 22) and able to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position, the damping means (18, 22) being adapted to act against the rotation of the torque input element (11) relative to the torque output element (8), in the engaged position of the clutch means (10).. .
Valeo Embrayages

Hydrokinetic torque coupling device for a motor vehicle

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) movable between an engaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through damping means (23, 27), and a disengaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the impeller wheel (3), the turbine wheel and the damping means (23, 27).. .
Valeo Embrayages

Hydrokinetic torque coupling device for a motor vehicle

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) able to rotationally couple the torque input element (11) and the torque output element (8) in an engaged position, through damping means (21, 25) and able to rotationally uncouple the torque input element (11) and the torque output element (8) in a disengaged position. .
Valeo Embrayages

Crankshaft for an internal combustion engine

A crankshaft for an internal combustion engine includes a shaft body having a body rotation axis, with at least one crank pin for coupling a connecting rod to the crankshaft. The crank pin is connected to the shaft body in an offset manner with respect to the body rotation axis by two crank arms.
Gm Global Technology Operations Llc

Fuel injection control device for internal combustion engine

When single-injection control is executed, processing for initiating full injection is executed at a crank angle immediately before initiation of each fuel injection among crank angles at crank angle intervals of 30°. When multi-injection control is executed, processing for initiating the fuel injection is executed at a crank angle immediately before the initiation of the each fuel injection among crank angles at crank angle intervals of 10°..
Toyota Jidosha Kabushiki Kaisha

Push-button start system fault diagnosis

A method for diagnosing a no-start fault of a vehicle push-button start system including a push-button switch, where the system starts a vehicle engine if the switch is pressed and a vehicle brake is applied. The method includes detecting that a no engine crank condition has occurred if the switch is pressed and the brake is applied, and if so, performs a no crank diagnosis.
Gm Global Technology Operations Llc

Engine

An engine having improved volumetric efficiency may include a cylinder, an intake valve, a piston, an exhaust valve and a crankshaft. The cylinder may include a cylinder bore.
Doosan Infracore Co., Ltd.

Double-crankshaft variable compression ratio engine

Disclosed is a reciprocating piston engine, comprising a combined structure with an optimized double-crankshaft and variable compression ratio pistons, characterized in that the variable compression ratio piston is a piston serving as a double-acting hydraulic cylinder, a control valve bush of a slide-valve type directional control valve is fixed in a central mounting hole of the inner piston, and a control valve core is mounted in a rotatory sliding or nut-ball screw manner in a central mounting hole in the inner surface of the piston top; and the double-crankshaft engine is formed by two reverse rotating crankshafts which are coupled by gears to be in synchronous reverse rotation motion together, each piston being connected to a connecting rod shaft of two crankshafts, and a piston control valve driving mechanism being mounted between the two crankshafts.. .
Tianjin Challenging Technology Consultlng Co.ltd

Apparatus and controlling electronic continuously variable valve timing

An apparatus and method of controlling an electronic continuously variable valve timing (cvvt) is provided. The apparatus includes a sensor disposed in a motor facing a reducer and an intelligent motor controller.
Hyundai Kefico Corporation

Power-assisted bicycle

A power-assisted bicycle includes a front wheel, a rear wheel, a body frame, a bracket that mounts a power unit, and a power unit fixed to the bracket by a bolt. The power unit includes a pedal crank shaft and a motor that produces auxiliary power, and outputs each of human power applied to the pedal crank shaft and a driving force of the motor, or a resultant force of the human power and the driving force of the motor.
Yamaha Hatsudoki Kabushiki Kaisha

Bicycle pedal

A bicycle pedal, including a pedal body rotationally connected to a spindle assembly suitable to be coupled to a pedal crank, the pedal body having a central portion including a cylindrical seat in which the spindle assembly is inserted and rotatably supported. The pedal includes a plurality of spacers, inserted along the spindle assembly and/or inside the cylindrical seat, suitable to be relocated in order to modify the q-factor of the pedal..
Selle Royal S.p.a.

Head cover structure of engine and suspension structure thereof

Provided is a head cover structure of an engine, which is capable of increasing supporting rigidity of a head cover. The engine includes a driving force transmission mechanism for transmitting a driving force of a crankshaft to a valve train, in which on one end side in a cylinder row direction of the head cover, a bulging portion for covering an upper side of the driving force transmission mechanism is provided, and an engine mounting portion is attached to the bulging portion.
Honda Motor Co., Ltd.

Humanoid robot joint mechanism

A joint mechanism includes: a first member; a second member that includes a first portion and second portion; a gear device including a crank shaft on which a first eccentric portion is formed, a first oscillating gear that has first external teeth and a first insertion hole, a carrier that retains the crank shaft, and an external cylinder that has internal-tooth pins. The carrier and the external cylinder are configured to be displaced coaxially due to oscillation of the first oscillating gear.
Nabtesco Corporation

Electromagnetic rotor drive assembly

An electromagnetic rotor drive assembly for use with an internal combustion engine, the electromagnetic rotor drive assembly including a conductive coil capable of generating a magnetic field upon energization; a rotor rotatably mounted proximate the conductive coil; and a magnet coupled to the rotor, the magnet responsive to the magnetic field to angularly displace the rotor; whereby the rotor fixedly couples to a crankshaft rotated by at least one piston reciprocally disposed within a cylinder; and whereby the conductive coil is energized at a predetermined time point associated with a position of the piston within the cylinder.. .
Rk Transportation Solutions Llc

Fiber optic cable spool

Installing an optical cable at an installation location includes routing a second end of the optical cable towards the installation location; wrapping the second end of the optical cable around a portion of a cable spool at the installation location; attaching the second end of the optical cable to a connector holder disposed at the cable spool; and turning a crank arm to wind the cable spool, thereby winding slack length of the optical cable around the drum. Some types of crank arms are removable from the cable spool.
Commscope Technologies Llc

Power unit having cam chain tensioner pivot mechanism

A compact power unit with a sufficient clearance between a stud bolt and a fixing shaft of a cam chain tensioner pivot mechanism for supporting a cam chain tensioner guide. The power unit including a crankshaft, a stud bolt configured to fix a crankcase and a cylinder body to each other, a cam chain, a cam chain tensioner mechanism including a cam chain tensioner guide, and a cam chain tensioner pivot mechanism including a pivot plate, a fixing shaft, and a swinging shaft, the fixing shaft and the swinging shaft are arranged so as to straddle the axis of the stud bolt as viewed in the axial direction of the crankshaft..
Honda Motor Co., Ltd.

Engine and gear train combination equipped with a pulse compensator

An engine and gear train combination is provided which includes an engine which drives a first crankshaft having a first gear disposed thereon; a second crankshaft having a second gear and a flywheel disposed thereon, wherein the second gear meshes with the first gear; and a pulse compensator having a central element which is pivotally connected on a first end thereof to a first set of lateral members and which is pivotally connected on a second end thereof to a second set of lateral elements. Each element of the first set of lateral elements is also pivotally connected to the second crankshaft, and each element of the second set of lateral elements is pivotally connected to a mount..

Crankshaft and balancing the same

A crankshaft includes a plurality of counterweights. Each of the counterweights includes a counterweight body.
Gm Global Technology Operations Llc

Liquid cooled fan clutch

A liquid cooled viscous fan clutch transfers torque from a driving plate driven by an engine crankshaft to a driven plate connected to a cooling fan. Heat generated in a working fluid is transferred to a second fluid, such as engine coolant or transmission fluid, flowing between the driven plate and a stationary housing.
Ford Global Technologies, Llc

High-contrast engine connecting rod

After a connecting rod for an engine is formed, it is broken or fractured at a fracture point to allow the connecting rod to assemble around a portion of a crankshaft. However, before fracturing the connecting rod, the connecting rod is provided with a layer of paint across the eventual fracture point such that when the connecting rod is fractured the paint extends across both sides of the fracture point.
Ford Motor Company

Engine control apparatus

An engine control apparatus is used with a system equipped with an engine and an engine starter. The engine starter includes an electrical motor, a pinion gear driven by the electrical motor, and a pinion shifter which thrusts the pinion to a location where the pinion is engageable with a ring gear coupled to the engine.
Denso Corporation

Systems and methods for detecting damage in a positive crankcase ventilation tube

A positive crankcase ventilation (pcv) system for an engine includes: a pcv tube defining a flowpath extending along an axis; a damage detection circuit associated with the pcv tube. The pcv system also includes a damage detection module that selectively indicates that a fault is present in the pcv tube based on a change in a characteristic of the damage detection circuit and that illuminates a malfunction indicator lamp (mil) when the fault is present..
Gm Global Technology Operations Llc

Positioning the switching element for a mechanically switched vcr connecting rod

The invention relates to an internal combustion engine having an adjustable variable compression ratio, a crankshaft having a crankshaft center line and at least one counterweight, which has an extent with a maximum distance from the crankshaft center line, at least one connecting rod, an adjusting mechanism for adjusting the adjustable variable compression ratio, a switchover element for switching the adjusting mechanism, wherein the switchover element is arranged on the connecting rod, and an actuating element for switching over the switchover element from a first position, which corresponds to a first compression ratio, into a second position.. .
Fev Gmbh

Breather chamber structure for internal combustion engine

A breather chamber structure for an internal combustion engine wherein the breather chamber can be disposed compactly and the degree of freedom in the layout of the parts of the internal combustion engine can be raised. The breather chamber structure includes a crankcase, a cylinder body provided upwardly on the crankcase, and a breather chamber configured to separate oil from oil mist in the crankcase.
Honda Motor Co., Ltd.

Folded dome like retractable opening structure and method

A folded dome like retractable opening structure and method of the present invention is an hourglass in external appearance with a narrow waist and a mirrored double truncated flexible cone-like structure, with one primary truncated flexible cone-like structure on bottom intermediately supported and connected by one secondary truncated flexible cone-like structure on top. The retractable opening of the present invention is the truncated open end of the primary truncated flexible cone-like structure, where it is flexible to expand to open toward and contract to close away from its peripheral.



Crank topics:
  • Combustion
  • Turbo Charger
  • Lancing Device
  • Clutch Housing


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