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JP2009127484A |
To provide a radial piston pump capable of surely making a piston follow a cam surface, even if a flow rate to be sent is increased.This radial piston pump 10 has a cylindrical outer race 20 and a cylindrical inner race 30 arranged on it...
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JP2009121637A |
To provide a radial piston pump the cam surface of which is easily processed.The radial piston pump has an outer peripheral side member 25 and an inner peripheral side member 18 relatively rotatably arranged around the axis A1, the cam s...
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JP4266595B2 |
An improved device (10) for moving a load (11) rotationally and/or axially relative to a body (12) broadly comprises: a body; a motor (13) mounted on the body and having an output shaft (14) operatively arranged to move the load rotation...
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JP4255072B2 |
In a hydraulic power steering system employing a power cylinder accommodating therein a piston connected to a steering mechanism for steering assistance, and having first and second hydraulic chambers defined on both sides of the piston,...
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JP4253792B2 |
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JP4247986B2 |
The present invention lowers energy loss while at the same time enhancing the responsiveness of a steering control system. When a steering controller is operated rapidly, the aperture area of a steering flow control valve 4 rapidly incre...
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JP4228945B2 |
A power transmission system having an input member (6) and an output member (2) for transmitting power, and an oil pump (7) for discharging oil by a relative rotation between a first (8, 70) and a second rotary members (9, 87, 88) which ...
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JP4226207B2 |
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JP4224611B2 |
A supplemental pressurized hydraulic supply (103) provides control of a hydraulic coupling (32a,32b,32c) that normally operates in response to differential rotation between a pair of rotary members (26,28) to provide actuation of a clutc...
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JP4205658B2 |
To provide a hydraulic power transmission device having simple construction for suppressing overtorque at sudden starting or sudden braking and preventing interference with ABS at sudden braking. The hydraulic power transmission device 1...
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JP2008309321A |
To provide a piston type liquid apparatus capable of suppressing a change in the contact position of a cam with a piston.An oil pump 6 has a cam 22 provided on a first member 18, pistons 35 and 36 mounted on a second member 25, and a liq...
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JP4178453B2 |
A drive system is provided for coupling a clutch assembly with a pump assembly that provides fluid power to cool, lubricate and control the operation of the clutch. The drive system comprises a drive coupling rotatably supported on an in...
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JP4139720B2 |
In order to provide a rotationally balanced hydraulic swash plate plunger unit, a swash plate plunger pump casing is provided with an unbalanced flange to balance a casing which has a swash plate member therein, without requiring a separ...
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JP4128482B2 |
A hydraulic control system is presented that includes a hydraulic actuator, an operation command unit that provides a first control operation signal, a directional control valve unit with a directional control valve that supplies pressur...
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JP2008151340A |
To provide an electrohydraulic clutch including a bidirectional electric motor, a hydraulic circuit, and a multiple plate friction clutch pack.The bidirectional electric motor drives a ball screw through a gear reduction assembly. An ele...
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JP4073698B2 |
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JP4070554B2 |
A power unit for a vehicle with an internal combustion engine including a cylinder block and a crankshaft. A speed change drive shaft is disposed at a position on the upper side of a static oil hydraulic type non-stage transmission and i...
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JP2008508480A |
A device for controlling the activation of an apparatus by a motor, intended to be inserted between, the operation output of the motor and the operation input of the apparatus whose activation is to be controlled. The device includes: â€...
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JP2007303677A |
To provide a hydrostatic clutch assembly having simple construction for high output density, good controllability and a short energizing time. A sliding sleeve 38 is arranged coaxially with a turning axis A. The sliding sleeve is axially...
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JP3988714B2 |
A bearing unit comprises a shaft, a radial bearing for supporting the shaft in a peripheral rotation direction of the shaft, a thrust bearing supporting an end of the shaft in a thrust direction of the shaft, a housing made of a molded b...
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JP2007239759A |
To provide a power transmission device capable of restraining reduction in power transmission efficiency between a first rotary member and a second rotary member, when force is vertically generated to the operational centerline of a pist...
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JP3962348B2 |
To effectively utilize an end part of a male screw formed on a screw shaft in a ball screw mechanism for controlling swing of a swash plate. A hydraulic motor M is constituted by a motor cylinder 32 having a motor plunger hole 32a, a mot...
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JP3957061B2 |
To provide a multiple pressure oil energy selective recovery apparatus capable of selectively recovering pressure oil energy stored in each of a plurality of hydraulic actuators, on the basis of preferential recovery conditions. The orde...
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JP3916559B2 |
An assembly of valves controls hydraulic fluid flowing to several hydraulic actuators from a variable displacement pump that produces an output pressure equal to a control input pressure plus a predefined margin pressure. The control inp...
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JP2007506039A |
The invention relates to a method of using a pipeline system for storing and transporting compressed air energy generated by wind turbines, wherein the pipeline preferably extends along a predetermined route, between a remote location wh...
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JP3889573B2 |
To provide a hydraulic power transmission coupling with a plunger cam ring as a torque generating member having improved durability. The hydraulic power transmission coupling for transmitting torque corresponding to a difference between ...
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JP3881519B2 |
A rotational control apparatus (10, 10a) for controlling the transmission of rotational forces between first and second relatively rotatable members (26, 120, 120a) includes a piston (76, 76a) interconnected for concurrent axial movement...
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JP2007016910A |
To provide a power transmission device capable of suppressing resonating of a second power transmission mechanism when transmitting torque from a first power transmission mechanism to the second power transmission mechanism.The power tra...
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JP2006292162A |
To provide a hydraulic clutch having excellent transmission efficiency and a simple device structure, and to provide a hydraulic automatic transmission therewith.This hydraulic clutch 10 has: a drive side circumscribed gear pump gear 13 ...
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JP3830599B2 |
To eliminate the necessity of the specification corresponding to the high-speed rotation of auxiliary machines, and achieve simplification, by connecting a radial piston pump with a motor to each other through a cam chamber and limiting ...
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JP2006520447A |
The present invention relates to a control device for hydraulic differentials in vehicles. The object of the invention is to provide a control device for a hydraulic differential, which eliminates the necessity of wheel base devices for ...
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JP2006226512A |
To provide a power transmission device with output members to be driven by fluid discharged from a pump in such a manner that the rotating directions of the output members are changeable.The power transmission device comprises a positive...
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JP2006226463A |
To provide a power transmission device for making effective use of oil discharged from an oil pump.The power transmission device comprises the oil pump 7 driven with the rotation of a first rotating member 8 relative to a second rotating...
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JP3816757B2 |
To reduce the size of a coupling, permit the setting of an oil pressure high in a high pressure chamber and require a lower cost. This drain mechanism comprises a plate 10 provided with a communication groove communicating with an orific...
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JP3816758B2 |
To reduce the size of a coupling, permit the setting of an oil pressure high in a high pressure chamber and require a lower cost. This drain mechanism comprises a plate 10 provided with a communication groove 11 communicating with an ori...
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JP3807586B2 |
To reduce a caviation sound by press fitting in one end of the end coil part of a return spring in a drain pin having on orifice as a flow resistance generating means, and positioning the drain pin in the rotationally movable direction. ...
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JP3807585B2 |
To improve durability of strength by disposing a thermo-switch which is arranged so as to close a drain hole by push-pressing a drain pin, and which is moved in a direction for opening the drain hole abutting on a fixing pin, when it att...
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JP3802994B2 |
To prevent a shock from being felt, even if a peak torque is produced when starting on a low μ road, without locking at that moment. This power transmission coupling comprises a lock pin member 45, which when a hydraulic pressure rises ...
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JP3802995B2 |
To prevent a tight corner braking phenomenon by locking, when a temperature exceeds a prescribed value. This power transmission coupling comprises a lock pin member 42, which when a hydraulic pressure rises beyond a prescribed values, mo...
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JP2006138435A |
To provide a hydraulic power transmission device equipped with a torque limiter for suppressing excessive torque at abrupt starting and abrupt braking in a simple structure.In a torque limiter mechanism of a hydraulic power transmission ...
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JP2006112460A |
To provide a power transmission device which requires no dedicated transmission device on the output side of a power source.The power transmission device comprises a radial piston pump 7 which is driven as interlocked with relative rotat...
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JP2006112459A |
To provide a power transmission system where an oil pump and a transmission system are not required to be provided separately.A first rotational member 6 and a second rotational member 2 are arranged on a power transmission path. An oil ...
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JP3761134B2 |
To enhance the wear-resistance, pitching resistance and seizure resistance of each of a plunger side sliding surface and a cam ring side sliding surface. A hydraulic type power transmission coupling 1 has a plunger 8 and a cam ring 8 eit...
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JP2006502358A |
A clutch (A,B) includes a cam ( 20,70 ) and a rotor ( 22,74 ), both of which revolve around a common axis (X). The cam has a camming surface ( 30,72 ) provided with lobes ( 32 ), whereas the rotor carries pistons ( 26,80 ) which bear aga...
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JP2005308205A |
To simplify a filter circuit in a hydraulic drive system.The hydraulic drive system 11 comprises a pump/motor unit 35 having a pump mode to pressurize a high-pressure accumulator 41 from a port A and a motor mode to be driven from the hi...
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JP2005282687A |
To enable the imparting of relatively rotational force to right and left axle shafts even at the reverse traveling without enlarging a device.The right and left drive force distributing device is comprised of a differential to distribute...
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JP3699858B2 |
To provide a lightweight and compact coupling capable of preventing jumping of a plunger at low temperatures and abnormal noise. This coupling comprises a rotor 12 having a plurality of plunger chambers 15 formed in the axial direction, ...
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JP2005241007A |
To provide an electric-powered hydraulic clutch having an electric motor, an oil pressure or a hydraulic fluid circuit, and a multiple disc friction clutch pack.The electric-powered hydraulic clutch comprises the electric motor 80 with b...
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JP2005233102A |
To prevent reverse rotation of a pump even if oil flows reversely to the pump due to residual pressure at the time of a stop of the pump drive motor and to prevent reverse flow itself softwarewise by rotation control of the pump without ...
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JP2005171953A |
To arbitrarily set a relationship between the strokes of a piston, with the rotation angle of a rotor of a rotation fluid machine.A cam surface 25a, which changes its height in the axis L direction, is formed at a cam member 25 fixed to ...
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