Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 451 - 500 out of 1,448

Document Document Title
JP3886534B2
A continuously variable hydrostatic transmission includes axially aligned input and output shafts journaled by a transmission housing and respectively coupled to a prime mover and a load. The input shaft drives a hydraulic pump unit, whi...  
JP2007022197A
To provide a wheel motor device capable of directing a hydraulic oil port and an oil port to proper directions respectively, in a wheel motor device with a hydraulic motor unit having a motor housing provided with the hydraulic oil port,...  
JP3869340B2
To solve a problem that miss assembly of one side surface and another side surface of a thrust plate can not be discriminated and efficiency drops with the lapse of time in a conventional HST. This transmission 10 is constructed in such ...  
JP3853932B2
To provide a lockup state automatically, by switchingly controlling motor ports by second distributing valves in a position where a phase is shifted by a specific angle relative to motor cylinder holes in the circumferential direction of...  
JP2006292141A
To provide a variable displacement type hydraulic pump unit, which reduces manual control force and manual control volume for changing a volume of a hydraulic pump main body.This variable displacement type hydraulic pump unit is connecte...  
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 ...  
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 ...  
JP2006220183A
To provide a lubricating structure for a hydrostatic continuously variable transmission in which a hydraulic circuit made up of a high-pressure oil passage for feeding operation fluid from a hydraulic pump to a hydraulic motor side and a...  
JP2006220181A
To provide a clutch mechanism for a hydrostatic continuously variable transmission, capable of easily manufactured with a roller supporting member constructed to be machined suitable to a shape, wherein a hydraulic circuit consisting of ...  
JP3778370B2
PURPOSE: To provide a combined structured body of two pressurized fluid motors fed the hydraulic pressure in parallel. CONSTITUTION: This device provided with casings 4A4B, 38A38B of respective motors 1, 2, cylinder blocks 13, 45 rotatab...  
JP2006046653A
To provide an improved seal ring for a static-pressure transmission.This seal ring has a side face including a part chamfered with the irregular shape, thus a seal immediately crosses and moves a mounting groove of the static-pressure tr...  
JP2006027410A
To provide a pump device which can increase the efficiency of the changing work of a hydraulic pump body and maintenance work.The pump device is provided with a base unit and a pump unit. The base unit has an input part connected to a dr...  
JP2006021664A
To avoid power loss when traveling straight, and to smoothly perform transference from straight traveling to turning without complicating transmission structure, and to reduce shock due to rotation difference when transferring from strai...  
JP2005351280A
To provide an actuator which achieves down-sizing of a motor pump and reduction in cost by imparting an assisting force provided by an oil pump to a rotation drive motion of the motor pump.The actuator comprises a hydraulic drive mechani...  
JP3724929B2
To provide a cylinder block structure excellent in mass productivity in a swash plate type hydraulic device to be used as a swash plate type hydraulic pump and a hydraulic motor. A plurality of block plates 41 to 45 divided by a dividing...  
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...  
JP2005282570A
To optimize performance by providing continuously variable drive ratio between an engine and an supercharger and providing substantially constant drive speed to the supercharger by a drive assembly for the supercharger for the internal c...  
JP2005256977A
To carry out the positioning and holding of a rotary body without providing a sleeve on an output shaft.The hydrostatic continuously-variable-transmission (CVT) is configured by coupling a constant displacement hydraulic pump P with a va...  
JP3695576B2
To reduce oil leakage and increase efficiency at hydrostatic variable transmission in combination with a swash plate hydraulic pump and a swash hydraulic motor. The hydrostatic variable transmission integrally connected is characterized ...  
JP3696382B2
To easily and quickly process a cylinder block using a parallel multi- axis tool, and simultaneously, make the constitution in the radial direction more compact by disposing a first and a second valve hole in parallel with the axial line...  
JP3696383B2
To provide a swash plate type hydraulic device which allows plunger swash plates and valve swash plates to be processed with ease, and makes its mass productivity high, and is excellent in follow-up properties for plungers and distributi...  
JP3693888B2
To save the time and labor required for repositioning of a crankcase with respect to a jig during post-casting machining of the crankcase in a power plant for a vehicle equipped with a swash plate type hydrostatic continuously variable t...  
JP2005226704A
To provide a HST for a working vehicle having durability without changing the fixed operation position of a cruise control operation tool after long-time use.The hydrostatic continuously variable transmission device for the working vehic...  
JP3671073B2
To improve the workability and reliability in assembling by merely inserting a pair of holding members into an assembling position and assembling a damp valve pivotally about the holding part from an unactuated position to an actuated po...  
JP2005170254A
To provide a steering vehicle wheel driving unit having an excellent maintenance property while improving a steering property of a steering wheel, and a four-wheel drive vehicle equipped with it.This steering vehicle wheel driving unit 1...  
JP2005155686A
To provide an axle driving device having such configuration that a pair of left and right hydraulic motors are provided in an axle case, left and right axles are independently driven by each hydraulic motor, and a differential lock mecha...  
JP2005127417A
To improve durability of a liquid-tightness holding part by supplying to the liquid-tightness holding part a lubricant different from a hydraulic fluid for driving an hydraulic driving device.In the hydraulic driving device, seal parts 9...  
JP2005082128A
To provide an HST mounting structure for a working vehicle which can house HST in the interior of transmission cases (4, 5), can minimize the length of the transmission cases, can render the whole vehicle compact, and, by virtue of bridg...  
JP3630802B2
To make the size in an axial direction small by disposing at least one end of a bearing inside the inner surface (rotor side surface) of an annular plate part of a side plate. A rotor 12 rotating slidingly on the inner surface of a cylin...  
JP3626236B2  
JP3623101B2
An object of the present invention is to provide a hydrostatic transmission system integrally constructed without being large-sized while incorporating a variable displacement motor therein. In order to accomplish the object, a casing 11...  
JP3617856B2  
JP3613365B2
To perform reliable traveling shift operation and steering turn operation, to improve reliability during the stop of a traveling device and bringing it into neutral and during straight advance wherein no turn steering operation is effect...  
JP3603365B2  
JP3599136B2
To automatically operate a clutch valve using oil pressure of a low pressure oil passage in a hydrostatic pressure type continuously variable transmission of such constitution that a hydraulic pump and a hydraulic motor are connected thr...  
JP2004340190A
To provide the driving apparatus of a vehicle which driving apparatus can simplify a mechanism and can increase a torque.The driving apparatus 1 comprises trochoid motors 50FL to 50RR mounted on the inside of wheels 80FL to 80RR, a hydra...  
JP3596992B2
A combined mode hydrostatic transmission comprises a differential hydraulic motor and a variable capacity hydraulic pump for supplying this motor with pressurized oil. The differential hydraulic motor comprises a swash plate connected to...  
JP3596993B2
A differential hydraulic motor comprises a swash plate joined to an output shaft, and a cylinder block joined to an input shaft. A change-over valve is provided which changes over according to the relative rotation of the output shaft an...  
JP3596692B2  
JP2004301283A
To provide a hydraulic continuously variable transmission having such configuration that provides a distinguishing symbol display part at a position visible from the outside.This hydraulic continuously variable transmission CVT is consti...  
JP2004301287A
To prevent air from remaining in a pump plunger hole.This hydraulic continuously variable transmission is composed of an axial plunger pump P composed of a pump cylinder 22 having a pump plunger hole 22a and a pump plunger 23 fitted into...  
JP3568135B2
To facilitate a structure of an oil passage by providing a rotary pump on one or both outer peripheries of a cylinder block of a hydraulic pump, and constituting the rotary pump on a charge pump for supplying operating oil to a closed ci...  
JP3566728B2
To control the transmission ratio of a continuously variable hydrostatic transmission including an input shaft, an output shaft, an pump unit driven by the input shaft, a grounded motor unit, and an a wedge-shaped swashplate drivingly an...  
JP3566729B2
A continuously variable hydrostatic transmission includes an input shaft connected to drive a hydraulic pump unit, a grounded hydraulic motor unit, and an output shaft. A wedge-shaped swashplate is pivotally mounted to the output shaft i...  
JP2004251399A
To improve work efficiency by making it possible to dispose a hydraulic pump and motors 29 and 30 separately at desired positions in a machine body of a work machine or the like using conventional ones for the hydraulic pump 29 and the m...  
JP3561340B2  
JP3561348B2
To provide a hydrostatic continuously variable transmission (T) including a constant displacement type swash plate hydraulic pump (P) and a variable displacement type swash plate hydraulic motor (M), wherein a thrust load generated betwe...  
JP2004197904A
To solve a problem in a conventional continuously variable hydraulic transmission that as a port block is accommodated inside of a transmission case, it can not be used as a strengthening member of the transmission case, and further each...  
JP2004169929A
To reduce size and cost in a hydraulic continuously variable transmission in which two hydraulic motors are installed on an axial hydraulic pump so that hydraulic oil is circulated in a closed hydraulic circuit.The variable displacement ...  
JP2004150632A
To provide a multispeed fluid pressure operating device for avoiding cavitation and noises during a shift, and a shifting operation control method for the same.A gerotor motor 10 has motor valve means 19, 43 for distributing fluid betwee...  

Matches 451 - 500 out of 1,448