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Patent Searching and Data


Matches 651 - 700 out of 2,020

Document Document Title
JP2004114920A
To provide a power transmission device of an engine for a vehicle capable of suppressing frequency of ratio change of a continuously variable transmission by supplying driving force when the engine rotates at low speed when engine genera...  
JP2004108552A
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 a...  
JP2004108502A
To provide a lubricating device of power unit for a vehicle with an internal combustion engine in which weight distribution is laterally well-balanced for transmitting to a wheel the power of an internal combustion engine, whose crank sh...  
JP2004092694A
To solve the problem in a conventional two-pump, 2-motor type hydraulic continuously variable transmission hat a filter provided in the middle of a charging circuit to remove foreign matter or the like in a working fluid requires a large...  
JP2004508524A
Hydraulically driven apparatus where the rotation of a ground contact wheel (3) automatically rotates a second device requiring drive (5) via a circuit (15, 16) and hydraulic motors (4,6) attached to the wheel (3) and second device (5), ...  
JP3507142B2
PURPOSE: To form a device in a compact manner and to perform simple setting of the pressure of a relief valve from the outside by arranging a check valve and a relief valve in series to a valve case, in a closing circuit to interconnect ...  
JP2004068857A
To provide a differential device for a working vehicle embodied as a compact center differential device as an improvement of the conventional problem with a mower working vehicle whose driving force is enhanced by means of four-wheel dri...  
JP2004068758A
To provide a fluid machine working as a rotary means with simple configuration which is difficult to damage and is superior in utility.The machine accommodates a rotor in its entirety 11 of a main rotor 10, a protuberance 13 protruded fr...  
JP2004068974A
To solve a conventional problem that when a housing of a servo mechanism is formed separately from the housing of an HST main body for providing the servo mechanism to a two-pump two-motor type HST, or an actuator for operating swash pla...  
JP3501837B2
PURPOSE: To enhance the driving performance in a shift lock condition by providing stopper surfaces for locking auxiliary pistons at a position corresponding to a predetermined speed ratio, in a cylinder and by connecting oil chambers in...  
JP3497322B2
To provide a continuously variable transmission which has a small size in the axial direction and a compact form, and can control the speed change ratio from the infinity to a speed increasing condition continuously. To a common cylinder...  
JP2004028131A
To solve a conventional problem of incapability of inserting a check valve wholly through a main circuit when it is inserted in a perpendicular direction to the main circuit in the case two hydraulic continuously variable transmissions a...  
JP2004019836A
To provide a hydraulic continuously variable transmission capable of easily performing a pre-load to a thrust/radial bearings for supporting each of the swash plates of first and second hydraulic devices, and a power transmission apparat...  
JP2004019835A
To provide a hydraulic continuously variable transmission allowing the size in the radial direction thereof to be reduced by eliminating the need of bearings to be arranged on the outer periphery of a cylinder block, and a power transmis...  
JP2004011769A
To provide an HST capable of increasing the maximum torque while restricting modification to an existing hydraulic system to the minimum scale.A variable displacement type hydraulic pump P, and two hydraulic motors M1 and M2 actuated by ...  
JP2004009793A
To provide an axle drive capable of attaining size reduction and easy parts control by disposing a hydraulic continuous transmission mechanism in a housing, extending a hydraulic pump input shaft of the hydraulic continuous transmission ...  
JP3480994B2
PURPOSE: To reduce the burden of a brake and simplify decelerating and stop operation in a vehicle constituted in such a way that the power of an engine is speed-changed by a statically hydraulic transmission to drive a travel device. CO...  
JP2003329103A
To compose a third connection part so as to have sufficient strength against a work load imposed on the third connection part by increasing the shaft diameter of the third connection part in a pump shaft without causing such inconvenienc...  
JP2003306052A
To provide a pump unit having a simple structure for branching and outputting drive force from a drive source to a sub transmission path separately from a main transmission path to be formed along with an actuator that is connected in fl...  
JP2003291675A
To restrain a foaming phenomenon, perform sealing work of hydraulic oil at a high filling rate in a short time period, and restrain foaming of the hydraulic oil circulating inside a work.This hydraulic oil sealing system and method for h...  
JP3448337B2
PURPOSE: To improve the service life of a thrust bearing by reducing the reaction force of a plunger for a motor to be applied to a thrust bearing to support a rear cover, and reduce the cost by dispensing with a thrust bearing exclusive...  
JP3441093B2
PURPOSE: To reduce the torsional force acting on a shaft and achieve the compact formation by supporting a cylinder block which is formed by coaxially joining a pump cylinder and a motor cylinder in rotatable manner on a casing, and inst...  
JP3434432B2
To provide a reduction gear device to generate low speed and high torque rotation and reduce size and weight and be manufactured at a low cost. The output shaft 2 of a reduction gear consists of a plurality of rotary shafts 2a and 2b rot...  
JP2003194182A
To provide a hydraulic transmission capable of smoothly changing the number of operations of a motor mechanism while rotating an output shaft.The hydraulic transmission has a speed change valve 50 having a low speed position (a) at which...  
JP2003194183A
To provide a hydrostatic continuously variable transmission capable of being driven while effectively lubricating and cooling cylinder blocks and port members.The cylinder block 32 has an oil hole 51 provided in its side face in contact ...  
JP2003520930A
Automatic transmission, comprising at least one primary hydraulic pump (1) arranged to be powered by a motor, said primary pump (1) being arranged to power a number of at least two secondary hydraulic pumps (21-2n) which are mechanically...  
JP2003180114A
To solve the problems of a stepless hydraulic transmission having a hydraulic pump shaft for inputting use and a hydraulic motor shaft for outputting use placed one above the other comprising the lowering of the bottom position of a rear...  
JP3411591B2
PURPOSE: To prevent the increase of dimension by forming the third and second annular oil passages which communicate to the first annular oil passage between a cylinder block and constituting a clutch valve from a valve cylinder fitted w...  
JP2003156121A
To prevent a situation where an oil passage for feeding charge oil from a charge pump 10 into a hydraulic oil passage 142 of an HST type continuously variable transmission contacts another object and breaks or causes oil leakage by break...  
JP2003130175A
To remove an adverse effect in a vehicle maneuverability, which is caused by growing weight imbalance of vehicle for a conventional system, because of the position of the center of gravity for conventional vehicle being too far from that...  
JP2003113776A
To provide a variable displacement type axial piston unit capable of minimizing the wear caused by a mechanical friction.This unit comprises an extension part 92 branching in three ways, and a universal joint 90 furnished at the end of t...  
JP3396055B2
PURPOSE: To make the axial dimension compact, and prevent an engine from being stopped during gear shifting operations as well as to magnify short- circuiting capacity at a neutral position in the hydraulic continuously variable transmis...  
JP2003083447A
To perform slow-speed traveling control to a work vehicle in a state of large work ability wherein an engine speed is increased.The work vehicle has a charging pump 5, a working hydraulic pump 4 and a traveling hydraulic pump 3 driven by...  
JP2003074699A
To enhance the straight running characteristic of a vehicle by supplying the same quantity of oil to a left and right hydraulic motors when the vehicle is in straight run.This control device 20 for the drive of vehicle run is composed of...  
JP2003504275A
(57) a driver system suitable as an object for summary bicycles, In order to deliver driving force one pair of pedals carried in the lever system (1, 2, 6) which performs linear レシプロ movement to the wheel of at least 1 side, the ...  
JP2003028294A
To solve such a problem that the input torque of a hydraulic continuously variable transmission is excessively increased at the time of restart of an engine and the engine cannot be started since the hydraulic pressure of a hydraulic ser...  
JP2003026072A
To obtain stable travel performance even on a snow road, a bad road, and a steep slope.This motorcycle has a rear wheel 4 driven by an engine 12, and a driven front wheel 3. A hydraulic pump 23 is connected to the rear wheel 4. A hydraul...  
JP2003028270A
To provide a compact hydrostatic continuously variable transmission easy to install for driving a crawler of a crawler type working vehicle.A casing 22 of a hydraulic pump 20 and a casing 32 of a hydraulic motor 30 are connected. An inpu...  
JP2003502593A
The invention relates to a hydrostatic traveling mechanism (1) which comprises a hydraulic pump (4), a first hydraulic engine (8) that is linked with the hydraulic pump (4) via a hydraulic work circuit (2) and that drives a first drive t...  
JP2003014111A
To provide a hydraulic continuously variable transmission and a transmission system for downsizing a cylinder block.Oil passages 65, 75 are constituted at a slant from a stepped face 42a of the cylinder block 42 to the inward to communic...  
JP2003014081A
To provide a hydraulic device and a power transmission in which a distributing valve can be smoothly reciprocated and valve holes can be easily formed.When selector valves 66, 76 are positioned in port closing positions n0, m0, stem part...  
JP2003014082A
To provide a hydraulic continuously variable transmission that can miniaturize a cylinder block commonly used by respective first hydraulic device and second hydraulic device and in its turn miniaturize the whole device.This hydraulic co...  
JP2003014079A
To provide a hydraulic continuously variable transmission and a power transmission simplifying the reciprocating structure of a distributing valve.A flange face of a flange 72 of a retainer 70 rotatable synchronously with a cylinder bloc...  
JP2003014078A
To provide a hydraulic continuously variable transmission and a power transmission capable of easily performing the speed control of output rotation over the whole rotating speed range by the displacement of an abutting part.This continu...  
JP2003014075A
To provide a hydrostatic transmission device applied to a tractor, a riding lawn mower, lawn and gardening instruments, and the like mainly in lawn and garden industry.The hydrostatic transmission device is provided with a fluid motor an...  
JP2003014080A
To provide a hydraulic device and a power transmission that can stabilize support in the axial direction of a cylinder block without causing the relative position change of a cylinder block and one wall of a case even if the case is ther...  
JP2003014077A
To provide a hydraulic continuously variable transmission and a power transmission that can miniaturize the device itself in comparison with a conventional hydraulic continuously variable transmission.This hydraulic continuously variable...  
JP2003013773A
To provide an engine control unit for a vehicle capable of reducing fuel consumption and noise by changing low speed idling to feed necessary quantity of oil when it is really necessary.The vehicle is provided with an engine 1 which burn...  
JP2003014076A
To provide a hydraulic continuously variable transmission that can widen a range where output rotation is neutral, that is, output rotating speed becomes zero.This hydraulic continuously variable transmission 20 is provided with a first ...  
JP2002364527A
To provide a displacement varying mechanism for a pump of construction allowing easy position adjustment of a detent mechanism. The displacement varying mechanism for the pump comprises a cam 10 to be rotated to vary the displacement of ...  

Matches 651 - 700 out of 2,020