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JP3526674B2 |
To provide a static hydraulic type continuously variable transmission whose cylinder block is equipped with a annular high pressure oil path and a plurality of valve holes stretching radially as intersecting the oil path, which are produ...
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JP2004512454A |
A wobble plate engine (20) includes a wobble plate assembly (26) having a wobble plate (58) that rolls against truncated cone portions (42) of a housing (22) and has an inner extremity (60) rotatably supported by an axially inclined annu...
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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...
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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...
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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), ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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JP2003504275A |
A drive system for use in a bicycle or the like, which includes a manually-operable member and a drive train connected to the member for transferring drive from the member to at least one of the bicycle wheels. The member is mounted for ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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JP2002283858A |
To solve the problem that a conventional HST mounting structure, which a HST pump and a HST motor are furnished in a transmission case and connected with by setting up a filter outside of the case through piping, increases cost and cause...
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JP3330735B2 |
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JP2002256804A |
To minimize the effect of mixture of oil and a working medium in a casing of a rotary fluid machine.Inside casings 12, 15, 18 of an expander for converting thermal energy and pressure energy of a working medium into mechanical energy is ...
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JP2002243037A |
To prevent efficiency reduction and seizure on the HST 24 side when using lubricating oil used for an engine and a hydraulic fluid of an HST 24 in common for a power unit U having integrally an engine 13 and the HST 24.By constituting so...
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JP2002242824A |
To provide a hydrostatic transmission 24 (HST) suitable for a vehicle by solving an inconvenience accompanying with a high speed rotation of a swash plate type hydraulic piston pump 30.A cylinder barrel 56 is integrally molded to a pump ...
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JP2002227998A |
To secure a high cooling effect of a working fluid and effectively increase a damage of component parts of a pump and a motor due to a heating of a leakage oil inside a pump case and a motor case.For a hydraulic driving system of a runni...
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JP3312175B2 |
To provide a hydraulic transmission stored in an integrated housing. This hydraulic transmission is made up of an integrated cast housing which has an outside shell having an internal compartment and provided with side walls facing each ...
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JP2002211873A |
To solve the problems that at the operation start of a lifting magnet, a peak current flows transiently not to keep the rotating speed of a generator driven by a hydraulic motor, and that the input torque to a hydraulic pump for a work m...
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JP2002206622A |
To facilitate the assembly of a housing 20 with a center section 5 in a hydraulic continuously variable transmission 1 comprising an output shaft 32 pivotally supported on bearing hole parts 20b and 5b formed in the housing 20 and the ce...
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JP2002205561A |
To provide a HST capable of effectively suppressing distance fluctuation between a PTO shaft tip part and a drive axle, even if a separated distance from the drive axle to the HST is different.This transmission is provided with a HST hou...
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JP3303114B2 |
PURPOSE: To provide a valve which is formed compact and comparatively inexpensive and has acceleration valve capability and reduction of and protection from excess pressure. CONSTITUTION: A pilot valve 95 is mounted adjacent to each acce...
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JP3294265B2 |
A continuously variable transmission includes a pump (258) driven by an input shaft (256) against a wedge-shaped swashplate (260). Hydraulic fluid pressurized in the pump flows through ports (402) in a pump cylinder block (422) into kidn...
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JP2002145107A |
To improve traveling stability and operability.In a traveling system comprising a main hydraulic transmission 2 for traveling, left and right side clutches 15, 15', a differential mechanism 22, and a hydraulic transmission 29 for turning...
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JP2002106674A |
To provide a simple structure for feeding a hydraulic fluid by branching one charge port into charge circuits of two HSTs without increasing the thickness of an oil path plate in a two-pump two-motor integrated hydraulic continuously var...
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