The transaxle houses at least the rotating electrical machine and the gear in the case. The case of the transaxle includes a first boss portion protruding toward the vehicle member side and provided upward side, and a second boss portion protruding toward the vehicle member side and provided…

A UTV portal axle system is disclosed, including a spindle with a housing for housing input and output drive gears coupled by one or more idler gears. The output drive gear is disposed lower than the input drive gear to provide additional ground clearance to the UTV. The king pin axis angle is…

Disclosed is a system comprising a variator and a transmission. The transmission housing includes a mounting joint transmission face and one or more transmission ports disposed in the mounting joint transmission face that are fluidly connected in a one-to-one correspondence to one or more…

A vehicle electric drive apparatus is provided with a single hydraulic pump and left-side and right-side drive units. The left-side drive unit includes a left-side electric motor and a left-side transmission mechanism. The right-side drive unit includes a right-side electric motor and a right-side…

An automatic transmission where the control portion controls the adjustment solenoid valve so that the circulation hydraulic pressure equals to a second circulation hydraulic pressure higher than the first circulation hydraulic pressure when the rotational speed difference between the output…

The vehicle (1) has a drive motor (4) and a hydrostatic drive unit, where one and another axle of vehicle (13) is coupled to the drive motor through the hydrostatic drive unit comprising a hydraulic circuit (10). The drive motor is coupled with hydraulic pumps (6,7), where each of the vehicle axles…

A hydrostatic stepless transmission joined to a transmission housing includes a hydraulic pump, a hydraulic motor, a port block and a charge pump. The port block includes first and second side surfaces opposite each other. The hydraulic pump and motor are mounted on the first side surface of the…

A transaxle (10) includes an output shaft (11) to be drivingly connected to one of right and left drive wheels (2R, 2L) of a vehicle (100), a transaxle housing supporting the output shaft (11) laterally, a drive train (8) disposed in the transaxle housing (12) so as to drive the output shaft (11)…

A vehicle, comprising a frame (11,21) and a prime mover (5) mounted on the frame (11,21). A first transaxle apparatus (20) is supported by the frame (11,21) and has a housing (246,247) which supports a first axle (22R,22L), incorporates a hydraulic pump (230) driven by the prime mover (5), and…

A four-wheel drive vehicle comprises: a rear transaxle driving rear axles; a front transaxle driving front axles; and an engine disposed between the front and rear transaxles. A hydraulic motor for driving the front axles is provided in the front transaxle. A speed change transmission mechanism for…

A hydraulic pump 61 of a driving force distribution apparatus 1 for right and left axles 3, 4 includes a pump shaft 66, a swash plate 67 supported tiltably, swash plate tilting and holding mechanism unit 70 for tilting and holding the swash plate to one side or to the other side depending on the…

A hydraulic transaxle comprises a transaxle casing (2) for supporting left and right axles, a pair of hydraulic motors (3L,3R) disposed in the transaxle casing (2) so as to drive the respective left and right axles, hydraulic ports (31p,31q) provided in the transaxle casing (2) so as to fluidly…

A traveling vehicle, wherein a power transmission system for traveling straight forward, a power transmission system for turning, a power transmission system for PTO, and a power transmission system for driving a pump are disposed in a transmission part integrally with each other and a transmission…

A traveling transmission apparatus for a work vehicle is disclosed. The apparatus includes a stepless change-speed unit (30) receiving power from an engine (3), a gear transmission mechanism (13) receiving power from the stepless change-speed unit and disposed rearwardly of the engine, a rear-wheel…

A modular hydrostatic transaxle (8) includes an axle module (12) removably connected to a hydrostatic transmission module (10). The axle module includes a differential connected to a reduction gear train and disposed in an axle casing (18). A pair of axles (20, 22) are connected to the differential…

A frame structure of a vehicle includes a flywheel housing, an intermediate housing and a transmission case that are connected to each other along a longitudinal axis of the vehicle to constitute a vehicle frame with an inner space for accommodating a running-power transmission path for…

A hydraulic four-wheel driving apparatus is provided for a vehicle having a pair of left and right unsteerable wheels (5L and 5R) and a pair of left and right steerable wheels (4L and 4R). The hydraulic four-wheel driving apparatus comprises: a transmission casing (29) supporting the unsteerable…

A transmission for a wheel type working vehicle which makes it possible to reduce a size of a transmission mechanism for transmitting a mechanical driving force and a hydraulic driving force from the transmission to a front and rear wheel driving output shaft that is along a vehicle longitudinal…

A power train for vehicle between a driving power source (300) and a driving axle (310) comprising a transfer device (320) disposed between a main speed change device that is operatively connected to the driving power source and a differential gear device that transmits the drive power to the…

A port, provided at the surface of a housing, is linked to an inner fluid passage such that hydraulic fluid is supplied from the inner fluid passage to a hydraulic actuator arranged outside the housing. An axle, arranged in the housing, is driven by a hydraulic motor (40). A hydrostatic…

An axle driving apparatus for a vehicle, including a housing (1,2) containing a pair of coaxial axles (7), a differential gear unit (23) disposed in the housing (1,2) and interposed between the axles (7) so as to differentially connect the axles (7) with each other. A hydrostatic transmission is…

A hydrostatic transmission (34, 35) including a variable displacement pump (56) including an input shaft (40) and a pump cylinder barrel rotatably coupled to the input shaft, the pump cylinder barrel having a plurality of cylinder chambers arranged in parallel with other and distributed about the…

A hydrostatic transmission (20) including a fluid motor (24) and a variable displacement fluid pump (22) in fluid communication with the fluid motor and having a first and a second, much greater, fluid displacement rate. The pump is mounted on a block (32) having a cylindrical surface (129), a…

A hydraulically driven traveling vehicle comprising a pair of right and left driving axles (driving sprockets) differentially connected to each other by a differential mechanism, the input section of the differential mechanism having the output rotation of traveling HST 110 (110) transmitted…

In a transmission for a working vehicle, a PTO input shaft (31) is located with its rotational axis extending in a vehicle lengthwise direction substantially at a widthwise center of a transmission case (60) along a vehicle width direction. A running power input shaft (34) is located with its…

A self adjusting wet brake (100) positioned inside the housing (48, 54, 56) of a transaxle or transmission (30). The self adjusting brake assembly utilizes a brake pad (102) having a ramp surface (134) which is contacted by a cooperating surface (132) of a brake cam (104) for brake actuation. The…

A hydrostatic transmission (1) for vehicle interposed in a drive-power transmission path between a driving power source (300) and a driving axle (310) for non-stepwisely changing the speed of the vehicle includes an HST housing (40); a hydraulic pump unit (10) having a pump shaft (11) with first…

The drive system comprises a hydraulic motor with a stator (3) mounted so that it can rotate in a stationary housing (1) and a rotor (5) inside the stator. Each of these drives a wheel (4, 6). A reversing system (8) is mounted between the rotor and wheel or stator and wheel.

An integral-type transaxle apparatus (2) comprising a single housing (23) in which a pair of driving axles (40L, 40R), a differential mechanism (5) for differentially connecting both said driving axles to each other, a driving hydraulic stepless transmission (21) which fluidly connects a hydraulic…

An axle driving system with a hydrostatic transmission disposed in a housing (1,2), wherein the hydrostatic transmission comprises an input means (3) for receiving power from a prime mover, a hydraulic pump (16) driven by the input means (3), a hydraulic motor (17) driven by pressurized fluid from…