Axle driving apparatus

Details Axle driving apparatus Axle driving apparatus

2008-04-08

2008-04-08

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Servo-motor having externally operated control valve sets...

C060S488000

Reexamination Certificate

active

11521352

ABSTRACT:
An axle driving apparatus comprising a common housing in which a hydraulic pump and a hydraulic motor fluidly connected with each other and an axle driven by the hydraulic motor are disposed, At least one of the hydraulic pump and the hydraulic motor is variable in displacement and has a capacity changing device for changing its capacity. A hydraulic actuator is provided in the housing for controlling the capacity changing device. A control valve for hydraulically controlling the hydraulic actuator is provided in the housing. A center section for fluidly connecting the hydraulic pump and the hydraulic motor with each other is fixedly disposed in the housing and a driving part of the hydraulic actuator and the control valve are incorporated in the center section. A rotary member operatively connected to a human-operated traveling control member provided on a vehicle is rotatably supported by the housing. A link member is interposed between the rotary member and the control valve so as to alter the rotational movement of the rotary member to the reciprocal movement of the control valve. The driving part of the hydraulic actuator is connected to the link member for its feedback.

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