Hydrostatic transaxle

Details Hydrostatic transaxle Hydrostatic transaxle

2009-03-12

2010-12-14

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C060S427000

Reexamination Certificate

active

07849689

ABSTRACT:
A hydrostatic transaxle is provided for a vehicle having a first axle and a second axle. The hydrostatic transaxle comprises: a hydraulic pump; a first hydraulic motor drivingly connected to the first axle; a closed circuit fluidly connecting the hydraulic pump to the first hydraulic motor; and a fluid-supply switching device shifted between a supply position for supplying fluid from the closed fluid circuit to a second hydraulic motor, which is disposed on the outside of the hydraulic transaxle and is drivingly connected to the second axle, and a supply-stop position for stopping the supply of fluid from the closed fluid circuit to the second hydraulic motor. The first hydraulic motor is variable in displacement, and the hydrostatic transaxle further comprises a linkage system for associating the switching of the fluid-supply switching device between the supply position and the supply-stop position with an operation for changing the displacement of the first hydraulic motor.

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patent: 2002087086 (2002-03-01), None

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