Rotary control valve for a hydrostatic transmission

Details Rotary control valve for a hydrostatic transmission Rotary control valve for a hydrostatic transmission

2007-07-31

2009-11-10

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

Valve means reverses flow from pump to reversible rotary motor

C060S487000

Reexamination Certificate

active

07614227

ABSTRACT:
A rotary control valve for a vehicle hydrostatic transmission includes a hydraulic pump and a hydraulic motor. The valve is configured to control both a direction and a speed of the hydrostatic transmission. The rotary control valve includes a rotary valve plate configured to oscillate through a range of less than 180 degrees independently of the pump and the motor.

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