On-demand hydraulic pump for a transmission and method of...
Operating speed change-over device
Outlet metering load-sensing circuit
Output control apparatus for a hydrostatic drive with delivery a
Overrun protecting control system for hydrostatic-mechanical tra
Overspeed control for a hydrostatic transmission
Overspeed control system for a hydro-mechanical drive system
Pilot operated hydraulic device
Piston pump assembly having load responsive controls
Power conservation means for variable displacement pump fluid su
Power control for a hydrostatic transmission
Power drive unit and control system therefor
Power steering system for vehicles
Power transmission
Power transmission
Power- and moment-regulating system for a plurality of...
Pressure actuated signal fluid control for load responsive syste
Pressure compensating valve spool positioned by difference in pr
Pressure flow compensating control circuit
Pressure responsive hydraulic control circuit