Hydrostatic transmission control system

An improvement in a control system, including a brake device, for a vehicle having a hydrostatic transmission which includes a hydrostatic pump and a hydrostatic motor. The hydraulic control circuit includes a control pump, a high pressure conduit, a low pressure conduit, differential pressure regul...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PATTON, JON R
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An improvement in a control system, including a brake device, for a vehicle having a hydrostatic transmission which includes a hydrostatic pump and a hydrostatic motor. The hydraulic control circuit includes a control pump, a high pressure conduit, a low pressure conduit, differential pressure regulator valve means and a directional control valve means interposed in the high and low pressure conduits and a fixed orifice means interposed in the low pressure conduit upstream from the differential pressure regulator valve. The improvement takes the form of an adjustable orifice means interposed in a branch conduit, between the high and low pressure control conduits downstream from the fixed orifice means, with the adjustable orifice means permitting the adjustment of the pressure differential between the high and low pressure control conduits.