Dual-path single-pump hydrostatic drive for mower

A turf care machine includes a base mounted on a plurality of wheels, a support structure affixed to and extending from the base for supporting a turf machine operator interface, and a hydraulic control system for regulating the speed and direction of the mower. The hydraulic system includes: an eng...

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Bibliographische Detailangaben
1. Verfasser:	BEDNAR RICHARD D
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FISHING FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FORESTRY GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HARVESTING HEATING HUMAN NECESSITIES HUNTING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING MOWING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL TRAPPING WEAPONS
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Beschreibung
Zusammenfassung:	A turf care machine includes a base mounted on a plurality of wheels, a support structure affixed to and extending from the base for supporting a turf machine operator interface, and a hydraulic control system for regulating the speed and direction of the mower. The hydraulic system includes: an engine with a drive shaft; a single hydraulic pump driven by the engine; a first valve set having an inlet connected to the pump outlet; a first hydraulic wheel motor connected to the first valve set; a second valve set connected to the first valve set and to a second hydraulic wheel motor. This drive system has the advantage of using only one pump for driving both drive wheels in a seemingly independent dual path mode of operation, thereby minimizing cost and the number of fluid linkages and parts in such a system.