HYDRAULIC SYSTEM FOR A VEHICLE

A hydraulic system (10) for a vehicle comprises a transmission lube circuit (12), a main pump (20), and a variable displacement charge pump (24) for supplying charge fluid to the main pump (20). The variable displacement charge pump (24) has a charge pump outlet (54) and a pressure responsive displa...

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Bibliographische Detailangaben
Hauptverfasser:	KNIGHT, JESSE R, NYSTROM, DWAYNE A, HOLLAND, MICHAEL A
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic system (10) for a vehicle comprises a transmission lube circuit (12), a main pump (20), and a variable displacement charge pump (24) for supplying charge fluid to the main pump (20). The variable displacement charge pump (24) has a charge pump outlet (54) and a pressure responsive displacement control unit (46). A charge fluid line (36) communicates the charge pump outlet (54) with an inlet (34) of the main pump (20). A pressure sensing line (48) communicates the charge fluid line (36) with the displacement control unit (46). A lube line (66) communicates the charge pump outlet (54) with the transmission lube circuit (12). A fluid restriction (70) is formed in the lube line (66).