HYDROSTATIC DRIVE SYSTEM WITH VARIABLE CHARGE PUMP

A hydraulic system (20) is provided having a reservoir (25) configured to hold a supply of fluid. The hydraulic system also has a variable displacement pump (36) configured to supply charge fluid and pilot control fluid to the hydraulic system. In addition, the hydraulic system has a closed-loop por...

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Bibliographische Detailangaben
Hauptverfasser:	MCROSTIE, NATHANAEL, G, GARNETT, STEPHEN, C, HARKEN, RYAN, R, HENDZEL, ADAM, MCINTYRE, DAVID, J, STEMLER, ERIC, D, GRICHNIK, MICHAEL, J, HARLOW, RANDALL, A, HAND, TIMOTHY, L
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic system (20) is provided having a reservoir (25) configured to hold a supply of fluid. The hydraulic system also has a variable displacement pump (36) configured to supply charge fluid and pilot control fluid to the hydraulic system. In addition, the hydraulic system has a closed-loop portion (32) configured to receive charge fluid from the variable displacement pump and drive a mechanism (22). The hydraulic system further has a pilot fluid supply portion (28) configured to direct pilot control fluid from the variable displacement pump to the closed-loop portion. L'invention concerne un système hydraulique (20) munie d'un réservoir (25) conçu pour contenir une alimentation fluidique. Le système hydraulique est également muni d'une pompe à cylindrée variable (36) conçue pour fournir un fluide de charge et un fluide de commande pilote au système hydraulique. De plus, le système hydraulique est pourvu d'une partie en boucle fermée (32) conçue pour recevoir du fluide de charge provenant de la pompe à cylindrée variable et entraîner un mécanisme (22). De plus, le système hydraulique comporte une partie d'alimentation fluidique pilote (28) conçue pour amener du fluide de commande pilote de la pompe à cylindrée variable à la partie en boucle fermée.