Work machine

To provide a work machine which, in a configuration provided with a closed-circuit pump and an open-circuit pump, is capable of stabilizing respective pump operations of the closed-circuit pump and the open-circuit pump and of improving the mountability of the closed-circuit pump and the open-circui...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Takahashi, Hiromasa, Hiraku, Kenji
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	To provide a work machine which, in a configuration provided with a closed-circuit pump and an open-circuit pump, is capable of stabilizing respective pump operations of the closed-circuit pump and the open-circuit pump and of improving the mountability of the closed-circuit pump and the open-circuit pump. The present invention is provided with a closed circuit in which a closed-circuit pump and a boom cylinder are connected annularly, and an open circuit which has an open-circuit pump for making hydraulic fluid flow in from a reservoir and flow out and a connection passage capable of introducing hydraulic fluid into the closed circuit, wherein the closed-circuit pump is installed above the open-circuit pump.