PROCESS AND APPARATUS FOR THE DEGASIFICATION OF COMPRESSED FLUID IN A HYDRAULIC SYSTEM

A method and apparatus are disclosed for degassing the pressure fluid of a hydraulic system, in which a vacuum is maintained in the free space above the pressure fluid in the fluid reservoir of the hydraulic system by a vacuum pump. The vacuum pump has a selective pumping action, by virtue of which...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BURGER, HERBERT
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A method and apparatus are disclosed for degassing the pressure fluid of a hydraulic system, in which a vacuum is maintained in the free space above the pressure fluid in the fluid reservoir of the hydraulic system by a vacuum pump. The vacuum pump has a selective pumping action, by virtue of which permanent gases present in the free space are withdrawn but vapors of the pressure fluid present in the free space are not withdrawn. Pressure fluid entering the reservoir from the hydraulic system is passed over a degassing surface to promote separation of the permanent gases in the pressure fluid from the fluid. A compensating line is provided between the vacuum pump and the reservoir for returning to the reservoir the nominal amounts of pressure fluid withdrawn from the reservoir by the pump. Valves provided in all fluid lines leading to and from the reservoir maintain the vacuum in the reservoir during system shut-downs.