HYDRAULIC DRIVE SYSTEM AND GATE VALVE

The present invention relates to a hydraulic drive system, which includes a vacuum actuator which expands and contracts to be able to pressurize an object in a chamber of a vacuum atmosphere, a hydraulic drive unit, and a drive unit. The vacuum actuator includes an extension rod which can extend tow...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	INOUE HIDEAKI, WADA SHINICHI, SUZUKI MIKIYA, TSURU SHUNSUKE, TERUI TAKAAKI, ISHIDA TOMOYA, TOKUHIRA SHINNOSUKE, WADE TAKUYA, SAKODA SEIYA, ENDO JIROU
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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