ENERGY-SAVING HIGH-EFFICIENCY LOW-NOISE PRESS HYDRAULIC SYSTEM

An energy-saving high-efﬁciency low-noise press hydraulic system, including an oil tank, a ﬁrst and second oil-absorbing oil-ﬁltering device, a ﬁrst and second directly operated type relief valve, a ﬁrst and second pressure sensor, a 5 three-position four-way electro-hydraulic directional valve, a ﬁ...

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Bibliographische Detailangaben
Hauptverfasser:	FENG LIU, ZHENTAO QI, ZHIBO LI, BINGYAN ZOU, SHOUJUN WANG, ZE LIU, GUODONG LIU
Format:	Patent
Sprache:	eng
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 PRESSES PRESSES IN GENERAL SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	An energy-saving high-efﬁciency low-noise press hydraulic system, including an oil tank, a ﬁrst and second oil-absorbing oil-ﬁltering device, a ﬁrst and second directly operated type relief valve, a ﬁrst and second pressure sensor, a 5 three-position four-way electro-hydraulic directional valve, a ﬁrst, second and third check valve, a ﬁrst and second two-position two-way electromagnetic ball valve, an externally controlled one-way balance valve, a ﬁrst and second oriﬁce, a movable plate driven long-stroke hydraulic cylinder, a movable plate driven hydraulic cylinder, a ﬁrst and second pressure gauge, an internal gear pump, an 10 alternating-current servo motor and a ﬁrst and second coupler, a three-phase asynchronous motor, a constant-pressure variable piston pump, an electromagnetic relief valve, a three-position four-way electromagnetic directional valve, a two/one-way throttle valve, a bidirectional hydraulic lock, and a short-stroke pressurizing hydraulic cylinder. 15 Fig.1