TWO STAGE TYPE ELECTRIC HYDRAULIC PRESSURE CONTROL VALVE

PROBLEM TO BE SOLVED: To perform control so as to adjust the engagement of a spring work pressure releasing type brake when a power supply to a solenoid is suddenly stopped by connecting a shut-off valve mechanism to an accumulation chamber and a solenoid control type pilot stage to the shut-off val...

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Bibliographische Detailangaben
1. Verfasser:	SUTEIIBUN SHII BUREI
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BLASTING BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 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 PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To perform control so as to adjust the engagement of a spring work pressure releasing type brake when a power supply to a solenoid is suddenly stopped by connecting a shut-off valve mechanism to an accumulation chamber and a solenoid control type pilot stage to the shut-off valve mechanism. SOLUTION: A shut-off valve mechanism 19 arranged between passages 24 and 37 is connected to an accumulation chamber 34 and when a fluid flowing from the passage 37 through the passage 24 exceeds a specified flow rate, the shut-off valve mechanism 19 blocks the flowing of the fluid from the accumulation chamber 34 to a solenoid control type pilot stage 16 connected to the shut- off valve mechanism 19 by a flow control means 39. When the flow control means 39 is in a flow block mode, a fluid pressure in the accumulation chamber 34 is reduced by a pressure reducing means 41. Further, the flowing of the fluid from the accumulation chamber 34 to the passage 24 is controlled by a flow diaphragm means 42. Thus, when a power supply to the solenoid is stopped, control is performed so as to adjust the engagement of a brake.