SOLENOID WATER SUPPLY VALVE

• Main Author: NOZAKI SATORU
• Format: Patent
• Language: English
• Published: 10.12.2009
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

PROBLEM TO BE SOLVED: To provide a solenoid water supply valve capable of improving operation responsiveness and preventing water stop failure caused by clogging of foreign matters. SOLUTION: The solenoid water supply valve includes an outflow chamber 6 communicating with an outflow port, an inflow chamber 7 communicating with an inflow port and provided on the outer periphery of the outflow chamber 6, a valve element (diaphragm valve) 20 for allowing or cutting off communication between the inflow chamber 7 and the outflow chamber 6, a back pressure chamber 30 provided on the back surface side of the valve element 20, a pilot hole 40 arranged on the opposite side to the inflow port with the outflow chamber 6 interposed therebetween so as to make the back pressure chamber 30 and the outflow chamber 6 communicate with each other, a solenoid valve 45 for opening/closing the pilot hole 40, and a back pressure hole 35 provided in the valve element 20 so as to make the inflow chamber 7 and the back pressure chamber 30 communicate with each other on the side of the inflow port. A wall section 38 is provided on the inflow port side at the inlet of the back pressure hole 35 on the side of the inflow chamber 7. COPYRIGHT: (C)2010,JPO&INPIT