Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1994-12-23
1997-04-22
Walton, George L.
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
251 45, 251 65, 25112904, 25112909, 2511291, 335302, F16K 3108
Patent
active
056223510
ABSTRACT:
Disclosed is a water-supply valve of a washing machine in which the consumption of electric power can be minimized in opening and closing the valve to supply water into and block off the water supply into a washing tub of the washing machine. In the water-supply valve, an actuator rod is elevated against downward biasing force of a spring by a magnetic force of the first solenoid generated by applying an electric current thereto, and then is retained at its uppermost position by the attractive force of the permanent magnet. And, the actuator rod starts to be lowered by a magnetic force of the second solenoid generated by applying an electric current thereto, and is retained at its lowermost position by the downward biasing force of the spring.
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Daewoo Electronics Co. Ltd.
Walton George L.
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