Fluid handling – Systems – Valves with separate – correlated – actuators
Patent
1988-08-31
1989-08-29
Michalsky, Gerald A.
Fluid handling
Systems
Valves with separate, correlated, actuators
13759617, 303119, F15B 13044
Patent
active
048607940
ABSTRACT:
A dual solenoid valve assembly is provided. The assembly includes a casing joined to a housing having a pressure inlet and outlet, an exhaust port, a first fluid path connecting the inlet and the outlet, and a second fluid path intersecting the first fluid path and connected with the exhaust port. A first valve seat is in the first fluid path and a second valve seat is in the second fluid path. A first solenoid coil is mounted within the casing and a first magnetic solenoid stop is mounted within the first coil. A first solenoid plunger is slidably mounted within the first coil biased away from the first valve seat. A first tubular valve stem is fixably connected with the first plunger for sealably contacting the first valve seat. A second solenoid coil is mounted within the casing on a side of the first coil opposite the housing. A second magnetic stop is mounted within the second coil and a second solenoid plunger is biased away from the stop and is slidably mounted within the second coil. A second valve stem is fixably connected with the second plunger. The second valve stem has a head for sealably contacting the second valve seat.
REFERENCES:
patent: 3378031 (1968-04-01), Hatashita
patent: 4674536 (1987-06-01), Warrick
Colvin Jack A.
Parrott Richard M.
Shuey Lyle W.
General Motors Corporation
Helms Ernest E.
Michalsky Gerald A.
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