Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent
1999-05-26
2000-05-16
Kaufman, Joseph A.
Valves and valve actuation
Electrically actuated valve
Including solenoid
277438, 251214, F16K 3102, F16K 3144
Patent
active
060625368
ABSTRACT:
A gas valve has a solenoid actuator which is energized to open the valve an de-energized to permit spring closure of the valve. A seal element is secured on the armature of the solenoid armature. The seal element has a skirt portion which sealingly engages an armature sleeve to inhibit exhaust gas vapors from entering the chamber housing the solenoid coil and electronic sensing elements. The solenoid actuator has a pole piece defining one end of the chamber. A plurality of vent slots formed in the pole piece provide communication to atmosphere for the chamber to permit removal of any inadvertent intrusion by moisture or vapor.
REFERENCES:
patent: 2690939 (1954-10-01), Whaley
patent: 2755059 (1956-07-01), Auwarter
patent: 4121843 (1978-10-01), Halling
patent: 5192048 (1993-03-01), Wakeman
patent: 5924672 (1999-07-01), Crochet et al.
Bonderer David A.
General Motors Corporation
Kaufman Joseph A.
MacIntyre Timothy D.
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