Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent
1989-05-11
1990-02-20
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Including solenoid
25112905, F16K 3106
Patent
active
049019740
ABSTRACT:
A canister purge solenoid valve is constructed and arranged to provide reduced operating noise and decreased armature wear as the armature reciprocates within a bore in response to solenoid energization and de-energization. The armature contains an elastomeric valve head that is biased normally closed against the valve seat. When the solenoid assembly is energized, the armature is retracted. The armature's momentum is initially absorbed by the elastomeric valve head making contact with the solenoid assembly at one end of the bore. Final absorption of the armature's momentum is shared by continuing contact of the valve head with the solenoid assembly and by an elastomeric limit stop that is disposed between the armature and the stator. In this way the elastomeric limit stop is not required to absorb the full momentum of the retracting armature.
REFERENCES:
patent: 3013768 (1961-12-01), La Mastra
patent: 4582294 (1986-04-01), Fargo
Cook John E.
Gillier William C.
Boller George L.
Rosenthal Arnold
Siemens-Bendix Automotive Electronics Limited
Wells Russel C.
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