Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent
1995-01-25
1996-09-10
Rivell, John
Valves and valve actuation
Electrically actuated valve
Including solenoid
251 64, 25112919, 13762565, F16K 3102
Patent
active
055538290
ABSTRACT:
A noise dampening feature is provided to a valve by incorporating an annular resilient member in association with the plunger of a solenoid valve. The annular resilient member comprises an annular portion and a series of protrusions extending axially away from the annular portion. A plunger of a solenoid valve is adapted to have an annular groove into which the annular portion of the resilient member is received. By preventing the direct physical contact of the upper surface of the plunger with the lower surface of a stop member, the resilient member prevents the clicking noise that is undesirable in certain circumstances. In order to avoid restricting the normal flow of fluid through the valve, the resilient member is provided with a plurality of protrusions and recesses, or interstitial spaces, that allows fluid to flow radially inward from the region of the fluted sides of the plunger toward the central location of a secondary port formed through a stop member.
REFERENCES:
patent: 2868494 (1959-01-01), Kearns, Jr. et al.
patent: 3324889 (1967-06-01), Batts
patent: 3446473 (1969-05-01), Barker
patent: 4523739 (1985-06-01), Johansen et al.
patent: 4531708 (1985-07-01), Livet
patent: 5127627 (1992-07-01), Domke
patent: 5374029 (1994-12-01), Bailey
Honeywell Inc.
Lanyi William D.
Rivell John
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