Valves and valve actuation – With material guide or restrictor – Baffle or zigzag flow restrictor
Patent
1996-04-28
1997-07-29
Lee, Kevin
Valves and valve actuation
With material guide or restrictor
Baffle or zigzag flow restrictor
F16K 4714
Patent
active
056515294
ABSTRACT:
A noise and shock reducing assembly are provided. When used as part of a k valve assembly, the present invention includes a disk and a valve plate with a valve orifice passing therethrough. A perforated bellows is disposed about the valve orifice between the disk and the valve plate. An actuator moves the disk linearly with respect to the valve plate in one of a first direction and a second direction to cause compression or expansion of the bellows. The restrictive flow path presented by a combination of the folded side walls of the bellows and the perforations therein provide for a gradual increase or decrease in downstream pressure and flow during the opening or closing of the valve.
REFERENCES:
patent: 3920044 (1975-11-01), Gruner
patent: 4335744 (1982-06-01), Bey
patent: 4549718 (1985-10-01), Seger
Kasischke James M.
Lall Prithvi C.
Lee Kevin
McGowan Michael J.
The United States of America as represented by the Secretary of
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