Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1979-07-06
1981-06-02
Schwadron, Martin P.
Fluid handling
Systems
Flow path with serial valves and/or closures
251127, 13761419, F16K 4704
Patent
active
042705711
ABSTRACT:
A throttle valve for high pressure letdown includes an elongated valve housing with pressure reducing valve section which contains a plurality of conical baffles spaced therein along the length thereof stretching between a high pressure fluid supply port entering said valve housing through housing wall perpendicularly and an axially disposed fluid exhaust port for low pressure discharge of the fluid subjected to torture pathway accompanied by multitude flow reversals with only limited fluid expansion and contraction processes induced thereto forcing fluid expansion when it passes large diameter edge of one baffle first before it is forced to contract immediately thereafter when passing small diameter orifice of another baffle spaced a short distance away until all baffles along the way are crossed extracting huge energy amount from high pressure fluid to result in a low pressure fluid exhaust from the valve, including means for flow and pressure drop modulation by varying position of baffles relative to net free area allowable for fluid flow through the valve.
REFERENCES:
patent: 1896833 (1933-02-01), Bramsen et al.
patent: 2073553 (1937-03-01), Dienst
patent: 3152617 (1964-10-01), Justus et al.
patent: 3542332 (1970-11-01), Chevalier
patent: 3880399 (1975-04-01), Luthe
patent: 4078582 (1978-03-01), Hetz
patent: 4162784 (1979-07-01), Legille et al.
Chambers A. Michael
Pauliukonis Richard S.
Schwadron Martin P.
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