Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1993-02-01
1994-04-19
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
251 64, 251 80, 251337, G05D 1602
Patent
active
053037340
ABSTRACT:
A pressure regulator includes a housing having a chamber that receives a pressure responsive member. The pressure responsive member includes an internal charge that allows a movable portion of the regulator to react in response to pressure differentials. A preferred embodiment of the regulator includes a dampening member defined by an O-ring that exerts a drag on the pressure responsive member to address oscillations associated with high flow rates. The dampening force can be varied according to the subject invention. Moreover, a normally planar poppet retaining member reduces manufacturing costs of the regulator and allows for a highly polished surface to address concerns with impurities. A biasing arrangement is also incorporated into the regulator to assure that the poppet seals against the valve seat if the internal pressure charge of the regulator is lost.
REFERENCES:
patent: 2573522 (1951-10-01), Watt
patent: 2827077 (1958-03-01), Mitchell
patent: 4203554 (1980-05-01), Zimmer et al.
patent: 4848726 (1989-07-01), Hary
patent: 4915127 (1990-04-01), Worley
patent: 5033505 (1991-07-01), Eidsmore
patent: 5062449 (1991-11-01), Woollums et al.
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