Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1992-06-02
1993-06-22
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
123463, 251 85, 251 86, F16K 1704, G05D 1608
Patent
active
052209415
ABSTRACT:
A fuel pressure regulator with a flexible diaphragm defining in part first and second chambers in a housing and moving a ball valve in the first chamber to open and closed positions to regulate pressure of fuel discharged from the first chamber through an outlet having a seat on which the ball is received when the valve is closed. A cage carried by the diaphragm cooperates with a carrier member or disc fixed to the ball to provide a lost motion coupling between the diaphragm and the ball valve. This coupling permits movement within predetermined limits of the diaphragm generally axially, radially and pivotally relative to the ball while it remains on its seat and upon further generally axial movement of the diaphragm open and partially closes the ball valve to regulate and maintain substantially constant the pressure of fuel discharged from the chamber over substantially the full range of the rate at which the fuel is discharged. Preferably, to further improve regulation, a restricted orifice is disposed in the outlet downstream of the valve seat.
REFERENCES:
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patent: 4327767 (1982-05-01), Fehrenbach
patent: 4431026 (1984-02-01), Fehrenbach
patent: 4577606 (1986-03-01), Bohringer
patent: 4627463 (1986-12-01), Johnstone
patent: 4741360 (1988-05-01), Affeldt et al.
patent: 4790343 (1988-12-01), Mochizuki
Hepperle Stephen M.
Walbro Corporation
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