Fluid handling – Line condition change responsive valves – Bi-directional flow valves
Patent
1998-07-01
1999-12-28
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Bi-directional flow valves
137508, F16K 1726, F16K 3112
Patent
active
060067810
ABSTRACT:
A fuel pressure regulator wherein the diaphragm is eliminated from the crimp securing the first and second portions of the regulator housing together, thus minimizing the strain on the diaphragm thereby extending the life of the diaphragm and the pressure regulator. The diaphragm has an annular flange that is disposed within an annular area defined by an annular interior periphery of the second housing portion and an annular exterior periphery of an end plate retained between first and second housing portions of the regulator. The diaphragm is thereby axially and radially restrained between the first and second housing portions without being clamped between the first and second housing portions thereby increasing the life expectancy of the diaphragm. The fuel pressure regulator further utilizes a valve member having an annular sealing surface. This annular sealing surface is spring biased against the diaphragm and enables a higher unit pressure at the seat thereby improving the sealing characteristics between the upstream portion of the regulator and the downstream portion of the regulator. The fuel flow through the regulator is controlled by a control spring opposingly biasing the diaphragm against the sealing surface of the valve member.
REFERENCES:
patent: 3216608 (1965-11-01), McCormick
patent: 3439873 (1969-04-01), Relf
patent: 3441050 (1969-04-01), Sanchez
patent: 3612618 (1971-10-01), Swanson
patent: 5012784 (1991-05-01), Fehrenbach
patent: 5078167 (1992-01-01), Brandt et al.
patent: 5396918 (1995-03-01), Parker
patent: 5402817 (1995-04-01), Bueser
patent: 5584318 (1996-12-01), Brandt
patent: 5649561 (1997-07-01), Brandt
Brandt Timothy B.
Hudson Allen L.
Ferensic Denise L.
Kim Joanne Y.
Parr Manufacturing Inc.
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