Fuel rail mounted fuel pressure regulator

Details Fuel rail mounted fuel pressure regulator Fuel rail mounted fuel pressure regulator

1990-10-19

1991-12-31

Hepperle, Stephen M.

Fluid handling

Removable valve head and seat unit

123463, 137510, G05D 1608

Patent

active

050763202

ABSTRACT:
A fuel pressure regulator valve comprises a housing constructed from plural metal stampings and containing a diaphragm assembly which divides the housing into a control chamber and a fuel chamber. The housing is shaped to contain integral grooves for O-ring seals so that the O-rings stay on the valve when it is removed from its mounting socket in a fuel rail. Two of the stampings partially define the fuel chamber and are joined by means of a crimp formed in one. The other of the two has a hardness greater than that of the one to facilitate its press-fit engagement with the valve seat tube. The crimp is below the upper O-ring seal so that the crimp provides an entirely satisfactory joint. Each O-ring is located within its groove with the aid of a spacer also disposed in the groove.

REFERENCES:
patent: 2700983 (1955-02-01), Bryant
patent: 4231347 (1980-11-01), Ohumi et al.
patent: 4741315 (1988-05-01), Fehrenbach et al.
patent: 4825835 (1989-05-01), Deweerdt
patent: 4883088 (1989-11-01), Herbst

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