Fuel pressure regulator

Details Fuel pressure regulator Fuel pressure regulator

1994-08-05

1995-07-04

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123467, 137510, F02M 3704

Patent

active

054290945

ABSTRACT:
In a fuel pressure regulator, the interior of a housing is divided into an air chamber and a fuel chamber by a diaphragm. A throttle portion is made up of a movable valve and a valve seat provided in the fuel chamber. The valve seat includes a fuel passage in communication with a fuel outflow pipe acting as an outflow passage for the fuel. The fuel passage is formed in such a shape that its cross-sectional area is gradually increased from the inlet side toward the outlet side.
A valve seat holder includes an end face diposite to the movable valve, which end face is disposed on the same plane as an end face of the valve seat on the inlet side. The valve seat holder also includes a shoulder portion provided with a smoothly curved surface extending from the end face opposite to the movable valve to an outer peripheral side surface of the valve seat holder.

REFERENCES:
patent: 4237924 (1980-12-01), Benjamin
patent: 4284039 (1981-08-01), Bellicardi
patent: 4741360 (1988-05-01), Affeldt
patent: 4756289 (1988-07-01), Rock
patent: 4903721 (1990-02-01), Maier
patent: 4936342 (1990-06-01), Kojima
patent: 4991556 (1991-02-01), Mahnke
patent: 5018500 (1991-05-01), Triolo
patent: 5076320 (1991-12-01), Robinson
patent: 5088463 (1992-02-01), Affeldt

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