Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1989-12-27
1992-05-19
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
123467, 13750541, 137901, F02M 3900
Patent
active
051138310
ABSTRACT:
A fuel pressure regulator (10) for automobiles and the like comprises a body lower portion (11), an upper cover (12) and a resilient diaphragm (66) therebetween. The resilient diaphragm (66) separates an upper chamber (61) from a fuel outlet chamber (21). A passageway (22) extends between the fuel outlet chamber and a fuel inlet chamber (14). A spherical ball valve (29) and a cylindrical valve seat (26) are positioned at one end of the passageway (22). A removable plug (32) carries guide legs (33) for guiding the ball valve (29) and further carries a biasing spring (31) for biasing the ball valve (29) into a closed seating position. A piston (51) is positioned below the resilient diaphragm in the fuel outlet chamber (21) and has depending therefrom an elongated stem (52) which is received in a stem guide (53), with the stem guide having a tapered portion (54) extending into the passageway (22).
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