Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1998-09-22
1999-11-09
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel injection system
137510, 123456, F02M 4100
Patent
active
059794097
ABSTRACT:
The returnless regulator includes a housing having a movable diaphragm defining a portion of a fuel regulating chamber. A normally open valve receives pressurized fuel from a fuel pump and lies in communication on its opposite side with the chamber. The diaphragm includes a projection engaging a valve element for moving the valve element away from its seat and enabling increased flow of fuel from the fuel pump through the valve into the chamber in response to fuel pressure in the chamber below a predetermined fuel regulation pressure and enabling the valve member for movement toward the valve seat, thereby enabling decreased flow of fuel from the fuel pump through the valve into the chamber in response to a fuel pressure in the chamber above the predetermined fuel regulation pressure. A retainer ring has recesses registering with openings in the lower housing part in communication with the chamber for flowing fuel to the fuel rail. The retainer ring engages an O-ring seal for sealing the regulator in a socket in the fuel rail. A filter is provided the inlet port for the regulator.
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Miller Carl S.
Siemens Automotive Corporation
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