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Home Generators or Motors Fuel-pressure-regulator

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 Fuel pressure regulator

Details
Inventors: Maier, Gerhard A.;
Assignee: Outboard Marine Corporation (Waukegan, IL)
Primary Examiner: Schwadron; Martin P.
Assistant Examiner:
Attorney, Agent or Firm: Michael, Best & Friedrich

A fuel pressure regulator comprising a housing, a movable diaphragm mounted within the housing, the diaphragm including a first side communicating with the atmosphere and an opposite second side having first and second portions, a fuel chamber partially defined by the first portion of the second side of the diaphragm, a constant pressure chamber partially defined by the second portion of the second side of the diaphragm, a fuel inlet communicating with the fuel chamber, and a fuel outlet having an inlet end located adjacent the diaphragm within the fuel chamber and being selectively communicable with the fuel chamber in response to movement of the diaphragm relative to the inlet end.

DETAILED DESCRIPTION We claim: 1.
A fuel pressure regulator comprising a housing, a movable diaphragm mounted within said housing, said diaphragm including a first side communicating with the atmosphere and an opposite second side having first and second portions, a fuel chamber partially defined by said first portion of said second side of said diaphragm, a constant pressure chamber closed to the atmosphere partially defined by said second portion of said second side of said diaphragm, fuel inlet means communicating with said fuel chamber, and fuel outlet means including an outlet conduit having an inlet end located adjacent said diaphragm within said fuel chamber and being selectively communicable with said fuel chamber in response to movement of said diaphragm relative to said inlet end.
2.
A pressure regulator as set forth in claim 1 and further comprising interengageable valve means on said inlet end of said outlet conduit and on said second side of said diaphragm for closing said outlet conduit when said diaphragm is biased toward said outlet conduit, and for opening said outlet conduit to said fuel chamber when said diaphragm is biased away fom said outlet conduit.
3.
A pressure regulator as set forth in claim 2 and further comprising means for varying the pressure of fuel in said fuel chamber independently of atmospheric pressure.
4.
A pressure regulator as set forth in claim 3 wherein said fuel pressure varying means includes means for applying a force to said diaphragm so as to bias said diaphragm away from said outlet conduit.
5.
A pressure regulator as set forth in claim 4 wherein said means for applying a force to said diaphragm includes a spring.
6.
A pressure regulator as set forth in claim 4 and further comprising means for varying the value of said force applied to said diaphragm.
7.
A pressure regulator as set forth in claim 3 wherein said fuel pressure varying means includes means for applying a force to said diaphragm so as to bias said diaphragm toward said outlet conduit


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