Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2008-07-08
2008-07-08
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
Reexamination Certificate
active
07395814
ABSTRACT:
A fuel system for a marine propulsion device controls the pressure of liquid fuel within a fuel rail by altering the pump speed of a fuel pump. The fuel pressure in the rail is measured by a pressure transducer which provides an output signal to a microprocessor that allows the microprocessor to select an operating speed for the fuel pump that conforms to a desired fuel pressure in the rail. By decreasing or increasing the operating speed of the positive displacement fuel pump as a function of the measured pressure in the rail, the microprocessor can accurately regulate the fuel pressure.
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Doepke Luke A.
Kollmann Troy J.
Torgerud Michael A.
Brunswick Corporation
Lanyi William D.
Moulis Thomas N
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