Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1997-06-05
1998-11-10
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel injection system
123508, F02M 3704
Patent
active
058328980
ABSTRACT:
A fuel injection system for an engine having exhaust valve train drive means includes a compression spring connected to the exhaust valve train drive member for compression and expansion movement with the drive member. A diaphragm fuel pump includes a pumping chamber having a pump diaphragm driven by a compression spring. The pumping chamber includes a fuel inlet passage having a check valve therein. An injector chamber, in fuel flow communication with the pumping chamber, receives fuel from the pumping chamber during compression and expansion cycling of the compression spring. The injector chamber includes an accumulator and connects with a fuel injector. A check valve is disposed between the chambers prevents fuel flow back into the pumping chamber. A pressure sensor is mounted for sensing fuel pressure in the injector chamber and operates to communicate the fuel pressure value in the injector chamber. An engine controller receives the fuel pressure value of the fuel pressure in the injector chamber and controls fuel metering based upon the reduction in fuel pressure in the injector chamber during engine fuel injection. A timing member is in communication with the engine controller for initiating fuel injection.
REFERENCES:
patent: 2055578 (1936-09-01), Hurst
patent: 4100904 (1978-07-01), Eckert et al.
patent: 4419977 (1983-12-01), Hillebrand
patent: 4615323 (1986-10-01), LeBlanc et al.
patent: 4622942 (1986-11-01), Nozaki et al.
patent: 4718384 (1988-01-01), Takahashi
patent: 5161496 (1992-11-01), Matsushima et al.
patent: 5176120 (1993-01-01), Takahashi
patent: 5257606 (1993-11-01), Willman et al.
patent: 5323750 (1994-06-01), Rotter
patent: 5477833 (1995-12-01), Leighton
patent: 5577479 (1996-11-01), Popp
patent: 5771865 (1998-06-01), Ishida
Moulis Thomas N.
Siemens Automotive Corporation
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