Fuel injection system for marine engines

Details Fuel injection system for marine engines Fuel injection system for marine engines

1993-12-10

1996-09-03

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

123541, 123497, F02M 3704

Patent

active

055514049

ABSTRACT:
A fuel injection system for engines and, in particular, internal combustion engines used on marine vessels, is disclosed including a fuel injection system having a supply port for receiving fuel at a rate in excess of the controlled rate, an injection port for discharging fuel into the engine at the controlled rate and a return port for conducting fuel in excess of that discharged from the injection port from the injection system. The fuel injection system also includes a pump having an inlet directly connected by a first conduit to a return port and an outlet directly connected by a second conduit to the supply port, a third conduit system for conducting fuel from the supply tank into the first conduit at a first location between the return port and the inlet, and a pressure regulating system for maintaining the pressure at the return port at a predetermined substantially constant super-atmospheric pressure.

REFERENCES:
patent: 3973536 (1976-08-01), Zelders
patent: 4072138 (1978-02-01), Hawkins
patent: 4235205 (1980-11-01), Fukui
patent: 4411239 (1983-10-01), Kelch
patent: 4503832 (1985-03-01), Pelfley
patent: 4872438 (1989-10-01), Ausiello
patent: 4920942 (1990-05-01), Fujimori
patent: 4926829 (1990-05-01), Tockey
patent: 5085193 (1992-02-01), Morikawa

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