Fuel injection system for an internal combustion engine

Details Fuel injection system for an internal combustion engine Fuel injection system for an internal combustion engine

1995-02-13

1996-06-25

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123506, F02M 3704

Patent

active

055290426

ABSTRACT:
In a fuel injection system for an internal combustion engine with solenoid valve controlled fuel injection nozzles receiving fuel from a common high pressure fuel supply line to which fuel is supplied via a high-pressure line including a check valve by a mechanically operated high pressure piston pump which has a piston disposed in a cylinder to which fuel is fed by a low pressure fuel supply line, a control line extends between the high-pressure line upstream of the check valve and the fuel supply line and includes a solenoid valve to permit fuel discharge from the pump back to the fuel supply line and a bypass line extends between the high-pressure line downstream of the check valve and the cylinder to provide communication with the fuel supply line through passages in the piston and the working space of the piston when the piston is in its inserted position and the solenoid is open to permit the release of pressurized fuel from the common high-pressure fuel supply line to the low pressure fuel supply line.

REFERENCES:
patent: 5058553 (1991-10-01), Kondo
patent: 5197439 (1993-03-01), Gronenberg
patent: 5230613 (1993-07-01), Hilbos
patent: 5277156 (1994-01-01), Osuka
patent: 5377636 (1995-01-01), Rix
patent: 5404855 (1995-04-01), Yen
ATZ/MTZ Sonde-heft Motor und Umwelt92, "Electronic controlled Fuel Injection System for Clean Diesel Engine" by Toshihiko Omori.

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