Internal-combustion engines – Charge forming device – With fuel pump
Patent
1988-09-22
1989-10-03
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
With fuel pump
123503, 123357, F02M 3900
Patent
active
048709395
ABSTRACT:
In a fuel injection system having a distribution-type fuel injection pump, fuel is supplied successively to cylinders of an engine from a pressurizing chamber of the pump. The pressurizing chamber communicates with a low-pressure chamber through a relief passageway opened and closed by an electromagnetic valve. During a stroke in which volume of the pressurizing chamber is reduced by each forward stroke of a plunger, opening and closing of the valve are controlled, to control starting timing and/or termination timing of fuel injection to the cylinders. A delay occurs in the starting timing and/or the termination timing with respect to drive pulses supplied to the valve, due to an operation delay of the valve. A plurality of memory sections are provided for storing therein delay times for the respective cylinders. A starting point or a termination point of the drive pulse is advanced correspondingly to the delay times stored respectively in the memory sections, at fuel injections with respect to the respective cylinders.
REFERENCES:
patent: 4506545 (1985-03-01), Yamada
patent: 4541394 (1985-09-01), Schechter
patent: 4603669 (1986-08-01), Takemoto
patent: 4714068 (1987-12-01), Nagase
patent: 4718391 (1988-01-01), Rembold
patent: 4727835 (1988-03-01), Kobayashi
patent: 4766864 (1988-08-01), Ban
Ishikawa Masataka
Takagi Nobukazu
Diesel Kiki Co. Ltd.
Miller Carl Stuart
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