Fuel injection system

Details Fuel injection system Fuel injection system

1978-12-04

1980-10-14

Myhre, Charles J.

Internal-combustion engines

Charge forming device

Fuel injection system

123452, F02D 302, F02D 106

Patent

active

042275024

ABSTRACT:
A fuel injection system for a mixture-compressing externally ignited internal combustion engine includes a flow sensing member (3) arranged in an air intake duct (1), the member (3) moving in accordance with the quantity of air flowing through the duct so as to actuate a fuel metering valve (7) and to dispense a quantity of fuel to fuel injection nozzles (9) of the engine. The pressure difference in the metering valve (7) is maintained constant by means of a pressure sensitive valve (11) and a differential pressure control valve (20), each of which has two chambers separated by a diaphragm (12 and 21). The differential pressure control valve (20) is actuated on both sides by springs (34, 36 and 54) whose loading stress can be varied according to engine operating parameters. The loading stress of the springs is adjusted by devices for full-load fuel concentration and cold-starting fuel enrichment, and also a device responsive to air pressure changes.

REFERENCES:
patent: 2618222 (1952-11-01), Davies
patent: 2623509 (1952-12-01), Gold
patent: 2954021 (1960-09-01), Hurst
patent: 3919992 (1975-11-01), Eckart
patent: 3930481 (1976-01-01), Eckart
patent: 3951121 (1976-04-01), Passera
patent: 3994267 (1976-11-01), Eisele
patent: 4090487 (1978-05-01), Stumpp
patent: 4091832 (1978-05-01), Snyder

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