Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1978-12-04
1980-09-02
Lazarus, Ira S.
Internal-combustion engines
Charge forming device
Fuel injection system
123464, 123505, 123366, 261 50A, F02M 3900, F01D 106
Patent
active
042201292
ABSTRACT:
The 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 dispensing valve (7) and to dispense a quantity of fuel to fuel injection nozzles (9) of the engine. The pressure difference in the dispensing valve (7) is maintained constant by means of a pressure sensitive valve (11) and a differential pressure control valve (20). The differential pressure control valve has two chambers (22 and 23) separated from each other by a rigid wall (21) and include diaphragms (24 and 25) arranged parallel to each other. The diaphragms are maintained at a fixed spacing from each other by a bolt (33) and both diaphragms are actuated by springs (37) and (42) which urge the diaphragms against each other. The loading stresses of the springs can be varied according to engine operating parameters and can be adjusted by devices for full load fuel concentration and cold-starting fuel concentration, and also a device responsive to air pressure chambers.
REFERENCES:
patent: 2618222 (1952-11-01), Davies et al.
patent: 3894523 (1975-07-01), Stumpp
patent: 3951121 (1976-04-01), Passera et al.
patent: 3994267 (1976-11-01), Eisele et al.
patent: 4090487 (1978-05-01), Stumpp et al.
Bauder Armin
Steinwart Johannes
Audi NSU Auto Union Aktiengesellschaft
Lazarus Ira S.
Moy Magdalen
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