Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1981-08-05
1983-10-18
Lazarus, Ira S.
Internal-combustion engines
Charge forming device
Fuel injection system
261 50A, 261 44C, F02M 700
Patent
active
044099444
ABSTRACT:
A fuel supply system for a mixture-compressing combustion engine includes a main air channel containing a throttle valve with a suction pipe connected to the downstream end of the main air channel and extending to the inlet valves for the engine. An air quantity measuring valve is located in the main air channel upstream of the throttle valve. A carrier-air channel branches off from the main air channel between the air quantity measuring valve and the throttle valve. Spaced from the main air channel is a fuel metering nozzle which opens into the carrier-air channel. A proportioning valve is located in the fuel metering nozzle and is adjustable by the air quantity measuring valve. A differential pressure valve is connected to the carrier air channel and contains a membrane acted upon on one side by an adjustable force member and the air pressure in the carrier-air channel adjacent the fuel metering nozzle and on the other side by the air pressure in the carrier air channel upstream from the fuel metering nozzle. Accordingly, the fuel metering nozzle is independent of fluctuations in the power generating the flow of carrier air.
REFERENCES:
patent: 3198498 (1965-08-01), Mennesson
patent: 3259378 (1966-07-01), Mennesson
patent: 3286998 (1966-11-01), Mennesson
patent: 3288445 (1966-11-01), Mennesson
patent: 4246879 (1981-01-01), Fiala
patent: 4290399 (1981-09-01), Takada et al.
patent: 4307692 (1981-12-01), Fiala
Lazarus Ira S.
Moy Magdalen
Pierburg GmbH & Co. KG
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