Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1982-12-01
1984-10-09
Lall, Parshotam S.
Internal-combustion engines
Charge forming device
Fuel injection system
123339, 73118, F02M 5100
Patent
active
044755180
ABSTRACT:
In a fuel injection apparatus for internal combustion engine wherein a hot wire sensor is provided in an air bypass communicating the upstream side of a Venturi portion formed in an air-intake path with the Venturi portion, the amount of air flowing in the air bypass is controlled by an air-scaling valve driven by an electromagnetic device so that the output of the hot wire sensor converges to a set level, fuel is scaled by a fuel-scaling valve driven by the electromagnetic device in accordance with the change of the amount of air supplied to the engine, and the scaled fuel is continuously injected into the air-intake path, the set level is determined to a value which is smaller than a maximum output value of the hot wire sensor occurring when the air-scaling valve is fully opened during idling operation of the engine, thereby ensuring that the output of the hot wire sensor can converge to the set level during the idling operation.
REFERENCES:
patent: 4264961 (1981-04-01), Nishimura et al.
patent: 4366704 (1983-01-01), Sato et al.
patent: 4385602 (1983-05-01), Itou et al.
patent: 4400974 (1983-08-01), Nishimura et al.
patent: 4404846 (1983-09-01), Yamauchi et al.
patent: 4407248 (1983-10-01), Takeuchi et al.
patent: 4417558 (1983-11-01), Osuga et al.
Kashiwaya Mineo
Tanabe Yoshiyuki
Tsuruta Hisato
Yamada Kinsaku
Hitachi , Ltd.
Lall Parshotam S.
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