Fuel supply apparatus and method for internal combustion engines

Details Fuel supply apparatus and method for internal combustion engines Fuel supply apparatus and method for internal combustion engines

1984-06-11

1986-04-01

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123439, 123494, P02M 718

Patent

active

045790973

ABSTRACT:
A first temperature sensor senses the temperature of intake air supplied to an internal combustion engine before the intake air is mixed with fuel supplied thereto. A second temperature sensor senses the temperature of the mixture of the intake air and fuel within the intake air passage. A control unit controls the fuel injection quantity in accordance with the difference between the sensed temperatures, thereby causing the actual air-fuel ratio to coincide with a desired air-fuel ratio. The desired air-fuel ratio is adjusted in accordance with the throttling effect of a throttle valve in the intake air passage and with engine speed.

REFERENCES:
patent: 2943614 (1960-07-01), Bosch et al.
patent: 3747577 (1973-07-01), Mauch et al.
patent: 4050428 (1977-09-01), Masaki
patent: 4290401 (1981-09-01), Pederson
patent: 4349877 (1982-09-01), Oyama et al.
patent: 4369749 (1983-01-01), Suyi
patent: 4442818 (1984-04-01), Kashiwaya et al.

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