Fuel controller of variable choke carburetor

Details Fuel controller of variable choke carburetor Fuel controller of variable choke carburetor

1984-10-30

1985-10-08

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123493, 123585, 123463, 261DIG56, 261DIG50, F02M 2304, F02N 700, F02B 7510

Patent

active

045453500

ABSTRACT:
A fuel controller has a fuel cut-off device in the form of a solenoid valve connected to an intermediate part of an air bleed commmunicating with the well of a variable choke carburetor. The fuel controller also employs a vacuum changeover valve which communicates with the engine intake manifold through a passage way and is connected to the air bleed between the solenoid valve and an air jet upstream of the solenoid valve. The solenoid valve is opened when the engine is decelerating in order to allow the well and the air bleed to communicate with each other, thereby controlling the air-fuel ratio. When the key switch is IC, the air bleed and the vacuum changeover valve communicate with the well, thereby cutting the supply of fuel to the mixing chamber.

REFERENCES:
patent: 4083338 (1978-04-01), Berthing et al.
patent: 4314535 (1982-02-01), Takeuchi et al.
patent: 4369749 (1983-01-01), Sugi

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