System for controlling the carburetor of an internal combustion

Details System for controlling the carburetor of an internal combustion System for controlling the carburetor of an internal combustion

1990-07-19

1991-07-16

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Engine speed reduction by overriching the combustible mixture

123361, 123438, 123403, F02D 4102, F02M 704, F02B 6302

Patent

active

050315935

ABSTRACT:
A control system for the carburetor of an internal combustion engine wherein the carburetor has a choke valve disposed at the inlet of the carburetor induction tube and the choke valve is operated automatically by an actuator. The actuator for the control includes a pulse-width modulator in which the pulse width or the degree of modulation is influenced by a family of characteristics stored in a programmable memory, the memory applying signals to the pulse-width modulator for pre-specified air-fuel mixtures in accordance with engine speed.

REFERENCES:
patent: 3807371 (1974-04-01), Nutten et al.
patent: 4125095 (1978-11-01), Wilson
patent: 4462357 (1984-07-01), Lockhart
patent: 4463723 (1984-08-01), Tansuwan
patent: 4524742 (1985-06-01), Bonfiglioli et al.
patent: 4675589 (1987-06-01), Sausner et al.
patent: 4763264 (1988-08-01), Okuno et al.
patent: 4768478 (1988-09-01), Martel
patent: 4831985 (1989-05-01), Mabee et al.
patent: 4884541 (1989-12-01), Marriott

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