Carburetor electrically-operated automatic choke system

Details Carburetor electrically-operated automatic choke system Carburetor electrically-operated automatic choke system

2007-04-17

2007-04-17

Kwon, John T. (Department: 3747)

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

C123S179150, C261S064100

Reexamination Certificate

active

11199369

ABSTRACT:
An electrically-operated automatic choke system of a carburetor includes a choke valve connected to a choke valve closure spring that urges the choke valve in a direction to close it. A wax-type temperature sensitive actuating device is coupled to the carburetor to receive heat generated by an engine. A piston member of the device faces a pivoting member coupled to the choke valve and makes contact with, or moves away from, the pivoting member on a pivoting path to the closed side of the choke valve. While the engine has stopped running, closure of the choke valve by the choke valve closure spring is restricted according to the amount the piston member protrudes.

REFERENCES:
patent: 4096837 (1978-06-01), Iiyama et al.
patent: 4524742 (1985-06-01), Bonfiglioli et al.
patent: 5660765 (1997-08-01), King et al.
patent: 2006/0037574 (2006-02-01), Matsuda et al.
patent: 2006/0038305 (2006-02-01), Bungo et al.
patent: 2006/0102126 (2006-05-01), Nakata et al.
patent: 58-155255 (1983-09-01), None

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