Vaporized fuel controller for a carburetor

Details Vaporized fuel controller for a carburetor Vaporized fuel controller for a carburetor

1980-04-04

1983-03-22

Lazarus, Ira S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

261DIG67, 137DIG8, 1376255, F02M 3302

Patent

active

043771467

ABSTRACT:
A vaporized fuel controller for a carburetor which utilizes the negative pressure in the intake manifold and electromagnet to actuate a changeover valve so as to connect the gas chamber of the float chamber to the inner vent when the engine is running, and to the canister when the engine is not running. With this invention, when the negative pressure in the intake manifold decreases while the engine is running at high speeds, the electromagnet keeps the valve from being moved by the spring force and maintains the valve at a position such that the vapor fuel is supplied to the intake manifold through the inner vent.

REFERENCES:
patent: 2942622 (1960-06-01), Hahn et al.
patent: 3548797 (1970-12-01), Hagihara et al.
patent: 4083344 (1978-04-01), Sakurai et al.
patent: 4085721 (1978-04-01), Vardi et al.
patent: 4149504 (1979-04-01), Walters
patent: 4258685 (1981-03-01), Arai et al.
patent: 4283356 (1981-08-01), Arai et al.

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