Arrangement for controlling the intake air for the carburetor of

Details Arrangement for controlling the intake air for the carburetor of Arrangement for controlling the intake air for the carburetor of

1986-06-26

1987-09-08

Miles, Tim

Internal-combustion engines

Charge forming device

Heating of combustible mixture

261 641, 261144, F02M 3114

Patent

active

046916814

ABSTRACT:
The invention is directed to an arrangement for controlling the intake air for the carburetor of a hand-held portable tool such as a motor-driven chain saw or the like. During winter operation, the cooling air that is heated by the engine cylinder is carried through a pass-through opening to the carburetor. During summer operation the pass-through opening is blocked by a slide that is pivotally mounted on a pivot axis. The slide selectively opens or closes the pass-through opening and is configured as a deflector which, in its open position baffles the heated cooling air from the engine cylinder and guides it toward the carburetor.

REFERENCES:
patent: 908112 (1908-12-01), Longenecker
patent: 1319271 (1919-10-01), Cunningham
patent: 1933365 (1933-10-01), Chandler et al.
patent: 2429208 (1947-10-01), Matthews et al.
patent: 3678973 (1972-07-01), Loop
patent: 4175524 (1979-11-01), Coddington
patent: 4526156 (1985-07-01), Briche

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