Air inlet apparatus for internal combustion engine

Details Air inlet apparatus for internal combustion engine Air inlet apparatus for internal combustion engine

1994-10-06

1996-06-18

Kamen, Noah P.

Internal-combustion engines

Cooling

Air-cooled

123198E, 55437, 55DIG14, 55DIG28, F01P 102

Patent

active

055267777

ABSTRACT:
An air path is provided in the main body of a chain saw so as to connect an air inlet port provided on the main body and a carburetor chamber of the internal combustion engine and also connected to a cooling fan chamber. For use under normal conditions, combustion air is taken from the air inlet port into the carburetor chamber. In case of a rainy or snowy day, the air inlet port is closed and combustion air is taken from the cooling chamber into the carburetor chamber, air control means is provided between the air path and the cooling fan chamber. This air control means generates stagnation of air flow in the cooling chamber in order to supply air into the carburetor chamber and prevent dust and the like from being taken into the air path.

REFERENCES:
patent: 4261302 (1981-04-01), Sheldon
patent: 5367988 (1994-11-01), Collins

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