Two-cycle internal combustion engine

Details Two-cycle internal combustion engine Two-cycle internal combustion engine

1997-12-05

1999-05-04

McMahon, Marguerite

Internal-combustion engines

Two-cycle

Rear compression

F02M 2904, B27B 1700

Patent

active

058991794

ABSTRACT:
A two-cycle internal combustion engine including a carburetor, a crankcase provided with a crank chamber and a suction port, an insulator attached to the crankcase and provided with a suction passage for introducing an air-fuel mixture from the carburetor to the suction port, and a reed valve whose proximal end portion is fixed to the insulator so as to allow a free end portion thereof to be optionally press-contacted with the downstream side end face of the insulator, thereby opening or closing the suction passage, wherein a rib is formed on a portion of the downstream side end face of the insulator which is in the vicinity of the free end portion of the reed valve in such a manner as to protrude into the suction port.

REFERENCES:
patent: 5699761 (1997-12-01), Yamaguchi et al.
patent: 5727506 (1998-03-01), Tajima et al.

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