Two-cycle combustion engine with air scavenging system...

Details Two-cycle combustion engine with air scavenging system... Two-cycle combustion engine with air scavenging system...

2006-12-12

2006-12-12

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

C123S0650PD

Reexamination Certificate

active

07146942

ABSTRACT:
To provide an improved air scavenging type two-cycle combustion engine equipped with a pressure reducing device in which clogging of a decompressing hole can easily be removed, a two-cycle combustion engine includes a delivery passage (32) for introducing air into a combustion chamber (9) prior to an air-fuel mixture. This delivery passage (32) has a downstream opening (32c) through which the air is introduced into the combustion chamber by way of a scavenging port (40a). A decompressing hole (38) is defined for communicating the combustion chamber (9) to a portion of the delivery passage (32) and is closed by a piston (16) then ascending, at a timing delayed relative to closure of an exhaust port (31).

REFERENCES:
patent: 6-14453 (1994-02-01), None
patent: WO 2004/038195 (2004-05-01), None

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