Two-cycle engine

Details Two-cycle engine Two-cycle engine

2005-10-11

2005-10-11

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

Reexamination Certificate

active

06953011

ABSTRACT:
A two-cycle engine, especially for a portable, manually-guided implement, is provided. The engine has a cylinder with a combustion chamber delimited by a reciprocating piston. An inlet opens into the cylinder for supplying fuel/air mixture into a crankcase. The engine has an outlet for exhaust gases from the combustion chamber and at least one transfer channel, which, in prescribed positions of the piston, fluidically connects the crankcase with the combustion chamber. The engine has a clean air path that includes an air channel, a piston window and a transfer channel. In prescribed positions of the piston the air channel is fluidically connected via the piston window with an inlet window of the transfer channel. The direction of flow in the clean air path from inlet to outlet extends uniformly, in at least one piston position, and in a plane that extends perpendicular to the longitudinal axis of the cylinder.

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patent: WO 01/51782 (2001-07-01), None

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