Two-cycle engine having scavenging

Details Two-cycle engine having scavenging Two-cycle engine having scavenging

2005-05-24

2005-05-24

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

Reexamination Certificate

active

06895910

ABSTRACT:
A two-cycle engine, especially for a portable, manually guided implement, has a combustion chamber cylinder in which a piston reciprocates. The engine has at least one transfer channel that fluidically connects the crankcase with the combustion chamber and opens thereinto via an inlet window. The engine has an air channel that supplies essentially fuel-free gas into the cylinder via an air channel window. The piston has at least one piston window establishes a fluidic connection between the air channel window and the inlet window of the transfer channel. The piston has. The distance of the upper edge of the piston window in the direction of the longitudinal axis of the cylinder from the axis of the connecting rod eye of a connecting rod that is connected with the piston is less than the radius of a piston boss for connecting the piston with the connecting rod.

REFERENCES:
patent: 4987864 (1991-01-01), Cantrell et al.
patent: 6691650 (2004-02-01), Zama et al.
patent: 20020043227 (2002-04-01), Carlsson et al.
patent: 0 312 162 (1969-04-01), None
patent: 1-006.235 (1952-04-01), None
patent: 11315722 (1999-11-01), None
patent: 2001323816 (2001-11-01), None
patent: WO 0144634 (2001-06-01), None

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