Port-controlled two-cycle engine having scavenging

Details Port-controlled two-cycle engine having scavenging Port-controlled two-cycle engine having scavenging

2005-04-19

2005-04-19

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

Reexamination Certificate

active

06880503

ABSTRACT:
A two-cycle engine includes a reciprocating piston reciprocable in a combustion chamber and interconnected with a crankshaft in a crankcase. A transfer channel selectively fluidly connects the crankcase with the combustion chamber so a fuel/air mixture in the crankcase enters the combustion chamber for discharging exhaust gas from the combustion chamber. The transfer channel has a constructive volume between an inlet window into the combustion chamber and an opening window into the crankcase such that the volume of essentially fuel-free air that is drawn into the transfer channel during an intake stroke is no more than 75% of the constructive volume of the transfer channel.

REFERENCES:
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patent: 5379732 (1995-01-01), Mavinahally et al.
patent: 6298811 (2001-10-01), Sawada et al.
patent: 6491004 (2002-12-01), Rosskamp et al.
patent: 6644251 (2003-11-01), Klaric
patent: 20010018899 (2001-09-01), Rosskamp et al.
patent: 2087207 (1994-07-01), None
patent: 0971110 (2000-01-01), None
patent: 2 754 563 (1998-04-01), None
patent: WO 200043650 (2000-07-01), None

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