Internal-combustion engines – Two-cycle – Rear compression
Reexamination Certificate
2008-04-29
2008-04-29
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Two-cycle
Rear compression
C123S0730AE, C123S0730SC, C123S0650WA
Reexamination Certificate
active
07363888
ABSTRACT:
A two-stroke engine has a cylinder and a piston reciprocating in the cylinder and delimiting a combustion chamber. The piston has at least one piston recess. A crankshaft is rotatably arranged in a crankcase connected to the cylinder. A connecting rod connects piston and crankshaft. Transfer channels connect the crankcase to the combustion chamber in pre-defined piston positions. The transfer channels each have a transfer port opening into the combustion chamber. A device for supplying fuel and an air channel supplying combustion air are provided. In predetermined piston positions, the air channel is connected by the piston recess to the transfer ports. The air channel opens into the cylinder bore opposite the exhaust for the exhaust gases. The air channel, the piston recess, and the transfer channels define an air passage that provides approximately uniform distribution of air from the air channel into the transfer channels.
REFERENCES:
patent: 4353333 (1982-10-01), Iio
patent: 5699761 (1997-12-01), Yamaguchi et al.
patent: 6497204 (2002-12-01), Miyazaki et al.
patent: 6880503 (2005-04-01), Rosskamp
patent: 6895910 (2005-05-01), Geyer et al.
patent: 6912979 (2005-07-01), Fleig et al.
patent: 6945203 (2005-09-01), Amend et al.
patent: 6953011 (2005-10-01), Geyer et al.
patent: 7021253 (2006-04-01), Amend et al.
patent: 2003/0111027 (2003-06-01), Schmidt et al.
patent: 2003/0217709 (2003-11-01), Geyer et al.
patent: 2004/0182338 (2004-09-01), Amend et al.
patent: 2004/0182339 (2004-09-01), Geyer et al.
patent: 2005/0183679 (2005-08-01), Yasuda
patent: 2005/0205043 (2005-09-01), Schmidt et al.
Bähner Andreas
Blechsmidt Ralf
Geyer Werner
Kaminski Silke
Klimmek Axel
Andreas Stihl AG & Co. KG
Cronin Stephen K.
Huckett Gudrue E.
Leung Ka Chun
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