Internal-combustion engines – Two-cycle – Whirl through piston-controlled ports
Patent
1995-01-20
1995-12-05
Macy, Marguerite
Internal-combustion engines
Two-cycle
Whirl through piston-controlled ports
123 65P, F02B 2516, F02F 122
Patent
active
054719607
ABSTRACT:
A cylinder for a two-cycle internal combustion engine is disclosed which enables reduction of HC in exhaust gas to be effectively attained without any complicated modification. A pair of scavenging ports 20, 20 are oppositely formed which employ loop scavenging mode towards the direction opposite to an exhaust port 16 symmetrically with respect to the longitudinal section F bisecting the exhaust port 16. A pocket portion 20c is formed at the innermost end of the inner surface 20a of the end portion closer to the exhaust port 16 of each of the scavenging ports 20, 20 to form a prolonged wall portion 20d extending along the inner wall surface 5 of the cylinder 1 in the direction apart from the exhaust port 16.b
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Nagao Yoshiaki
Tsutsui Kazuhiro
Kioritz & Corporation
Macy Marguerite
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