Title:
2サイクルエンジン
Document Type and Number:
Japanese Patent JP4342960
Kind Code:
B2
Abstract:
To provide a two-cycle combustion engine of a simplified structure with the number of component parts reduced, which is effective to suppress a blow-off of the air/fuel mixture and is excellent in acceleration, the two-cycle combustion engine includes scavenging passages communication between a combustion chamber and a crank chamber, an air/furl mixture passage for introducing an air/fuel mixture from a fuel supply device to the crank chamber, and a branch passage ramified off from the air/fuel mixture passage for supplying a lean air/fuel mixture into the scavenging passages. During an intake stroke, the lean air/fuel mixture from the branch passage is introduced into the scavenging passages and the air/fuel mixture is introduced from the air/fuel mixture passage into the crank chamber. During a scavenging stroke, the lean air/fuel mixture is supplied from the scavenging passages into the combustion chamber prior to introduction of the air/fuel mixture.
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Inventors:
Yuasa
Masanori Kobayashi
Masanori Kobayashi
Application Number:
JP2004008755A
Publication Date:
October 14, 2009
Filing Date:
January 16, 2004
Export Citation:
Assignee:
Kawasaki Heavy Industries, Ltd.
International Classes:
F02B33/04; F02B25/14; F02B25/16; F02B25/20
Domestic Patent References:
| JP2001317361A | ||||
| JP11303639A | ||||
| JP2000018042A |
Attorney, Agent or Firm:
Shuji Sugimoto