Title:
層状掃気2サイクルエンジン
Document Type and Number:
Japanese Patent JP3592237
Kind Code:
B2
Abstract:
The engine can improve a leading air suction efficiency, has a simple structure and a low cost. Accordingly, in a stratified scavenging two-stroke cycle engine provided with an exhaust port (22) and a scavenging port (21) which are connected to a cylinder chamber (10), a leading air suction port (24) not connected to the cylinder chamber and a crank chamber (11), an air-fuel mixture suction port (23) connected to the crank chamber, a scavenging flow passage (20) connecting between the scavenging port and the crank chamber, and a piston groove (25) connecting between the leading air suction port and the scavenging port and not connecting between the air-fuel mixture suction port and the scavenging port at a time of a suction stroke, and disposed in an outer peripheral portion of the piston (4), the leading air suction port is positioned at an opposite side to the air-fuel mixture suction port with respect to an axis of the cylinder (3).
Inventors:
Hiroshi Miyazaki
Takamasa Otsuji
Takamasa Otsuji
Application Number:
JP2000613931A
Publication Date:
November 24, 2004
Filing Date:
March 29, 2000
Export Citation:
Assignee:
Komatsu Zenoah Co., Ltd.
International Classes:
F02B25/16; F02B75/16; F02F1/22; F02B1/04; F02B17/00; F02B75/02; F02M35/108; (IPC1-7): F02B29/06
Domestic Patent References:
| JP7269356A | ||||
| JP51019208A |
Foreign References:
| US5379732 | ||||
| US4876999 |
Attorney, Agent or Firm:
Takahisa Kimura