Title:
COMBUSTION CHAMBER OF DIRECT INJECTION DIESEL ENGINE
Document Type and Number:
WIPO Patent Application WO/2001/012966
Kind Code:
A1
Abstract:
A combustion chamber (100) of a direct injection diesel engine capable of sufficiently mixing fuel (2) injected from a fuel injection nozzle (1) with air to produce approximately uniform mixture so that approximately a uniform combustion can be performed in the entire area of the combustion chamber, wherein an annular recessed part (6) having a combustion chamber wall surface (9) onto which the fuel (2) is injected from the fuel injection nozzle (1) is provided, an opening diameter (d1) of a combustion chamber opening part (3) is set smaller than the maximum diameter (d2) of the annular recessed part (6) and larger than a diameter (d3) of a combustion chamber wall surface nearer a combustion chamber bottom part (5) than the annular recessed part (6), a center projected part (7) with a height (h3) and a diameter (d5) that do not allow the fuel (2) injected from the fuel injection nozzle (1) to collide is provided at the combustion chamber bottom part (5), a flat part (4) is provided between the combustion chamber wall surface (9) lower than the annular recessed part (6) and the annular recessed part (6), and a chamfered annular projected part is provided on the combustion chamber opening part (3).
Inventors:
YUZAKI KEIICHIRO (JP)
HARA MICHIHIKO (JP)
NAGAKURA KATSUHIKO (JP)
HARA MICHIHIKO (JP)
NAGAKURA KATSUHIKO (JP)
Application Number:
PCT/JP2000/005320
Publication Date:
February 22, 2001
Filing Date:
August 09, 2000
Export Citation:
Assignee:
YANMAR DIESEL ENGINE CO (JP)
YUZAKI KEIICHIRO (JP)
HARA MICHIHIKO (JP)
NAGAKURA KATSUHIKO (JP)
YUZAKI KEIICHIRO (JP)
HARA MICHIHIKO (JP)
NAGAKURA KATSUHIKO (JP)
International Classes:
F02B23/06; F02B3/06; (IPC1-7): F02B23/06
Foreign References:
| JPH1136868A | 1999-02-09 | |||
| JPH05106443A | 1993-04-27 | |||
| JPS56106024A | 1981-08-24 | |||
| JPS56106023A | 1981-08-24 | |||
| JPS4732204A | ||||
| JPS56106022A | 1981-08-24 | |||
| JPS62291424A | 1987-12-18 | |||
| JPS62291425A | 1987-12-18 |
Attorney, Agent or Firm:
Aoyama, Tamotsu (Shiromi 1-chome Chuo-ku Osaka-shi, Osaka, JP)
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