Title:
火花点火式ガソリンエンジン
Document Type and Number:
Japanese Patent JP5494545
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a spark-ignition gasoline engine that can perform proper compression self-ignition combustion by supplying ignition energy to a sufficiently atomized fuel.SOLUTION: An injector-housing part 62 is formed at the central part in the radial direction of the ceiling 60 of a combustion chamber, the injector-housing part being dented to the direction distant from the crest surface of a piston 5. A recessed cavity 40 is formed at the central part in the radial direction of the crest surface of the piston 5, the cavity being dented to the direction distant from the ceiling 60 of the combustion chamber. The open periphery 40e of the cavity 40 is located outer in the radial direction than the open periphery 62b of the injector-housing part 62. The ignition point SI of an ignition plug 20 is located outer in the radial direction than the open periphery 62b of the injector-housing part 62 and inner in the radial direction than the open periphery 40e of the cavity 40. An ignition assist is executed late in the compression step.
Inventors:
Nou Yoshinao
Masahisa Yamakawa
Kohei Iwai
Kazuhiro Nagatsu
Takashi Goster
Nobuyuki Ota
Tadashi Hidaka
Takano Nagano
Akira Yinyama
Hiroshi Abe
Masahisa Yamakawa
Kohei Iwai
Kazuhiro Nagatsu
Takashi Goster
Nobuyuki Ota
Tadashi Hidaka
Takano Nagano
Akira Yinyama
Hiroshi Abe
Application Number:
JP2011080155A
Publication Date:
May 14, 2014
Filing Date:
March 31, 2011
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B23/10; F02B11/00; F02D41/34
Domestic Patent References:
| JP10131758A | ||||
| JP2003201846A | ||||
| JP2009108777A | ||||
| JP2008025534A | ||||
| JP2008157075A | ||||
| JP2009019502A | ||||
| JP2007064175A | ||||
| JP2005139931A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Ko Sato
Masataka Otani
Ko Sato