Title:
Combustion chamber structure of a direct-injection engine
Document Type and Number:
Japanese Patent JP6056841
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent an increase of a cooling loss caused by a squish flow.SOLUTION: A combustion chamber structure of an engine 1 comprises a cylinder head 13 having a ceiling part 130, a piston 16 having an apex face 160, and a fuel injection valve 6. A ridge squish area 176 is formed between a ridge 163 of the apex face 160 and a crest 133 of the ceiling part 130. The apex face 160 further includes a tapered face 165 which connects a side peripheral face 16a and the ridge 163 while inclining so as to approximate a cavity 164 as progressing toward the ridge 163. An opposing part 134 being a portion opposing the tapered face 165 of the ceiling part 130 is inclined so as to form a tapered squish area 178 between the tapered face 165 and itself. An interval between the tapered face 165 and the opposing part 134 is expanded at a portion at the ridge 163 side compared with the other portion of the piston 16 at the side peripheral face 16a side.SELECTED DRAWING: Figure 7
Inventors:
Nou Yoshinao
Nobuyuki Ota
Akira Yinyama
Kazuaki Narahara
Nobuyuki Ota
Akira Yinyama
Kazuaki Narahara
Application Number:
JP2014262815A
Publication Date:
January 11, 2017
Filing Date:
December 25, 2014
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B23/10; F02B23/00; F02F3/26
Domestic Patent References:
| JP2014132166A | ||||
| JP2007077953A | ||||
| JP62072437U | ||||
| JP2008002399A | ||||
| JP2014234740A | ||||
| JP2007239563A | ||||
| JP2004084589A | ||||
| JP2002004863A | ||||
| JP9280052A | ||||
| JP2014185525A |
Attorney, Agent or Firm:
Maeda patent office
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