Title:
COMBUSTION CHAMBER STRUCTURE FOR ENGINE
Document Type and Number:
Japanese Patent JP2019035398
Kind Code:
A
Abstract:
To provide a combustion chamber structure for an engine, capable of suppressing the generation of preignition even in the operation in a high-load operation region while actualizing homogeneous combustion in a whole combustion chamber to suppress the degradation of emission performance.SOLUTION: An injector 18 is constructed to inject fuel toward at least a +X side (an exhaust port side). A virtual line LSP is drawn passing through an ignition part 17A of a spark plug 17 and extending in a Z direction. When a piston 5 is at a compression top dead center, the combustion chamber volume of an area (the area pointed by an arrow head B) on a -X side further than the virtual line LSP is smaller than the combustion chamber volume of an area (the area pointed by an arrow head A) on the +X side further than the virtual line LSP. On the -X side (an intake port side) of the combustion chamber, a reverse squish flow generation part is formed with a difference between the combustion chamber volumes.SELECTED DRAWING: Figure 9
Inventors:
IMAMURA SATOSHI
FUKUMA MASANARI
NAKAHARA KOJI
INOUE ATSUSHI
MATSUMOTO KOTA
UEKI YOSHIHARU
KONO MICHIHARU
HONDA YUYA
ONISHI KENTO
FUKUMA MASANARI
NAKAHARA KOJI
INOUE ATSUSHI
MATSUMOTO KOTA
UEKI YOSHIHARU
KONO MICHIHARU
HONDA YUYA
ONISHI KENTO
Application Number:
JP2017205154A
Publication Date:
March 07, 2019
Filing Date:
October 24, 2017
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F02B23/10
Domestic Patent References:
| JPH10131756A | 1998-05-19 | |||
| JPH11107759A | 1999-04-20 | |||
| JP2001159315A | 2001-06-12 | |||
| JPH09280055A | 1997-10-28 | |||
| JP2015001166A | 2015-01-05 | |||
| JPH04107485U | 1992-09-17 | |||
| JPH10131757A | 1998-05-19 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Tsutomu Fukunari
Masataka Otani
Tsutomu Fukunari