Title:
COMBUSTION CHAMBER STRUCTURE FOR ENGINE
Document Type and Number:
Japanese Patent JP2022136396
Kind Code:
A
Abstract:
To provide a combustion chamber structure for an engine with a supercharger, capable of improving the fuel economy while maintaining a high compression ratio, by achieving a higher combustion speed utilizing a tumble flow.SOLUTION: A combustion chamber structure for an engine with a supercharger has: a cavity 80 recessed into a spherical crown shape and formed in a center area of a crown surface 40 of a piston 4. A relationship of 5.0≤φ/D≤32.0 is satisfied within a range between 11 and 13 inclusive of geometric compression ratio of a combustion chamber 5 where D is a cavity depth being a depth of the cavity 80, and φ is a cavity diameter being a diameter of an outer peripheral circle of the cavity 80.SELECTED DRAWING: Figure 13
Inventors:
IMAMURA SATOSHI
FUKUMA MASANARI
YAMAGUCHI NAOHIRO
WADA YOSHITAKA
UEMURA TAKUMI
YAMAMOTO KEISUKE
FUKUMA MASANARI
YAMAGUCHI NAOHIRO
WADA YOSHITAKA
UEMURA TAKUMI
YAMAMOTO KEISUKE
Application Number:
JP2021035984A
Publication Date:
September 21, 2022
Filing Date:
March 08, 2021
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F02B23/10; F02F3/26
Attorney, Agent or Firm:
Masataka Kotani
Etsushi Kotani
Haruhiro Hirata
Etsushi Kotani
Haruhiro Hirata
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