Title:
COMBUSTION CHAMBER STRUCTURE OF GASOLINE ENGINE AND GASOLINE ENGINE
Document Type and Number:
WIPO Patent Application WO/2023/024965
Kind Code:
A1
Abstract:
A combustion chamber structure of a gasoline engine, comprising: a pre-combustion chamber (1) and a main combustion chamber (2); a bottom wall of the main combustion chamber comprises a piston top wall (22) and a boss (21) disposed on the piston top wall; the boss comprises a boss top wall (211) parallel to the piston top wall, and a first side wall (212) and a second side wall (213) spaced apart in the X-axis direction, wherein the first side wall is connected to the boss top wall and to a bottom wall of an intake valve pit, and the second side wall is connected to the boss top wall and to a bottom wall of an exhaust valve pit; avoidance grooves (214) are provided at intervals along the Y-axis direction of the boss; the pre-combustion chamber is uniformly provided with at least two spray holes (11) along the circumference thereof, the pre-combustion chamber is communicated with the main combustion chamber via the spray holes, wherein two spray holes are in one-to-one correspondence with the avoidance grooves. Additionally disclosed is a gasoline engine.
Inventors:
HAN LINGHAI (CN)
LIU YAODONG (CN)
LI JINCHENG (CN)
CHEN HAIE (CN)
LI XIAN (CN)
BAI HONGJIANG (CN)
QIAN DINGCHAO (CN)
LIU YAODONG (CN)
LI JINCHENG (CN)
CHEN HAIE (CN)
LI XIAN (CN)
BAI HONGJIANG (CN)
QIAN DINGCHAO (CN)
Application Number:
PCT/CN2022/112669
Publication Date:
March 02, 2023
Filing Date:
August 16, 2022
Export Citation:
Assignee:
CHINA FAW CO LTD (CN)
International Classes:
F02F3/26; F02B19/12
Foreign References:
| CN113586227A | 2021-11-02 | |||
| US20150034044A1 | 2015-02-05 | |||
| US4183343A | 1980-01-15 | |||
| CN209990557U | 2020-01-24 | |||
| JP2002276369A | 2002-09-25 | |||
| JP2007040174A | 2007-02-15 | |||
| JP2003278547A | 2003-10-02 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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