Gasoline engine combustion chamber and automobile

A combustion chamber and gasoline engine technology, applied to combustion engines, mechanical equipment, machines/engines, etc., can solve problems such as increased knocking tendency, and achieve the effect of improving the turbulence level in the cylinder

Active Publication Date: 2022-06-07
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality of the combustion system is crucial to improving the thermal efficiency of the engine. Increasing the compression ratio is conducive to improving thermal efficiency, but with the increase of the compression ratio, the tendency of knocking increases

Method used

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  • Gasoline engine combustion chamber and automobile
  • Gasoline engine combustion chamber and automobile
  • Gasoline engine combustion chamber and automobile

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Experimental program
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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] In this embodiment, as Figure 1 to Figure 2 As shown, a gasoline engine combustion chamber includes a combustion chamber body composed of a combustion chamber top surface and a combustion chamber bottom surface E, two exhaust holes 4 are provided in the front of the combustion chamber top surface, and two exhaust holes 4 are provided at the rear of the combustion chamber top surface. There are two intake holes 2 corresponding to the two exhaust holes 4 at the top of the combustion chamber, a spark plug hole 3 is arranged in the middle of the top surface of the combustion chamber, and between the two intake holes 2 on the top surface of the combustion chamber The part is equipped with injector 1.

[0028] In this embodiment, the top surface of the combustion chamber is provided with arc-shaped curved surfaces (that is, the arc-shaped curved surface C-1 and the ...

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Abstract

The invention discloses a gasoline engine combustion chamber and an automobile, comprising a combustion chamber body composed of a combustion chamber top surface and a combustion chamber bottom surface E, two exhaust holes are arranged at the front of the combustion chamber top surface, and The rear part of the rear part is provided with two air intake holes corresponding to the two exhaust holes; the top surface of the combustion chamber is provided with arc-shaped curved surface; the top surface of the combustion chamber is provided with a squishing surface perpendicular to the bottom surface E of the combustion chamber on the outside of each arc-shaped curved surface; The flow surface, the inclined flow guide surface is inclined downward from the arc surface to the squeezing surface. The invention can improve the tendency of knocking caused by the spontaneous combustion of the terminal mixed gas at the exhaust side under high temperature and high pressure.

Description

technical field [0001] The invention belongs to the technical field of automobile engines, in particular to a gasoline engine combustion chamber and an automobile. Background technique [0002] In the face of stricter emission and fuel consumption regulations, as well as challenges from the rapid development of new energy sources, how to further improve thermal efficiency, improve fuel economy, and make traditional power vehicles more competitive has become a research focus for major OEMs. The quality of combustion system is very important to improve the thermal efficiency of the engine. Increasing the compression ratio is beneficial to improve the thermal efficiency, but with the increase of the compression ratio, the knocking tendency increases. Based on the theory of engine in-cylinder combustion, high turbulence intensity and its reasonable distribution help reduce the risk of knocking. Therefore, it is necessary to refine the design of the combustion chamber structure. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B23/10
CPCF02B23/10F02B23/104F02B2023/106Y02T10/12
Inventor 罗招郑建军张恩源袁园
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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