Gasoline engine combustion chamber and automobile

A technology for combustion chambers and gasoline engines, which is applied to combustion engines, mechanical equipment, machines/engines, etc. It can solve the problems of increased knocking tendency and achieve the effect of improving the level of turbulence

Active Publication Date: 2020-03-17
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

Examples

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Embodiment Construction

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

[0027] In this example, if Figure 1 to Figure 2 As shown, a combustion chamber of a gasoline engine comprises a combustion chamber body composed of a combustion chamber top surface and a combustion chamber bottom surface E, and two exhaust holes 4 are arranged on the front portion of the combustion chamber top surface, and at the rear of the combustion chamber top surface There are two air intake holes 2 corresponding to the two exhaust holes 4 on the upper part, a spark plug hole 3 is provided in the middle of the top surface of the combustion chamber, and a spark plug hole 3 is provided between the two air intake holes 2 on the top surface of the combustion chamber. A fuel injector 1 is provided at the position.

[0028] In this embodiment, the top surface of the combustion chamber is provided with an arc-shaped curved surface at the position between the exhaust hole 4 ...

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Abstract

The invention discloses a gasoline engine combustion chamber and an automobile. The gasoline engine combustion chamber comprises a combustion chamber body composed of a combustion chamber top surfaceand a combustion chamber bottom surface E; two exhaust holes are arranged at the front part of the combustion chamber top surface, and two air inlet holes which are in one-to-one correspondence with the two exhaust holes are arranged at the rear part of the of the combustion chamber top surface; the combustion chamber top surface is provided with arc-shaped curved surfaces at positions between theexhaust holes and the air inlet holes located on the same side; the combustion chamber top surface is provided with a squish surface perpendicular to the combustion chamber bottom surface E on the outer side of each arc-shaped curved surface; and an inclined guide surface is arranged between the arc-shaped curved surface and the squish surface on the same side, and the inclined guide surface inclines downwards from the arc-shaped curved surface to the squish surface. The gasoline engine combustion chamber provided by the invention can improve the tendency of knocking caused by the spontaneouscombustion of the terminal mixed gas on an exhaust side under high temperature and high pressure.

Description

technical field [0001] The invention belongs to the technical field of automobile engines, and in particular relates to a combustion chamber of a gasoline engine and an automobile. Background technique [0002] In the face of more stringent emission and fuel consumption regulations and 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 hotspot for major OEMs. The quality of the combustion system is crucial to improving the thermal efficiency of the engine. Increasing the compression ratio is beneficial to improving the thermal efficiency, but with the increase of the compression ratio, the tendency of knocking increases. Based on the combustion theory in the engine cylinder, high turbulence intensity and its reasonable distribution can help reduce the risk of knocking. Therefore, it is necessary to refine the design of the comb...

Claims

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Application Information

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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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