发动机燃烧室设计方法、发动机燃烧室及发动机

By obtaining the cylinder head fire surface temperature to determine the target range of throat depth and platform angle, and combining injector parameter optimization and fluid dynamics simulation, the problems of long combustion chamber design cycle and high cost in the existing technology are solved, and efficient and low-cost engine combustion chamber design is realized.

CN117473664BActive Publication Date: 2026-07-17HUNAN DEUTZ POWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN DEUTZ POWER CO LTD
Filing Date
2023-10-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies lack a systematic process for engine combustion chamber design, relying on manual experience, which leads to long development cycles and high costs. Furthermore, the influence of cylinder head fire surface temperature on combustion chamber shape is not considered, resulting in redundant calculations and invalid solutions.

Method used

By obtaining the target temperature of the combustion chamber cylinder head fire surface, the target range of throat depth and the angle between the platform above the throat is determined. Based on these parameters, the combustion chamber is designed and optimized by setting the level. Combined with the fuel injector parameter optimization, the optimization scheme is screened using a fluid dynamics simulation model.

Benefits of technology

This approach achieves standardization and systematization of combustion chamber design, reduces redundant calculations and experiments, shortens the development cycle, lowers costs, and takes into account the influence of cylinder head fire surface temperature, thereby improving the rationality and efficiency of the design.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及发动机设计技术领域,尤其涉及一种发动机燃烧室设计方法、发动机燃烧室及发动机。方法包括:获取燃烧室的缸盖的火力面的目标温度;基于目标温度,得到至少一个第一目标参数的第一目标取值范围,第一目标取值范围与目标温度相对应,第一目标参数为燃烧室的喉口深度或喉口上方平台夹角,喉口上方平台夹角指喉口与发动机的活塞顶面之间的夹角;基于第一目标取值范围,对对应的第一目标参数设定至少一个水平;基于全部第一目标参数的水平,进行发动机燃烧室设计,得到至少一个燃烧室方案。实现了燃烧室设计开发的流程标准化、系统化,避免对过多方案的计算与试验。并且,较好地考虑到了缸盖的火力面的温度对于燃烧室形状的影响。
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