开发新型燃烧窒降低非直喷式柴油机的NO_x排放

• 出 处: 小型内燃机
• 发表日期: 1995年05期
• 关键词: 主燃烧室 容积比 燃烧室试验 直喷式柴油机 NO_x 活塞顶 混合气 燃烧特性 试验研究 排放性能

本研究的目的是寻找一种不太牺性其他性能，只改变燃烧室即可降低ＮＯ＿ｘ排放的有效途径，本试验研究对减少ＮＯ＿ｘ排放有重要效果，本文介绍一种为改善主燃烧室的燃烧和缩短放热周期而设计的带新型燃烧室的活塞，其作用是使从喷管喷入主燃烧室的火焰及所形成的双涡流有效地促进混合气的混合而实现完全燃烧。实验结果证实了新活塞顶燃烧室在减少ＮＯ＿ｘ、碳烟和ＨＣ排放方面很有效。

The purpose of this study is to find an effective way to reduce NO_x emissions without sacrificing other properties. The experimental study has an important effect on reducing NO_x emissions. In this paper, a method to improve the combustion of the main combustion chamber And shortening the exothermic cycle designed with a new combustion chamber piston, the role of the nozzle is injected into the main combustion chamber from the flame and the resulting double vortex effectively promote the mixing of the mixture to achieve complete combustion. The experimental results confirm that the new piston top combustion chamber is effective in reducing NO x, soot and HC emissions.