Optimization of Complex-Guided Stratified Charge Combustion System for Direct Injection Methanol Engine

李本正; 陈岳; 宫艳峰; 刘圣华; 李彧; 黄勇成

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Optimization of Complex-Guided Stratified Charge Combustion System for Direct Injection Methanol Engine

更新时间：2025-12-08

- Optimization of Complex-Guided Stratified Charge Combustion System for Direct Injection Methanol Engine
- Vol. 42, Issue 1, Pages: 27-31(2008)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK464
- Online First：10 January 2008，
  
  Published：2008
- 稿件说明：
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李本正, 陈岳, 宫艳峰, et al. Optimization of Complex-Guided Stratified Charge Combustion System for Direct Injection Methanol Engine[J]. 2008, 42(1): 27-31.
DOI：

李本正, 陈岳, 宫艳峰, et al. Optimization of Complex-Guided Stratified Charge Combustion System for Direct Injection Methanol Engine[J]. 2008, 42(1): 27-31. DOI：

摘要

综合缸内直喷发动机壁面引导、喷雾引导和气流引导分层燃烧系统的特点

在一台柴油机改造的火花点火发动机上

开展了甲醇缸内直喷复合导流分层燃烧的研究.对影响燃烧系统性能的导流面位置、火花塞伸出缸盖的距离、涡流比、供油提前角、点火提前角、喷油器启喷压力、喷油嘴形式等主要参数进行了优化.优化后的甲醇发动机可以实现过量空气系数为2.23的分层燃烧

在1 500 r/min时扭矩为135 N·m(是同工况下原柴油机的65.5%)

热效率达到29.7%

较好地实现了分层燃烧系统的优化匹配.

Abstract

On the basis of the wall-guided

spray-guided and air-guided technologies related with gasoline direct injection

the scheme of complex-guided stratified charge combustion system for direct-injection spark-ignited(DISI)methanol engine was developed. The test engine was retrofitted from a 4-cylinder diesel engine. The major parameters were optimized

such as the location of the wall guider

the protruding distance of the spark plug

swirl ratio

injection and ignition timing

nozzle type

and needle valve open pressure. The DISI methanol engine can work with the excessive air/fuel ratio as high as 2.23 at a speed of 1 500 r/min. The engine torque is 135 N·m(65.5% of diesel engine torque)and the thermal efficiency reaches 29.7%. The test results indicate that the developed DISI methanol engine can realize a good match for the stratified charge combustion.

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references

ZHAO F, LAI M C, HARRINGTON D L. Automotive spark-ignited direct-injection gasoline engines [J]. Progress in Energy and Combustion Science, 1999, 25(5): 437-562.

HIDEAKI K, TETSUYA H, MASAAKI K. Improvement of center injection spray guided DISI performance, SAE Paper 2006-01-1001 [R]. Warrendale, USA: Society of Automotive Engineers, Inc, 2006.

DRAKE M C, HAWORTH D C. Advanced gasoline engine development using optical diagnostics and numerical modeling [J]. Proceedings of the Combustion Institute, 2007, 31(1): 99-124.

黄勇成.缸内直喷灵活燃料发动机的性能和燃烧特性的理论与试验研究 [D].西安:西安交通大学能源与动力工程学院,2001.

宫艳峰.甲醇缸内直喷发动机复合导流分层燃烧系统的研究 [D].西安:西安交通大学能源与动力工程学院,2007.

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