Experimental Study on Plateau Matching Performance of Turbocharger and Vehicle Diesel Engine

摘要：

In order to improve the plateau adaptability of CY4102BZLQ-A2A turbocharged diesel engine, the matching performances of the diesel engine with TB28 and HP60 turbochargers at different altitudes (0 m, 2,000 m, 3,000 m, 3,500 m, 4,000 m) were investigated on the engine test bed for simulating high altitude (low atmosphere pressure). Results show that HP 60 turbocharger is more suitable to match the engine in terms of engine performance, intake air characteristics, turbocharger rotational speed etc. TB28 turbocharger is overspeed when the engine runs at 3,500 m altitude and 2,600 r/min rotational speed; while HP60 turbocharger is overspeed when the engine runs at 4,000 m altitude and 2,800 r/min rotational speed. No matter which turbocharger is selected to match the engine, the performance of the engine will deteriorate at different extents. The intake air flow mass and the air-fuel ratio decrease by 7.1-10.5％ and 7.2-10.3％ respectively with altitude increasing every 1.000 m. By contrast with 0 m altitude, engine torque and power at 4,000 m altitude decrease within 1％ and the specific fuel consumption increases by 3.2-3.5％ at the maximum torque speed, while the engine torque and power decrease by 4.6-5.3％ and 4.5-5.2％ respectively and the specific fuel consumption increases by 53-11.5％ at higher and lower engine rotational speed.

关键词： dlesel engine turbocharger matching high altitude

作者: Zhou Guangmeng Liu Ruilin Dong Surong Liu Gang Zheng Zhi Hao Shixiang

作者单位: Postgraduate School, Naval University of Engineering, Wuhan, 430033, China Department of Automotive Department of Automotive Engineering, Military Transportation University, Tianjin, 300161, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 709-712

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）