西南交通大学学报 2000, 35(5) 517-521 DOI:     ISSN: 0258-2724 CN: 51-1277/U

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柴油机
模拟试验
表面形貌
磨合规范
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石心余
沈权
PubMed
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内燃机车柴油机磨合规范的试验研究

石心余; 沈权

西南交通大学工程科学研究院,四川成都610031

摘要

采用检测表面形貌的方法 ,通过模拟试验对东风4B型内燃机车柴油机的现行磨合规范进行试验研究 ,研究分析磨合进展情况 ,提出改进的磨合规范 ,并在实际使用的机车柴油机上做实测性试验 ,检测磨合前后柴油机缸套内表面的表面形貌的变化 ,以判断“改进磨合规范”合理程度。试验结果表明 :按“改进磨合规范”磨合比按现行磨合规范磨合缩短时间 37%左右

关键词 柴油机   模拟试验   表面形貌   磨合规范   

Experimental Study on the Running-in Specifications of Diesel Locomotive Engine

SHIXINYu;SHENQUAN

School of Mechanical Eng., Southwest Jiaotong University, Chengdu 610031, China

Abstract:

By measuring the topographies of inner surfaces of diesel cylinders, the author carried out a study on the current running-in specifications of Dongfeng 4B diesel locomotive engine through simulation tests. In the tests, after analyzing the state parameters in the running-in process, the author proposed a new test procedure, modified running-in specifications, for the running-in process of cylinders. The new specifications proposed was applied to the running-in test on a practical locomotive diesel engine, and the difference between the topographies of the inner surface of a cylinder was analyzed before and after the running process to estimate the effect of the new procedure. The results show that the running-in time with the new procedure is about 37% shorter than that of the current running-in specifications.

Keywords: simulation test   topographies   running-in specifications    diesel engine  
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