Study on characteristics of exhaust valve for intelligent low-speed marine diesel engine

被引：0

作者：

Fan, Liyun ^{[1
]}

Wang, Hao ^{[1
]}

Li, Qing ^{[1
]}

Song, Enzhe ^{[1
]}

Shi, Yong ^{[1
]}

Ma, Xiuzhen ^{[1
]}

Wu, Zhaohui ^{[2
]}

机构：

[1] College of Power and Energy Engineering, Harbin Engineering University

[2] Hudong Heavy Machinery Co. Ltd.

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2013年 / 34卷 / 07期

关键词：

Exhaust valve; Marine diesel engine; Oil inlet chamfer; Oil return chamfer; Orifice;

D O I：

10.3969/j.issn.1006-7043.201211046

中图分类号：

学科分类号：

摘要：

For the purpose of predicting the exhaust opening and closing processes, the researchers built a calculation model of an exhaust valve driving mechanism for intelligent low-speed marine diesel engine utilizing the AMESim software, to accurately simulate exhaust valve driving process and also validate functionality of the models by comparing test data. The function of the oil inlet chamfer, oil return chamfer and the orifice to the open and close progress of the hydraulic exhaust valve were analyzed and the corresponding conclusions were drawn. As the oil inlet chamfer of the hydraulic control unit of exhaust valve increases, the opening of the hydraulic exhaust valve takes place earlier and the closing of the hydraulic exhaust valve takes place later. The smaller the servo oil pressure, the more obvious phenomenon. The length of the close time of the hydraulic exhaust valve is smaller with the increase of the oil outlet chamfer. With the throttle diameter being bigger, it allows the open time of the hydraulic exhaust valve to be longer. Thus, the bigger the throttle diameter, the earlier the close time of the hydraulic exhaust valve.

引用

页码：844 / 848

页数：4

共 7 条

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