Paper Title:
Study on Wear-Preventing of Needle Valve in Fuel Injection System Mounted on DME Engine
  Abstract

The purpose of this paper is to provide theoretical support for the structural design to prevent the wear of needle. The actual wear of the orientation part of the needle in scrapped needles was researched. The presented results showed that the main reason to the wear of the orientation part of needle was the dynamic instability and the abrasives enter into the surface of orientation part which increases the wear, and that the calculation model of dynamic stability was proposed to prevent the wear of needle. This model was a pressure rod, one end of which was fixed, the other was free, and the two ends were pressed on axial force which changes with time. Besides, the classic formula of dynamic stability of pressure rod was changed rationally, so as to correspond with the calculation model. It will play a part in preventing the wear of needle.

  Info
Periodical
Advanced Materials Research (Volumes 228-229)
Edited by
Quanjie Gao
Pages
1057-1062
DOI
10.4028/www.scientific.net/AMR.228-229.1057
Citation
X. R. Wen, G. D. Zhang, W. H. Wang, X. Lu, S. Jing, "Study on Wear-Preventing of Needle Valve in Fuel Injection System Mounted on DME Engine", Advanced Materials Research, Vols. 228-229, pp. 1057-1062, 2011
Online since
April 2011
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Price
$32.00
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