Fluid damping clearance in a control valve of injector

2007, Volume 2, Issue 4

Abstract

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Frontiers of Mechanical Engineering >> 2007, Volume 2, Issue 4 doi: 10.1007/s11465-007-0075-x

Fluid damping clearance in a control valve of injector

1.School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2.Weifu Technological Center, Wuxi 214031, China

Available online: 2007-12-05

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Abstract

A force model of a control valve of injector is set up, and the changes of the fluid damping clearance are investigated on the basis of the results of the computational fluid dynamics (CFD) and the experiments of control valve of injector. Results indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is the most sufficient to dampen any excessive control valve poppet bouncing.

Keywords

control ; computational ; bouncing ; CFD ; excessive control

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