스파이럴 그루브가 가공된 스풀밸브의 윤활 특성 연구 A Study on the Lubrication Characteristics of Spool Valve with Spiral Groove

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In this research, spool valves with spiral grooves are suggested and their lubrication characteristics are investigated by numerical analysis. The three-dimensional flow field is obtained by solving the Navier-Stokes equations in dimensionless form, so that the performance variables such as lateral force, friction force and volume flow rate are determined. Also, the lubrication characteristics of spool valves with spiral grooves are compared with those with typical grooves under variable working conditions. It is shown that spool valves with spiral grooves can get better performance in aspect of mitigation of uneven pressure distribution surrounding spool. Moreover, it is found that the minimum distance between spool edges and grooves, the type of spiral groove, and the groove angle have noticeable effect on the lubrication characteristics.
Publisher
한국윤활학회
Issue Date
2012-12
Language
Korean
Citation

한국윤활학회지, v.28, no.6, pp.303 - 314

ISSN
1229-4845
URI
http://hdl.handle.net/10203/255312
Appears in Collection
ME-Journal Papers(저널논문)
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