The influence of inter-ring pressures on piston-ring/liner tribological conjunction

被引：24

作者：

Chong, W. W. F. ^{[1
]}

Howell-Smith, S. ^{[2
]}

Teodorescu, M. ^{[3
,4
]}

Vaughan, N. D. ^{[4
]}

机构：

[1] Univ Loughborough, Wolfson Sch Mech & Mfg Engn, Loughborough, Leics, England

[2] Capricorn Automot Ltd, Basingstoke, Hants, England

[3] Univ Calif Santa Cruz, Baskin Sch Engn, Santa Cruz, CA 95064 USA

[4] Cranfield Univ, Sch Engn, Cranfield MK43 0AL, Beds, England

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY | 2013年 / 227卷 / J2期

基金：

英国工程与自然科学研究理事会;

关键词：

Elrod cavitation algorithm; gas blow-by; inter-ring pressure; piston ring lubrication; tribology; RING LUBRICATION;

D O I：

10.1177/1350650112461579

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The article proposes a mathematical model, which predicts the frictional performance of an internal combustion engine compression ring in the vicinity of the top dead center region. It accounts for the blow-by induced inter-ring pressures drop and for the cavitation region at the trailing edge of the contact. The model is used to predict the behaviour of both new and worn compression rings for wide open throttle operating conditions. It is shown that the wear of the ring profile increases the oil film thickness decrease the frictional losses and significantly reduces the extent of the cavitation region.

引用

页码：154 / 167

页数：14