The influence of inter-ring pressures on piston-ring/liner tribological conjunction
The influence of inter-ring pressures on piston-ring/liner tribological conjunction
The paper 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.
elrod cavitation algorithm, gas blow-by, inter-ring pressure, piston ring lubrication, tribology
154-167
Chong, W.W.F.
bd35fdf8-fa6d-4330-8bac-ae20cc8fc58e
Howell-Smith, S.
1306d5a7-cf45-4058-aec4-032cc16260b0
Teodorescu, M.
10e22073-39f7-41c3-b2b7-2886c2d976f6
Vaughan, N.
9ff44bdb-58e3-4f33-8a40-c024c1f1bc7b
February 2013
Chong, W.W.F.
bd35fdf8-fa6d-4330-8bac-ae20cc8fc58e
Howell-Smith, S.
1306d5a7-cf45-4058-aec4-032cc16260b0
Teodorescu, M.
10e22073-39f7-41c3-b2b7-2886c2d976f6
Vaughan, N.
9ff44bdb-58e3-4f33-8a40-c024c1f1bc7b
Chong, W.W.F., Howell-Smith, S., Teodorescu, M. and Vaughan, N.
(2013)
The influence of inter-ring pressures on piston-ring/liner tribological conjunction.
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 227 (2), .
(doi:10.1177/1350650112461579).
Abstract
The paper 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.
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Published date: February 2013
Keywords:
elrod cavitation algorithm, gas blow-by, inter-ring pressure, piston ring lubrication, tribology
Organisations:
nCATS Group
Identifiers
Local EPrints ID: 353122
URI: http://eprints.soton.ac.uk/id/eprint/353122
ISSN: 1350-6501
PURE UUID: c81bb765-c0f2-477b-a2b3-51826ada1466
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Date deposited: 03 Jun 2013 09:05
Last modified: 14 Mar 2024 14:01
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Contributors
Author:
W.W.F. Chong
Author:
S. Howell-Smith
Author:
M. Teodorescu
Author:
N. Vaughan
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