Miniature pressure and film thickness transducers mounted in the cylinder liner of a diesel engine have been used to study the lubrication of piston rings. The method of using the gauges to determine oil starvation in the inlet of the rings is described and results from a working engine are presented. Calculations for both starved and fully flooded rings have been carried out and are compared with the measured results.
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References
1.
CastlemanR. A.‘A hydrodynamical theory of piston ring lubrication’, Physics19367, 364–367.
2.
AllenD. G.DudleyB. R.MiddletonV.ParkerD. A.‘Prediction of cylinder bore oil film thicknesses in two particular engines’, Conference on piston ring scuffing 1975, 107–124 (Instn mech. Engrs, London).
3.
HamiltonG. M.MooreS. L.‘Comparison between measured and calculated thickness of the oil-film lubricating piston rings’, Proc. Instn mech. Engrs1974188, 262–268.
4.
EilonS.SaundersO. A.‘A study of piston ring lubrication’, Proc. Instn mech. Engrs1957171, 427–443.
5.
WingR. D.SaundersO. A.‘Oil film temperature and thickness measurements on the piston rings of a diesel engine’, Proc. Instn mech. Engrs1972186, 1–9.
6.
HamiltonG. M.MooreS. L.‘Discussion on Wing, R. D. and Saunders, O. A.’, Proc. Instn mech. Engrs1972186, D1-9.
7.
HamiltonG. M.MooreS. L.‘Measurement of the oil-film thickness between the piston rings and liner of a small diesel engine’, Proc. Instn mech. Engrs1974188, 253–261.
8.
NealeM. J.‘Discussion on Hamilton, G. M. and Moore, S. L.’, Proc. Instn mech. Engrs1974188, D51-60.
9.
PikeW. C.‘Discussion on Hamilton, G. M. and Moore, S. L.’, Proc. Instn mech. Engrs1974188, D51-60.
10.
BrownS. R.HamiltonG. M.MooreS. L.‘Hydrodynamic pressure under a piston ring’, Nature1975253, 341–342.
11.
BrownS. R.HamiltonG. M.‘Pressure measurement between the rings and cylinder liner of an engine’, Conference on piston ring scuffing 1975, 99–106 (Instn mech. Engrs, London).
12.
ParkerD. A.StaffordJ. V.KendrickM.GrahamN. A.‘Experimental measurements of the quantities necessary to predict piston ring-cylinder bore oil film thickness, and of the oil film thickness itself, in two particular engines’, Conference on piston ring scuffing 1975, 79–98 (Instn mech. Engrs, London).
