NDLI: Measurement of lubricant flow in a gasoline engine

Content Provider	Springer Nature Link
Author	Stark, M.S. Gamble, R.J. Hammond, C.J. Gillespie, H.M. Smith, J.R. Lindsay Nagatomi, E. Priest, M. Taylor, C.M. Taylor, R.I. Waddington, D.J.
Copyright Year	2005
Abstract	A residence time of approximately 60 s for lubricant in the piston ring pack of a gasoline engine, running at 1500 rpm, 50% throttle, has been measured by adding a hydrocarbon marker to the oil in the sump and monitoring its build up in oil extracted from the top ring groove. Comparison of the rate of increase of oxidised products in the sump with the level of oxidation in the ring pack allows a rate of flow of oil entering the ring pack from the sump to be calculated as approximately 0.4 cm$^{3}$ min$^{−1 }$cylinder$^{−1}$, with at least 88% returning to the sump and the remainder lost into the combustion chamber. The volume of oil in the ring pack was determined as approximately 0.4 cm$^{3 }$cylinder$^{−1}$, approximately one quarter of the free volume available between the top of the oil control ring and the top piston ring.
Starting Page	163
Ending Page	168
Page Count	6
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	19
Issue Number	3
e-ISSN	15732711
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2005-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	piston ring pack lubrication residence time flow rate gasoline engine Physical Chemistry Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

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