An initial investigation of the lubricant condition in the automotive ring zone under cold start conditions
An initial investigation of the lubricant condition in the automotive ring zone under cold start conditions
- Neue Suche nach: Datoo, A.N.G.
- Neue Suche nach: Fox, M.F.
- Neue Suche nach: Datoo, A.N.G.
- Neue Suche nach: Fox, M.F.
Samples of lubricant obtained from the piston ring of a petrol engine under cold start conditions are very different from the sump lubricant condition. Samples from the first operating hour show substantial fuel and water dilution which cause precipitation of additive from the lubrication formulation with multiple phase formation. The physical performance properties of these lubricant samples are drastically changed, e.g., base number drops from 10 to less than 2, anti-oxidancy is reduced and viscometric properties are changed. Implications for short vehicle journeys and temperature distributions within the piston assembly are discussed.
Dokumentinformationen
An initial investigation of the lubricant condition in the automotive ring zone under cold start conditions
Ausgangsuntersuchung des Schmierstoffzustandes in der Kolbenringzone eines Fahrzeugmotors unter Kaltstartbedingungen
Tribological Research and Design for Engineering Systems, Leeds-Lyon Symposium on Tribology, 29 ; 517-522
Tribology Series ; 41
2003
6 Seiten, 6 Bilder, 7 Quellen
Aufsatz (Konferenz)
Englisch
Fahrzeugmotor , Otto-Motor , Kaltstart , Kolbenring , Schmierstoff , Probe , Ölwanne , Kraftstoff , Wasser , Verdünnung , Ausscheidung , Additiv , Oxidationsinhibitor , Viskometer , Temperaturverteilung
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