Lubricating oil consumption at low temperatures

• Autorzy: Iskra A. , Krzymień A. , Krzymień P.
• Języki publikacji: EN

Abstrakty

EN

The problem of lubricating oil consumption still seems to be important one at least because of the use of DPFs in exhaust systems of diesels. Even a minor consumption can be a source of particulate matter that blocksfilters. On the other hand formation of oil film parameters that guarantee minimum oil consumption could lead to the increased friction losses. Ali these remarks relate to the nominal temperature ofoperation. Situation can differ at temperature of cold start. Presented paper deals the problem of oil consumption at lower temperatures. The observation concerning friction losses under these conditions are mentioned as well. Parameters influencing the lubricating oil consumption, oil consumption at nominal temperature of engine run, oil consumption at low temperature are presented in the paper. As well course of oil film thickness, layer thickness and friction force for upper compression ring at engine nominal temperature of operation, course of oil film thickness, layer thickness and friction force for upper compression ring at lower engine run temperature, ring face wetting level at nominal temperature of operation, ring face wetting level at lower temperature of operation, lubricating oil consumption and friction losses generated by ring pack of single cylinder are subject of the paper.

Słowa kluczowe

EN

piston rings; oil film; lubricating oil consumption; friction losses

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2009
• Tom: Vol. 16, No. 4
• Strony: 163--170
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Iskra A.

autor

Krzymień A.

autor

Krzymień P.

• Poznan University of Technology Institute of Combustion Engines and Transport Piotrowo 3, 60-965 Poznan tel: [phone],fax: [phone],

Bibliografia

• [1] Iskra, A., Studium konstrukcji i funkcjonalności pierścieni w grupie tłokowo-cylindrowej, Wydawnictwo Politechniki Poznańskiej, pp. 1-334, Poznań 1996.
• [2] Krzymień, A., Krzymień, P., Wpływ rodzaju oleju na straty tarcia pierścieni tłokowych w 4-suwowym silniku samochodowym w warunkach rozruchu, Eksploatacja Silników Spalinowych. Problemy rozruchu silników spalinowych, Z. 6, pp. 87-92, Szczecin 2002.
• [3] Priebsch, H. H., Herbst, H. M., Simulation of Effects of Piston Ring Parameters on Ring Movement, Friction, Blow-by and LOC, MTZ, pp. 67-72, November 1999.