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On the effective length of the top piston ring involved in hydrodynamic lubrication
Author(s) -
D'agostino V.,
Della Valle S.,
Ruggiero A.,
Senatore A.
Publication year - 2005
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010170306
Subject(s) - engineering , lubrication , mechanical engineering , library science , computer science
This paper describes a simple analytical model for top piston ring lubrication. The model is constructed using the open‐end boundary condition hypothesis, with an assumption of minimum hydrodynamic pressure in the effective ring length equal to the saturation pressure. The analysis confirms that not all of the ring length is involved in the case of hydrodynamic lubrication, and the effective length is found to be less than 40–50% under some operating conditions. The results are in agreement with previous investigations.