The ability of a piston oil ring to conform to liner distortions during engine operation is directly related to its radial stiffness. The ability to conform is also very important for controlling lubricant oil consumption and emissions. This paper describes the procedure utilized to investigate the technical feasibility of using flexible high performance engineering plastics to replace metal as base material for oil rings.Bench tests and engines were used to select and evaluate different types of plastics for wear resistance and structural integrity. Engine test results indicated no structural failures but wear levels were found to be unacceptably high for use in durable heavy duty diesel engines.
Plastic Oil Rings for Diesel Engines: A Preliminary Evaluation
Sae Technical Papers
International Congress & Exposition ; 1996
1996-02-01
Aufsatz (Konferenz)
Englisch
Metals , Pistons , Lubricating oils , Plastics , Wear
Plastic Oil Rings for Diesel Engines: A Preliminary Evaluation
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