Methods and apparatus for operating an internal combustion engine
OwnerDavid F. Soulinventor
Life of this patent
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Abstract
A piston ring assembly for an internal combustion engine is provided. The piston ring assembly includes a plurality of seal rings, i.e., a first seal ring and a second seal ring. The seal rings are positioned on at least a portion of a piston crown periphery axially and radially adjacent to each other within the internal combustion engine and at least a portion of the first seal ring at least partially extends over at least a portion of the second seal ring.
Claims20
A piston ring assembly for an internal combustion engine comprising a plurality of seal rings positioned on at least a portion of a piston crown periphery.
A method of operating an internal combustion engine comprising positioning a piston ring assembly on at least a portion of a piston crown periphery, said positioning a piston ring assembly comprises positioning a first seal ring and a second seal ring such that the first seal ring is a first axial distance from the combustion chamber and the second seal ring is a second axial distance from the combustion chamber, the second distance is greater than the first distance, the first seal ring comprising a high temperature material.
An internal combustion engine comprising:
- at least one substantially cylindrical housing;
- and
- a plurality of opposed piston assemblies enclosed within said cylindrical housing, said plurality of opposed piston assemblies comprising a plurality of seal rings, said seal rings positioned on at least a portion of a piston crown periphery.
Dependencies are inferred from the claim text.