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US 10,865,669 B2Granted
Run out tolerant reciprocating cylinder sleeve seal carbon scraper
AssigneeDana Automotive Systems Group, LLC
InventorsThomas G. Heller, Alexander S. Williamson
Life of this patent
Estimating the term…
Abstract
A reciprocating cylinder seal assembly (10, 10′) has an elastomeric seal, where separate inner (16, 16′) and an outer (18, 18′) valve seal retainers are located within the reciprocating cylinder seal assembly. The reciprocating cylinder seal assembly (10, 10′) better controls radial run out than past seals in reciprocating cylinder engines. Further, the reciprocating cylinder seal assembly may have a scraper (42′) that is in contact with the outer valve seal retainer (18′).
Claims15
A reciprocating cylinder seal assembly, comprising:
- an elastomeric seal;
- characterized by the elastomeric seal comprising separate inner and outer valve seal retainers, wherein the inner valve seal retainer is disposed within the elastomeric seal and the outer valve seal retainer is disposed on a radially outer surface of the elastomeric seal,
- said elastomeric seal further defining a space in which a piston ring-like scraper seal resides and rotates therein.
Dependencies are inferred from the claim text.