Device used for sealing piston pin bores of cylinders used in combustion engines comprises a longitudinal cylindrical sealing element with a diameter which enlarges after insertion

摘要

Sealing device comprises a longitudinal cylindrical sealing element (3) with a diameter D which enlarges after insertion into a bearing bore so that the surface of the element lies tight to the surfaces to be covered. Preferred Features: The diameter of the sealing element is enlarged by axial compression, by introducing a pressure medium or by increasing the temperature. The sealing element is made of a rubber-like body with a compression element arranged in central region of the body and impinging the end regions of the body under pressure. The sealing element consists of a cylindrical base body (7) surrounded by a coating (8) made of silicone.