UNIT FOR MACHINE SHAFT END SEAL (VERSIONS) Russian patent published in 2004 - IPC

FIELD: power mechanical engineering; positive-displacement pneumatic and hydraulic machines.

SUBSTANCE: proposed unit of end seal of shaft is provided with sealing ring which may be mounted on shaft or in fixed body depending on version of invention. Sealing ring forms surface being sealed and is engageable with hold-down member over this surface. Hold-down member is made as part of bellows or integral with it. Bellows and hold-down member are made from aluminum alloy. Surface of sealing ring being sealed and mating surface of hold-down member are provided with ceramic coats.

EFFECT: simplified construction; enhanced reliability and durability.

3 cl, 2 dwg