Patent ID: 6695315
Filing Date: 2004-02-24
Classification: F16J

Abstract:
A single seal for the sealing of a rotary shaft extending through a wall, said single seal comprising, for being mounted on a wall , a flange in order to seal off a chamber inside the wall against a rotary shaft and towards the exterior, comprising an outer sealing ring (1) and an inner sealing ring (2), said sealing rings being in sliding and sealing contact with each other, the outer sealing ring (1) being fastened to the flange (12) and the inner sealing ring (2) being fastened to an axially displaceable sleeve (8), said sleeve (8) being for affixing to and rotating with the shaft and extending through the wall and the flange (12), and a spring device (5) for arrangement outside the wall and providing a force for increasing the contact between the sealing rings (1, 2), characterised in that said spring device comprises an inner fastening ring (4) affixed to the sleeve (8), an outer fastening ring (6) for affixing to the shaft, and tension springs (5) and drive pins (14) between the inner and the outer fastening rings (4, 6).