Patent ID: 6325383
Filing Date: 2001-12-04
Classification: F16J

Abstract:
A sealing arrangement comprising:a first machine part having an outer sealing surface having a diameter;a second machine part that is movable relative to the first machine part, the second machine part containing a groove having a base surface having a diameter, the base surface providing the second machine part with an axially extending inner surface that is concentric with the sealing surface of the first machine part;a sealing ring that is enclosed by the first and second machine parts, the sealing ring comprising a radially internal retaining part having an inner diameter, a external sealing part having an outer sealing surface, and a resilient connecting part joining these two, between the concentric sealing surfaces of which the inner, base sealing surface, is immovable relative to the sealing ring and has a greater diameter (D.sub.N) than the inner diameter (D.sub.H) of the retaining part in its unstressed state, and the outer, opposing sealing surface, which is movable relative to the sealing ring, is acted upon under prestressing by the outer circumference of the sealing part, wherein the prestressing of the sealing part is essentially generated by the elongation of the retaining part that is sustained by the relative difference between the inner diameter (D.sub.H) of the retaining part and the diameter (D.sub.N) of the inner, base sealing surface of the groove.