Patent ID: 8167315
Filing Date: 2012-05-01
Classification: F04D,F16J

Abstract:
1. A mechanical sealing device, comprising: a first part comprising a first seal element and a first holder element for holding the first seal element, wherein the first seal element forms a first seal surface, an opposite backing surface and an outer peripheral surface, and wherein the first holder element has a support surface and an inner surface; and a second part comprising a second seal element forming a second seal surface, wherein the first part and the second part are rotatable in relation to each other with respect to an axis of rotation so that the first seal surface abuts sealingly the second seal surface in a radial plane with respect to the axis of rotation, wherein an elastomer element is provided between the outer peripheral surface of the first seal element and the inner surface of the first holder element, wherein the opposite backing surface of the first seal element abuts tightly the support surface of the first holder element, wherein the first seal element comprises a surrounding groove, that the elastomer element comprises an annular flange extending inwardly into the groove and that the first holder element comprises a locking means adapted to secure the elastomer element between the outer peripheral surface and the inner surface, wherein the locking means comprises a locking flange abutting the elastomer element, projecting axially from the inner surface and being bent towards the outer peripheral surface, thereby pressing the elastomer element between the outer peripheral surface and the inner surface, and wherein the outer peripheral surface has an inclined surface portion tapering towards the first seal surface.