Gasket device for the bearing of a turbomachine, comprising two elastic seals

Abstract

A gasket device for a turbomachine bearing, configured to separate an oil enclosure and an air enclosure from the turbomachine, including a segmenting gasket for providing most of tightness of the device and a supporting jacket for holding the segmented gasket. The supporting jacket includes a first groove accommodating a first elastic seal for centering the supporting jacket. The supporting jacket includes a second groove accommodating a second elastic seal for centering the supporting jacket, or aligning the axis of the supporting jacket with the axis of the rotor.

1 - 10 . (canceled) 
     
     
         11 . A gasket device for a turbomachine bearing, the bearing including a balling bearing mounted between a sleeve integral with a shaft and a case, the sleeve including a rotating surface and the case including a case element acting as a cover for the gasket device, the gasket device configured to separate an oil enclosure from the balling bearing and an air enclosure from the turbomachine, the gasket device comprising:
 a segmented gasket, mounted in association with the rotating surface of the sleeve, for providing most of tightness of the device;   a supporting jacket for holding the segmented gasket, which jacket is mounted between the sleeve and the case element, the support jacket including a first groove accommodating a first elastic seal for centering the supporting jacket over the case element;   wherein the supporting jacket includes a second groove accommodating a second elastic seal for centering the supporting jacket over the case element.   
     
     
         12 . The device according to  claim 11 , wherein the first and second grooves are identical. 
     
     
         13 . The device according to  claim 11 , wherein the first and second elastic seals have same dimensions. 
     
     
         14 . The device according to  claim 11 , wherein the first and second elastic seals are O-rings. 
     
     
         15 . The device according to  claim 11 , wherein the first and second grooves are spaced apart from each other by a distance equal to or higher than the width of at least one of the first and second grooves. 
     
     
         16 . The device according to  claim 11 , wherein the first and second elastic seals are made of an elastomeric material. 
     
     
         17 . The device according to  claim 11 , wherein the rotating surface of the sleeve is extended by a cylindrical surface, and wherein the supporting jacket includes a labyrinth oil outlet system in relation with the cylindrical surface. 
     
     
         18 . The device according to  claim 11 , wherein the segmented gasket includes a sealing ring including a set of one or more carbon segments. 
     
     
         19 . The device according to  claim 18 , wherein the one or more carbon segments are held together by a circumferential spring and/or pressed against the supporting jacket by one or more axial springs pressing on a stop joint. 
     
     
         20 . A turbomachine including a gasket device according to  claim 11 .