Patent ID: 7591594
Filing Date: 2009-09-22
Classification: F01D,F16C

Abstract:
1. A turbomachine comprising: a high-pressure turbine including a high pressure turbine disk and rotor blades mounted on the high pressure turbine disk, said blades being subject to a flow of hot gas from a combustion chamber, said flow of hot gas defining upstream and downstream directions for said turbomachine; a high-pressure trunnion having an upstream end connected to the high pressure turbine disk and a downstream end extending downstream of said high pressure turbine disk; and a roller bearing that supports the high-pressure trunnion to rotate relative to a stationary support, said bearing comprising rollers, an inner ring and an outer ring, said rollers being inserted between said outer ring and said inner ring, said outer ring being disposed adjacent to the stationary support and said inner ring being disposed adjacent to the high-pressure trunnion, wherein the inner ring extends downstream beyond the downstream end of the high-pressure trunnion to which the inner ring is secured, said inner ring also being provided with an anti-rotation mechanism that prevents said inner ring from rotating relative to the high-pressure trunnion, wherein the rollers are disposed at the end of the inner ring which extends downstream beyond the downstream end of the high-pressure trunnion.