Rotor end piece
US7192256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | May 24, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a rotor end piece (1) for rotors (2) of thermal turbomachines with a circumferential slot (3), consisting of two end piece halves (4, 4′) having side faces (5, 5′) opposite one another in the installed state and of a wedge (6) which is pushed in between them and which, in the installed state, is anchored in the side faces (5, 5′) of the end piece halves (4, 4′) in a form-fitting manner, the rotor end piece (1) being arranged in the axial direction of the rotor (2) between two moving blades (7, 7′). It is characterized in that each of the end piece halves (4, 4′) is fastened in the axial direction of the rotor (2) to the two adjacent moving blades (7, 7′) by means of one interlocking connection (8, 8′, 9, 9′) each. These four interlocking connections (8, 8′, 9, 9′), instead of the rotor (2), now absorb the axial forces which are caused by the centrifugal force and the caulked wedge (6). In this way, disturbing rotor vibrations are advantageously avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.