Arrangement for the automatic running gap control on a two or multi-stage turbine
US7524164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Sep 7, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/11
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
On a two or multi-stage turbine, expansion rings are provided in all stages at the sides of the rotors for passive, continuous running gap control whose thermal expansion and contraction behavior corresponds to that of the rotors and which are connected to radially moveable upstream and downstream stator vanes (5, 7). The downstream stator vanes are assembled to the upstream stator vanes via a bridge (16; 17, 18) which is axially and circumferentially fixed and located flexibly in the radial direction on the outer casing (10) of the turbine. The stator vanes (6) arranged between the rotor disks are integrally connected to the bridge or, as separate components, held axially and circumferentially on the bridge to take up rolling and tilting moments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.