Method and a device in a rotating machine
US5330320A · kind A · utility
14Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1993 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Mar 31, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and a device for controlling the blade tip clearance in a rotating machine where the machine comprises a turbine part and a compressor part separate from the turbine part and the stator housing of the turbine part is formed with a stator cone. The invention is characterized in that one or more bladed turbine discs during a non-steady operation, such as start-up, stop and load changes, are moved out of the stator cone whereby the blade tip clearance is increased and that the turbine discs during continuous operation are moved into the stator cone such that the blade top clearance is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.