Compressor and method of operating it
US5605437A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1994 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Jun 3, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a compressor (1), in particular for a gas turbine, which compressor includes a rotor (3), which is rotatably supported about a compressor center line and possesses at its periphery a plurality of rotor blades (5a-d), and a compressor casing (2), which concentrically surrounds the rotor (3), a radial clearance being provided between the outer ends of the rotor blades (5a-d) and the inner wall of the compressor casing (2), the possibility of a warm start without sacrificing efficiency is achieved by configuring the compressor casing (2) so that it can be heated in order to reduce the fluctuations in the radial clearance and by connecting it to a separate heating appliance (22, 25, 27), which is independent of the operation of the compressor and by means of which the compressor casing can be heated in the case of a warm start.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.