Impeller shroud with pneumatic piston for clearance control in a centrifugal compressor
US10309409B2 · kind B2 · utility
6Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Nov 6, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.