Clearance control system for a compressor shroud assembly
US10962024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Oct 2, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/65
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor shroud assembly is disclosed comprising a dynamically moveable impeller shroud, a static compressor casing, an air piston mounted between said impeller shroud and said compressor casing, and a clearance control system. The air piston effects axial movement of said impeller shroud responsive to a supply of actuating air. The clearance control system regulates the pressure of actuating air in said air piston and comprises a supply conduit having a supply modulating valve and a discharge conduit having a blowoff check valve. The blowoff check valve is set to open at a predetermined differential pressure between pressure of the air piston and pressure of the supply of actuating air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.