System and method for regulating pressure of pilot air to combustor of gas turbine
US6901761B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2004 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Feb 24, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2900/00014
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A pilot air system for providing pilot air to a combustor of a gas turbine wherein the system includes: an inlet to receive a portion of compressed air discharged by a compressor of the gas turbine, wherein the portion of the compressed air is pilot air; a main passageway coupled to the inlet and providing a passage for the pilot air; an inline throttling valve coupled to the main passageway and metering a pressure of the compressed air in the main passageway; a pilot air compressor in series with the main passageway; a by-pass passageway for the pilot air and arranged in parallel to the main passageway and compressor, wherein the by-pass passageway receives pilot air from the main passageway downstream of the compressor and passes a portion of the compressed pilot air to the main passageway upstream of the compressor; a by-pass throttling valve inline with the by-pass passageway to meter pilot air flowing through said by-pass passageway, and the main passageway is connectable to the combustor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.