Turbofan jet engine having a turbine case cooling valve
US6910851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Jul 20, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbofan jet engine that includes a valve assembly mounted within the engine and in fluid communication with the engine bypass flow passage. The valve assembly includes a valve body that has a fluid inlet port in fluid communication with the bypass flow passage, and two or more fluid outlet ports in fluid communication with two different turbine case sections. The valve is disposed in the valve body and is selectively moveable between a closed position and an open position. In the close position only one fluid outlet port is in substantial fluid communication with the fluid inlet port, to thereby supply cooling air to one turbine case section. In the open position, all of the fluid outlet ports are in substantial fluid communication with the fluid inlet port, to thereby supply cooling air to all of the turbine case sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.