Divided insert for steam cooled nozzles and method for supporting and separating divided insert
US6742984B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2003 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | May 19, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49343
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pair of hollow elongated leg sections are disposed in one or more of the nozzle vane cavities of a nozzle stage of a gas turbine. Each leg section has an outer wall portion with apertures for impingement-cooling of nozzle wall portions in registration with the outer wall portions. The leg sections may be installed into the cavity separately and support rods support and maintain the leg sections in spaced relation, whereby the designed impingement gap between the outer wall portions of the leg sections and the nozzle wall portions is achieved. The support rods are secured to the inner wall portions of the leg sections by welding or brazing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.