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"Nozzle Interstage Seal For Steam Turbines"
Abstract: A seal between the inner ring (34) of a diaphragm nozzle segment (35) and the periphery of a rotor (16) in a steam turbine includes a honeycomb structure (40) brazed onto the radial inner surface of the inner ring segment. The labyrinth teeth (46) on the rotor cut or rub into the surface of the honeycomb structure, forming a seal (36). The honeycomb structure is preferably a cobalt-based nickel alloy brazed to the inner ring having having multi-sided cells opening radially inwardly toward the rotor. The seal precludes or minimizes steam leakage flow between the high pressure upstream flow region and the downstream lower pressure region on opposite sides of the nozzle/rotor interface.
Notices, Deadlines & Correspondence
Patent Information
Applicants
General Electric Company
Inventors
1. BURDGICK Steven Sebastian
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 893-del-2004-abstratct.pdf | 2011-08-20 |
| 1 | 893-del-2004-priority doucument.pdf | 2011-08-20 |
| 2 | 893-del-2004-assignment.pdf | 2011-08-20 |
| 2 | 893-del-2004-form5.pdf | 2011-08-20 |
| 3 | 893-del-2004-form3.pdf | 2011-08-20 |
| 3 | 893-del-2004-claims.pdf | 2011-08-20 |
| 4 | 893-del-2004-form2.pdf | 2011-08-20 |
| 4 | 893-del-2004-correspondence.pdf | 2011-08-20 |
| 5 | 893-del-2004-description.pdf | 2011-08-20 |
| 5 | 893-del-2004-form1.pdf | 2011-08-20 |
| 6 | 893-del-2004-drawings.pdf | 2011-08-20 |
| 7 | 893-del-2004-description.pdf | 2011-08-20 |
| 7 | 893-del-2004-form1.pdf | 2011-08-20 |
| 8 | 893-del-2004-correspondence.pdf | 2011-08-20 |
| 8 | 893-del-2004-form2.pdf | 2011-08-20 |
| 9 | 893-del-2004-claims.pdf | 2011-08-20 |
| 9 | 893-del-2004-form3.pdf | 2011-08-20 |
| 10 | 893-del-2004-form5.pdf | 2011-08-20 |
| 10 | 893-del-2004-assignment.pdf | 2011-08-20 |
| 11 | 893-del-2004-priority doucument.pdf | 2011-08-20 |
| 11 | 893-del-2004-abstratct.pdf | 2011-08-20 |