Turbine blade platform seal
Abstract
A rotating blade group 90 for a turbo-machine having an improved device for sealing the gap 110 between the edges 112,114 of adjacent blade platforms 96,104. The gap 110 between adjacent blades 92,100 is sealed by a seal pin 20 its central portion 110 and by a seal plate 58,60 at each of the front 54 and rear 56 portions. The seal plates 58,60 are inserted into corresponding grooves 62,64 formed in the adjacent edges 112,114 of adjoining blades 92,100 and held in place by end plates 40,42. The end of the seal plates 58,60 may be chamfered 78,80 to improve the seal against the end plate 40,42. The seal pin 20 provides the required damping between the blades 92,100 and the seal plates 58,60 provide improved sealing effectiveness.
- Inventors:
-
- Winter Springs, FL
- Oviedo, FL
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 873925
- Patent Number(s):
- 6273683
- Assignee:
- Siemens Westinghouse Power Corporation (Orlando, FL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- DOE Contract Number:
- FC21-95MC32267
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- turbine; blade; platform; seal; rotating; 90; turbo-machine; improved; device; sealing; gap; 110; edges; 112; 114; adjacent; platforms; 96; 104; blades; 92; 100; sealed; 20; central; portion; plate; 58; 60; front; 54; rear; 56; portions; plates; inserted; corresponding; grooves; 62; 64; formed; adjoining; held; 40; 42; chamfered; 78; 80; improve; provides; required; damping; provide; effectiveness; rotating blade; provide improved; turbine blade; central portion; adjacent blades; seal plate; corresponding groove; improved sealing; improved seal; improved device; provide improve; platform seal; blade platform; blade platforms; /416/277/
Citation Formats
Zagar, Thomas W, and Schiavo, Anthony L. Turbine blade platform seal. United States: N. p., 2001.
Web.
Zagar, Thomas W, & Schiavo, Anthony L. Turbine blade platform seal. United States.
Zagar, Thomas W, and Schiavo, Anthony L. Mon .
"Turbine blade platform seal". United States. https://www.osti.gov/servlets/purl/873925.
@article{osti_873925,
title = {Turbine blade platform seal},
author = {Zagar, Thomas W and Schiavo, Anthony L},
abstractNote = {A rotating blade group 90 for a turbo-machine having an improved device for sealing the gap 110 between the edges 112,114 of adjacent blade platforms 96,104. The gap 110 between adjacent blades 92,100 is sealed by a seal pin 20 its central portion 110 and by a seal plate 58,60 at each of the front 54 and rear 56 portions. The seal plates 58,60 are inserted into corresponding grooves 62,64 formed in the adjacent edges 112,114 of adjoining blades 92,100 and held in place by end plates 40,42. The end of the seal plates 58,60 may be chamfered 78,80 to improve the seal against the end plate 40,42. The seal pin 20 provides the required damping between the blades 92,100 and the seal plates 58,60 provide improved sealing effectiveness.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}