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Title: 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:
 [1];  [2]
  1. (Winter Springs, FL)
  2. (Oviedo, FL)
Issue Date:
Research Org.:
Westinghouse Electric Corp
OSTI Identifier:
873925
Patent Number(s):
6273683
Assignee:
Siemens Westinghouse Power Corporation (Orlando, FL) ORNL
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 = {2001},
month = {1}
}

Patent:

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