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Title: Wheelspace windage cover plate for turbine

Abstract

Windage cover plates are secured between the wheels and spacer of a turbine rotor to prevent hot flow path gas ingestion into the wheelspace cavities. Each cover plate includes a linear, axially extending body curved circumferentially with a radially outwardly directed wall at one axial end. The wall defines a axially opening recess for receiving a dovetail lug. The cover plate includes an axially extending tongue received in a circumferential groove of the spacer. The cover plate is secured with the tongue in the groove and dovetail lug in the recess. Lap joints between circumferentially adjacent cover plates are provided.

Inventors:
 [1]
  1. (Ballston Lake, NY)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874966
Patent Number(s):
6499945
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
wheelspace; windage; cover; plate; turbine; plates; secured; wheels; spacer; rotor; prevent; hot; flow; path; gas; ingestion; cavities; linear; axially; extending; curved; circumferentially; radially; outwardly; directed; wall; axial; defines; recess; receiving; dovetail; lug; tongue; received; circumferential; groove; lap; joints; adjacent; provided; flow path; axially extending; /416/

Citation Formats

Lathrop, Norman Douglas. Wheelspace windage cover plate for turbine. United States: N. p., 2002. Web.
Lathrop, Norman Douglas. Wheelspace windage cover plate for turbine. United States.
Lathrop, Norman Douglas. Tue . "Wheelspace windage cover plate for turbine". United States. https://www.osti.gov/servlets/purl/874966.
@article{osti_874966,
title = {Wheelspace windage cover plate for turbine},
author = {Lathrop, Norman Douglas},
abstractNote = {Windage cover plates are secured between the wheels and spacer of a turbine rotor to prevent hot flow path gas ingestion into the wheelspace cavities. Each cover plate includes a linear, axially extending body curved circumferentially with a radially outwardly directed wall at one axial end. The wall defines a axially opening recess for receiving a dovetail lug. The cover plate includes an axially extending tongue received in a circumferential groove of the spacer. The cover plate is secured with the tongue in the groove and dovetail lug in the recess. Lap joints between circumferentially adjacent cover plates are provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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