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Title: Electrically heated balance piston seal

Abstract

A balance piston seal assembly for a balance piston of a compressor is provided. The balance piston seal assembly may include a balance piston seal configured to be disposed about the balance piston such that an inner radial surface of the balance piston seal and an outer radial surface of the balance piston define a radial clearance therebetween. The balance piston seal assembly may also include a plurality of heaters in thermal communication with the balance piston seal and configured to heat and thermally expand the balance piston seal and thereby increase a radial length of the radial clearance.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Dresser-Rand Co., Olean, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1637862
Patent Number(s):
10584709
Application Number:
15/072,723
Assignee:
Dresser-Rand Company (Olean, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
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:  
FE0000493
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/17/2016
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Peer, David J., Brown, Paul Morrison, Wiederien, Richard J., Lupkes, Kirk Ryan, Massey, Brian David, Sorokes, James M., and Kuzdzal, Mark J. Electrically heated balance piston seal. United States: N. p., 2020. Web.
Peer, David J., Brown, Paul Morrison, Wiederien, Richard J., Lupkes, Kirk Ryan, Massey, Brian David, Sorokes, James M., & Kuzdzal, Mark J. Electrically heated balance piston seal. United States.
Peer, David J., Brown, Paul Morrison, Wiederien, Richard J., Lupkes, Kirk Ryan, Massey, Brian David, Sorokes, James M., and Kuzdzal, Mark J. Tue . "Electrically heated balance piston seal". United States. https://www.osti.gov/servlets/purl/1637862.
@article{osti_1637862,
title = {Electrically heated balance piston seal},
author = {Peer, David J. and Brown, Paul Morrison and Wiederien, Richard J. and Lupkes, Kirk Ryan and Massey, Brian David and Sorokes, James M. and Kuzdzal, Mark J.},
abstractNote = {A balance piston seal assembly for a balance piston of a compressor is provided. The balance piston seal assembly may include a balance piston seal configured to be disposed about the balance piston such that an inner radial surface of the balance piston seal and an outer radial surface of the balance piston define a radial clearance therebetween. The balance piston seal assembly may also include a plurality of heaters in thermal communication with the balance piston seal and configured to heat and thermally expand the balance piston seal and thereby increase a radial length of the radial clearance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {3}
}

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Works referenced in this record:

Centrifugal compressor with a splitter shroud in flow path
patent, November 1977


Turbine interstage sealing arrangement
patent, April 2001


Thermally regulated segmented seal
patent, June 1993