skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Heat shield for pressure casing

Abstract

A compressor may include a casing defining a discharge cavity and a seal cavity. A rotary shaft may be disposed in the casing, and a shaft seal assembly may be disposed in the seal cavity and about the rotary shaft. An impeller may be coupled with and configured to be driven by the rotary shaft. A balance piston may be integral with the impeller and may define the discharge cavity and the seal cavity. A balance piston seal may be disposed about the balance piston such that the balance piston seal and the balance piston define a radial clearance therebetween. The radial clearance may be configured to provide fluid communication from the impeller to the discharge cavity. A heat shield may be disposed in the discharge cavity, and may be configured to prevent the conduction of heat from the discharge cavity to the seal cavity via the casing.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1503303
Patent Number(s):
10208768
Application Number:
15/075,299
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: 2016 Mar 21
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Peer, David J., Taylor, David Andrew, Massey, Brian David, Lupkes, Kirk Ryan, Wisler, Scott David, Sorokes, James M., and Kuzdzal, Mark J. Heat shield for pressure casing. United States: N. p., 2019. Web.
Peer, David J., Taylor, David Andrew, Massey, Brian David, Lupkes, Kirk Ryan, Wisler, Scott David, Sorokes, James M., & Kuzdzal, Mark J. Heat shield for pressure casing. United States.
Peer, David J., Taylor, David Andrew, Massey, Brian David, Lupkes, Kirk Ryan, Wisler, Scott David, Sorokes, James M., and Kuzdzal, Mark J. Tue . "Heat shield for pressure casing". United States. https://www.osti.gov/servlets/purl/1503303.
@article{osti_1503303,
title = {Heat shield for pressure casing},
author = {Peer, David J. and Taylor, David Andrew and Massey, Brian David and Lupkes, Kirk Ryan and Wisler, Scott David and Sorokes, James M. and Kuzdzal, Mark J.},
abstractNote = {A compressor may include a casing defining a discharge cavity and a seal cavity. A rotary shaft may be disposed in the casing, and a shaft seal assembly may be disposed in the seal cavity and about the rotary shaft. An impeller may be coupled with and configured to be driven by the rotary shaft. A balance piston may be integral with the impeller and may define the discharge cavity and the seal cavity. A balance piston seal may be disposed about the balance piston such that the balance piston seal and the balance piston define a radial clearance therebetween. The radial clearance may be configured to provide fluid communication from the impeller to the discharge cavity. A heat shield may be disposed in the discharge cavity, and may be configured to prevent the conduction of heat from the discharge cavity to the seal cavity via the casing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {2}
}

Patent:

Save / Share: