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Title: Compliant high temperature seals for dissimilar materials

Abstract

A high temperature, gas-tight seal is formed by utilizing one or more compliant metallic toroidal ring sealing elements, where the applied pressure serves to activate the seal, thus improving the quality of the seal. The compliant nature of the sealing element compensates for differences in thermal expansion between the materials to be sealed, and is particularly useful in sealing a metallic member and a ceramic tube art elevated temperatures. The performance of the seal may be improved by coating the sealing element with a soft or flowable coating such as silver or gold and/or by backing the sealing element with a bed of fine powder. The material of the sealing element is chosen such that the element responds to stress elastically, even at elevated temperatures, permitting the seal to operate through multiple thermal cycles.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Fogelsville, PA)
  2. (Laurys Station, PA)
  3. (Boalsburg, PA)
  4. (Salt Lake City, UT)
Issue Date:
Research Org.:
Air Products and Chemicals, Inc. (Allentown, PA)
OSTI Identifier:
874051
Patent Number(s):
6302402
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA) NETL
DOE Contract Number:  
FC26-98FT40343
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
compliant; temperature; seals; dissimilar; materials; gas-tight; seal; formed; utilizing; metallic; toroidal; sealing; elements; applied; pressure; serves; activate; improving; quality; nature; element; compensates; differences; thermal; expansion; sealed; useful; ceramic; tube; elevated; temperatures; performance; improved; coating; soft; flowable; silver; gold; andor; bed; fine; powder; material; chosen; responds; stress; elastically; permitting; operate; multiple; cycles; thermal expansion; elevated temperature; fine powder; dissimilar materials; sealing element; gas-tight seal; /277/

Citation Formats

Rynders, Steven Walton, Minford, Eric, Tressler, Richard Ernest, and Taylor, Dale M. Compliant high temperature seals for dissimilar materials. United States: N. p., 2001. Web.
Rynders, Steven Walton, Minford, Eric, Tressler, Richard Ernest, & Taylor, Dale M. Compliant high temperature seals for dissimilar materials. United States.
Rynders, Steven Walton, Minford, Eric, Tressler, Richard Ernest, and Taylor, Dale M. Mon . "Compliant high temperature seals for dissimilar materials". United States. https://www.osti.gov/servlets/purl/874051.
@article{osti_874051,
title = {Compliant high temperature seals for dissimilar materials},
author = {Rynders, Steven Walton and Minford, Eric and Tressler, Richard Ernest and Taylor, Dale M.},
abstractNote = {A high temperature, gas-tight seal is formed by utilizing one or more compliant metallic toroidal ring sealing elements, where the applied pressure serves to activate the seal, thus improving the quality of the seal. The compliant nature of the sealing element compensates for differences in thermal expansion between the materials to be sealed, and is particularly useful in sealing a metallic member and a ceramic tube art elevated temperatures. The performance of the seal may be improved by coating the sealing element with a soft or flowable coating such as silver or gold and/or by backing the sealing element with a bed of fine powder. The material of the sealing element is chosen such that the element responds to stress elastically, even at elevated temperatures, permitting the seal to operate through multiple thermal cycles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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