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Title: Regenerator cross arm seal assembly

Abstract

This patent describes improvement in a gas turbine engine having block means defining a pressurized air passage and a hot exhaust gas passage and a cross arm partition separating portions of the air and the exhaust passages, a regenerator disc on the block means intersecting the air and the exhaust passages and rotatable to transfer heat from the exhaust gas to the pressurized air and including an inboard surface, and rim seal means between the disc inboard surface and the block means operative to prevent pressurized air and exhaust gas leakage around the periphery of the disc. An improved cross arm seal assembly which comprises a platform generally coextensive with the cross arm partition disposed between the latter and the disc inboard surface, a porous and compliant support layer on a surface of the platform facing the disc inboard surface, a seal and wear layer on the support layer defining a barrier to gas passage and sealingly engaging the disc inboard surface, dike means between the seal and wear layer and the platform preventing communication through the support layer.

Inventors:
Publication Date:
OSTI Identifier:
5756305
Patent Number(s):
US 4720969; A
Application Number:
PPN: US 6-311334A
Assignee:
Dept. of Energy, Washington, DC (USA)
Resource Type:
Patent
Resource Relation:
Patent File Date: 15 Oct 1981
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; GAS TURBINE ENGINES; REGENERATORS; SEALS; EXHAUST GASES; ENGINES; FLUIDS; GASEOUS WASTES; GASES; HEAT ENGINES; INTERNAL COMBUSTION ENGINES; WASTES; 330103* - Internal Combustion Engines- Turbine

Citation Formats

Jackman, A V. Regenerator cross arm seal assembly. United States: N. p., 1988. Web.
Jackman, A V. Regenerator cross arm seal assembly. United States.
Jackman, A V. 1988. "Regenerator cross arm seal assembly". United States.
@article{osti_5756305,
title = {Regenerator cross arm seal assembly},
author = {Jackman, A V},
abstractNote = {This patent describes improvement in a gas turbine engine having block means defining a pressurized air passage and a hot exhaust gas passage and a cross arm partition separating portions of the air and the exhaust passages, a regenerator disc on the block means intersecting the air and the exhaust passages and rotatable to transfer heat from the exhaust gas to the pressurized air and including an inboard surface, and rim seal means between the disc inboard surface and the block means operative to prevent pressurized air and exhaust gas leakage around the periphery of the disc. An improved cross arm seal assembly which comprises a platform generally coextensive with the cross arm partition disposed between the latter and the disc inboard surface, a porous and compliant support layer on a surface of the platform facing the disc inboard surface, a seal and wear layer on the support layer defining a barrier to gas passage and sealingly engaging the disc inboard surface, dike means between the seal and wear layer and the platform preventing communication through the support layer.},
doi = {},
url = {https://www.osti.gov/biblio/5756305}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 26 00:00:00 EST 1988},
month = {Tue Jan 26 00:00:00 EST 1988}
}