Seal cooling apparatus

Seal cooling apparatus

An improved seal cooling apparatus is provided for use in a gas turbine engine. In a particular embodiment, this apparatus includes means for deriving conditioning air from air discharged from the compressor diffuser and directing this air onto the seal stator to improve its thermal response. The ap...

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Hauptverfasser: NAPOLI, PHILLIP D, PATTERSON, WILLIAM R
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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creator NAPOLI
PHILLIP D
PATTERSON
WILLIAM R
description An improved seal cooling apparatus is provided for use in a gas turbine engine. In a particular embodiment, this apparatus includes means for deriving conditioning air from air discharged from the compressor diffuser and directing this air onto the seal stator to improve its thermal response. The apparatus also includes means to inject a portion of the conditioning air into a cavity forward of the seal to purge the region and prevent zero airflow conditions during engine operation for the purpose of discouraging overheating of a portion of the compressor rotor. A portion of the conditioning air from the cavity is subsequently directed to flow through and thereby cool the seal.
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In a particular embodiment, this apparatus includes means for deriving conditioning air from air discharged from the compressor diffuser and directing this air onto the seal stator to improve its thermal response. The apparatus also includes means to inject a portion of the conditioning air into a cavity forward of the seal to purge the region and prevent zero airflow conditions during engine operation for the purpose of discouraging overheating of a portion of the compressor rotor. 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In a particular embodiment, this apparatus includes means for deriving conditioning air from air discharged from the compressor diffuser and directing this air onto the seal stator to improve its thermal response. The apparatus also includes means to inject a portion of the conditioning air into a cavity forward of the seal to purge the region and prevent zero airflow conditions during engine operation for the purpose of discouraging overheating of a portion of the compressor rotor. A portion of the conditioning air from the cavity is subsequently directed to flow through and thereby cool the seal.</description><subject>BLASTING</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1985</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBALTk3MUUjOz8_JzEtXSCwoSCxKLCkt5mFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8aHBJqamJuYWlo7GhFUAACRuIPw</recordid><startdate>19851126</startdate><enddate>19851126</enddate><creator>NAPOLI; PHILLIP D</creator><creator>PATTERSON; WILLIAM R</creator><scope>EVB</scope></search><sort><creationdate>19851126</creationdate><title>Seal cooling apparatus</title><author>NAPOLI; PHILLIP D ; PATTERSON; WILLIAM R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4554789A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1985</creationdate><topic>BLASTING</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>NAPOLI; PHILLIP D</creatorcontrib><creatorcontrib>PATTERSON; WILLIAM R</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAPOLI; PHILLIP D</au><au>PATTERSON; WILLIAM R</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Seal cooling apparatus</title><date>1985-11-26</date><risdate>1985</risdate><abstract>An improved seal cooling apparatus is provided for use in a gas turbine engine. In a particular embodiment, this apparatus includes means for deriving conditioning air from air discharged from the compressor diffuser and directing this air onto the seal stator to improve its thermal response. The apparatus also includes means to inject a portion of the conditioning air into a cavity forward of the seal to purge the region and prevent zero airflow conditions during engine operation for the purpose of discouraging overheating of a portion of the compressor rotor. A portion of the conditioning air from the cavity is subsequently directed to flow through and thereby cool the seal.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record>
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subjects BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
title Seal cooling apparatus
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