Axial turbine with a variable-geometry stator

Axial turbine with a variable-geometry stator

A stator (11) of a variable-geometry axial turbine (1) for aeronautical applications has an axis (3) and is provided with an annular duct (30) that has a diameter increasing along the axis (3), is delimited radially by an outer surface (27) and by an inner surface (28) and houses an array of airfoil...

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Hauptverfasser: SPANO, ENNIO, SCHIPANI, CLAUDIA, DALLE CRODE, DOMENICO
Format: Patent
Sprache:eng ; fre ; ger
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 SPANO, ENNIO
SCHIPANI, CLAUDIA
DALLE CRODE, DOMENICO
description A stator (11) of a variable-geometry axial turbine (1) for aeronautical applications has an axis (3) and is provided with an annular duct (30) that has a diameter increasing along the axis (3), is delimited radially by an outer surface (27) and by an inner surface (28) and houses an array of airfoil profiles (33); the profiles (33) are rotatable relative to the outer and inner surfaces (27, 28) about respective axes of adjustment (40) incident to the axis (3) of the stator (11) and each have an associated pair of end edges (59, 60) opposite each other and each coupled slidably with an associated shaped zone (66, 67) of the outer and inner surfaces (27, 28), each shaped zone (66, 67) has a form complementary to an ideal surface generated by rotation of the associated end edges (59, 60) about the axis of adjustment (40) so as to maintain a constant clearance between the profiles (33) and the inner and outer surfaces (27, 28)
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the profiles (33) are rotatable relative to the outer and inner surfaces (27, 28) about respective axes of adjustment (40) incident to the axis (3) of the stator (11) and each have an associated pair of end edges (59, 60) opposite each other and each coupled slidably with an associated shaped zone (66, 67) of the outer and inner surfaces (27, 28), each shaped zone (66, 67) has a form complementary to an ideal surface generated by rotation of the associated end edges (59, 60) about the axis of adjustment (40) so as to maintain a constant clearance between the profiles (33) and the inner and outer surfaces (27, 28)</description><edition>7</edition><language>eng ; fre ; ger</language><subject>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</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20040310&amp;DB=EPODOC&amp;CC=EP&amp;NR=1256696A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20040310&amp;DB=EPODOC&amp;CC=EP&amp;NR=1256696A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SPANO, ENNIO</creatorcontrib><creatorcontrib>SCHIPANI, CLAUDIA</creatorcontrib><creatorcontrib>DALLE CRODE, DOMENICO</creatorcontrib><title>Axial turbine with a variable-geometry stator</title><description>A stator (11) of a variable-geometry axial turbine (1) for aeronautical applications has an axis (3) and is provided with an annular duct (30) that has a diameter increasing along the axis (3), is delimited radially by an outer surface (27) and by an inner surface (28) and houses an array of airfoil profiles (33); the profiles (33) are rotatable relative to the outer and inner surfaces (27, 28) about respective axes of adjustment (40) incident to the axis (3) of the stator (11) and each have an associated pair of end edges (59, 60) opposite each other and each coupled slidably with an associated shaped zone (66, 67) of the outer and inner surfaces (27, 28), each shaped zone (66, 67) has a form complementary to an ideal surface generated by rotation of the associated end edges (59, 60) about the axis of adjustment (40) so as to maintain a constant clearance between the profiles (33) and the inner and outer surfaces (27, 28)</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>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB1rMhMzFEoKS1KysxLVSjPLMlQSFQoSyzKTEzKSdVNT83PTS0pqlQoLkksyS_iYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgGGRqZmZpZmjsbGRCgBAHbpKec</recordid><startdate>20040310</startdate><enddate>20040310</enddate><creator>SPANO, ENNIO</creator><creator>SCHIPANI, CLAUDIA</creator><creator>DALLE CRODE, DOMENICO</creator><scope>EVB</scope></search><sort><creationdate>20040310</creationdate><title>Axial turbine with a variable-geometry stator</title><author>SPANO, ENNIO ; 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the profiles (33) are rotatable relative to the outer and inner surfaces (27, 28) about respective axes of adjustment (40) incident to the axis (3) of the stator (11) and each have an associated pair of end edges (59, 60) opposite each other and each coupled slidably with an associated shaped zone (66, 67) of the outer and inner surfaces (27, 28), each shaped zone (66, 67) has a form complementary to an ideal surface generated by rotation of the associated end edges (59, 60) about the axis of adjustment (40) so as to maintain a constant clearance between the profiles (33) and the inner and outer surfaces (27, 28)</abstract><edition>7</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 Axial turbine with a variable-geometry stator
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