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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Bibliographische Detailangaben
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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Beschreibung
Zusammenfassung:	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)