VARIABLE-PITCH STATOR VANE FOR AN AIRCRAFT TURBINE ENGINE

A variable-pitch stator blade includes an airfoil having a central portion with a first chord and a first skeleton line delimited by a leading edge and a trailing edge. An end portion has a second chord and a second skeleton line delimited by the leading edge and a downstream limit. A skeleton angle...

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Bibliographische Detailangaben
Hauptverfasser:	COCHON, Sébastien Claude, CAVAREC, Mickael, RETIVEAU, Pierre-Hugues Ambroise Maxime Victor
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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Beschreibung
Zusammenfassung:	A variable-pitch stator blade includes an airfoil having a central portion with a first chord and a first skeleton line delimited by a leading edge and a trailing edge. An end portion has a second chord and a second skeleton line delimited by the leading edge and a downstream limit. A skeleton angle at a first length I1 of the first chord is defined by a function G1(I1), and the skeleton angle at a second length I2 of the second chord is defined by a function G2(I2). The absolute value of the average increase A2 of G2′(I2) between the leading edge and the downstream limit is greater than the absolute value of the average increase Al of Gl′(I1) between the leading edge and a point P, wherein the first length I1 corresponds to the total length of the second chord.