Method for determining angular positions of multiple compressor guide vanes

A method for determining the angular positions of multiple compressor guide vanes (10) comprising: (a) measuring the positions of at least two points (P1, Q1) on the circumference of the actuating ring (30) by at least two linear position sensors (70, 80) fixed on the compressor casing (40) and poin...

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Bibliographische Detailangaben
Hauptverfasser:	WALLSTAB THOMAS, LAU OW, REN CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PHYSICS STEAM ENGINES TESTING WEAPONS
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Beschreibung
Zusammenfassung:	A method for determining the angular positions of multiple compressor guide vanes (10) comprising: (a) measuring the positions of at least two points (P1, Q1) on the circumference of the actuating ring (30) by at least two linear position sensors (70, 80) fixed on the compressor casing (40) and pointing at the actuating ring (30) vertically at a time when the actuating ring (30) deviates from its original position where the ring center coincides with the casing center; (b) calculating the ring center offset (a1, b1) based on the measured positions of the at least two points (P1, Q1) and the radius (r) of the actuating ring (30); (c) measuring the angle (alpha x) of one of the multiple guide vane at the same time when measuring the positions of the at least two points (P1, Q1); and (d) calculating the angles of the multiple guide vanes (alpha i) based on the ring center offset (a1, b1) and the angle (alpha x) of the guide vane. Also disclosed is an actuation apparatus for multiple compressor guide vanes (10).