TURBINE MOVING BLADE

TURBINE MOVING BLADE

PROBLEM TO BE SOLVED: To provide a turbine moving blade that can continuously maintain the constant contact state of the contact faces of one snubber cover and an adjacent snubber cover during operation and sufficiently damp a vibration mode in the same direction as the rotating direction of a blade...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OKUNO KENICHI, KANEKO JOJI, FUJITSUKA SHINYA, OISHI YASUSHI
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:PROBLEM TO BE SOLVED: To provide a turbine moving blade that can continuously maintain the constant contact state of the contact faces of one snubber cover and an adjacent snubber cover during operation and sufficiently damp a vibration mode in the same direction as the rotating direction of a blade effective part. SOLUTION: In this turbine moving blade, the contact faces 14aF, 14bB composed of a plurality of end faces formed in approximately crank shape are formed respectively at the snubber cover 13a provided at the blade top of one blade effective part 12a, and the snubber cover 13b provided at the blade top of the adjacent blade effective part 12b. Out of the faces forming the contact faces 14aF, 14bB, contact friction faces 16aF, 16bB which are the mutual contact faces of one snubber cover and the other snubber cover are formed with a positive inclination angle α to the rotating direction of the blade effective parts 12a, 12b. COPYRIGHT: (C)2004,JPO