GAS TURBINE ROTOR DISC WITH ASSYMETRIC CIRCUMFERENTIAL SLOT

The present invention provides a rotor disc having an enlarged radially outer rim defining a circumferentially-extending dovetail groove for housing the root portion of a rotor blade. The groove has a groove axis and the groove is unsymmetrical about the groove axis. For example, the dovetail groove...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CROFTS, RICHARD A, JONES, OLIVER R
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:	The present invention provides a rotor disc having an enlarged radially outer rim defining a circumferentially-extending dovetail groove for housing the root portion of a rotor blade. The groove has a groove axis and the groove is unsymmetrical about the groove axis. For example, the dovetail groove may have a restricted radially outer opening extending to an enlarged radially inner bulb profile having a pair of axially opposed curved surfaces and the opposing curved surfaces may unsymmetrical about the groove axis.