COMPOSITE BLADE ROOT ATTACHMENT

A preferred embodiment of the said present invention is a gas turbine engine blade root shim (40) for use between a composite blade root (18) and a wall of a slot for receiving the root in a rotor (12) of the engine. An exemplary embodiment of the shim (40) includes a longitudinally extending base (...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	THOMAS CARL MESING, JOHN ANDREW RAVENHALL
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 preferred embodiment of the said present invention is a gas turbine engine blade root shim (40) for use between a composite blade root (18) and a wall of a slot for receiving the root in a rotor (12) of the engine. An exemplary embodiment of the shim (40) includes a longitudinally extending base (60) having distal first and second transversely spaced apart ends (64, 68), first and second longitudinally extending legs (70, 72) acutely angled inwardly towards the base (60) from the first and second ends (64, 68), and first and second low coefficient of friction coatings (78, 80) on first and second outwardly facing surfaces (84, 86) of the first and second legs (70, 72), respectively. Among coatings suitable for use in the present invention are polytetrafluoroethylene powder dispersed in a resin binder and other coatings which include polytetrafluoroethylene.