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1. AU2006340075 - Helicopter rotor yoke and method of making same

Office Australie
Numéro de la demande 2006340075
Date de la demande 24.02.2006
Numéro de publication 2006340075
Date de publication 14.08.2008
Type de publication A1
CIB
B64C 27/39
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
64AÉRONAUTIQUE; AVIATION; ASTRONAUTIQUE
CAÉROPLANES; HÉLICOPTÈRES
27Giravions; Rotors propres aux giravions
32Rotors
37comportant des articulations
39les pales étant articulées séparément, c. à d. avec des articulations de battement ou de traînée
CPC
B64C 27/33
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
32Rotors
33having flexing arms
B64C 27/32
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
32Rotors
Y10T 29/49316
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
49316Impeller making
Déposants Bell Helicopter Textron, Inc.
Inventeurs Baskin, Bryan K.
Mandataires K&L Gates
Titre
(EN) Helicopter rotor yoke and method of making same
Abrégé
(EN)
A rotor yoke includes a blade attachment portion, a mast attachment portion, and an intermediate portion extending between the blade attachment portion and the mast attachment portion. The intermediate portion, the blade attachment portion, and the mast attachment portion define an optional inner edge, such that the inner edge, if present, defines an opening. The rotor yoke further includes a peripheral, outer edge extending about the blade attachment portion, the intermediate portion, and the mast attachment portion. At least one of the outer edge and the inner edge, if present, includes a reduced thickness portion exhibiting a thickness that is less than a thickness of an adjacent portion of the rotor yoke.