Rotor blades

F - Mech Eng,Light,Heat,Weapons – 03 – B

Patent

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Details

F03B 3/12 (2006.01) F03D 11/04 (2006.01)

Patent

CA 2743230

A rotor blade comprises a blade portion, a root portion (30) connected with, and extending from, the blade portion, the root portion (30) having an annular cross section which defines first and second root surfaces, and a plurality of discrete root fittings (31) connected with respective portions of the root portion (30), and adapted for attachment to a blade mounting. Each root fitting comprises an elongate body member (31) which extends from a free end of the root portion (30) towards the blade portion, which defines first and second bonding surfaces, adhesively bonded to the first and second root surfaces respectively, and which includes means for attachment to a blade mounting.

Cette invention concerne une pale de rotor comprenant : une partie pale ; une partie pied (30) raccordée à la partie pale et partant de cette dernière, cette partie pied (30) présentant une section en coupe annulaire qui définit une première et une seconde surface de pied ; et une pluralité de raccordements de pied (31) distincts qui sont raccordés aux parties correspondantes de la partie de pied et qui sont conçus pour être reliés à un support de pale. Chaque raccordement de pied comprend un élément principal de forme allongée (31) qui sétend de lextrémité libre de la partie de pied(30) vers la partie pale, qui définit des première et seconde surfaces de liaison reliées par collage aux première et seconde surfaces de pied, respectivement, et qui comprend des moyens de fixation au support de pale.

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