Global Patent Index - EP 1061263 A1

EP 1061263 A1 2000-12-20 - Rotor with blades attached to a hub by bearings contained in a bush

Title (en)

Rotor with blades attached to a hub by bearings contained in a bush

Title (de)

Laufrad mit Schaufeln, die mittels Lager in einer Hülse an einer Nabe befestigt sind

Title (fr)

Rotor avec pâles attachées à un moyeu par des paliers montés dans un manchon

Publication

EP 1061263 A1 (EN)

Application

EP 00202051 A

Priority

IT MI991321 A

Abstract (en)

A description is given of a twin-blade or multi-blade rotor (33) comprising a hub (30) on which is fixed for each blade (32n) a bush (31) containing in its interior one or more bearings whose outer races are integral with the said bush (31), and whose inner races are integral with a member which is fixed to the said hub (30) and which is connected to the said bush (31), the radially innermost end of a blade (32n) being fixed to the said bush (31), in which rotor the said bush (31) is provided with a hollow extension (31p) in which a cylindrical cavity (31c) is formed, and the end part (32c) of the said blade (32) is also cylindrical and complementary to the said cylindrical cavity (31c), the said bush (31) being provided with means (34, 44, 54, 64, 36n, 36p) for reversibly clamping the said end part (32c) of the blade (32) in the said cylindrical cavity (31c). <IMAGE>

IPC 1-7 (main, further and additional classification)

F04D 29/36

IPC 8 full level (invention and additional information)

F04D 29/36 (2006.01); F04D 29/38 (2006.01)

CPC (invention and additional information)

F04D 29/388 (2013.01); F04D 29/362 (2013.01); F04D 29/384 (2013.01)

Citation (applicant)

None

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1061263 A1 20001220; EP 1061264 A1 20001220; IT MI991321 A1 20001214; IT MI991321 D0 19990614

INPADOC legal status


2002-05-29 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-04-24 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010621

2001-09-05 [AKX] PAYMENT OF DESIGNATION FEES

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-12-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI