公开(公告)号：EP2440454A1

公开(公告)日：2012-04-18

申请号：EP09845904.3

申请日：2009-06-10

申请人： Saab AB

发明人： CARDELL, Per-Erik ,  STENBOM, Kjell

IPC分类号： B64C27/35 ,  B64C11/12

CPC分类号： B64C27/43 ,  B64C2201/024 ,  Y10S416/50

摘要： The present invention relates to a main rotor arrangement (1) for an UAV-helicopter, comprising a rotor mast (3) defining a vertical axis of rotation (R), and a hub (5) for attachment of rotor blades, wherein the hub (5) is mounted to the rotor mast (3) in a tiltable way so as to reduce loads acting on the rotor blades during operation of the UAV-helicopter. The main rotor arrangement (1) comprises a damping assembly (18) for damping said tilting of the hub (5).

公开(公告)号：EP2190731A2

公开(公告)日：2010-06-02

申请号：EP08873742.4

申请日：2008-08-13

申请人： Nostrum Energy Pte. Ltd.

发明人： SANE, Shrikishna ,  MULYE, Nirmal ,  SHUKLA, Vijay ,  BARROS, Osanan L.

IPC分类号： B63H1/06 ,  B63H5/125 ,  B64C11/12 ,  B64C11/28 ,  B64C27/50

CPC分类号： F03D9/25 ,  F03D9/00 ,  F03D13/20 ,  F03D80/70 ,  Y02E10/725

摘要： A linear wind powered electric generator (LWPEG), which is particularly adapted for installation at geographical sites subject to lower wind intensities. More specifically, there are provided design concepts for an LWPEG, possessing reasonable economic parameters for utilization at the lower-intensity wind sites. Moreover, the linear wind powered electric generator is based on a track based wind power generator, incorporating aerodynamic designs, which are adapted to reduce mechanical complexities presently encountered in this technology, while being cost-effective both in construction and in connection with the operation thereof.