公开(公告)号：US10184448B2

公开(公告)日：2019-01-22

申请号：US15151806

申请日：2016-05-11

Applicant: BLADE DYNAMICS LIMITED

Inventor： Paul Trevor Hayden ,  David Anthony Whiley

IPC: F03D1/06

Abstract: A wind turbine blade which is at least 45 m long. The blade has a main axis in the lengthwise direction from root to tip and an aerodynamic shell surrounding a spar which extends in a lengthwise direction along a substantial proportion of the blade at least a portion of the half of the shell closest to the tip. The blade is reinforced by high stiffness fibers having a Young's modulus to density ratio of greater than 50 GPa/(g·cm−3), and an electrical resistivity of greater than 1010 Ω·cm. The fibers are biaxial with a first axis angled with respect to the main axis at an acute angle and a second axis angled with respect to the main axis at an acute angle in the opposite sense to the first angle.

公开(公告)号：US10125741B2

公开(公告)日：2018-11-13

申请号：US14092792

申请日：2013-11-27

Applicant: Blade Dynamics Limited

Inventor： Paul Trevor Hayden ,  David Anthony Whiley

IPC: F03D1/06

Abstract: A wind turbine rotor comprising a hub (1) from which a plurality of blades (2) project to a radius of at least 50 meters. Each blade comprising a hollow fairing supported by a central spar. Each blade has a thickness t at a radius r; characterized in that when r=0.5 R, t>0.3 T, where R is the radius of the blade and T is the thickness of the blade at the root end. By being thicker for a greater proportion of the blade, the aerodynamic performance of this part of the blade is worse, but this is more than compensated for as it allows better aerodynamic performance where it matters more, namely at the outer part of the blade. It also allows larger blades to be provided.

公开(公告)号：US20140086752A1

公开(公告)日：2014-03-27

申请号：US14092792

申请日：2013-11-27

Applicant: Blade Dynamics Limited

Inventor： Paul Trevor Hayden ,  David Anthony Whiley

IPC: F03D1/06

CPC classification number: F03D1/06 ,  F03D1/0641 ,  F03D1/0666 ,  F03D1/0675 ,  F05B2240/301 ,  F05B2280/2001 ,  F05B2280/2006 ,  F05B2280/5001 ,  F05B2280/6003 ,  Y02E10/721

Abstract: A wind turbine rotor comprising a hub (1) from which a plurality of blades (2) project to a radius of at least 50 metres. Each blade comprising a hollow fairing supported by a central spar. Each blade has a thickness t at a radius r; characterised in that when r=0.5 R, t>0.3 T, where R is the radius of the blade and T is the thickness of the blade at the root end. By being thicker for a greater proportion of the blade, the aerodynamic performance of this part of the blade is worse, but this is more than compensated for as it allows better aerodynamic performance where it matters more, namely at the outer part of the blade. It also allows larger blades to be provided.

Abstract translation: 一种风力涡轮机转子，包括毂（1），多个叶片（2）从该毂突出到至少50米的半径。 每个叶片包括由中心翼梁支撑的中空整流罩。 每个叶片具有半径为r的厚度t; 其特征在于，当r = 0.5R，t> 0.3T时，其中R是叶片的半径，T是叶根在根端的厚度。 通过对于较大比例的叶片较厚，叶片的该部分的空气动力学性能更差，但是这更多的是补偿，因为它允许更重要的空气动力学性能，即叶片的外部部分。 它还允许提供更大的刀片。