公开(公告)号：US20140294592A1

公开(公告)日：2014-10-02

申请号：US13852562

申请日：2013-03-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Lorenz Edwin Drack ,  Thierry Pascal Maeder ,  Gowri Jaganathan Sengundermudaliar ,  Karthickprabu Vijayakumar

IPC: F03D1/06 ,  F03D1/00

CPC classification number: F03D1/0633 ,  F05B2240/30 ,  F05B2260/96 ,  Y02E10/721 ,  Y10T29/49337 ,  Y10T156/10

Abstract: A wind blade is provided that includes a primary blade body defining a leading edge and a trailing edge and further defining a pressure side and a suction side joining along the trailing edge. The wind blade also includes a secondary blade having an aerodynamic contour defining a first surface and a second surface and coupled with the primary blade body for the purpose of shielding noise. The secondary blade body is disposed proximate to at least a portion of the trailing edge on at least one of the pressure side and the suction side of the primary blade body and may also improve overall performance of the wind blade.

Abstract translation: 提供了一种风刀片，其包括限定前缘和后缘的主刀片主体，并进一步限定沿后缘连接的压力侧和吸力侧。 风叶片还包括具有限定第一表面和第二表面的空气动力学轮廓的次级叶片，并且与主叶片本体结合以便屏蔽噪声。 次叶片主体靠近主叶片主体的压力侧和吸力侧的至少一个上的后缘的至少一部分设置，并且还可以改善风叶的整体性能。