公开(公告)号：US09670900B2

公开(公告)日：2017-06-06

申请号：US13852241

申请日：2013-03-28

Applicant: General Electric Company

Inventor： Christian A. Carroll ,  Stefan Herr

IPC: F03D11/02 ,  F03D1/06

CPC classification number: F03D1/0633 ,  F03D1/0641 ,  Y02E10/721

Abstract: Rotor blade assemblies for wind turbines are provided. In one embodiment, a rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge each extending between a tip and a root. The rotor blade further defines a span and a chord. A span-wise portion of the pressure side includes along a chord-wise cross-section a plurality of inflection points. The plurality of inflection points include a first inflection point and a second inflection point, the first and second inflections points positioned within approximately 50% of the chord from the leading edge.

公开(公告)号：US20160305398A1

公开(公告)日：2016-10-20

申请号：US14690726

申请日：2015-04-20

Applicant: General Electric Company

Inventor： Christian A. Carroll ,  Aaron A. Yarbrough ,  Stefan Herr

IPC: F03D1/06

CPC classification number: F03D1/0675 ,  F03D1/0633 ,  F05B2240/301 ,  Y02E10/721

Abstract: The present disclosure is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade having exterior surfaces defining pressure and suction sides, and leading and trailing edges extending in a generally span-wise direction between an inboard region and an outboard region. The inboard region includes a blade root having a rounded trailing edge. Further, the rotor blade assembly further includes at least one airflow separation element mounted to either or both of the pressure or suction sides of the rotor blade within the inboard region and adjacent to the rounded trailing edge. In addition, the at least one airflow separation element corresponds to a contour of the pressure side or the suction side of the rotor blade. As such, the at least one airflow separation element is configured to provide a fixed airflow separation location in the inboard region during standard operation.

Abstract translation: 本公开涉及一种用于风力涡轮机的转子叶片组件。 转子叶片组件包括具有限定压力和吸力侧的外表面的转子叶片，以及在内侧区域和外侧区域之间沿大致跨度方向延伸的前缘和后缘。 内侧区域包括具有圆形后缘的叶片根部。 此外，转子叶片组件还包括至少一个气流分离元件，该气流分离元件安装到内侧区域内并且邻近圆形后缘的转子叶片的压力或吸入侧中的任一个或两者。 此外，至少一个气流分离元件对应于转子叶片的压力侧或吸力侧的轮廓。 因此，至少一个气流分离元件构造成在标准操作期间在内侧区域中提供固定的气流分离位置。

公开(公告)号：US09377005B2

公开(公告)日：2016-06-28

申请号：US13832848

申请日：2013-03-15

Applicant: General Electric Company

Inventor： Aaron A. Yarbrough ,  Stefan Herr ,  Christian A. Carroll

IPC: F03D1/06 ,  F03D3/06

CPC classification number: F03D1/0641 ,  F03D3/061 ,  F05B2240/301 ,  Y02E10/721 ,  Y02E10/74

Abstract: In one aspect, a rotor blade for a wind turbine is disclosed. The rotor blade may include a body extending between a blade root and a blade tip. The body may define a pressure side and a suction side extending between a leading edge and a trailing edge. In addition, the body may define a chord line extending between the leading and trailing edges. The rotor blade may also include an airfoil modifier coupled to at least one of the pressure side or the suction side of the body. The airfoil modifier may define an end surface disposed adjacent to the trailing edge. At least a portion of the end surface may extend at a non-perpendicular angle relative to the chord.

Abstract translation: 一方面，公开了一种用于风力涡轮机的转子叶片。 转子叶片可以包括在叶片根部和叶片尖端之间延伸的主体。 主体可以限定在前缘和后缘之间延伸的压力侧和吸力侧。 此外，主体可以限定在前缘和后缘之间延伸的弦线。 转子叶片还可以包括耦合到主体的压力侧或吸力侧中的至少一个的翼型调节器。 翼型调节器可以限定邻近后缘设置的端面。 端表面的至少一部分可以以相对于弦的非垂直角度延伸。

公开(公告)号：US20140328693A1

公开(公告)日：2014-11-06

申请号：US14017355

申请日：2013-09-04

Applicant: General Electric Company

Inventor： Megan Michela Wilson ,  Stefan Herr ,  Ramesh Vedula ,  John Glenn Luedke

IPC: F03D1/06

CPC classification number: F01D5/02 ,  F03D1/0633 ,  F03D1/0641 ,  F05B2240/32 ,  Y02E10/721

Abstract: Rotor blade assemblies for wind turbines are provided. The rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge each extending between a tip and a root. The rotor blade further defines a span and a chord. The rotor blade assembly further includes at least one vortex generator configured on at least one of the suction side or the pressure side of the rotor blade, the at least one vortex generator having an aspect ratio between approximately 4 and approximately 10. In another embodiments, the rotor blade assembly further includes at least one vortex generator configured on at least one of the suction side or the pressure side of the rotor blade, the at least one vortex generator having a length between approximately 4% and approximately 20% of a local chord.

Abstract translation: 提供了用于风力涡轮机的转子叶片组件。 转子叶片组件包括具有限定压力侧，吸力侧，前缘和后缘的外表面的转子叶片，其各自在尖端和根部之间延伸。 转子叶片进一步限定跨度和弦。 转子叶片组件还包括构造在转子叶片的吸入侧或压力侧中的至少一个上的至少一个涡流发生器，所述至少一个涡流发生器具有大约4和大约10之间的纵横比。在另一个实施例中， 转子叶片组件还包括构造在转子叶片的吸入侧或压力侧中的至少一个上的至少一个涡流发生器，所述至少一个涡流发生器具有在局部弦的约4％和约20％之间的长度 。