发明名称 Pitch of blades on a wind power plant
摘要 The present invention relates to a blade for a wind power plant with an assembly face for mounting in a circular pitch bearing, whose pitch axis is angled relative to the longitudinal axis of the blade, and wherein the blade comprises a root part with an approximately elliptic cross-section, in which root part the assembly face is arranged. The invention further relates to a wind power plant in general having a pitch-adjustable blade mounted in a pitch bearing such that the distance between the outermost part of the blade and the tower is increased when the leading edge of the blade is pitched up in the wind. This is accomplished in that the longitudinal axis of the blade is angled in a particular way compared to its pitch axis. The invention also relates to a method of controlling a wind power plant, including to increase the rotor area and/or increasing the distance between the outermost part of at least one blade and the tower by regulating, during operation, the pitch of a blade about a pitch axis which is angled relative to the longitudinal axis of the blade.
申请公布号 US8267651(B2) 申请公布日期 2012.09.18
申请号 US20070516542 申请日期 2007.11.27
申请人 SOERENSEN TOMMY;LM GLASFIBER A/S 发明人 SOERENSEN TOMMY
分类号 B64C9/00 主分类号 B64C9/00
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