Wind turbine pitch bearing and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7331761
APP PUB NO 20070104577A1
SERIAL NO

11271863

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A pitch bearing and related method for wind electric turbines has an annularly-shaped first bearing ring connected with an associated wind turbine blade, and includes a first raceway groove. An annularly-shaped second bearing ring is connected with the rotor portion of the wind turbine, and includes a second raceway groove aligned with the first raceway groove. Rolling elements are positioned in the first and second raceway grooves to rotatably interconnect the two bearing rings. A gear segment is formed on one of the bearing rings, and is configured to engage a pitch drive portion of the wind turbine to pivot the blade axially between different pitch angles. The gear segment has an arcuate measure of less than 200 degrees to facilitate economical manufacture.

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Patent Owner(s)

Patent OwnerAddress
KAYDON CORPORATION2860 MCCRACKEN P O BOX 688 MUSKEGON MI 49441-0688

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hansen, Scott A Muskegon, MI 35 723
VanLangevelede, David J Spring Lake, MI 1 31

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