Method for lubricating a gearbox for a wind turbine

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United States of America Patent

PATENT NO 9458833
APP PUB NO 20150139820A1
SERIAL NO

14402716

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Abstract

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A method for lubricating a gearbox of a wind turbine. The gearbox comprises a plurality of gears and shafts supported by bearings of which at least one bearing is a plain bearing. The gearbox furthermore comprises a lubrication system with both a mechanical pump and an electrical pump for feeding the gears and bearings with lubricant, wherein a difference between a volume capacity of the mechanical and electrical pump is a maximum 40%. The method comprises the step of controlling at least one valve, during start-up of the gearbox, and feeding lubricant to the bearings via the electrical pump; feeding lubricant to the bearings and the gears, during normal operation of the gearbox, via the electrical pump and the mechanical pump; and feeding lubricant only the bearings, during the absence of electrical power supply, via the mechanical pump.

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Patent Owner(s)

Patent OwnerAddress
ZF WIND POWER ANTWERPEN NV3920 LOMMEL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leimann, Dirk Edegem, BE 13 24

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