WIND TURBINE GEARBOX LUBRICATION SYSTEM

A wind turbine gearbox system includes an input gear stage having mating gear surfaces finished to a surface roughness of less than 0.25 micron and at least one bearing supporting the input gear stage. A lubrication circuit is arranged to deliver lubricant to the input gear stage and the bearing dur...

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Bibliographic Details
Main Authors BENSON RONALD E, SROKA GARY J, MICHAUD MARK D, WINKELMANN LANE
Format Patent
LanguageEnglish
Published 04.09.2015
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PRODUCING MECHANICAL POWER
THERMAL INSULATION IN GENERAL
WEAPONS
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Summary:A wind turbine gearbox system includes an input gear stage having mating gear surfaces finished to a surface roughness of less than 0.25 micron and at least one bearing supporting the input gear stage. A lubrication circuit is arranged to deliver lubricant to the input gear stage and the bearing during operation of the wind turbine and includes an inline filter for removal of particles of less than 2 micron from the lubricant prior to delivery. A lubricant for use in the system may have a relatively low viscosity compared to conventional wind turbine gearbox lubricants.
Bibliography:Application Number: IN2014CHENP3849