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Drivetrain and method for lubricating bearing in wind turbine

A transmission system, bearing technology, applied in the direction of engine lubrication, bearings in rotating motion, machines/engines, etc., can solve problems such as hindering effective operation, agitation, damage to fans, etc.

Inactive Publication Date: 2013-03-27
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this typical design suffers from various disadvantages
For example, expelled lubricating fluid can pool in undesirable areas of the drivetrain, clogging those areas, causing agitation and preventing efficient operation
In addition, lubricating fluid can seep through various seals in the transmission system, which can damage various other components of the wind turbine, for example, components of the generator, and / or cause such components to fail

Method used

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  • Drivetrain and method for lubricating bearing in wind turbine
  • Drivetrain and method for lubricating bearing in wind turbine
  • Drivetrain and method for lubricating bearing in wind turbine

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Embodiment Construction

[0033] Reference will now be made in detail to various embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, those skilled in the art can make various modifications and changes to the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on other embodiments to yield yet a further embodiment. Accordingly, the present invention is intended to cover all modifications and changes that come within the scope of the appended claims and their equivalents.

[0034] Figure 1 shows a fan 10 of conventional construction. The wind turbine 10 includes a tower 12 on which a nacelle 14 is mounted. A plurality of rotor blades 16 are mounted to a rotor hub 18 which in turn is connected to a main flange which turns a main rotor shaft, as de...

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Abstract

A drivetrain for a wind turbine and a method for lubricating a bearing in a drivetrain of a wind turbine are disclosed. The drivetrain includes a rotatable component and a bearing surrounding the rotatable component. The drivetrain further includes a lubrication passage in fluid communication with the bearing for providing lubrication fluid thereto, and a drainage passage in fluid communication with the bearing for removing lubrication fluid therefrom. Further, the drivetrain includes a dry sump in fluid communication with the drainage passage. The dry sump includes a pump operable to flow lubrication fluid from the drainage passage.

Description

technical field [0001] The present invention relates generally to wind turbines, and more particularly to transmission systems and methods for lubricating bearings in transmission systems of wind turbines. Background technique [0002] Wind energy is considered to be one of the cleanest and most environmentally friendly energy sources available, and wind turbines have gained a lot of attention in this regard. A modern wind turbine typically consists of a tower, generator, gearbox, nacelle and one or more rotor blades. The rotor blades use the known airfoil principle to capture the kinetic energy of the wind. The rotor blades transmit kinetic energy in the form of rotational energy to turn a shaft that connects the rotor blades to a gearbox or, if a gearbox is not used, directly to the generator. The generator then converts the mechanical energy into electrical energy, which is fed into the utility grid. [0003] During wind turbine operation, the various components of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/02F16H57/04
CPCF05B2240/50Y02E10/722F16N2210/025F16C33/6659F16N7/40F05B2260/603F03D11/0008F05B2260/98F03D11/02F16C33/6685F03D15/00F03D80/70F16C19/386F16C2360/31Y02E10/72F03D15/10
Inventor A.D.米纳迪奥P.C.帕特尔M.J.伯克特
Owner GENERAL ELECTRIC CO
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