A tensioning arrangement for a bearing ring is disclosed which introduces compressive force towards a rotational centre of the bearing ring to prevent bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement comprises a strap (108) and a tensioner (105). The strap has a connector ...

Method and apparatus for flushing greasefrom a wind turbine main bearing. A method is disclosed for replacing grease in a main bearing of a wind turbine, the main bearing located in a housing and the housing having least one cover plate. the bearing cover plate is removed from the housing, grease is manually remove...

A power transmission system(10)for increasing the rotational speed from a rotor of a wind turbine has a rotor shaft(1)configured to be driven by the rotor hub (106)about a main axis(11); a speed increasing gearbox having a gearbox input member(7);a support structure(6)supporting the rotor shaft(1)and gearbox; a roto...

A gear arrangement comprising: a first gear arranged to rotate about a first longitudinal axis and including a first plurality of gear teeth, and a first portion including a first surface; a second gear arranged to rotate about a second longitudinal axis and including a second plurality of gear teeth, and a second p...

A method of computer aided engineering for designing a rotating machine assembly involves creating within a graphical user interface of a computer system a layout of said rotating machine assembly, and forming a functional model 210 of the rotating machine assembly from the layout. The layout is created by selecting...

A method for predicting remaining useful life of a wind or water turbine or component determines in step (116) an accumulated damage for the turbine or component and compares this in step (118) to preset damage limit obtained in step (114). This provides a simple approach to estimating remaining useful life giving t...

A method for predicting remaining useful life of a wind or water turbine or component determines in step (116) an EOH for the turbine or component and compares this in step (118) to an EOH limit obtained in step (114). This provides a simple approach to estimating remaining useful life giving the turbine operator an...

There is provided a pin and mounting assembly for supporting a gear of an epicyclic or parallel shaft transmission. The pin and mounting assembly comprises: a mounting (4) which has a first interference surface; and a pin (2) which has a second interference surface. The second interference surface is adapted for eng...

A bearing cartridge for a rotatable shaft of a wind turbine comprising a shaft and a back-to-back tapered roller bearing arrangement coupled to the shaft. The bearing arrangement comprising a first bearing having a first outer ring, a first inner ring and a plurality of tapered rollers; and a second bearing having a...

An assembly (400) for a horizontally mounted planetary gearbox comprises high speed components of the gearbox; a housing (402) for the high speed components; and a collar (404) located at the output end of the housing and extending radially inward from an outer surface of the housing (402). This arrangement means th...

A lubrication arrangement for a rotating machine which has components to be lubricated has a lubricant reservoir (2) and a first arrangement of one or more conduits. The reservoir (2) is located above the components and is connected to the first arrangement of conduits. The first arrangement of conduits includes out...

The present invention is a computer-implemented method for designing a drivetrain using computer aided engineering. The method comprises the steps of: a) receiving a selection of a certification test from a plurality of certification tests; b) receiving a parametric description of the drivetrain; c) receiving a sele...

Construction of a permanent magnet rotor assembly having a plurality of magnetic poles and comprising a number of magnetic pole pieces arranged in circular array. Two sets of permanent magnets – one set magnetised in circumferential direction of the rotor and the second set providing flux in axial direction of rotor...

A method for controlling wind turbine farm level loads by control strategy through site-specific topology effects. The method involves the steps of: providing wind velocity data from wind sensors mounted on the wind turbines the velocity data comprising wind speed and wind direction; providing wind velocity data fro...

A computer-related method for estimating turbine hub loads in a windpark comprising a plurality of turbines the method comprising the steps of: providing a 3D airflow database; providing a turbine loads transfer function; measuring turbine operating data for each turbine; and processing turbine operating data using ...

A computer-implemented method for modelling a driveline. The driveline comprising a plurality of components. The method comprising the steps of: a) receiving a parametric description of the driveline; b) creating a tribology model of the driveline from the parametric description; c) calculating one or more traction ...

A computer-implemented method for modelling a driveline, the driveline comprising a plurality of components. The method comprising the steps of: a) receiving a parametric description of the driveline; b) creating a thermal model of the driveline from the parametric description; c) calculating a temperature distribut...

The current invention relates to a magnetic pole arrangement comprising a plurality of magnetic pole assembles arranged back-to-back along a longitudinally extending axis of rotation X. Each providing flux to an air gap G. Each magnetic pole assembly comprising one or more magnetic poles pieces and two components of...