Drivetrain for wind turbine and wind turbine
AssigneeEnvision Energy CO.,LTD
InventorsRalf Rueschoff, Matthias Walkowiak, Stephan Uhkoetter, Manuel Joop
Life of this patent
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Abstract
The present invention relates to a drivetrain and a wind turbine with the drivetrain, where the drivetrain comprises at least a gearbox, a generator and a pump system for supplying lubrication medium to at least the gearbox or generator. The pump system comprises a plurality of pump units being mechanically connected to the planetary gear stage or the generator shaft. The mechanical connection can be a gear connection. The pump unit comprises a mechanical pump with a drive axle.
Claims17
A drivetrain (6) for a wind turbine (1), comprising:
- a gearbox (7) with at least one gear stage (12a, 12b, 12c), wherein the gearbox (7) comprises at least a gearbox input configured to transfer torque to the at least one gear stage;
- a generator (8) with at least a rotor (19) rotatably arranged relative to a stator (18), wherein the generator (8) comprises at least a generator output configured to generate an output of the generator (8);
- and
- a lubrication system (10) arranged relative to the gearbox (7) or the generator (8), wherein the lubrication system (10) comprises at least one pump unit (20) configured to supply a lubrication medium to at least the gearbox (7) or generator (8), wherein
- the lubrication system (10) comprises at least one mechanical pump, the at least one mechanical pump is connected to a shaft of the generator (8) or to a planetary gear stage of the gearbox (7) via a mechanical connection.
A wind turbine (1) comprising a wind turbine tower (2), a nacelle (3) arranged on top of the wind turbine tower (2), and a rotor comprising a hub (4) and at least one wind turbine blade (5), wherein the rotor is arranged relative to the nacelle (3) and mechanically connected a drivetrain (6) of the wind turbine (1), wherein the drivetrain (6) comprises:
- a gearbox (7) with at least one gear stage (12a, 12b, 12c), wherein the gearbox (7) comprises at least a gearbox input configured to transfer torque to the at least one gear stage;
- a generator (8) with at least a rotor (19) rotatably arranged relative to a stator (18), wherein the generator (8) comprises at least a generator output configured to generate an output of the generator (8);
- and
- a lubrication system (10) arranged relative to the gearbox (7) or the generator (8), wherein the lubrication system (10) comprises at least one pump unit (20) configured to supply a lubrication medium to at least the gearbox (7) or generator (8), wherein the lubrication system (10) comprises at least one mechanical pump, and the at least one mechanical pump is connected to a shaft of the generator (8) or to a planetary gear stage of the gearbox (7) via a mechanical connection.
Dependencies are inferred from the claim text.