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US 8,552,576 B2Granted
Wind turbine comprising a generator cooling system
OwnerAloys Wobbeninventor
Life of this patent
Estimating the term…
Abstract
A wind power installation is provided having a pylon, a pod mounted rotatably on the pylon, a generator arranged within the pod and having a rotor and a stator, and at least one fan in the region of the pod. The fan may be adapted to blow air out of a rear part of the pod, through an air gap between the stator and the rotor and into a front part of the pod. A seal structure may be positioned in the pod in such a way that an air flow that bypasses the air gap between the stator and the rotor is substantially prevented.
Claims6
A wind power installation comprising:
- a pylon;
- a pod mounted rotatably on the pylon, the pod having a front interior portion and a rear interior portion;
- a generator arranged within the pod between the front interior portion and the rear interior portion, the generator including a rotor and a stator and having an air gap between the rotor and the stator;
- at least one fan coupled to the pod, the fan being arranged to draw outside air into the rear interior portion of the pod from an external environment and force the outside air through the air gap between the rotor and the stator into the front interior portion of the pod;
- and
- seal structures positioned in the pod to substantially prevent air flow from bypassing the air gap between the rotor and the stator when the outside air is forced from the rear interior portion to the front interior portion, and
- wherein the at least one fan and the stator are sealed off in relation to the pod in such a way that substantially only one second air gap remains open between the rotor and the stator of the generator and permits a discharge flow of the outside air which is drawn in.
4 more elements
A wind power installation comprising:
- a pylon;
- a pod mounted rotatably on the pylon;
- a generator with a rotor and a stator, the generator dividing the pod into a front part and a rear part which are connected by an air gap between the stator and the rotor;
- a plurality of fans in the rear part of the pod, the plurality of fans adapted to draw outside air into the rear part of the pod from an external environment and force the outside air out of the rear part of the pod, through the air gap, into the front part of the pod, and out of the pod into the external environment;
- seal structures positioned in the pod to substantially prevent air flow from bypassing the air gap;
- a first partition positioned in the rear part of the pod which divides the rear part of the pod into a first part and a second part, at least one of the plurality of fans provided in the second part of the rear part of the pod and adapted to force outside air drawn into the pod through the partition into the first part of the rear part of the pod;
- and
- a second partition adjoining the first partition in such a way that it extends parallel to the generator, at least one of the plurality of fans arranged in the second partition in such a way that the outside air which is drawn by that fan is directed into the proximity of the air gap of the generator.
5 more elements
Dependencies are inferred from the claim text.