Wind power generator equipped with a cooling system
AssigneeWindfin B.V.
InventorsOtto Pabst, Georg Folie, Matteo Casazza, Paolo Bustreo, Peter Gebhard
Life of this patent
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Abstract
A wind power generator has a nacelle; a hub rotatable about an axis of rotation with respect to the nacelle; at least two blades fitted to the hub; an electric machine which is fitted to the nacelle, is bounded by an inner surface extending about the axis of rotation, and has a rotor and a stator; and a cooling system for airflow cooling the electric machine, and which has a deflector body for defining a gap between the deflector body and the electric machine and guiding the airflow into the gap.
Claims14
A wind power generator cooling system comprising:
- a deflector wall including a tubular portion, wherein:
- (i) at least part of the deflector wall is housed in a hollow electrical machine of a wind power generator, the hollow electric machine including:
- (a) a stator,
- (b) a hollow rotor which is distinct from the tubular portion of the deflector wall, and
- (c) an inner tubular surface which extends about an axis of rotation,
- (ii) the deflector wall is mounted to the hollow rotor of the hollow electric machine, and
- (ii) a cooling airflow guide gap is defined between the deflector wall and the inner tubular surface of the hollow electric machine, said defined cooling airflow guide gap extending between the hollow rotor and the deflector wall.
A wind power generator hollow electric machine comprising:
- a stator;
- a hollow rotor housed within the stator and having an inner tubular surface;
- and
- a deflector wall at least partly housed in the hollow rotor, said deflector wall including a tubular portion, wherein a cooling airflow guide gap is defined between the deflector wall and the inner tubular surface of the hollow rotor, the deflector wall is mounted to the hollow rotor, and the hollow rotor is distinct from the tubular portion of the deflector wall.
A wind power generator cooling system comprising:
- a deflector wall including a tubular portion, wherein:
- (i) at least part of the deflector wall is housed in a hollow electrical machine of a wind power generator, the hollow electric machine including:
- (a) a stator,
- (b) a hollow rotor which is distinct from the tubular portion of the deflector wall, and
- (c) an inner tubular surface which extends about an axis of rotation, and
- (ii) a cooling airflow guide gap is defined between the deflector wall and the inner tubular surface of the hollow electric machine;
- and
- a plurality of cooling fins connected to the hollow electric machine along the inner tubular surface.
A wind power generator hollow electric machine comprising:
- a stator;
- a hollow rotor housed within the stator and having an inner tubular surface;
- a deflector wall at least partly housed in the hollow rotor, said deflector wall including a tubular portion, wherein a cooling airflow guide gap is defined between the deflector wall and the inner tubular surface of the hollow rotor and the hollow rotor is distinct from the tubular portion of the deflector wall;
- and
- a plurality of cooling fins connected to the inner tubular surface of the hollow rotor.
Dependencies are inferred from the claim text.