Rotation driving mechanism for windmill
US-2015377212-A1 · Dec 31, 2015 · US
Direct drive wind turbine with a cooling system
US9803694B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9803694-B2 |
| Application number | US-201013520396-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 26, 2010 |
| Priority date | Jan 11, 2010 |
| Publication date | Oct 31, 2017 |
| Grant date | Oct 31, 2017 |
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- Title
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- Abstract
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Abstract
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A direct drive wind turbine with a cooling system has a generator with a rotor and a stator and a bearing with an inner ring and an outer ring connecting the rotor and the stator rotatively. The cooling system includes at least one heat sink which is in thermal communication with the inner ring of the bearing and a heat dissipater which is in thermal communication with the heat sink.
First claim
Opening claim text (preview).
The invention claimed is: 1. A direct drive wind turbine comprising: a generator with a rotor and a stator; a bearing with an inner ring and an outer ring connecting the rotor and the stator rotatively, a cooling system comprising: a heat sink being in thermal communication with the inner ring of the bearing, and a heat dissipater being in thermal communication with the heat sink. 2. The direct drive wind turbine according to claim 1 , wherein the heat sink comprises a cooling reservoir for a cooling medium. 3. The direct drive wind turbine according to claim 1 , wherein the heat sink is arranged at an inner circumferential surface of the inner ring. 4. The direct drive wind turbine according to claim 1 , wherein the heat sink is formed integrally with the inner ring. 5. The direct drive wind turbine according to claim 1 , wherein the heat sink is connected with the heat dissipater via a conduct. 6. The direct drive wind turbine according to claim 1 , wherein a heat sink is provided for the outer ring of the bearing. 7. The direct drive wind turbine according to claim 1 , wherein a thermal interface material is arranged between the bearing and the heat sink. 8. The direct drive wind turbine according to claim 1 , wherein the cooling system comprises a temperature measurement device and a control device for controlling the temperature of the bearing. 9. The direct drive wind turbine according to claim 1 , wherein the rotor is an outer rotor and the stator is an inner stator, and wherein the inner ring of the bearing is connected to a stationary part of the direct drive wind turbine and the outer ring of the bearing is connected to a rotor yoke of the direct drive wind turbine.
Assignees
Inventors
Classifications
by impingement of a fluid · CPC title
Cross-Sectional Technologies · mapped topic
- F03D80/70Primary
Bearing or lubricating arrangements · CPC title
of rolling bearings · CPC title
Wind motors · CPC title
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Frequently asked questions
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- What does patent US9803694B2 cover?
- A direct drive wind turbine with a cooling system has a generator with a rotor and a stator and a bearing with an inner ring and an outer ring connecting the rotor and the stator rotatively. The cooling system includes at least one heat sink which is in thermal communication with the inner ring of the bearing and a heat dissipater which is in thermal communication with the heat sink.
- Who is the assignee on this patent?
- Eriksen Uffe, Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification F03D80/70. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 31 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).