Stators for electrical machines
US-2016301286-A1 · Oct 13, 2016 · US
Wind turbine generator with gear unit cooling system including re-cooling
US9531240B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9531240-B2 |
| Application number | US-201514839051-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2015 |
| Priority date | Aug 29, 2014 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A wind turbine includes a generator having a generator cooling system configured for passage of a cooling fluid, and a gear unit including a gear unit cooling system configured for passage of a cooling fluid. The gear unit cooling system includes a recooling unit which is configured to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the gear unit cooling system to air inside the generator or to the cooling fluid of the generator cooling system.
First claim
Opening claim text (preview).
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein: 1. A wind turbine, comprising: a generator including a generator cooling system configured for passage of a cooling fluid; and a gear unit including a gear unit cooling system configured for passage of a cooling fluid, said gear unit cooling system comprising a recooling unit configured to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the gear unit cooling system to air inside the generator or to the cooling fluid of the generator cooling system. 2. The wind turbine of claim 1 , wherein the cooling fluid of the generator cooling system is air and the cooling fluid of the gear unit cooling system is oil, said recooling unit being configured as an air-to-oil heat exchanger which is integrated into the generator cooling system and configured to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the gear unit cooling system to the cooling fluid of the generator cooling system. 3. The wind turbine of claim 1 , wherein the cooling fluid of the generator cooling system is air and the cooling fluid of the gear unit cooling system is oil, said generator cooling system including an air-to-air heat exchanger configured to transmit during normal operation of the wind turbine thermal energy from air inside the generator to the cooling fluid of the generator cooling system to thereby cool the air, said recooling unit being configured as an air-to-oil heat exchanger integrated into the generator and configured to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the gear unit cooling system to the air inside the generator. 4. The wind turbine of claim 1 , wherein the cooling fluid of the gear unit cooling system is oil and the cooling fluid of the generator cooling system is water, said recooling unit being configured as a water-to-oil heat exchanger integrated into the generator cooling system and configured to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the gear unit cooling system to the cooling fluid of the generator cooling system. 5. The wind turbine of claim 1 , wherein the cooling fluid of the generator cooling system is water and the cooling fluid of the gear unit cooling system is oil, said generator cooling system including a water-to-air heat exchanger configured cool the air inside the generator and to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the generator cooling system to the air inside the generator, said recooling unit being configured as an air-to-oil heat exchanger which is integrated into the generator and configured to transmit during normal operation of the wind turbine thermal energy from the air inside the generator to the cooling fluid of the gear unit cooling system.
Assignees
Inventors
Classifications
- H02K9/10Primary
by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing · CPC title
Details, components or accessories not provided for in groups F03D1/00 - F03D17/00 · CPC title
Cross-Sectional Technologies · mapped topic
Transmission of mechanical power · CPC title
Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine · CPC title
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Frequently asked questions
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- What does patent US9531240B2 cover?
- A wind turbine includes a generator having a generator cooling system configured for passage of a cooling fluid, and a gear unit including a gear unit cooling system configured for passage of a cooling fluid. The gear unit cooling system includes a recooling unit which is configured to transmit during normal operation of the wind turbine thermal energy from the cooling fluid of the gear unit co…
- Who is the assignee on this patent?
- Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification H02K9/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 27 2016 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).