Electric drive unit
US-2016126800-A1 · May 5, 2016 · US
Fluid-cooled electric machine
US9300189B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9300189-B2 |
| Application number | US-201113812398-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 14, 2011 |
| Priority date | Jul 28, 2010 |
| Publication date | Mar 29, 2016 |
| Grant date | Mar 29, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A fluid-cooled electric machine includes a fluid circuit and an integrated pump element which executes a pumping action to conduct fluid through the fluid circuit as a result of a rotational movement of the electric machine. The electric machine includes a stator and a rotor arranged to demarcate with the stator a conical air gap which is flooded with fluid.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fluid-cooled electric machine, comprising: a fluid circuit; an integrated pump executing a pumping action to conduct fluid through the fluid circuit as a result of a rotational movement of the electric machine; and a stator and a rotor arranged to demarcate with the stator a conical air gap which is flooded with fluid. 2. The fluid-cooled electric machine of claim 1 , wherein the conical air gap has a stepped form. 3. The fluid-cooled electric machine of claim 1 , wherein the stator has a conically positioned stator winding. 4. The fluid-cooled electric machine of claim 1 , wherein the fluid circuit includes a radial channel in fluid communication with the air gap. 5. The fluid-cooled electric machine of claim 1 , constructed in the form of a spiral structure. 6. The fluid-cooled electric machine of claim 1 , wherein the air gap has a conical configuration. 7. The fluid-cooled electric machine of claim 1 , wherein the pump has a pump impeller which is coupled to the rotor. 8. The fluid-cooled electric machine of claim 1 , wherein the stator has a skewed stator slot.
Assignees
Inventors
Classifications
for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil · CPC title
by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing · CPC title
with channels or ducts for flow of cooling medium · CPC title
Machines characterised by aspects of the air-gap between rotor and stator · CPC title
- H02K9/005Primary
Electricity · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9300189B2 cover?
- A fluid-cooled electric machine includes a fluid circuit and an integrated pump element which executes a pumping action to conduct fluid through the fluid circuit as a result of a rotational movement of the electric machine. The electric machine includes a stator and a rotor arranged to demarcate with the stator a conical air gap which is flooded with fluid.
- Who is the assignee on this patent?
- Hautz Rudolf, Neupert Klaus, Obermayr Martin, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification H02K9/005. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 29 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).