Electric motor and electric pump
US-2016341202-A1 · Nov 24, 2016 · US
Centrifugal pump apparatus
US9067005B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9067005-B2 |
| Application number | US-200913133471-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 10, 2009 |
| Priority date | Dec 8, 2008 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a permanent magnet provided in one surface of the impeller, a permanent magnet provided in an inner wall of the blood chamber, a permanent magnet provided in the other surface of the impeller, and a magnetic material and a coil provided in a motor chamber for driving the impeller to rotate via a diaphragm. Grooves for hydrodynamic bearing are formed in the diaphragm facing the impeller, and in the inner wall of the blood chamber, respectively. As a result, the impeller can be smoothly activated to drive by controlling a coil current.
First claim
Opening claim text (preview).
The invention claimed is: 1. A centrifugal pump apparatus including a housing having first and second chambers partitioned from each other by a diaphragm, an impeller rotatably provided in said first chamber along said diaphragm, for delivering liquid by centrifugal force during rotation, and a drive unit provided in said second chamber for driving said impeller to rotate via said diaphragm, comprising: a first magnetic material provided in one surface of said impeller; a second…
Assignees
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Classifications
Human Necessities · mapped topic
Human Necessities · mapped topic
- F04D13/0666Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9067005B2 cover?
- A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a permanent magnet provided in one surface of the impeller, a permanent magnet provided in an inner wall of the blood chamber, a permanent magnet provided in the other surface of the impeller, and a magnetic material and a coil provided in a motor chamber for driving the impeller to rotate via a diaphragm. Groo…
- Who is the assignee on this patent?
- Ozaki Takayoshi, Yamada Hiroyuki, Suzuki Kenichi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F04D13/0666. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 30 2015 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).