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US-12109404-B2 · Oct 8, 2024 · US
Turbomachine provided with a magnetic drive pump
US12442385B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12442385-B2 |
| Application number | US-202218565441-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 1, 2022 |
| Priority date | Jun 3, 2021 |
| Publication date | Oct 14, 2025 |
| Grant date | Oct 14, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A turbomachine including a rotary body including a motor shaft supplying mechanical power, and at least one magnetic drive pump including at least: one stator delimiting an annular inner space and including a first and a second flange, a rotor arranged in the inner space between the first and second flanges and capable of driving fluid, the rotor being able to rotate about an axis of rotation, a pair of magnets having opposite polarities coaxially arranged on the rotor with the axis of rotation, a magnet arranged on the first flange in order to co-operate with one of the magnets of the pair of magnets of the rotor, a magnetic rotator for rotating the rotor arranged on the second flange, the second flange being non-magnetic.
First claim
Opening claim text (preview).
The invention claimed is: 1. A turbomachine comprising a rotary body comprising a motor shaft supplying mechanical power, and at least one magnetic drive pump comprising at least: a stator delimiting an annular internal volume and comprising a first flange and a second flange, a rotor arranged in the internal volume between the first flange and the second flange and capable of driving a fluid, the rotor being able to rotate about an axis of rotation, a pair of magnets having opposite polarities coaxially arranged on the rotor with the axis of rotation, a magnet arranged on the first flange to cooperate with one of the magnets of the pair of magnets of the rotor, and means for magnetically driving the rotor in rotation arranged on the second flange, the second flange being non-magnetic. 2. The turbomachine according to claim 1 , wherein the magnetic drive means comprises a drive shaft mechanically coupled to the motor shaft of the rotary body of the turbomachine and a pair of magnets having opposite polarities arranged coaxially with the axis of rotation and secured to the drive shaft, and the second flange comprises a bearing housing said pair of magnets of the magnetic drive means. 3. The turbomachine according to claim 2 , wherein the magnets of the pair of magnets arranged on the rotor, the magnet arranged on the first flange and the magnets of the magnetic drive means are permanent magnets. 4. The turbomachine according to claim 2 , wherein the magnets of the pair of magnets arranged on the rotor, the magnet arranged on the first flange and the magnets of the magnetic drive means form a row of magnets of alternating polarities. 5. The turbomachine according to claim 1 , wherein the at least one magnetic drive pump is of the liquid ring, lateral channel, gerotor, centrifugal or positive displacement gear type. 6. The turbomachine according to claim 1 , wherein at least one pump of the at least one magnetic drive pumps is arranged to supply the turbomachine with fuel or lubricant. 7. An aircraft comprising at least one turbomachine according to claim 1 .
Assignees
Inventors
Classifications
- F02C7/22Primary
Fuel supply systems · CPC title
Rotary-piston machines or pumps with fluid ring or the like (such pumps specially adapted for elastic fluids F04C19/00) · CPC title
of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member · CPC title
Magnetic couplings · CPC title
Port members in the form of side plates · CPC title
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Frequently asked questions
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- What does patent US12442385B2 cover?
- A turbomachine including a rotary body including a motor shaft supplying mechanical power, and at least one magnetic drive pump including at least: one stator delimiting an annular inner space and including a first and a second flange, a rotor arranged in the inner space between the first and second flanges and capable of driving fluid, the rotor being able to rotate about an axis of rotation, …
- Who is the assignee on this patent?
- Safran Helicopter Engines
- What technology area does this patent fall under?
- Primary CPC classification F02C7/22. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 14 2025 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).