Magnetically throttled liquefier assembly
US-2016361763-A1 · Dec 15, 2016 · US
Method and device for the electromagnetic stirring of electrically conductive fluids
US8944142B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944142-B2 |
| Application number | US-201314094350-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2013 |
| Priority date | Aug 3, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The invention relates to a method and to a device for the electromagnetic stirring of electrically conductive fluids in the liquid state and/or in the state of onsetting solidification of the fluid, using a rotating magnetic field that is produced in the horizontal plane of a Lorentz force. The aim is to achieve an intensive three-dimensional flow on the inside of the fluid for mixing in the liquid state up to the direct vicinity of solidifying fronts, and to simultaneously ensure an undisturbed, free surface of the fluid. The solution is to change the direction of rotation of the magnetic field rotating in the horizontal plane at regular time intervals in the form of a period duration, wherein the frequency of the directional change of movement of the magnetic field vector is adjusted such that in the state of mixing the liquid fluid a period duration is adjusted between two directional changes of the magnetic field during a time interval as a function of the adjustment time with the condition (I) 0.5·t i.a <T PM <1.5·t i.a and such that, at the beginning of the state of onsetting solidification of the fluid, a period duration is set between two directional changes of the magnetic field in a time interval as a function of the adjustment time with the condition (II) 0.8·t i.a <T PE <4·t i.a , wherein the adjustment time; is specified by the equation (III) in which after an activation of the rotating magnetic field in a fluid in the resting state the double vortex of the meridional secondary flow forms, and in which σ is defined as the electric conductivity, ρ as the density of the fluid, ω as the frequency, B 0 as the amplitude of the magnetic field, and C g as the constant for the influence of the size and shape of the volume of the fluid.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for the electromagnetic stirring of electrically conductive fluids in the liquid state and/or in the state at the beginning of the solidification of the fluid by using a rotating magnetic field which produces a Lorentz force in the horizontal plane, which comprises the direction of rotation of the magnetic field rotating in the horizontal plane is changed in regular time intervals in the form of a period (T P ), the frequency of the change in d…
Assignees
Inventors
Classifications
- B22D27/02Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8944142B2 cover?
- The invention relates to a method and to a device for the electromagnetic stirring of electrically conductive fluids in the liquid state and/or in the state of onsetting solidification of the fluid, using a rotating magnetic field that is produced in the horizontal plane of a Lorentz force. The aim is to achieve an intensive three-dimensional flow on the inside of the fluid for mixing in the li…
- Who is the assignee on this patent?
- Helmholtz Zentrum Dresden, Univ Dresden Tech
- What technology area does this patent fall under?
- Primary CPC classification B22D27/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 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).