Electric propulsion

US9103329B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9103329-B2
Application numberUS-200913133342-A
CountryUS
Kind codeB2
Filing dateDec 17, 2009
Priority dateDec 23, 2008
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electric propulsion system comprising a plasma chamber having first and second apertures for producing ion beams. Respective first and second coils are arranged about the chamber to produce an electromagnetic field in regions adjacent to the apertures, and are driven differentially by a radio frequency (RF) drive module. By driving the coils differentially, the electric field in the region of the two apertures can be differentially controlled, and a variation of output thrusts at the two apertures is possible. In this way a net thrust can be produced, which net thrust is varied by controlling the drive to the two coils.

First claim

Opening claim text (preview).

The invention claimed is: 1. An electric propulsion system comprising: a plasma chamber for containing plasma and having first and second apertures for producing ion beams in use, each of the ion beams generating a thrust; a first coil arranged about the chamber and adapted to produce an electromagnetic field in a first region of the chamber adjacent to said first aperture; a second coil arranged about the chamber and adapted to produce an electromagnetic field in a second reg…

Assignees

Inventors

Classifications

  • F03H1/0056Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US9103329B2 cover?
An electric propulsion system comprising a plasma chamber having first and second apertures for producing ion beams. Respective first and second coils are arranged about the chamber to produce an electromagnetic field in regions adjacent to the apertures, and are driven differentially by a radio frequency (RF) drive module. By driving the coils differentially, the electric field in the region o…
Who is the assignee on this patent?
Corbett Michael Henry, Wallace Neil Charles, Qinetiq Ltd
What technology area does this patent fall under?
Primary CPC classification F03H1/0056. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Aug 11 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).