Ejector

US2020080572A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020080572-A1
Application numberUS-201916562617-A
CountryUS
Kind codeA1
Filing dateSep 6, 2019
Priority dateSep 10, 2018
Publication dateMar 12, 2020
Grant date

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  1. Title

    What the patent document calls the invention.

  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

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An ejector includes: a Laval nozzle in which a first channel which has a throat and along which a fluid flows in a first direction is formed; and a main body which is formed in a tubular shape, in which the Laval nozzle disposed therein is fixed to a part of an inner surface thereof, and in which a second channel is formed between the rest of the inner surface and the Laval nozzle. The second channel is disposed at a first side with respect to the first channel in a second direction perpendicular to the first direction, and an opening formed in an end of the first channel at a downstream side is inclined to be approaching to the first side toward the downstream side.

First claim

Opening claim text (preview).

What is claimed is: 1 . An ejector comprising: a Laval nozzle in which a first channel which has a throat and along which a fluid flows in a first direction is formed; and a main body having a tubular shape and having a second channel, the Laval nozzle being disposed in the main body and fixed to part of an inner surface of the main body and the second channel being formed between the rest of the inner surface and the Laval nozzle, wherein the second channel is disposed at a first side with respect to the first channel in a second direction perpendicular to the first direction, and wherein an opening formed in an end of the first channel at a downstream side is inclined toward the first side in the downstream direction. 2 . The ejector according to claim 1 , wherein an angle formed by the first direction and the opening is greater than 0° and smaller than 90°. 3 . The ejector according to claim 1 , wherein a Mach number of a flow velocity of the fluid flowing in the throat is 1. 4 . The ejector according to claim 2 , wherein a Mach number of a flow velocity of the fluid flowing in the throat is 1.

Assignees

Inventors

Classifications

  • F04F5/465Primary

    with supersonic flow (mixing of supersonic fluids B01F25/20) · CPC title

  • F04F5/20Primary

    for evacuating · CPC title

  • with a plurality of nozzles arranged in parallel · CPC title

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Frequently asked questions

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What does patent US2020080572A1 cover?
An ejector includes: a Laval nozzle in which a first channel which has a throat and along which a fluid flows in a first direction is formed; and a main body which is formed in a tubular shape, in which the Laval nozzle disposed therein is fixed to a part of an inner surface thereof, and in which a second channel is formed between the rest of the inner surface and the Laval nozzle. The second c…
Who is the assignee on this patent?
Japan Aerospace Exploration
What technology area does this patent fall under?
Primary CPC classification F04F5/465. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Mar 12 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).