Impeller of centrifugal compressor

US9140271B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9140271-B2
Application numberUS-201013381064-A
CountryUS
Kind codeB2
Filing dateAug 10, 2010
Priority dateDec 2, 2009
Publication dateSep 22, 2015
Grant dateSep 22, 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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Interference of a leakage vortex flow generated at the tip end side of the full blade with the leading edge of the splitter blade is avoided and high pressure ratio and enhanced efficiency can be achieved. A throat of am impeller is formed so that a distance from a leading edge of a rear side full blade on the rear side of the rotation direction of the compressor to a front side full blade adjacent to the rear side full blade is minimized, and the leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the mutually adjacent full blades, on the downstream side of a leakage vortex line formed to connect the middle location of the throat to the leading edge of the front side full blade.

First claim

Opening claim text (preview).

The invention claimed is: 1. An impeller of a centrifugal compressor, the impeller comprising: a plurality of full blades provided from a fluid inlet side to a fluid outlet side on a hub surface, the full blades being provided side by side; a plurality of splitter blades provided in a flow passage formed between a pair of the mutual adjacent full blades from a part way of the flow passage to the outlet side, wherein, in a cross section view depicting a geometry along a tip e…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • F04D29/284Primary

    Mechanical Engineering · mapped topic

  • F04D29/30Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US9140271B2 cover?
Interference of a leakage vortex flow generated at the tip end side of the full blade with the leading edge of the splitter blade is avoided and high pressure ratio and enhanced efficiency can be achieved. A throat of am impeller is formed so that a distance from a leading edge of a rear side full blade on the rear side of the rotation direction of the compressor to a front side full blade adja…
Who is the assignee on this patent?
Sugimoto Koichi, Iwakiri Kenichiro, Tomita Isao, and 1 more
What technology area does this patent fall under?
Primary CPC classification F04D29/284. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Sep 22 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).