Centrifugal compressor without external drainage system, motorcompressor and method of avoiding external drainage in a compressor

US10830255B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10830255-B2
Application numberUS-201716077342-A
CountryUS
Kind codeB2
Filing dateMar 6, 2017
Priority dateMar 8, 2016
Publication dateNov 10, 2020
Grant dateNov 10, 2020

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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

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A compressor has a lower inlet with an intake plenum and an upper outlet with a discharge scroll; the compressor includes a plurality of drainage pipes ending at the intake plenum.

First claim

Opening claim text (preview).

What is claimed is: 1. A centrifugal compressor comprising: a vertical axis; a lower inlet with an intake plenum comprising an upper convergent portion; an upper outlet with a discharge scroll; and a plurality of drainage pipes ending at the upper convergent portion of the intake plenum, wherein the compressor is configured to process the drained liquid accumulated in the intake plenum. 2. The centrifugal compressor of claim 1 , wherein at least the end portions of the drainage pipes are inclined with respect to the vertical axis and/or skew with respect to the vertical axis. 3. The centrifugal compressor of claim 1 , wherein the centrifugal compressor comprises a plurality of impellers, wherein at least the first impeller is resistant to liquid droplets. 4. A centrifugal compressor comprising: a shaft; a vertical axis; a lower inlet with an intake plenum; an upper outlet with a discharge scroll; a plurality of drainage pipes ending at the intake plenum; and a bearing device located in an upper convergent portion of the intake plenum to guide and/or support the shaft, wherein the compressor is configured to process the drained liquid accumulated in the intake plenum. 5. The centrifugal compressor of claim 4 , wherein the centrifugal compressor has a casing, wherein the bearing device has a housing, and wherein the housing is connected to the casing through a plurality of struts. 6. The centrifugal compressor of claim 5 , wherein electric wires and/or pipes are associated to the struts. 7. The centrifugal compressor of claim 4 , wherein a cylindrical shell is located below the bearing device and covers electric wires. 8. A motorcompressor comprising the centrifugal compressor of claim 1 and a motor to drive the centrifugal compressor. 9. The centrifugal compressor of claim 1 , wherein liquid drained inside the compressor is fed to a region of the intake plenum where the magnitude and/or the direction of the speed of the working fluid is/are such to entrain the fed drained liquid.

Assignees

Inventors

Classifications

  • the casing being vertically split · CPC title

  • especially adapted for elastic fluid pumps · CPC title

  • Drainage · CPC title

  • Pumping liquids and elastic fluids at the same time · CPC title

  • F04D29/706Primary

    Humidity separation · CPC title

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What does patent US10830255B2 cover?
A compressor has a lower inlet with an intake plenum and an upper outlet with a discharge scroll; the compressor includes a plurality of drainage pipes ending at the intake plenum.
Who is the assignee on this patent?
Nuovo Pignone Tecnologie Srl
What technology area does this patent fall under?
Primary CPC classification F04D29/706. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Nov 10 2020 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).