Turbo compressor

US9416681B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9416681-B2
Application numberUS-201314141510-A
CountryUS
Kind codeB2
Filing dateDec 27, 2013
Priority dateJul 13, 2011
Publication dateAug 16, 2016
Grant dateAug 16, 2016

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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

    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.

A turbo compressor includes a housing in which lubrication oil is accumulated, a gear that is housed in the housing and to which the lubrication oil is supplied, a demister that is disposed above the gear and on which an intake is provided to catch oil mist of the lubrication oil in the housing, a gear cover that is provided surrounding the gear to catch lubrication oil splashed by the gear and then drip the caught lubrication oil downward, and a demister cover that is disposed near the demister to drip the lubrication oil caught by the demister downward. Here, a narrow gap is formed between the demister cover and an inner wall surface of the housing. According to the turbo compressor, an amount of lubrication oil flowing through the demister can be reduced by the gear cover and the demister cover.

First claim

Opening claim text (preview).

What is claimed is: 1. A turbo compressor comprising: a housing in which lubrication oil is accumulated; a gear that is housed in the housing and to which the lubrication oil is supplied; a demister that is disposed above the gear and on which an intake is provided to catch oil mist of the lubrication oil in the housing; a gear cover that is provided surrounding the gear to catch lubrication oil splashed by the gear and then drip the caught lubrication oil downward; and a demister cover that is disposed near the demister to drip the lubrication oil caught by the demister downward, wherein a narrow gap is formed between the demister cover and an inner wall surface of the housing. 2. The turbo compressor according to claim 1 , wherein a lower end edge of the gear cover counter to a rotational direction of the gear is extended downward further than an opposed-side lower end edge. 3. The turbo compressor according to claim 1 , wherein a total area of the narrow gap is made larger than an opening area of the intake of the demister. 4. The turbo compressor according to claim 1 , wherein the demister includes at least one intake. 5. The turbo compressor according to claim 4 , wherein an area of the narrow gap is larger than an opening area of the at least one intake.

Assignees

Inventors

Classifications

  • Multi-stage pumps · CPC title

  • Units comprising pumps and their driving means · CPC title

  • F01D25/18Primary

    Lubricating arrangements (of machines or engines in general F01M) · CPC title

  • specially adapted for elastic fluid pumps · CPC title

  • F04D25/163Primary

    driven by a common gearing arrangement · CPC title

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Frequently asked questions

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What does patent US9416681B2 cover?
A turbo compressor includes a housing in which lubrication oil is accumulated, a gear that is housed in the housing and to which the lubrication oil is supplied, a demister that is disposed above the gear and on which an intake is provided to catch oil mist of the lubrication oil in the housing, a gear cover that is provided surrounding the gear to catch lubrication oil splashed by the gear and…
Who is the assignee on this patent?
Daikin Ind Ltd
What technology area does this patent fall under?
Primary CPC classification F01D25/18. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Aug 16 2016 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).