Variable Capacity Compressor

US9011109B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9011109-B2
Application numberUS-201113805818-A
CountryUS
Kind codeB2
Filing dateMay 31, 2011
Priority dateJun 21, 2010
Publication dateApr 21, 2015
Grant dateApr 21, 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.

In a swash plate type variable capacity compressor that changes a stroke of a piston by controlling the pressure of a crank chamber ( 6 ), lubrication oil contained in refrigerant gas is maximally prevented from being circulated outside the compressor. Some of discharged refrigerant gas in a discharge chamber ( 22 ) flows into the crank chamber ( 6 ) through a communication passage ( 25 ) ( 25 a and 25 b ) and a control valve ( 27 ), while some of the discharged refrigerant gas flows out to a suction chamber ( 21 ) from the crank chamber ( 6 ) through a second communication passage ( 26 ) and an orifice ( 28 ), and the pressure of the crank chamber ( 6 ) is controlled through a balance between an inflow amount and an outflow amount. Oil storage chamber ( 30 ) extends downstream of the control valve ( 27 ) on the first communication passage ( 25 ) to separate oil and store the separated oil. Oil return passage ( 31 ) returns the oil stored in the oil storage chamber ( 30 ) to the crank chamber ( 6 ).

First claim

Opening claim text (preview).

The invention claimed is: 1. A variable capacity compressor including a piston which compresses refrigerant gas containing lubrication oil drawn from a suction chamber to discharge the compressed refrigerant gas to a discharge chamber, a crank chamber disposed in the rear of the piston, a first communication passage which allows the discharge chamber and the crank chamber to communicate with each other, a second communication passage which allows the crank chamber and the suction c…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • F04B41/00Primary

    Mechanical Engineering · mapped topic

  • F04B27/109Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

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What does patent US9011109B2 cover?
In a swash plate type variable capacity compressor that changes a stroke of a piston by controlling the pressure of a crank chamber ( 6 ), lubrication oil contained in refrigerant gas is maximally prevented from being circulated outside the compressor. Some of discharged refrigerant gas in a discharge chamber ( 22 ) flows into the crank chamber ( 6 ) through a communication passage ( 25 ) ( 25 …
Who is the assignee on this patent?
Ishikawa Tsutomu, Terauchi Satoshi, Sanden Corp
What technology area does this patent fall under?
Primary CPC classification F04B41/00. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 21 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).