Variable suction device for an A/C compressor to improve nvh by varying the suction inlet flow area

US9488289B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9488289-B2
Application numberUS-201414154568-A
CountryUS
Kind codeB2
Filing dateJan 14, 2014
Priority dateJan 14, 2014
Publication dateNov 8, 2016
Grant dateNov 8, 2016

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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A variable displacement compressor for an air conditioning system includes a suction throttle valve. The suction throttle valve includes a housing with a cavity formed therein. A first piston reciprocatingly disposed in the cavity is configured to cause a variable restriction of a flow of refrigerant through a suction inlet formed in the housing. The suction inlet provides fluid communication between a suction port and the cavity formed in the housing. The refrigerant flows through the suction port in a direction that is not parallel to a direction the piston reciprocates within the cavity. The suction throttle valve is configured to increase the restriction in the suction inlet when a crankcase pressure associated with the variable displacement compression is increased relative to an external suction pressure of the refrigerant entering the suction throttle valve.

First claim

Opening claim text (preview).

What is claimed is: 1. A suction throttle valve for a variable displacement compressor having a compressor housing including a crankcase chamber and a suction chamber formed therein, the suction throttle valve comprising: a valve housing with a cavity formed therein, the valve housing including a suction inlet formed therein; a suction port extending laterally from the valve housing, wherein the suction inlet provides fluid communication between the suction port and the cavity f…

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What does patent US9488289B2 cover?
A variable displacement compressor for an air conditioning system includes a suction throttle valve. The suction throttle valve includes a housing with a cavity formed therein. A first piston reciprocatingly disposed in the cavity is configured to cause a variable restriction of a flow of refrigerant through a suction inlet formed in the housing. The suction inlet provides fluid communication b…
Who is the assignee on this patent?
Halla Visteon Climate Control, Hanon Systems
What technology area does this patent fall under?
Primary CPC classification F16K11/105. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Nov 08 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).