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특허 상세정보

Fluid flow control valve with maximized noise reduction

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-047/02    F16K-047/14   
미국특허분류(USC) 137/375 ; 137/62538 ; 137/6253 ; 251/127
출원번호 US-0947265 (1978-09-29)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 54  인용 특허 : 4
초록

The valve includes a perforated cage and a perforated closed end tube operating as two sequential stages of restriction and pressure drop for the fluid flowing through the valve. A movable plug cooperates with the cage to control the net amount of flow restriction presented to the fluid, and hence to control the pressure drop across the valve and the rate of fluid flow through the valve. The tube perforations are sized to turn back the practical maximum of the first stage noise into the tube, and the latter is lined with material which absorbs a maximum ...

대표
청구항

In a fluid flow control valve having a fluid path, means for controlling the effective area of said path, and a perforated member having its perforations located in fluid pressure dropping relationship in said path, the improvement for minimizing the noise produced by the passage of fluid through said perforations, comprising a perforated wall located in cooperative relation to said perforated member to form a chamber on the downstream side of said member perforations, the wall perforations in said wall being of a size to establish a maximized noise cuto...

이 특허를 인용한 특허 피인용횟수: 54

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