Invention Grant
- Patent Title: Ball valve with modal silencer
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Application No.: US15445294Application Date: 2017-02-28
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Publication No.: US10221963B2Publication Date: 2019-03-05
- Inventor: Daniel J. Eilers , Allen C. Fagerlund
- Applicant: FISHER CONTROLS INTERNATIONAL LLC
- Applicant Address: US IA Marshalltown
- Assignee: FISHER CONTROLS INTERNATIONAL LLC
- Current Assignee: FISHER CONTROLS INTERNATIONAL LLC
- Current Assignee Address: US IA Marshalltown
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: F16K47/02
- IPC: F16K47/02 ; F16K5/06 ; F16K47/04

Abstract:
A ball valve may include a control element including a perforated screen disposed within the control element and spaced apart from an inner surface of the control element to form an annular space and a plurality of chambers disposed within the control element. When fluid flows through the control element, sound waves pass through the perforated screen and are reflected back by the plurality of chambers to disrupt other sound waves, thereby reducing fluid noise in the rotary valve.
Public/Granted literature
- US20180245713A1 BALL VALVE WITH MODAL SILENCER Public/Granted day:2018-08-30
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