Pressure averaging sense tube for gas regulator,申请号US20080099463-传众专利搜索

Pressure averaging sense tube for gas regulator

申请公布号：US8336574(B2)

申请号：US20080099463

申请日期：2008.04.08

申请公布日期：2012.12.25

申请人：

KRANZ SETH;LOSH JOSEPH;FISHER CONTROLS INTERNATIONAL LLC

发明人：KRANZ SETH;LOSH JOSEPH

分类号：F16K31/165;F16K31/365

主分类号：F16K31/165

摘要：A regulator comprises a regulator valve and an actuator. The actuator is coupled to the regulator valve and comprises a control element for controlling the flow of fluid through the regulator valve. The actuator is additionally equipped with a pressure averaging sense tube to sense the actual pressure at the outlet of the regulator valve. The actual pressure is then supplied to a sensing element such as a diaphragm of the actuator to adjust the position of the control element. The pressure averaging sense tube includes an open sensing end and an elongated slot. The elongated slot advantageously senses and averages the pressure across the length of the sense tube to maximize the accuracy of the pressure signal supplied to the sensing element.