发明名称 Flow sensor including a tube extending from a housing and static and stagnation pressure ports along the tube
摘要 Flow sensor includes a housing having a chamber and a tube extending therefrom. Static and stagnation pressure ports are located along the tube and open in different directions about a periphery. A first conduit fluidly couples the static pressure port to the chamber, and a first pressure sensor senses the fluid pressure in the chamber. A differential pressure sensor has a first port and a second port in the chamber. The first port senses the fluid pressure in the chamber, and a second conduit fluidly couples the stagnation pressure port with the second port. The second port is more exposed to fluid flow through the pipe relative to the first port. Fluid flow rate through the pipe is determinable based on static fluid pressure sensed by the first pressure sensor, differential pressure measured by the differential pressure sensor, density of fluid in the pipe, and diameter of the pipe.
申请公布号 US9322692(B2) 申请公布日期 2016.04.26
申请号 US201414227635 申请日期 2014.03.27
申请人 KCF TECHNOLOGIES, INC.;PARKER HANNIFIN CORPORATION 发明人 Kraige David R.;Loverich Jacob J.;Wenner Stephen J.;Dunn Jason T.;Ellis Shawn D.
分类号 G01F1/88;G01F1/46 主分类号 G01F1/88
代理机构 Oliff PLC 代理人 Oliff PLC
主权项 1. A sensor, comprising: a housing including a body portion and a tube extending from the body portion, the body portion including a chamber; a static pressure port and a stagnation pressure port located along the tube; a static pressure conduit fluidly coupling the static pressure port of the tube to the chamber; a first pressure sensor configured to sense the fluid pressure in the chamber; a second pressure sensor having a first port and a second port, the second pressure sensor being a differential pressure sensor, the first port of the second pressure sensor being exposed to the fluid pressure in the chamber; and a stagnation pressure conduit fluidly coupling the stagnation pressure port of the tube with the second port of the second pressure sensor, wherein, when the static pressure port and the stagnation pressure port are disposed in a pipe having fluid flowing therethrough such that the stagnation pressure port is oriented to be more exposed to the flow relative to the static pressure port, a fluid flow rate through the pipe is determinable based on a static fluid pressure sensed by the first pressure sensor, a differential pressure measured by the second pressure sensor, a density of the fluid in the pipe, and a pre-determined diameter of the pipe.
地址 State College PA US