Patent ID: 7654157
Filing Date: 2010-02-02
Classification: G01F

Abstract:
1. A flow sensor apparatus for measuring a property related to fluid flow through a flow channel, wherein the cross-sectional size of the flow channel is defined by one or more flow channel inner dimensions, comprising: a housing having at least a portion that extends into the flow channel, but substantially less than all the way across an inner dimension of the flow channel; the housing defining a pitot tube with a bypass channel; the pitot tube having at least two upstream taps spaced apart along said pitot tube and oriented into a direction of fluid flow through said flow channel, the at least two upstream taps collectively functioning as an upstream port for said bypass channel; the pitot tube further having at least two downstream taps spaced apart along said pitot tube and facing perpendicular or substantially perpendicular to said direction of said fluid flow, the at least two downstream taps collectively functioning as a downstream port for said bypass channel; and the bypass channel is configured to direct said fluid from said upstream port, to a sensor that is configured to sense a property related to fluid flow through the flow channel, and finally to the at least two downstream taps.