Airflow sensor

Details Airflow sensor Airflow sensor

2007-07-17

2007-07-17

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

Reexamination Certificate

active

11402960

ABSTRACT:
An airflow sensor for use in a conduit. The sensor comprises stacked first, second and third portions positioned, in use, in the conduit to define a hub and a plurality of tubes. The hub is centrally disposed in the conduit and has first and second interior chambers, a streamlined upstream-facing surface, a downstream-facing surface and a sidewall connecting said upstream and downstream facing surfaces, said sidewall having defined therein one or more static pressure ports through which the first chamber communicates with the conduit interior. The tubes extend radially from the hub, transverse to the flow. Each tube has a streamlined upstream-facing surface having defined therein one or more total pressure ports; a downstream-facing surface; and an interior passage communicating with the second chamber and communicating with the conduit interior through said total pressure ports. Each static pressure port is located downstream from a respective tube.

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