Mass airflow sensor

Details Mass airflow sensor Mass airflow sensor

1993-02-04

1994-01-18

Chilcot, Jr., Richard E.

Measuring and testing

Volume or rate of flow

Proportional

7320421, G01F 500, G01F 168

Patent

active

052791556

ABSTRACT:
A mass airflow sensor is provided with a system of conduits and ports which connect the mass airflow sensor to a main fluid flow channel. Pairs of ports connect the plurality of fluid interconnection conduits with the main fluid flow conduit being monitored. The mass airflow sensing apparatus is adapted to receive a mass airflow sensor in fluid communication with its system of conduits. First and second pairs of ports are disposed upstream from a third and fourth pair of ports. The first and second pairs of ports are connected to each other in a way which provides an average flow from each of the pairs to an inlet of the mass airflow sensor. In a particularly preferred embodiment of the present invention, the outlet of the mass airflow sensor is connected to an arrangement of conduits and ports that is a mirror image of the upstream arrangement of conduits and ports.

REFERENCES:
patent: 3559482 (1971-02-01), Baker et al.
patent: 4431132 (1984-02-01), Edmundson
patent: 4749122 (1988-06-01), Shriver
patent: 4776214 (1988-10-01), Moran et al.
patent: 4856328 (1989-08-01), Johnson
patent: 4864724 (1989-09-01), Bergstrom
patent: 4885938 (1989-12-01), Higashi
Paper by P. W. Ross "A Novel Design of Viscous Flowmeter" Sep. 1981.
Paper by K. A. Blake "The design of piezometer rings" 1976.

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