Device for sensing air flow

Details Device for sensing air flow Device for sensing air flow

1988-12-01

1989-12-05

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

7386161, 128725, G01F 140

Patent

active

048844608

ABSTRACT:
A venturi device is provided for sensing air flow. The device includes a body having first and second substantially cylindrical end portions interconnected by a wasp-waisted intermediate portion. The end portions are provided with bores which may be of different internal diameter. The intermediate portion is provided with axially aligned counterbores. These counterbores are connected by four bores of relatively small diameter. A radially inwardly extending wall in the through-bore comprises a flow restriction, and lateral bores are provided on opposite sides of the wall extending radially outwardly from the through-bore.

REFERENCES:
patent: 2760371 (1956-08-01), Borden
patent: 4040293 (1977-08-01), Wilson
patent: 4047521 (1977-09-01), Kramer et al.

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