Air flow sensor

Details Air flow sensor Air flow sensor

1984-08-10

1986-02-25

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Proportional

G01F 500

Patent

active

045719969

ABSTRACT:
An air flow sensor (10) as may be used to measure input air to an internal combustion engine has an aerodynamically designed impact tube (16) for diverting bypass air to a pair of sensors (28, 30). Downstream from the impact tube (16) is a venturi section providing exhaust means for the bypass air. The exhaust path configuration for the bypass air shields the sensors (28, 30) from a reverse pressure wave which can result from an engine backfire. The impact tube (16) operates to integrate the air velocity over a full radius of the air flow body (14).

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