Dust deflector for silicon mass airflow sensor

Details Dust deflector for silicon mass airflow sensor Dust deflector for silicon mass airflow sensor

G - Physics

01

F

G01F 1/44 (2006.01) G01F 1/684 (2006.01) G01F 5/00 (2006.01) G01F 15/12 (2006.01)

Patent

CA 2060188

2060188 9102224 PCTABS00003 The silicon sensing element of a mass airflow sensor is shielded from direct impact by large dust particles by means of a plastic deflector that is disposed in spaced upstream relationship to the entrance of a by-pass venturi containing the sensor. The deflector is supported on a mesh screen and is arranged such that air can enter the by-pass venturi after having passed by and behind the deflector. In another embodiment the deflector is an airfoil that is part of a probe assembly containing the sensing element.

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