Patent ID: 6176131
Filing Date: 2001-01-23
Classification: G01F

Abstract:
A device for measuring the mass of a flowing medium, in the intake air mass of internal combustion engines, comprising a plate-shaped sensor element (2) that is accommodated in a recess (20) of a sensor support (1), a region (3) of the sensor element includes at least one measurement resistor, said sensor region is exposed to the flowing medium and is secured in the recess at a raised area of a bottom surface of the recess by means of an adhesive, an evaluation circuit (11) for evaluating electrical signals received from the measurement resistor, wherein a gap (23, 24) remains between the sensor element and wall surfaces (27) defining the recess, at least partial regions of the evaluation circuit (11) and partial regions (34) of the sensor element (2) are covered by a protective coating (42) and the gap (23, 24) has at least one enlargement indentation (45) between the wall surfaces (27) by which a flow of the protective coating (42) which partially fills the gap (23, 24) is prevented from flowing beyond the at least one enlargement indentation (45).