Patent ID: 7305877

Claim:
A device for determining at least one parameter of a medium flowing in a main flow direction ( 18 ) in a line for determining the air mass flow rate in the intake manifold of an internal combustion engine, comprising: a line component ( 3 ) that forms a line through-channel, and a sensor device ( 1 ) having a bypass part ( 6 ), which is situated in the line component ( 3 ) so that a partial stream of the medium flowing in the line component enters an inlet area ( 27 ) of a channel structure formed in the bypass part, the inlet area ( 27 ) having a removal opening ( 33 ) which opens into the line through-channel at at least one of two sidewalls ( 16 , 17 ) of the bypass part ( 6 ) that extend parallel to the main flow direction ( 18 ), wherein a flow diversion element ( 2 ) is situated in the line component ( 3 ) upstream from the bypass part ( 6 ) with respect to the main flow direction ( 18 ) and has at least one diversion surface ( 20 ) facing the main flow direction ( 18 ), which, starting from an apex line ( 25 ) located at a distance from the bypass part ( 6 ), curves evenly on both sides toward the two sidewalls ( 16 , 17 ) so that the ends ( 38 ) of the diversion surface ( 20 ) that face away from the apex line are aligned with the sidewalls ( 16 , 17 ).