Patent ID: 6840101
Filing Date: 2005-01-11
Classification: G01F

Abstract:
1. A device ( 1 ) for determining at least one parameter, in particular a volume flow, of a medium flowing in a line ( 3 , 22 ), which medium is in the form of a gas/fluid/solid particle mixture, in particular the intake air mixture of an internal combustion engine, the device comprising at least one measuring element ( 45 ), which is disposed in the line ( 3 ) and which the medium circulates around, at least one protective screen ( 25 ), which is disposed at least partially upstream of the measuring element ( 45 ) inside the line ( 3 , 22 ), the protective screen ( 25 ) having slats ( 52 ), which are inclined at a particular deflection angle in relation to a center line ( 35 ) of the line ( 3 , 22 ), the slats ( 52 ) constituting screen openings ( 29 ) and conduits ( 63 ), which at least partially deflect the medium flowing in a main flow direction ( 12 ) downstream of the protective screen ( 25 ), and at least one element ( 70 ) in the line ( 3 , 22 ) downstream of the protective screen ( 25 ) for influencing the movement paths ( 60 ) of solid particles differently.