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AssigneeRobert Bosch GmbH
InventorsThomas Lenzing, Wolfgang Mueller, Dieter Tank, Uwe Konzelmann, Henning Marberg
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A device for measuring at least one parameter of a medium flowing in a line, in particular the intake air mass of an internal combustion engine in which fluid particles and solid particles in the line influence a characteristic curve behavior of a measuring element which is used to determine a parameter of the flowing medium. A protective screen according to the invention deflects fluids and solid particles away from the measuring element in such a way that they are conveyed against an inner wall of the line. In addition, the device stabilizes the flowing medium by generating longitudinal eddies in a flow direction.
In a device (1) for measuring at least one parameter, in particular an air mass flow, of a medium flowing in a line (3), in particular the intake air mass of an internal combustion engine, with a measuring element (34) that the medium flows around, the improvement comprising at least one first means (37, 38, 46) for manipulating the flowing medium placed at least partially upstream of the measuring element (34) inside the line (3), wherein the flowing medium in the line (3) is comprised of different components and the flowing medium in the line (3) has regions of flow and a speed profile, and wherein at least one screen surface (46) is used as a first means (37) for manipulating the components and the speed profile of the flowing medium, and
Dependencies are inferred from the claim text.