A marine outboard motor (2) is provided with an internal combustion engine (30) comprising an engine block defining at least one cylinder(33a-33c), an air intake (93) configured to deliver a flow of air to the at least one cylinder; and an air intake duct (200) forming part of an air intake path for delivering the flow of air to the air intake. The engine further includes a flow sensing arrangement(210)located in theair intake duct and comprising a flow meter (211) configured to generate a signal indicative of a flow rate of the flow of air through the air intake duct, and a bluff body (212) located in the air intake duct upstream of the flow meter, wherein the flow meter is a vortex shedding flow meter.
Marine outboard motor with improved flow sensing
04.11.2021
Patent
Elektronische Ressource
Englisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / G01F Messen des Volumens, des Durchflussvolumens, des Massendurchflusses oder des Füllstandes , MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL |