Brunswick Corporation

Scott C Morton

Andrew J Przybyl

Ronald L Hall

Daniel B Slanker

John A Voit

Sunil K R Patil

A marine engine exhaust system has an exhaust conduit conveying engine exhaust gas from upstream to downstream, a sensor sensing oxygen content of the exhaust gas in the conduit, and a shield located in the conduit. The shield is configured to shield the sensor from deleterious effects of liquid when liquid and exhaust gas is reverted in the exhaust conduit from downstream to upstream.

Marine engine exhaust systems having an oxygen sensor

An apparatus for intake of air to an outboard motor includes an inlet receiving a mixture of air and water from atmosphere surrounding the outboard motor and an outlet discharging the air. A conduit extends between the inlet and the outlet. The conduit has a vertically downwardly oriented first flow path, a vertically upwardly oriented second flow path, and a junction joining the first and second flow paths. The junction is oriented with respect to the first and second flow paths such that both centrifugal and gravitational forces separate the water from the air as the mixture flows therethrough.

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Fond du Lac, WI, United States of America

Scott C Morton