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Abstract

An anti ingestion device for use with an engine, preferably a marine engine. The device comprises an exhaust manifold or riser system for exhausting engine gases, wherein the exhaust manifold has a first end and a second end, and the first end is connected to a cylinder head. There is a one-way pressure relief valve having a first end and a second end, wherein the first end is coupled to the exhaust manifold and the second end is exposed to atmospheric pressure. An air inlet line is coupled to the second end of the one-way pressure relief valve, such that the air inlet line serves as a conduit for guiding atmospheric pressure to the one-way pressure relief valve, thereby providing atmospheric pressure for passage into the exhaust manifold.

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First Claim