Patent ID: 6077137
Filing Date: 2000-06-20
Classification: B63H,F01N,F02B

Abstract:
An anti ingestion device, for use with a marine engine, for preventing the ingestion of water and foreign matter, comprising:an exhaust manifold for exhausting engine gases, said exhaust manifold having a first end and a second end, wherein said first end is connected to a cylinder head;a one-way pressure relief valve having a first end coupled to said exhaust manifold and a second end exposed to atmospheric pressure, wherein said one-way pressure relief valve remains closed unless the pressure in the exhaust manifold is less than atmospheric pressure;an air inlet line coupled to said second end of said one-way pressure relief valve, such that said air inlet line serves as a conduit for guiding atmospheric pressure to said one-way pressure relief valve thereby providing atmospheric pressure for passage into said exhaust manifold.