Exhaust structure for small watercraft

Details Exhaust structure for small watercraft Exhaust structure for small watercraft

B - Operations, Transporting

63

H

B63H 11/08 (2006.01) F01N 13/12 (2010.01) B63B 35/73 (2006.01) B63H 21/32 (2006.01) F01N 3/04 (2006.01)

Patent

CA 2578885

To provide an exhaust structure for a small watercraft that can cool exhaust gas, reduce the size and weight, and thereby cost of a backflow prevention chamber. An exhaust structure for a small watercraft is configured to be able to cool exhaust gas in the course of leading it to the outside when the exhaust gas of an engine is led to the outside for discharge. This exhaust structure includes a water muffler containing water therein and provided in the course of leading exhaust gas to the outside, and a backflow prevention chamber disposed above the water muffler and adapted to prevent water from entering the side of the engine from the side of the water muffler. The backflow prevention chamber is provided with a cooling water injecting portion adapted to spray cooling water to the exhaust gas in an internal space. An outlet is formed in the bottom portion of the backflow prevention chamber so as to communicate with the water muffler.

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