Marine propulsion device

Details Marine propulsion device Marine propulsion device

B - Operations, Transporting

63

H

115/3

B63H 21/32 (2006.01) F01N 13/00 (2010.01) F01N 13/12 (2010.01) F02B 61/04 (2006.01)

Patent

CA 1321926

ABSTRACT OF THE DISCLOSURE A marine propulsion device comprising a propulsion unit including an internal combustion engine, the engine comprising a cylinder, a water jacket, a water jacket inlet port communicating with the water jacket, and a lower face having therein an exhaust outlet port communicating with the cylinder, the propulsion unit also including a drive shaft housing having a lower end, a gearcase connected to the lower end of the drive shaft housing, a propeller rotatably supported by the gearcase, a drive shaft which extends through the drive shaft housing and which includes an upper end driven by the engine and a lower end drivingly connected to the propeller, and an exhaust housing located at least partially within the drive shaft housing and connected to the lower face of the engine, the exhaust housing comprising an exhaust passage located interiorly of the exhaust housing and communicating with the exhaust outlet port, a water intake port, and a water intake passage located interiorly of the exhaust housing and communicating between the water intake port and the water jacket inlet port, and a water pump having an outlet communicating with the water intake port.

593599

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