Water jet propeller

Details Water jet propeller Water jet propeller

B - Operations, Transporting

63

H

B63H 11/00 (2006.01)

Patent

CA 2516631

To provide a water jet propeller that enables an efficient flow of water from a water flow duct to an impeller housing even with an inner periphery of the impeller housing having an inside diameter smaller than the inside diameter of a rear end portion of the water flow duct. A water jet propeller is constructed as follows. Specifically, a stator is disposed at a rear end portion of an impeller housing. An impeller is disposed inside the impeller housing. The water jet propeller expels a water jet by rotating the impeller. The water jet propeller is further constructed as follows. Specifically, the impeller is disposed so as to circumvent a front end portion of an inner periphery of the impeller housing. The impeller housing includes a liner disposed over a region facing the impeller and representing the inner periphery of the impeller housing less the front end portion. The front end portion is formed to have an inside diameter that gradually increases forwardly.

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