Water jet propeller

B - Operations – Transporting – 63 – H

Patent

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Details

B63H 11/08 (2006.01) B63B 13/02 (2006.01) F02B 61/04 (2006.01) F01P 11/06 (2006.01)

Patent

CA 2388411

To simplify a mounting job for a filter and a lid at a water intake port. A filter accommodation chamber 31g of a cylindrical shape forming a water intake port is provided in a side wall of a stator 31 having therein an impeller 32 disposed rotatably. A filter 40 of a cylindrical shape is placed in the filter accommodation chamber 31g and an opening 31h in the filter accommodation chamber is closed by a lid 50 of a circular shape through either screwing or press-fitting. A flow path 31j is integrally formed with a peripheral wall of the filter accommodation chamber 32g. A bottom portion 46 of the cylindrical filter 40 is formed into an inclined surface. An inclined step portion 31n, which is abutted against an edge portion 47 of the inclined surface of filter, is formed in the filter accommodation chamber 31g. In addition, an opening 44, which communicates with the flow path 31j when the inclined surface edge portion of the cylindrical filter and the inclined step portion are abutted against each other so that the two are brought into coincidence with each other, is formed in the cylindrical filter. Part of an inner peripheral surface of the filter accommodation chamber and part of an outer peripheral surface of the cylindrical filter may be formed into a flat surface.

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