摘要 |
PROBLEM TO BE SOLVED: To provide a water jet pump capable of reducing cavitation and capable of improving pump efficiency. SOLUTION: In this water jet pump 30, an impeller 32 rotatably driven is provided in a cylindrical housing 31. An edge 32r of an outer peripheral surface of the impeller 32 confronting an inner surface 31a1 of the housing 31 is in a round shape, and thereby pressure variation of a water current passing between the impeller outer peripheral surface and the housing inner surface 31a1 toward the impeller front surface side is eased, generation of cavitation is reduced, and pump efficiency is improved. COPYRIGHT: (C)2005,JPO&NCIPI
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