| 摘要 |
PROBLEM TO BE SOLVED: To provide a water pump extremely hardly causing liquid leakage, while simplifying a circuit constitution of fluid by controlling opening-closing of the fluid by a single body, in a fluid circuit installed with a pump. SOLUTION: This water pump is composed of a pump part A and a valve part B, and a suction port 13 and a delivery port 14 are arranged in a valve housing 12 of the valve part B. An opening-closing valve element 7 is provided in any one of the suction port 13 or the delivery port 14, and a pump housing 11 of the pump part A is directly connected to the valve housing 12. COPYRIGHT: (C)2009,JPO&INPIT
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