公开(公告)号：EP1024297B1

公开(公告)日：2002-03-06

申请号：EP99118429.2

申请日：1999-09-17

申请人： Fujikoki Corporation

发明人： Ninomiya, Tatushi, c/o Fujikoki COrporation ,  Imai, Masayuki, c/o Fujikoki COrporation

IPC分类号： F04D29/66 ,  F04D29/22 ,  F04D29/24

CPC分类号： F04D29/669 ,  F04D29/2216 ,  F04D29/242 ,  F05B2260/96

公开(公告)号：EP1024297A2

公开(公告)日：2000-08-02

申请号：EP99118429.2

申请日：1999-09-17

申请人： Fujikoki Corporation

发明人： Ninomiya, Tatushi, c/o Fujikoki COrporation ,  Imai, Masayuki, c/o Fujikoki COrporation

IPC分类号： F04D29/66 ,  F04D29/22

CPC分类号： F04D29/669 ,  F04D29/2216 ,  F04D29/242 ,  F05B2260/96

摘要： A pump body 30 of a drain pump comprises an intake opening 42 protruded downward and a discharge opening 46 extending to the side. A vane 50 inside the pump body 30 is rotated by a motor. The vane 50 is formed so that the outer peripheral portion of large radius vanes 450 is surrounded by a cylindrical wall member 470. The height of the cylindrical wall member 470 against the height of the large radius vanes 450 to the upper rim portion 453 is set to be in a predetermined range, which effectively reduces the noise being generated.

摘要翻译： 排水泵的泵体30包括向下突出的进气开口42和向侧面延伸的排出口46。 泵体30内的叶片50由马达旋转。 叶片50形成为使大直径叶片450的外周部分被圆筒壁构件470包围。圆筒壁构件470相对于大半径叶片450到上缘部453的高度的高度被设定 处于预定范围内，这有效地减少了正在产生的噪声。