Drainage pump

专利名称：Drainage pump

发明人：Imai, Masayuki,Endo, Takashi,Ninomiya,

Tatsushi

申请号：EP97117317.4申请日：19971007公开号：EP0836010B1公开日：20030709

摘要：The body 200 of the drainage pump has a suction inlet 210 and a dischargingoutlet 220. The rotation vane 300 accommodated in the body 200 includes a small vane350 having four plate-shaped vanes extending to the radial direction and a large vane 320being connected to the small vane 350. The peripheral of the large vane 320 is

surrounded by a ring-shaped circumference wall 325, and the rim portion formed on thelarge vane continuing to the small vane 350 is formed in a tapered state and surroundedby a tapered ring 330. The center portion of the tapered ring 330 has an opening 332providing connection to the small vane 350. The pump body 200 comprises a small vanepump chamber 230 accommodating the small vane 350 and a large vane pump chamber240 surrounding the large vane 320, wherein a slope portion 250 connects the cylindricalsmall vane pump chamber 230 and the large vane pump chamber 240. Further, the outerrim of the rotation vane 300 opposing the slope portion 250 of the body 200 is alsoformed in a slope. The inclination angle of the slope portion 250 of the body 200 and theslope portion 360 of the rotation vane 300 is almost equal. A desirable liquid-vaporboundary surface could be achieved by a drainage pump having the above structure evenwhen the stage of the water or the lift is high.

申请人：FUJIKOKI CORP

地址：JP

国籍：JP

代理机构：Modiano, Guido, Dr.-Ing.

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