发明名称 |
Pump for liquids, in particular, a centrifugal pump for electric household appliances |
摘要 |
A pump is disclosed that comprises: (1) a support structure including a body having an annular end in which an opening is defined, and a volute connected to the said end of the body so as to define a pumping chamber therewith; (2) a bladed rotor disposed in the chamber and connected to a shaft which is mounted rotatably in the body and extends through the opening; and (3) a first and a second annular sealing member which are carried by the structure and which encircle the shaft in a leaktight manner. A lubrication chamber containing a lubricating grease is defined between the sealing members and the shaft. A first sealing ring, closer to the rotor, has an inner portion which forms at least one sealing lip which bears on the shaft, and a circular portion disposed outside the lip and having a substantially U-shaped cross-section with its convex side facing the rotor.
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申请公布号 |
US2003012640(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
US20020176105 |
申请日期 |
2002.06.20 |
申请人 |
ROSSO SERGIO;MORRA GIORGIO |
发明人 |
ROSSO SERGIO;MORRA GIORGIO |
分类号 |
F04D29/10;(IPC1-7):F04D29/12;F01D11/00 |
主分类号 |
F04D29/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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