发明名称 |
Impeller pump with reflux passages and apparatus using same |
摘要 |
A pump includes a pump part provided with an impeller having a plurality of blades for sucking and discharging a liquid; a pump case accommodating the pump part; a rotor installed to the impeller to rotate the impeller; a motor part accommodating a stator disposed around an outer periphery of the rotor to drive the rotor and a driving circuit for controlling the stator; a partition member for isolating the motor part from the pump part to protect the motor part therefrom. The pump further includes a reservoir space disposed in the impeller; an extra passage provided between the rotor and the partition member and connected to the reservoir space to introduce the liquid thereto from the blades; and one or more reflux passages, formed at the impeller, for flowing the liquid in the reservoir space back to the blades.
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申请公布号 |
US7891958(B2) |
申请公布日期 |
2011.02.22 |
申请号 |
US20070783771 |
申请日期 |
2007.04.12 |
申请人 |
PANASONIC ELECTRIC WORKS CO., LTD. |
发明人 |
SAKAI TOSHISUKE;UEDA HIDETOSHI |
分类号 |
F04B39/06 |
主分类号 |
F04B39/06 |
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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