发明名称 |
ANORDNING FOR LAGRING AV EN ROTOR |
摘要 |
A device for preventing back-flow through one of several centrifugal pumps connected in parallel in a common circuit when the impeller of the pump is stationary. The device has a closure member in the form of a cylindrical relatively rotationally displaceable closure element, which in one position permits free passage of the back-flow and in another position closes off the back-flow. The closure element has guide elements which are angularly displaced about the axis of rotation of the pump impeller in one direction by the swirl of the stream of medium being conveyed. |
申请公布号 |
SE400680(B) |
申请公布日期 |
1978.04.03 |
申请号 |
SE19720012964 |
申请日期 |
1972.10.06 |
申请人 |
* MAGNETPUMPEN-ENTWICKLUNGS-GMBH & CO FORSCHUNGS- UND VER;WERTUNGS-KG |
发明人 |
N * LAING |
分类号 |
F04D13/02;F04D3/00;F04D7/08;F04D9/00;F04D13/06;F04D13/14;F04D15/00;F04D29/046;F04D29/14;F04D29/18;F04D29/54;F04D29/58;F16C17/08;H01F30/12;H02J3/38;H02K3/12;H02K3/28;H02K3/38;H02K5/12;H02K5/128;H02K5/132;H02K5/167;H02K7/11;H02K9/19;H02K17/12;H02K17/16 |
主分类号 |
F04D13/02 |
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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