发明名称 |
CENTRIFUGAL PUMP HAVING AN AXIAL THRUST BALANCING DEVICE |
摘要 |
The invention relates to a single-stage centrifugal pump having an axial thrust balancing device, wherein a rotor which is connected to a shaft is arranged rotatably in the housing of the centrifugal pump. At least one split-ring seal which is arranged between the rotor and the housing forms a relief space, wherein the relief space is connected to the pressure region of the centrifugal pump by way of a pressure-transmitting connection. In addition, a shaft seal is arranged between the shaft and the housing. In a manner which is known per se, the shaft is provided with at least one roller bearing which absorbs axial forces. A pressure difference between a pressure in the relief space and a location at another pressure in the centrifugal pump housing acts via the connection as a permissible axial force in a constant direction on the rotating pump parts. This axial force acts on the roller bearing as a force in a constant direction which lies below a permissible bearing loading. |
申请公布号 |
WO2007104526(A1) |
申请公布日期 |
2007.09.20 |
申请号 |
WO2007EP02178 |
申请日期 |
2007.03.13 |
申请人 |
KSB AKTIENGESELLSCHAFT;DWARS, ANJA;KASTRUP, NORBERT |
发明人 |
DWARS, ANJA;KASTRUP, NORBERT |
分类号 |
F04D29/04;F04D29/16 |
主分类号 |
F04D29/04 |
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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