公开(公告)号：US4434448A

公开(公告)日：1984-02-28

申请号：US399507

申请日：1982-07-19

申请人： Clifford J. Bell ,  Ramsis S. Girgis

发明人： Clifford J. Bell ,  Ramsis S. Girgis

IPC分类号： F16C17/24 ,  H02K5/167 ,  H02K11/00 ,  H05F3/00 ,  H02H7/08

CPC分类号： H05F3/00 ,  F16C17/24 ,  H02K11/20 ,  H02K5/1672

摘要： A transformer motor pump unit for circulating a fluid in a transformer characterized by a rotating pump shaft mounted in non-electrically conductive bearings, means for detecting shaft displacement due to bearing wear, and a static arrester grounding the pump shaft and all rotating parts for preventing static electricity buildup on the shaft and subsequent discharge from the shaft to the bearing area. Power circuit means for operating the pump includes the static arrester as a control circuit for tripping the pump out of operation should mechanical failure occur.

摘要翻译： 一种用于使变压器中的流体循环的变压器，其特征在于安装在非导电轴承中的旋转泵轴，用于检测由于轴承磨损引起的轴位移的装置，以及用于防止泵轴和所有旋转部件的静电避雷器的接地 静电积聚在轴上，随后从轴排放到轴承区域。 用于操作泵的动力电路装置包括作为控制回路的静电避雷器，用于在发生机械故障时使泵跳闸。

公开(公告)号：US4699573A

公开(公告)日：1987-10-13

申请号：US310569

申请日：1981-10-13

申请人： Edward M. Petrie ,  Clifford J. Bell

发明人： Edward M. Petrie ,  Clifford J. Bell

IPC分类号： F04D29/02 ,  F04D29/04 ,  F04D29/041 ,  F04D29/047 ,  F04B39/06 ,  F16C33/20

CPC分类号： F04D29/047 ,  F04D29/026 ,  F04D29/0413 ,  F05D2300/133 ,  F05D2300/21 ,  F05D2300/433 ,  F05D2300/615 ,  Y10S384/905 ,  Y10S384/907

摘要： Fluid-cooled electrical apparatus characterized by a new and improved pump for circulating the fluid within the apparatus. The pump has a motor portion in fluid communication with a pump portion, non-electrically conductive bearings supporting a common shaft between the two portions. The bearings being comprised of a polyamideimide thermoplastic resin.

摘要翻译： 流体冷却的电气设备，其特征在于用于使设备内的流体循环的新的和改进的泵。 泵具有与泵部分流体连通的马达部分，在两个部分之间支撑公共轴的非导电轴承。 轴承由聚酰胺酰亚胺热塑性树脂组成。

公开(公告)号：US4320431A

公开(公告)日：1982-03-16

申请号：US124687

申请日：1980-02-26

申请人： Clifford J. Bell

发明人： Clifford J. Bell

IPC分类号： F04D13/06 ,  F01C21/02 ,  F04D15/02 ,  F04D29/04 ,  F04D29/046 ,  F16C17/24 ,  G01B7/14 ,  H02K5/167 ,  H02K9/19 ,  H02H7/08

CPC分类号： H02K9/19 ,  F01C21/02 ,  F16C17/24 ,  F16C17/246 ,  G01B7/144 ,  H02K5/1672

摘要： Fluid-cooled electrical apparatus having a new and improved pump for circulating the fluid within the apparatus. The pump has a motor portion in fluid communication with a pump portion, non-electrically conductive bearings supporting a common shaft between the two portions, and means for detecting shaft displacement due to bearing wear. Electrically conductive contact rings disposed within recesses in the bearings' sleeve and thrust surfaces complete an electric connection with the shaft in the event of bearing wear. Circuit means connected to the electrically conductive contact rings deenergizes the motor when the contact rings detect predetermined bearing wear.

摘要翻译： 具有用于在设备内循环流体的新的和改进的泵的流体冷却的电气设备。 泵具有与泵部分流体连通的马达部分，在两部分之间支撑公共轴的非导电轴承，以及用于检测由于轴承磨损引起的轴位移的装置。 设置在轴承套筒和推力表面的凹槽内的导电接触环在轴承磨损的情况下完成与轴的电连接。 当接触环检测到预定的轴承磨损时，连接到导电接触环的电路装置使电机通电。