公开(公告)号：US12051953B2

公开(公告)日：2024-07-30

申请号：US17695148

申请日：2022-03-15

申请人： CORETEQ SYSTEMS LTD

发明人： Hassan Mansir ,  Andras Bencze

IPC分类号： H02K3/487 ,  H02K1/16 ,  H02K3/12 ,  H02K3/28 ,  E21B43/12

CPC分类号： H02K3/487 ,  H02K1/16 ,  H02K3/12 ,  H02K3/28 ,  E21B43/128

摘要： Disclosed is an apparatus According to the present invention, a new winding arrangement was developed to enhance the manufacturability of stators with large length to diameter ratio and small aperture diameters such as the ones designed and manufactured for downhole pumping applications. The rectangular conductors are pre-formed to a specific shape, nested together, and inserted into the stator slots. Once the conductors are inserted, additional bending and joining operations are required to complete the coils and phases. These operations can be either fully automatic or semi-automatic. The structure of the winding allows insertion of phase and phase to phase insulation after the joining operation is completed thus reducing the risk of damage to the insulation system during the joining process. The pre-formed winding due to its ability to nest by design results is very short end-turns compared to conventional winding.

公开(公告)号：US11459869B2

公开(公告)日：2022-10-04

申请号：US16754043

申请日：2018-10-04

申请人： CORETEQ SYSTEMS LTD

发明人： Hassan Mansir ,  Andras Bencze

IPC分类号： E21B43/38 ,  E21B43/12 ,  F04D13/10 ,  F04B47/06 ,  F04D13/08

摘要： Disclosed is an apparatus when installed with an Electrical Submersible Pump for fluid production protects the motor from the effect of solids on the shaft seal. The invention provides an apparatus that dynamically filters the solids and prevents them from contacting or accumulating at the vicinity of the shaft seal. The apparatus extends the run life of the ESP and prevents the motor dielectric fluid from being contaminated.