发明名称 |
Electric motors for powering downhole tools |
摘要 |
An electric-motor assembly for installation in a borehole to power a downhole tools such as a pump has a first impermeable tube defining an axis and a stator fixed in the tube and having a series of coiled windings and laminations and electrically insulating potting in which the laminations and windings are imbedded. The windings have a connection to an electronically controlled power supply. An annular rotor in the tube radially surrounding the stator includes a permanent magnet coaxial with the windings. The tube seals the stator and rotor from the environment.
|
申请公布号 |
US2008111434(A1) |
申请公布日期 |
2008.05.15 |
申请号 |
US20080008361 |
申请日期 |
2008.01.10 |
申请人 |
HEAD PHILIP |
发明人 |
HEAD PHILIP |
分类号 |
H02K7/00;E21B43/12;F04D13/10;H02K3/50;H02K5/12;H02K5/128;H02K5/132;H02K16/00;H02K47/00 |
主分类号 |
H02K7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|