H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/36, 349/5
H02K 7/18 (2006.01) E21B 4/00 (2006.01) E21B 4/02 (2006.01) E21B 41/00 (2006.01) H02K 5/10 (2006.01) H02K 5/12 (2006.01)
Patent
CA 1177513
ABSTRACT OF THE DISCLOSURE . There is disclosed a generator for production of electrical energy to supply consumers located inside a bore hole, in particular, consumers for detection, transmission and remote control. The generator is located in a flushing space inside of a drill string through which flushing liquid flows, which includes a stator and a rotor having a radial space between the rotor and the stator. The rotor is coupled to a motor which is energized by the flushing liquid. The stator contains a generator armature and the rotor is equipped with permanent magnets. The space between stator and rotor is connected with the flushing space, where a connecting path is directed counter-current to or at an acute angle to the flushing current on the intake side in the region of a branch-off from said flushing space. The rotor is supported by means of unsealed, erosion and abrasion-resistant radial and axial bearings.
382790
Gowling Lafleur Henderson Llp
Norton Christensen Inc.
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