FULL-METAL ANTI-HIGH TEMPERATURE CYCLOID DOWNHOLE MOTOR
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United States of America Patent
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Issued Date -
Dec 8, 2022
app pub date -
Jul 1, 2021
filing date -
Jul 1, 2021
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Abstract
A full-metal anti-high temperature cycloid downhole motor comprises an outer tube, a stator, a rotor, a partition plate, a flow distribution disc, and a flow guide mechanism. The inside of the stator is provided with N grooves , the inner side walls of the N grooves form an annular inner contour surface; the rotor is formed with N−1 rotating heads provided along the axial direction of the outer tube, and each rotating head is provided with an embedding slot, one side of the embedding slot is provided with a notch, a rotor copper rod that can be in rolling engagement with the inner contour surface through the notch is provided in the embedding slot, and there is a changing gap between the outer wall of the rotor copper rod and the inner wall of the embedding slot.
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