发明申请
US20130064702A1 Downhole Motors and Pumps with Asymmetric Lobes 有权
井下电机和泵与不对称隆起

Downhole Motors and Pumps with Asymmetric Lobes
摘要:
In an aspect, the disclosure provides an apparatus for use downhole. In one aspect the apparatus includes a rotor with lobes disposed in stator with lobes, wherein at least one of the contours of the rotor lobe and the contour of the stator lobe is asymmetric.
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