| 摘要 |
An inverted motor with a drilling utensil attached to or integrated as part of an outer motor housing (8)that rotates around a fixed non-rotating shaft or tube (7). The non-rotating shaft or tube is attached to a fixed base (6)and can extend to the end or past the end of the drilling utensil. A rotary motor (60)is positioned between the outer rotating housing and center fixed shaft and imparts force and motion to the housing and drilling utensil (63).A channel (11)traverses through the length of the shaft or tube to allow fluids or wires to fully or partially bypass the motor.
|
