Inlet and outlet ports and sealing means for a fluid driven...

Details Inlet and outlet ports and sealing means for a fluid driven... Inlet and outlet ports and sealing means for a fluid driven...

F - Mech Eng,Light,Heat,Weapons

04

C

103/139, 103/74

F04C 2/00 (2006.01) E21B 4/02 (2006.01) F01C 1/44 (2006.01) F03C 2/30 (2006.01)

Patent

CA 1039110

ABSTRACT An improved positive displacement motor suitable for use in down-hole drilling at the end of a drill string and driven by fluid, e. g., liquid mud, under high pressures. The motor has a novel arrangement of inlet and outlet ports in longitudinally extending circumferentially spaced rows for providing fluid at a substantially uniform pressure along substantially the length of the blades driving the motor so as to equlaize the driving torque along the length of the rotor and avoid pressure differentials tending to twist the blade. A continuous ring isolates the adjacent rows of inlet and outlet ports. This invention relates to improvements in fluid motors of the kind which are particularly, but not exclusively, suitable for use as down-hole motors in deep well drilling.

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