Rotary kinetic fluid motors or pumps – Motor runner motivated by reaction type jet discharge nozzle...
Patent
1994-12-15
1996-02-27
Look, Edward K.
Rotary kinetic fluid motors or pumps
Motor runner motivated by reaction type jet discharge nozzle...
415229, 415230, 415903, F01D 118
Patent
active
054944015
ABSTRACT:
An orifice motor which includes a plurality of spaced-apart rotors positioned along a shaft and enclosed within a casing or housing. Each rotor includes at least one jet orifice thorugh which fluid passes and is ejected tangentially to the peripheral surface of the rotor. The apparatus also includes a high pressure fluid inlet at a first end of the shaft, and a plurality of exit ports together with an exit chamber at a second end of the shaft. Bearings and seals are employed to protect frictionally related surfaces. Fluid is injected into one end of the apparatus and travels axially through the apparatus, passing through each of the rotors by way of the orifices. As the fluid exits the orifices, a pinwheel effect is created which causes the rotors to spin, thus causing the attached shaft to spin. As fluid exits each rotor, it is introduced to the next rotor downstream, where it exits in the same way. The fluid pressure drops as it passes each successive rotor due to momentum imparted to the rotors by the fluid. The apparatus may include a bearing assembly which acts to transfer the weight of a drill string to the shaft of the motor, thereby reducing the load upon and increasing the life of the bearings.
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Tiraspolsky, W., Hydraulic Downhole Drilling Motors, Gulf Publishing Company, 1985, pp. 27-32.
Larson James A.
Look Edward K.
O'Banion John P.
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