Hydraulic multistage turbine of turbodrill

Details Hydraulic multistage turbine of turbodrill Hydraulic multistage turbine of turbodrill

F - Mech Eng,Light,Heat,Weapons

01

D

170/36

F01D 15/00 (2006.01)

Patent

CA 1212335

ABSTRACT OF THE DISCLOSURE A hydraulic multistage turbine each stage of which comprises a stator and a rotor having rings with flow channels and hubs carrying the bladings. There are stages wherein the blades of the bladings are made with an angle of curvature of the camber line greater than an angle formed by the tangent to this line at the exit of the bla- ding and the axis of drilling fluid flow. In a stage whe- rein the ring has such blades it is provided with by-pass channels arranged hydraulically parallel to the flow chann of the ring and communicating the space between this ring and an up stream ring with a space between this ring and a downstream ring for discharging part of the drilling fluid from the flow channel.

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