r 



MUD IN 



THRUST 

 BEARING 



ROTATING DISKS 

 ! FIXED DISKS 



TURBINE 





STATORS 

 ROTORS 



LOWER 

 BEARING 



'■#.- BIT 



MUD OUT 



Figure 31-2. Complete turbodrill (left) and cutaway view (right) showing major components. 



669 



