through the conduits 12 and up the outer sleeve shroud volume this can be accomplished by providing a total conduit 12 cross sectional flow area about equal to the cross sectional flow area of the volume between the inner sleeve and the motor and a cross sectioned flow area between the outer sleeve and the shroud which is considerably larger than the cross sectional flow area between the inner sleeve and the motor alternatively and preferably the cross sectional flow areas between the inner sleeve and the motor is about equal to the cross sectional flow area between the outer sleeve and the motor and less than the total cross sectional flow areas of the conduits 12 the total flow cross sectional area between outer sleeve and the shroud plus the cross sectional flow area between the inner sleeve and the motor water flow area are most preferably about proportional to the cross sectional flow area between the sleeve oil flow area to roughly equalize the velocities of the water and oil flowing through each volume with about 20 percent targeted water in the total flow the total water flow area should be about one fourth of the oil flow area equalizing these flow areas equalizes the velocities exiting the sleeves and minimizes the turbulence created at the outlet of the sleeves it should be noted that the oil and water flow areas are generally exaggerated in fig1 through 3 in order to better show the details of the apparatus the total average distance between the shroud and the motor.