40 thus the notches may be referred to herein as pressure equilibrium promoting features those of skill in the art will appreciate that baffle assembly 40 may be thought of as having a so called venturi effect on the fluid flow through the pipe and thus on the rotation of turbine assembly 16 by reducing the cross section of the pipe the baffles effectively direct the fluid and increase its flow rate through the cylindrical turbine it has been determined that flow rate increases significantly and power thus even more significantly through baffle assembly 40 over those typical fluid flow rates e g approximately 15 fps through configurations having no baffle assembly fig4 is a front elevation of assembled system 10 u2032 fig4 is thought to be mostly self explanatory based upon the description above regarding fig3 to which it corresponds the angle u03b8 of incline of the baffles can be more clearly seen as can two of the four notches such as notch 60 which for the sake of clarity is designated only once although it will be understood that there are eight such notches in accordance with one embodiment of the invention in accordance with this cylindrical turbine embodiment of the invention sufficient clearance around the rotating cylindrical turbine assembly and within the pipe is provided to avoid undue compression of fluid at the turbine sweep boundaries as shown fig5 is an isometric exploded assembly drawing of cylindrical turbine assembly 16 cylindrical turbine assembly 16 includes an axially linearly toothed collar 62 having an inner diameter id slightly greater than an outer diameter od of a shaft 64 around which it extends and to which it is fixedly mounted via upper.