Quote:
Originally Posted by mad_sb
I don't think my question was covered in the SC vs SC thread, then again i did not read every page of it.
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The traction drive gearbox is what makes it possible, the rotrex units have a non-newtonian fluid (as far as I know) which allows greater "traction" of the fluid and enhances low RPM/High load operation so the speed of the impeller is quicker than it SHOULD be than if the fluid was not under so much load.
This means instead of a impeller RPM plot that has a constant state of rise, you actually get a speed plot that is a bit "fatter" in the lower speed range and performs better than traditional helical/straight gear direct drive. This is also why the rotrex has oil reservoirs, I believe the nature of the friction drive generates heat.
This is how I understand it, I could be completely wrong... its very interesting operation
