What is an Eaton Roots-Type Supercharger?
The Eaton Roots Supercharger is a positive displacement supercharger. That means it produces a nearly fixed volume of air per revolution at all speeds. Here’s how it works: This is accomplished by using meshing lobes that spin in opposite directions, pumping air between the lobe and the supercharger housing into the engine as they rotate. The close-fitting lobes also form a seal that prevents the compressed air from escaping back into the supercharger inlet. The easiest way to think of it is a large air blower – which is why the term “blower” is used to describe all superchargers. TRD uses an Eaton supercharger that is very efficient and durable. It incorporates a vacuum-operated internal bypass to virtually eliminate drag on the engine (and additional fuel required) by the supercharger when the boost is not needed. TRD adopted the Eaton supercharger because it is very reliable and virtually maintenance free. The Roots supercharger was patented in 1860 by Philander and Francis Roots. T
