In constructing the turbo generator test rig, the turbine and bearing housing were taken from a small
commercial turbocharger. The alternator’s rotor was then connected to the shaft of the turbocharger via a
stainless steel mating piece in place of the compressor. Extra high speed ball bearings were added at the
opposite end of the rotor for extra support. The turbocharger was suspended above the base plate to allow
adequate space for the oil outlet piping. The oil inlet pipe contained a small filter to prevent any grit
entering the turbocharger bearings