[olddog]

I'm not trying to argue, or for that matter even claim to be an expert. I have 33 years practical experience in industry. We use roots blowers to push (and in some cases pull) plastic pellets from Silos several hundred yards into the factory. We also operate twin screw air compressors. We even have multi-stage turbines. I have combined that knowledge with my favorite hobby engines. My intention is to share my understanding, and I try to not lead people astray. I can be quite anal at times. We agree more than we disagree.

Is the technology on the Toyota truck a root blower with twisted rotors or is it a true twin screw compressor (the area of the screws actually reduces and compresses the air)?