Inventor Demonstrates Infinitely Variable Transmission

ElectricSteve writes with this excerpt from Gizmag: "Ready for a bit of a mental mechanical challenge? Try your hand at understanding how the D-Drive works. Steve Durnin's ingenious new gearbox design is infinitely variable — that is, with your motor running at a constant speed, the D-Drive transmission can smoothly transition from top gear all the way through neutral and into reverse. It doesn't need a clutch, it doesn't use any friction drive components, and the power is always transmitted through strong, reliable gear teeth. In fact, it's a potential revolution in transmission technology."

Comments

Its a con

[Bork]

I noticed the problem with that little "show" - the back side has some things that are being kept hidden. Whats on the back side? Variable speed electric motors that are being used to spin those two shafts.