The product is a technology which combines hydropump, hydromotor, gear, hydro- and mechanical break in one unit - 4 quadrants. This unit is much smaller, lighter, lower than a state-of-the-art pure pump or pure motor in the same performance class. It's based on a modular design - scalable from micro (medical tech) to heavy duty industry. The technology is material independent - 100% plastic version possible, cold start capability to -40°C, no stick-slip effect - start torque >85%, significant increased activation- and live time under full load, nearly maintenance free. More than 100 different ratios could be realised by internal changing of just a few parts.