Dutchmen Invent Gearbox Without Gears
Four Dutchmen invented, developed and patented a gearbox without any gear wheels. Compared to traditional transmissions, their revolutionary Controlled Rotation System (CRS) has a simple design. It is maintenance-free, doesn’t require lubricants and saves fuel because it lacks friction between the gears.
The inventors expect the new transmission to change the automotive industry on a worldwide scale. The system has no gear wheels, but uses two discs, which are powered by a strong belt. With the help of a digital-operated hydraulic oil pump and slide units, the diameter of the discs is increased and decreased, causing acceleration and deceleration, thus providing a different gear.
The new transmission can potentially be used not only in cars, but also in windmills, ships, motorbikes or any other kind of machine.
“This innovation fits perfectly in a green economy,” the designers said. “It’s easier, more compact and cheaper to assemble than traditional transmissions. It saves energy, offers more gear possibilities and can be used in all kinds of applications. The technique is completely different compared to the traditional gearbox, which dates from the 19th century.”
Originally, the system was developed for bicycles. The designers got the idea when they saw cyclist Andy Schleck lose his bicycle chain during the crucial moment of the Tour de France, while he was shifting gears. For bicycles, the system is called Dual Slide Gear. The two discs replace all the gear wheels normally used for the gears.
After developing a prototype for bikes, they modified the system for cars. The first prototype for the automotive industry measures 30 by 22 by 18 centimeters. It’s most effective when used in electric cars because the electric engine can run at a constant rpm. By linking each wheel to a separate transmission, energy can be saved.