Quasiturbines: Advantages and Disadvantages

Obviously, the increased power output of the Quasiturbine engine makes it superior to Wankel and piston engines, but it has also solved many of the problems pr­esented by the Wankel. For example, the Wankel engines leads to incomplete combustion of the fuel-air mixture, with the remaining unburned hydrocarbons released into the exhaust. The Quasiturbine engine overcomes this problem with a combustion chamber that is 30 percent less elongated. This means that the fuel-air mixture in the quasiturbine experiences a greater compression and a more complete burn. It also means that, with less fuel going unburned, the Quasiturbine increases fuel efficiency dramatically.

Other significant advantages of the Quasiturbine include:

  • Zero vibration because the engine is perfectly balanced
  • Faster acceleration without a flywheel
  • Higher torque at lower rpm
  • Nearly oil-free operation
  • Less noise
  • Complete flexibility to operate completely submerged or in any orientation, even upside-down
  • Fewer moving parts for less wear and tear
Finally, the Quasiturbine can run on different kinds of fuel, including methanol, gasoline, kerosene, natural gas and diesel. It can even accommodate hydrogen as a fuel source, making it an ideal transitional solution as cars evolve from traditional combustion to alternate fuels.

quasiturbine engine
Photo courtesy Quasiturbine.com

­Considering the modern internal combustion engine was invented by Karl Benz in 1886 and has enjoyed almost 120 years of design refinements, the Quasiturbine engine is still in its infancy. The engine is not used in any real-world applications that would test its suitability as a replacement for the piston engine (or the rotary engine, for that matter). It is still in its prototype phase -- the best look anyone has gotten so far is when it was demonstrated on a go-kart in 2004. The Quasiturbine may not be a competitive engine technology for decades.

In the future, however, you will likely see the Quasiturbine used in more than just your car. Because the central engine area is voluminous and requires no central shaft, it can accommodate generators, propellers and other output devices, making it an ideal engine to power chain saws, powered parachutes, snowmobiles, air compressors, ship propulsion systems and electric power plants.

For more information on the Quasiturbine engine, other engine types and related topics, check out the links on the next page.