Kolbenmotoren, or piston engines, are a type of internal combustion engine that converts fuel into mechanical energy. They operate by igniting a fuel-air mixture within a cylinder, causing a piston to move up and down. This movement turns a crankshaft, which ultimately powers vehicles or machinery. These engines are commonly found in cars, motorcycles, and small aircraft. They can run on various fuels, including gasoline and diesel. Kolbenmotoren are known for their efficiency and reliability, making them a popular choice for many applications in the automotive and industrial sectors.