The engine invented by German engineer Felix Wankel in the mid-1950s is known as the Wankel engine. This unique type of internal combustion engine is also referred to as the rotary engine due to its distinct rotating triangular rotor. It is a significant innovation in the automotive industry, offering various advantages and applications.

The Wankel engine operates on a fundamentally different principle than traditional piston engines. Instead of pistons moving up and down in cylinders, the Wankel engine features a rotor that spins in an epitrochoidal (oval-shaped) chamber. This motion generates three distinct combustion chambers as the rotor rotates, resulting in a continuous power cycle.

One of the key advantages of the Wankel engine is its compact size and lightweight design. The absence of reciprocating parts, such as pistons, connecting rods, and valves, allows for a simplified construction and reduced weight. This lightweight characteristic makes the Wankel engine an ideal choice for various applications, including motorcycles, aircraft, and even certain types of power tools.

In addition to its compactness, the Wankel engine offers a high power-to-weight ratio. The continuous flow of power generated by the rotating rotor enables the engine to produce a substantial amount of power relative to its size. This feature makes it a popular choice for high-performance vehicles, such as sports cars and racing cars, where power and weight are crucial factors.

The Wankel engine also provides smooth operation due to its balanced design. The rotary motion of the rotor results in significantly less vibration compared to piston engines. This smoothness is advantageous for applications where engine vibrations can be detrimental, such as in certain industrial machinery or delicate scientific instruments.

Although the Wankel engine has several advantages, it also has some limitations. Its design can be less fuel-efficient than traditional piston engines, mainly due to higher oil consumption and difficulties in achieving complete combustion. However, ongoing research and development aim to address these challenges and improve the efficiency of Wankel engines.

In conclusion, the Wankel engine, invented by Felix Wankel in the mid-1950s, is a unique type of internal combustion engine. With its compact size, high power-to-weight ratio, smooth operation, and various applications, it has made a significant impact in the automotive and engineering industries.

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