1. Internal Combustion Engine: In 1885, Benz patented a gasoline-powered internal combustion engine, which became the foundation for powering automobiles. This engine provided a more efficient and lighter alternative to steam-powered engines used at the time.
2. Three-Wheeled Motorcar: In 1886, Benz unveiled the Benz Patent-Motorwagen, considered to be the world's first practical automobile. It was a three-wheeled vehicle powered by his internal combustion engine and reached a speed of approximately 10 mph (16 km/h).
3. Four-Wheeled Motorcar: In 1891, Benz introduced the first four-wheeled automobile. It offered greater stability and improved handling compared to the earlier three-wheeled design.
4. Suspension System: Benz developed a primitive form of suspension using elliptical springs, providing a smoother ride for passengers.
5. Two-Stroke Engine: Benz experimented with various engine designs and developed the two-stroke engine in 1896, known for its lightweight and compact design.
6. Carburetor: Benz patented a carburetor in 1888, which was a device that mixes fuel and air to achieve optimal combustion in an engine.
7. Spark Plug: In 1889, he developed an early version of the spark plug, which is crucial for igniting the fuel-air mixture in the internal combustion engine.
8. Transmission System: Benz introduced a rudimentary version of a transmission system, allowing the vehicle to shift between forward and reverse gears.
9. Braking System: He also created a rudimentary braking system using wooden blocks that pressed against metal wheels to slow down the vehicle.
Benz's contributions, combined with the work of other inventors, engineers, and researchers, propelled the development of the automobile and paved the way for its widespread adoption and eventual transformation into the modern vehicles we use today.