The history of car engines
The internal combustion engine was invented in the 1860s. It has gone through the development stages of gas engine, gasoline engine and diesel engine. In 1860, the Frenchman Lenoir successfully developed the gas engine. The world's first practical internal combustion engine appeared. In 1876, the German Otto (Oto) made the fourth one according to the principle of equal volume four-stroke cycle. Stroke gas engine, in 1883 the German Gotlietb Dainler successfully developed the gasoline engine, in 1893 the German Rudolf Diesel published the T. principle of the compression ignition internal combustion engine, in 1898 Diesel developed the The kerosene-fueled Le-burning internal combustion engine has been born to the present. After more than 100 years of development, there has been significant technological progress in recent years.
Most of the engines used in today's cars are four-stroke gasoline engines, and the gasoline engine in the Daimler era has only a power of 1.4kW/L and a speed of only 800r/min. During the first World War, the compression ratio of the engine was increased to 5. The speed was increased to 2000r/min, and the power was increased by about 10, reaching 15kW/L. The liter power of modern naturally aspirated engines can reach 50~70 kW/L, and the liter power of supercharged engines can reach 65~90 kW/L or more. Compared with the engines of the Daimler era, the liter power has increased by 50%. - 65 times. And the liter power of high supercharged racing engines, some can reach 500 kW/T.
