1766 British inventor watt (1736- 18 19) improved the steam engine and started the first industrial revolution.

1769, French army engineer Cournot (1725- 1804) made the first car driven by a steam engine. Due to the failure of the steering system during the test run, it crashed into the wall of the San slave arsenal, which was the first motor vehicle accident in the world

177 1 year, Cournot improved steam car, with a speed of 9.5 kilometers per hour, pulling 4-5 tons of goods.

1794, streeter, an Englishman, first put forward the idea of mixing fuel and air to make a mixture for combustion.

introduce

The steam engine is a reciprocating power machine, which converts the energy of steam into mechanical work. The appearance of the steam engine caused the industrial revolution in the18th century. Until the beginning of the 20th century, it was still the most important prime mover in the world, and then it gradually gave way to internal combustion engines and steam turbines.

A steam engine needs a boiler to boil water to produce high-pressure steam. This kind of boiler can use wood, coal, oil or natural gas or even combustible garbage as heat source. The expansion of steam pushes the piston to do work.