Although jet engines are rarely used in cars, they are widely used in airplanes, and even some airplane models use small pulse jet engines as their own power devices. So what is the principle of jet engine?
The principle of jet engine is that every force acting on an object is in the opposite direction and the reaction force is equal.
Jet engine is a kind of heat engine or engine. By accelerating the discharge of high-speed fluid to do work, the gas produced during fuel combustion is ejected at high speed to generate power.
Most jet engines are internal combustion engines and work according to Newton's third law. Generalized jet engines include rocket engines and air jet engines.
As early as 19 13, French engineer Rennes Loran obtained the patent of jet engine, but it was a ramjet engine, which could not work at the low speed at that time and lacked the required high-temperature heat-resistant materials.
1930, Frank Whittle obtained his first patent to use gas turbine engine, but it was not until 1 1 year later that his engine made its first flight. This kind of engine in Frank Whittle formed the foundation of modern turbojet engine.