What is the role of the car engine?
The role of the car engine is: the heat of gasoline, diesel fuel through the combustion in the sealed cylinder after the expansion of gas, push the piston to do work, transformed into mechanical energy. The engine is composed of: 1, gas distribution mechanism; 2, crank connecting rod mechanism; 3, ignition system; 4, cooling system; 5, lubrication system; 6, starting system; 7, supply system. The working principle of the engine is: 1, the air and gasoline in a certain ratio into a gas mixture; 2, the suction stroke will be mixed gas into the cylinder, mixed gas by compression and ignition combustion to generate heat; 3, high temperature and high pressure gas on the top of the piston, push the piston to do reciprocating linear motion, through the connecting rod crankshaft flywheel mechanism external output mechanical energy.
