(1) 1867, German engineer Otto introduced the world's first reciprocating piston four-stroke engine.
(2) 1885, karl benz, a German, bought Otto's patent, installed an internal combustion engine and an accelerator on a three-wheeled carriage, and applied for the patent of the first three-cylinder car with the patent certificate number of 37435 on 1886129, and obtained the invention right of the first car in the world. This day is considered as the birth day of modern cars. Note: Mercedes-Benz No.1 car.
(3) 1886, Gottliep Daimler of Germany made the world's first four-wheeled vehicle, which should be the originator of four-wheeled vehicles, equipped with a gasoline engine of 1. 1 horsepower.
(4) In1887, Mercedes-Benz Automobile Company, the originator of automobiles, was established, and in 1890, Daimler Company was established. Until 1926, Mercedes-Benz Daimler merged into Daimler-Benz and began to produce Mercedes-Benz cars.
Basic structure:
1, cooling system: generally composed of water tank, water pump, radiator, fan, thermostat, water thermometer and drain switch. There are two cooling methods for automobile engines, namely air cooling and water cooling. Generally, automobile engines are mostly water-cooled.
2. Lubrication system: The engine lubrication system consists of oil pump, filter screen, oil filter, oil circuit, pressure limiting valve, oil gauge, pressure sensitive plug and dipstick.
3. Fuel supply system: The fuel system of a gasoline engine includes a gasoline tank, a gasoline meter, a gasoline pipe, a gasoline filter, a gasoline pump, a carburetor and an air filter.