What are the components of a car engine

The engine is the power plant of a car, which is composed of 2 major mechanisms and 5 major systems: crank and connecting rod mechanism, valve mechanism, cooling system, fuel supply system, lubrication system, ignition system, and starting system. However, diesel engines have one less ignition system than gasoline engines. .

1. Cooling system: generally consists of water tank, water pump, radiator, fan, thermostat, water temperature meter and water drain switch. The automobile engine adopts two kinds of cooling methods, namely air cooling and water cooling. Generally, car engines are mostly cooled by water.

2. Lubrication system: The engine lubrication system consists of an oil pump, a strainer, an oil filter, an oil passage, a pressure limiting valve, an oil gauge, a pressure sensing plug and an oil dipstick.

3. Fuel supply system:

The fuel system of a gasoline engine includes a gasoline tank, a gasoline gauge, a gasoline pipe, a gasoline filter, a gasoline pump, a carburetor, an air filter, etc.

The diesel fuel system includes main components such as fuel injection pumps, fuel injectors, and governors, as well as auxiliary devices such as diesel tanks, fuel transfer pumps, oil-water separators, diesel filters, fuel injection advancers, and high and low pressure fuel pipes.

4. Starting system: starter, battery, etc.

5. Ignition system: spark plugs, high-voltage wires, high-voltage coils, distributors, ignition switches, etc.

6. Crank connecting rod mechanism: connecting rod, crankshaft, bearing bush, flywheel, piston, piston ring, piston pin, crankshaft oil seal, etc.

7. Air distribution mechanism: cylinder head, valve cover camshaft, valve intake manifold, exhaust manifold, air filter, muffler, three-way catalytic supercharger, etc.