Engine
- The engine is the heart of a vehicle, responsible for converting the chemical energy stored in fuel into mechanical energy to power the wheels.
- Common engine types include internal combustion engines (gasoline, diesel) and electric motors.
- Key engine components include the cylinder block, pistons, crankshaft, camshaft, valves, and spark plugs (in gasoline engines).
Fuel System
- The fuel system stores and delivers the appropriate fuel (gasoline, diesel, etc.) to the engine.
- Main components include the fuel tank, fuel pump, fuel lines, and fuel injectors or carburetor.
- The fuel system must provide the right air-fuel mixture for efficient combustion.
Ignition System
1. The ignition system creates and delivers the electrical spark to ignite the air-fuel mixture in each engine cylinder.
2. Components include the battery, ignition coil, spark plugs, and engine control unit (ECU).
Cooling System
1. The cooling system regulates the engine temperature to prevent overheating.
2. Key parts are the water pump, radiator, coolant hoses, and thermostat.
Lubrication System
1. The lubrication system provides oil to reduce friction and wear between moving engine components.
2. Main elements are the oil pump, oil galleries, and oil filter.
Exhaust System
1. The exhaust system routes the combustion byproducts out of the engine and vehicle.
2. Parts include the exhaust manifold, catalytic converter, and muffler.
Engine Control Unit (ECU)
1. The ECU is the "brain" of the engine, monitoring and controlling various systems for optimal performance and efficiency.
2. It processes sensor data and adjusts parameters like fuel injection, ignition timing, and emissions controls.
- Teacher: Admin User