¿Cómo funciona un motor diesel? (Animación)

Introduction to Diesel Engines

This section provides an introduction to the basic principles of diesel engines and their operation.

How Diesel Engines Work

• Diesel engines were invented by Rudolf Diesel in 1893.

• A four-cylinder inline engine is used as an example to explain the basic principle.

• The engine has four cylinders mounted in a straight line.

• Camshafts operate the valves, with each cylinder having two intake valves and two exhaust valves.

• Fuel injection system supplies fuel to the cylinders.

• Pistons are forced down during combustion, transmitting force through connecting rods to the gearbox.

Valve Operation and Fuel Injection

This section explains the operation of valves and fuel injection in a diesel engine.

Valve Operation

• Each cylinder has four valves - two intake valves and two exhaust valves.

• During the first time (intake stroke), air is drawn into the cylinder through the intake valves.

• During the second time (compression stroke), intake valves are closed, and air is compressed at high temperature.

• Temperature can reach nearly 1300 degrees Fahrenheit due to compression.

Fuel Injection

• During the third time (combustion stroke), diesel fuel is injected into the cylinder.

• The high temperature of compressed air ignites the fuel, pushing down on the piston.

• Energy from combustion is transferred to the crankshaft.

• During the fourth time (exhaust stroke), burned fuel exits through exhaust valves.

Four Stroke Cycle

This section describes how a four-stroke diesel engine follows a specific cycle similar to Otto cycle engines.

Four Stroke Cycle

• A four-stroke diesel engine follows these stages: intake, compression, combustion, and exhaust.