The second way to classify diesel injection systems is based on the design of the system itself.

There are several types of diesel injection system designs (of course, there are differences depending on the manufacturer), but they are divided into the following:

First: Diesel injection system with inline pump

Second: Diesel injection system with a rotary pump

Third: Diesel injection system UPS  - Pump unit

Fourth: Diesel injection system (MUI) - Mechanically controlled injection unit

Fifth: Diesel injection system (EUI) - Electrically controlled injection unit

Sixth: Diesel injection system (HEUI) - Hydraulically operated and electrically controlled injection unit

Seventh: Common Rail diesel injection system - High-pressure diesel injection unit with electrical control

Each system is different, and each system is judged and understood by examining the four principles.

Principle 1: What is the part responsible for creating diesel pressure?

Principle 2: What is The part responsible for creating the atomization effect - converting compressed diesel into a spray.

Principle 3: What part is responsible for controlling the amount of fuel injected?

Principle 4: What part is responsible for the injection timing?

When you answer the four principles for each system, the system design will become clearer and we will understand the differences between each system.