Cummins PT Pump

1.Product Introduction

The Cummins PT (Pressure-Time) pump is a type of fuel injection pump used in Cummins diesel engines. It’s a mechanical fuel injection system that operates based on the principles of pressure and time.

Here’s a basic overview of how it works:

1. Fuel Injection Timing: The PT pump controls the timing of fuel injection into the engine cylinders. This timing is crucial for engine performance, efficiency, and emissions control.
2. Fuel Pressure Regulation: The PT pump maintains the required fuel pressure for injection. It ensures that the fuel is delivered to the injectors at the right pressure for proper atomization and combustion.
3. Mechanical Operation: Unlike electronic fuel injection systems, which rely on electronic control units (ECUs) to regulate fuel delivery, the PT pump is purely mechanical. It uses mechanical components such as cams, plungers, and barrels to control fuel injection.
4. Reliability: One of the advantages of the PT pump is its reliability and durability. Because it’s purely mechanical, it’s less susceptible to electrical failures or malfunctions.
5. Common Rail Injection: While the PT pump was widely used in older Cummins engines, newer engines often use common rail fuel injection systems, which offer more precise control over fuel delivery and better performance.

2.Product Model List