Product Introduction

A Common Rail Injector Test Bench is a high-precision diagnostic tool used to test and evaluate the performance of diesel common rail fuel injectors. It simulates real engine operating conditions and provides detailed measurements of injector performance parameters such as injection volume, return flow, response time, and spray pattern. This equipment is essential for ensuring optimal fuel system operation in modern diesel engines.

Working Principle

The test bench works by supplying pressurized fuel to the injector through a high-pressure common rail system, controlled by an electronic control unit (ECU). Here's how it works in steps:

1. Injector Mounting: The injector is mounted onto the bench with appropriate adapters.

2. Fuel Supply: A high-pressure pump delivers fuel to the common rail, reaching pressures up to 1800–2500 bar, depending on the system.

3. Signal Control: The ECU sends electrical pulses to the injector, simulating different engine conditions (idle, acceleration, load).

4. Measurement: The test bench measures the amount of fuel injected and returned over specific cycles.

5. Result Analysis: Data is displayed on a screen and compared to standard values to determine if the injector is working properly.

Application Scenarios

Common Rail Injector Test Benches are widely used in:

• Automotive Diesel Repair Workshops – For accurate diagnosis and repair of injectors.

• Injector Remanufacturing Plants – To verify and calibrate reconditioned injectors.

• Diesel Engine Manufacturing – For quality control of new injectors.

• Technical Training Centers – As hands-on equipment for teaching diesel fuel system diagnostics.

• R&D Facilities – For performance testing of fuel injection systems under different load and pressure conditions.