DIT31 4.0 Digital Quality Architecture for Diesel Injectors

Digital Quality Control Platform

The DIT31 4.0 is an integrated digital platform for injector testing and quality control.

Dual Operating Modes:

• Users can select between Expert Mode, with full parameter access and manual control, and Guided Mode, which runs automated test sequences with predefined validation criteria to reduce operator influence.

Cloud-Based Test Protocol Management:

• Injector-specific test protocols are accessible via cloud connection, ensuring correct injector identification and structured data acquisition.

Electrical Pre-Testing:

• An automated electrical verification for common rail injectors (electromagnetic and piezo) is performed before hydraulic testing.
• This procedure ensures electrical integrity and protects the accuracy and repeatability of flow measurements.

Main Features 

Advanced Pressure Generation and Stability

• The DIT31 4.0 integrates a custom-designed pressure generation system instead of standard common rail pumps.
• This design minimizes pressure fluctuations and provides stable and precise pressure control over a wide operating range.
• The system architecture is scalable in size and capacity, enabling configuration for different application requirements, including automotive, marine, heavy-duty, and naval environments.

Proprietary Injection-by-Injection Technology

• The DIT31 4.0 analyzes every single injection event individually.
• Test parameters are determined at each injection with high precision and resolution.
• This approach differs significantly from conventional testing equipment, which operates injectors in long cycles and measures only total fuel quantities.
• By evaluating each spray event separately, the DIT31 4.0 provides reliable and repeatable results, independent of the operator.

Specialized Testing Programs

Conventional Injectors:

• Nozzle opening pressure (NOP) and leakage time measurement.

Double-Spring Injectors:

• NOP1, NOP2, leakage time, and K factor measurement.

Common Rail Injectors:

• 6-point performance mapping, including return flow, idle opening pressure, opening delay, injection time, and injected fuel quantity (dp).

Stepped Injectors:

• Specific test procedure for stepped injector configurations.

Technical Specifications

User Interface and Connectivity:

Color touch screen with virtual controls, Ethernet connection for data exchange, and optional digital service modules.

Injector Clamping System:

Pneumatic vice for automatic clamping of injectors from 10 to 32 mm.

Spray Visualization Chamber:

Large nebulization chamber with integrated halogen lighting and fume extraction system for clear spray pattern observation.

Fluid Management System:

Dual-tank configuration with a 3-liter main tank equipped with a 15-micron filter and a separate recovery tank for contaminated fluid.

Reporting and Data Output:

Integrated printer for immediate test reports.

Optional subscription-based applications enable data access and report printing via standard office network printers.

Injector Clinic Concept

The DIT31 4.0 completes a full injector test cycle in less than 3 minutes.

This performance enables diesel service centers to operate as specialized diagnostic hubs, providing objective and high-precision injector evaluation for automotive, marine, railway, and industrial applications.