SOUTHWEST RESEARCH INSTITUTE

Diesel Engine Combustion Research

Diagnostic Evaluation

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Diagnostic Evaluation

Diesel Engine Combustion Research Brochures


	Vehicle in preparation for diagnostic evaluation

Combustion and fuel-injection processes are refined by analyzing the measured crank angle resolved cylinder pressure and fuel injection signals. Using the resulting data, the Diesel Engine Combustion Research Section at Southwest Research Institute (SwRI) determines combustion-related parameters, including:

Maximum cylinder pressure and pressure rise rate
Combustion duration
Fuel injection timing, duration, and rate
Injection centroid
Fuel injection stability
Cycle work
Heat release rate
Cumulative heat release

Measurement of Diesel Engine Parameters

SwRI engineers monitor combustion and fuel injection processes on production and prototype engines. Using SwRI-developed or commercially available data acquisition systems, we measure a wide range of diesel engine parameters, such as:

Cylinder pressure
Needle lift
Fuel line pressure at pump and nozzle
Rocker arm and push rod loads
Solenoid current
Intake and exhaust manifold pressures
Valve motion

Analytical Techniques

Prototype and existing engine designs are assessed using advanced analytical techniques such as:

Computational fluid dynamics code
Cycle simulation codes, including VIPRE™ and ALAMO_ENGINE
Fuel jet performance, including JETMIX

For more information about our diagnostic evaluation capabilities, or how you can contract with SwRI, please contact Darius Mehta at dmehta@swri.org or (210) 522-2617.

Contact Information

Darius Mehta

Diesel Engine Combustion Research

(210) 522-2617

dmehta@swri.org

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