Heavy- and Medium-Duty Engine Testing 

Heavy-Duty (up to 1,000 hp)

  • Certification and verification testing up to 1,000 hp in multiple engine dynamometer test cells

  • AC transient 1,000 hp and 500 hp engine dynamometers with motoring capabilities

  • Standard or custom test cycles available

  • Fully integrated computer interface for ease of switching/selecting of test cycles

  • Diesel, gasoline, CNG, and dual fuel capabilities

Medium-Duty (up to 300 hp)

  • Development and durability testing up to 300 hp

  • Full eddy current 300 hp and 200 hp steady state dynamometers

  • Standard or custom test cycles available

  • Fully integrated computer interface for ease of switching/selecting of test cycles

  • Diesel, gasoline, CNG and dual fuel capabilities

Emission Capabilities

  • Full flow CVS & partial flow system

  • Gaseous emissions (Horiba MEXA 7200): NOx, NO2, NO, THC, CH4, CO, CO2

  • NH3 measurement using MKS FTIR

  • Celeco smoke meter

  • Double dilution gravimetric PM, Horiba MDLT partial flow PM

  • PM elemental and organic carbon (EC:OC) speciation

  • Wet/dry chemical lab capabilities

  • Other capabilities upon request: raw emissions measurement, urea storage and distribution, PM sulfate and nitrate analysis

ESW America   200 Progress Drive    Montgomeryville, PA 18936

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