Clean High-Efficiency
Diesel Engine VII

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Several fully equipped engine development test cells are dedicated for CHEDE-VII use.

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Members of the consortium are able to interact with other OEMs and component suppliers.

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Logos of CHEDE-VII Consortium Members

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Video about the Clean High-Efficiency Diesel Engine VI Consortium

Building on the more than 24 years of the industry's longest running diesel research consortium, the Clean High-Efficiency Diesel Engine VII (CHEDE-VII) Consortium began in November 2015.

This program is pursuing the world's most efficient engines to meet the needs of industry 5 to 10 years into the future. The four-year multi-client consortium includes consideration of worldwide markets and technology impacts on each. Goals include research and demonstration of technologies to achieve 55% engine-system efficiency

  • HD diesel engine system goal of approximately 55% BTE at future low NOx standard
  • LD diesel engine goal of providing a low cost effective, clean LD Diesel at 2025 GHG

CHEDE-VII Three Main Areas of Concentration

  1. Low NOx + Low CO2 Heavy Duty Diesel Engine
    Goals:  Research and demonstration of technologies to achieve 55% engine-system efficiency that meets future low NOX emissions standards (engine goal ~50% BTE, plus waste energy recover =55% BTE total)
  2. Alternative Combustion Technology
    Goals:  Evaluation and demonstration of new and alternative combustion systems. Topics include advanced dual-fuel engine technologies, smokeless diesel combustion, and gasoline compression ignition. Project goals to demonstrate potential engine efficiency and emissions improvements from alternative combustion technology.
  3. Cost Effective, Light Duty Diesel
    Goals:  Multiple paths that include cost effective LD diesel system, opening new potential for diesels in LD gasoline markets (drive-cycle efficiencies 10% better than premium gasoline), emission solution to meet U.S. SULEV, and CO2-minimized diesel for Euro-VI and beyond.

Specific Clean High-Efficiency Diesel Engine Research Areas

  • Combustion systems
  • Advanced air and EGR systems
  • Waste heat recovery
  • Advanced friction reduction
  • Systems approach to aftertreatment solutions
  • 15.0L High Efficiency Diesel test bed
  • 13.0L Dual Fuel test bed
  • 6.8L test bed
  • Optical combustion bomb
  • High-pressure spray laboratory

On-Site Clean High-Efficiency Diesel Engine Facilities

  • 15.0L test bed
  • 6.8L test bed
  • 1.6L test bed with HIL hybrid
  • 0.4L single-cylinder VCR test bed
  • Optical combustion bomb
  • High-pressure spray laboratory

Past technologies have included advanced boost systems, dual-fuel diesel engine, RCCI, cooled EGR, fuel effects, VVA, full-range HCCI, Stoich-diesel, LD cold-start, and SCR integration. The consortia celebrate 17 awarded patents and an additional ten patents in progress. Participants in the diesel consortium receive royalty-free license to use all patents resulting from the program.

CHEDE-VII Consortium Membership and Benefits

  • Interested companies may join the CHEDE-VII Consortium at any time during the four-year program
  • Annual membership costs
    • $120,000 USD for OEMs
    • $70,000 USD for Suppliers
    • $50,000 USD for limited members (No IP or voting rights)
  • A yearly renewable contract is offered to members
  • The impact of the yearly contribution is multiplied by the number of participants
  • SwRI's internal research program involving control algorithms and modified combustion concepts will be shared with Consortium members
  • SwRI will aggressively pursue patent applications for technology developed during the CHEDE-VII program
  • Consortium participants will receive a royalty-free license to use the technology

Related Terminology

clean diesel engine technology  •  NOx reduction  •  particulate reduction  •  exhaust gas recirculation  •  EGR  •  heavy-duty diesel engine  •  diesel engine emissions

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.