TACOM/CUMMINS ADIABATIC ENGINE PROGRAM

This paper discusses the goals, progress, and future plans of the TACOM/Cummins Adiabatic Engine Program. The Adiabatic Engine concept insulates the diesel combustion chamber with high temperature materials to allow hot operation near an adiabatic operation condition. Additional power and improved efficiency derived from this concept occur because thermal energy, normally lost to the cooling and exhaust systems, is converted to useful power through the use of turbomachinery and high-temperature materials. Engine testing has repeatedly demonstrated the Adiabatic Engine to be the most fuel efficient engine in the world with multi-cylinder engine performance levels of 0.285 LB/BHP-HR (48% thermal efficiency) at 450 HP representative. Installation of an early version of the Adiabatic Engine within a military 5 ton truck has been completed, with initial vehicle evaluation successfully accomplished. Design and procurement of long lead time items for the next generation of Adiabatic Engine in the 600-750 HP power range is continuing. Work on the minimum-friction Adiabatic Engine version continues.

  • Supplemental Notes:
    • The Adiabatic Diesel Engine SP-543. International Congress and Exposition, Detroit, Michigan, February 28-March 4, 1983.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Bryzik, W
    • Kamo, R
  • Publication Date: 1983-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00372818
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 830314, HS-034 415
  • Files: HSL, USDOT
  • Created Date: May 31 1983 12:00AM