EXPERIMENTAL RESULTS AT SNCF OF A DIESEL ENGINE WITH HIGH SUPERCHARGING (HYPERBAR SYSTEM)

EXPERIMENTATION REALISEE PAR LA SNCF AVEC UN MOTEUR DIESEL A TRES HAUTE SURALIMENTATION (HYPERBAR)

In order to increase train speed without overloading the existing infrastructure, the locomotive fleet requires thermal engines with high specific power for its non-electrified lines. The diesel engine, supercharged with the "Hyperbar" process is liable to meet this need, like the gas turbine, but approximately with the energy output of a diesel motor. As an experimental basis, an SNCF shop installed a 590 kW (800 hp) POYAUD 520-V8 type 8 cylinder engine on an RGP railcar in June 1977. This train set is now on commercial service. Encouraging results obtained foresee a new and favorable era for diesel engine in rail traction both for mean-power railcars and line locomotives.

• Supplemental Notes:
  • CIMAC (Congr International des Machines a Combustion), 13th, Vienna, Austria, May 7-10, 1979, Volume 2.
• Corporate Authors:

  International Council on Combustion Engines

  10 avenue Hoche
  75008 Paris,   France 
• Authors:
  • Duflot, F
• Publication Date: 1979

Language

• French

Media Info

• Features: References;
• Pagination: p. D81.1

Subject/Index Terms

• TRT Terms: Diesel electric locomotives; Diesel engines; Diesel multiple unit cars; Economic efficiency; Fuel conservation; Multiple unit trains; Superchargers; Technology
• Uncontrolled Terms: Efficiency
• Geographic Terms: France
• Old TRIS Terms: Supercharging
• Subject Areas: Economics; Energy; Railroads;

Filing Info

• Accession Number: 00310654
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jun 9 1980 12:00AM