ONE OR TWO-STAGE SUPERCHARGING? THE REDUCED VOLUMETRIC RATIO TECHNIQUE

A new type of Diesel Engine with reduced volumetric ratio (R.V.R.) and two-stage supercharging has been developed by the French firm SACM, Mulhouse, and is now coming into service. In Part 1 of this paper, the Author examines the theoretical possibilities of power increase, the relationship between the volumetric ratio and the supercharging ratio, the effect on engine efficiency of two-stage supercharging and the problems of partial load running. Part 2 deals with the installation and arrangement of the engines. Supercharger design studies for improving partial load working are reviewed with special reference to the following problem areas: (1) Reduced torsional moment under weak and partial loading; (2) Preheating of combustion air; Arrangement of the low- and high-pressure stages; Charging air cooling and removal of condensed water.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00248525
• Corporate Authors:

  Franckhlsche Verlagshandlung

  Pfizerstrasse 5, Postfach 640
  7000 Stuttgart 1,   Germany 
• Authors:
  • Delesalle, J
• Publication Date: 1980

Language

• German

Media Info

• Pagination: p. 249
• Serial:
  • Motortechnische Zeitschrift
  • Issue Number: 41
  • Publisher: Franckhlsche Verlagshandlung
  • ISSN: 0024-8525

Subject/Index Terms

• TRT Terms: Diesel engines; Engine efficiency; Installation; Machinery; Performance; Propulsion; Superchargers; Turbochargers
• Old TRIS Terms: Air coolers; Diesel performance; Diesel turbochargers; Propulsive efficiency; Supercharging; Turbocharged diesels
• Subject Areas: Maintenance and Preservation; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00324762
• Record Type: Publication
• Source Agency: British Ship Research Associaiton
• Files: TRIS
• Created Date: Mar 12 1981 12:00AM