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:
  • Corporate Authors:

    Franckhlsche Verlagshandlung

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

Language

  • German

Media Info

Subject/Index Terms

Filing Info

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