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