WAYS OF REDUCING INJURIOUS MATTER IN THE EXHAUSTS OF DIRECT-INJECTION DIESELS DURING IDLING

MOEGLICHKEITEN ZUR VERRINGERUNG DER SCHADSTOFFKONZENTRATION IN DEN ABGASEN VON DIESELMOTOREN MIT DIREKT-EINSPRITZUNG BEI LEERLAUF

During idling, diesel engines with direct injection have a higher concentration of injurious substances in the exhaust gases than do diesels with precombustion chamber, particularly in respect of hydrocarbons (CH) and to some extent carbon monoxide (CO). By shutting off some of the cylinders and, if necessary, by interposing a throttle in the exhaust line of the shut-off cylinders during idling, the output of the other cylinders can be increased. The combustion conditions in the latter are thus improved considerably. On two engines tested by the DB, such a procedure resulted in a reduction in the CH content to values similar to those for engines with precombustion chamber, while the CO content was less than with the latter engine type. Series switch-off and loading equipment for idling thus makes a useful contribution to reducing air pollution from engines with direct injection.

  • Corporate Authors:

    Hestra Verlag

    Holzhofallee 33, Postfach 4244
    6100 Darmstadt 1,   Germany 
  • Authors:
    • Feulner, A
  • Publication Date: 1978-6

Language

  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00180263
  • Record Type: Publication
  • Source Agency: Eisenbahntechnische Rundschau
  • Files: TRIS
  • Created Date: Sep 27 1978 12:00AM