CRANKCASE PROTECTION AND OIL MIST PHENOMENA

Over the years the emphasis placed on oil-mist detectors has tended to shift from its original design purpose in providing warning of incipient explosion conditions to one of bearing-overheat protection. The full potential of oil-mist detection is discussed and described. Early detection of an increase in oil-mist density serves two purpose: (1) It eliminates the likelihood of a crankcase explosion where the escape of hot gas and flame could cause serious or even fatal injuries in spite of the pressure rise being controlled. (2) In performing the function in (1) it also provides warning of incipient engine faults. Oil-mist density can be measured by measuring absolute density using clean air as a reference, or by measuring relative density of each sample using the average of the remaining samples as reference. The first method is intended for trunk piston engines and the second for crosshead engines.

  • Availability:
  • Corporate Authors:

    IPC Industrial Press Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Authors:
    • Davies, DHJ
  • Publication Date: 1978-8

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00303901
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Feb 27 1980 12:00AM