LUCAS LOOKS FORWARD

The use of fuel injection into diesel engines using high speed, short-stroke solenoids called helenoids is discussed. Helenoids, in which the speed of operation is independent of the force required, have been used to operate the valve gear of a 2-litre four cylinder petrol engine thus eliminating camshaft and tappets. Their most important application, however, could be to operate fuel-injectors and automatically adjust fuel injection characteristics. Fuel injection timing could be critical in the development of more efficient and quieter engines. It has been found that there is a link between combustion noise and the rate at which fuel is burned. The author discusses the effect of swirls in diesel engines and suggests that high swirl is successful if used with a fuel system where the fuel spray wets the chamber wall. Vigorous pre-swirl is regarded as a possible compromise between noise and efficiency. The merits of dual-injection pressures are examined. Methods of solving the problems associated with cold-starting of indirect injection are discussed, including a thermostart induction maniforld flame-heater. /TRRL/

  • Availability:
  • Corporate Authors:

    Embankment Press Limited

    Building 59, GEC Estate, East Lane
    Wembley, Middlesex HA9 7TQ,   England 

    Embankment Press Limited

    Building 59, GEC Estate, East Lane
    Wembley, Middlesex HA9 7TQ,   England 
  • Authors:
    • Dickson-Simpson, J M
  • Publication Date: 1979-5

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 33-36
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00302554
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jan 30 1980 12:00AM