EVEN THERMO-FANS NEED RADIATOR SHUTTERS

The author reviews recent progress in the close temperature control of engines arguing that fans are bigger and noisier than they need to be. The cooling system has to be designed to meet the most demanding conditions which exist for only five per cent of the time. The coolant temperature is not necessarily controlled by a thermostatically controlled fan drive; frequent overcooling by ram-air can occur whether the fan is being driven or not. A low-mass thermostatic power element, called a shutterstat, has been designed to actuate the control valve, preventing cooling air from passing through the radiator with low engine coolant temperatures. A dual control valve serving the radiator shutter and fan drive is described. Results of tests are given to show an increased fuel economy of 4.3 to 8.2 per cent with optimum control of engine temperature (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:
    • Carter, R
  • Publication Date: 1979-5

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 29-30
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00302544
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Feb 11 1980 12:00AM