THERMALLY - CONTROLLED FANS FOR COMMERCIAL VEHICLES

The article describes two different types of thermally-controlled fans for commercial vehicles. They are called the positive clutch and viscous types, and the relative merits of each type of fan are explained together with the different operating characteristics. The positive clutch fan saves about ten to eleven per cent in the course of normal distribution haulage work and the viscous fans seven to eight per cent under normal working conditions. The cost of installation is approximately one fifth of the total saving cost benefit per vehicle per year. In addition to saving fuel, fan noise can be reduced and the overall noise level of the vehicle can be cut by as much as 3db (A). Further benefits are obtained by improving heater performance thus keeping the interior of the vehicle warm at all times. Engine wear is also reduced. The fans are reliable and are fitted to many continental vehicles; most of the fans are approved by British manufacturers. /TRRL/

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• Corporate Authors:

  Institute of Road Transport Engineeers

  1 Cromwell Place
  London SW1 25F,   England 

  Institute of Road Transport Engineeers

  1 Cromwell Place
  London SW1 25F,   England 
• Authors:
  • KENNETT, P M
• Publication Date: 1976-9

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 25-27
• Serial:
  • TRANSPORT ENGINEER
  • Publisher: Institute of Road Transport Engineeers
  • ISSN: 0020-3122

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Commercial vehicles; Control; Control devices; Costs; Engines; Equipment; Fans; Fuel consumption; Heat; Heaters; Motors; Sound level; Thermal properties; Trucks; Vehicle compartments; Vehicle interiors; Ventilation systems; Wear
• ITRD Terms: 3874: Control; 224: Cost; 3674: Equipment; 6743: Heat; 1377: Interior (veh); 1236: Lorry; 1334: Motor; 6747: Sound level; 3392: Ventilation; 5293: Wear
• Subject Areas: Energy; Finance; Highways; Motor Carriers; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00149095
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Jul 2 1977 12:00AM