ELECTRIC RETARDERS

THE REPORT DESCRIBES THE PRINCIPLE, DESIGN AND METHOD OF OPERATION OF ELECTRIC RETARDERS. THE DEVICES ARE USED TO PROVIDE ADDITIONAL FRICTIONLESS BRAKING EFFORT TO ASSIST THE NORMAL BRAKING SYSTEM OF HEAVY VEHICLES. THE UNITS ARE INSTALLED BETWEEN A GEARBOX AND DIFFERENTIAL, AND WHEN SWITCHED ON, OPERATE BY PRODUCING BRAKING EFFORT DUE TO THE DISTORTION OF A MAGNETIC FIELD BY A ROTATING MEMBER. THE SUBSIDIARY FORM OF BRAKING HAS BEEN FOUND TO BE OF BENEFIT WHEN FITTED TO HEAVY LORRIES AND COACHES, ESPECIALLY WHEN THEY OPERATE IN MOUNTAINOUS DISTRICTS; IN THIS APPLICATION THE RETARDER REDUCES THE RISK OF BRAKE FADE OR EVEN COMPLETE SYSTEM FAILURE, AND ALSO REDUCES THE TIME BETWEEN BRAKE SYSTEM ADJUSTMENT AND OVERHAUL. THE PAPER WAS PRESENTED AT THE INSTITUTION OF MECHANICAL ENGINEERS, AUTOMOTIVE DIVISION, SYMPOSIUM ON AUTOMOTIVE EQUIPMENT. SEPT 13-14, 1972

• Supplemental Notes:
  • REP 70 NC79
• Corporate Authors:

  Institution of Mechanical Engineers

  1 Birdcage Walk
  London SW1H 9JJ,   England 
• Authors:
  • Reed, J
• Publication Date: 1972

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Brakes; Braking; Bus transportation; Electrical equipment; Transmissions; Trucks
• Subject Areas: Highways; Motor Carriers; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00224726
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Conf Paper
• Files: TRIS
• Created Date: May 24 1974 12:00AM