DEVICE AND TECHNIQUE FOR DETERMINING THE OCTANE REQUIREMENTS OF INDIVIDUAL CYLINDERS OF AN ENGINE
An electronic device was constructed which, when used with the breakerless transistorized ignition system now common on U. S. cars, allows the octane requirements of the individual cylinders of a multicylinder engine to be determined. A detailed schematic diagram of the Selective Ignition Retard Device (SIRD) is included in the paper to allow construction of the unit by interested parties. SIRD has been employed in studies aimed at elucidating the factors affecting octane requirements of engines. Some typical test results are presented.
- For Meeting held October 20-23, 1980.
Warrendale, PA United States 15096
- GRAIFF, L B
- Ehrhardt, W M
- Haury, E J
- Publication Date: 1980
- Pagination: 6 p.
- Society of Automotive Engineers Preprint
- Publisher: Society of Automotive Engineers (SAE)
- TRT Terms: Detonation; Electronic equipment; Ignition; Ignition systems; Internal combustion engines; Octane number; Retarder control; Sensors; Specifications; Vehicle power plants
- Uncontrolled Terms: Cylinders; Requirement
- Old TRIS Terms: Automobile engines; Electronic devices; Octane rating; Selective ignition retard device
- Subject Areas: Highways; Vehicles and Equipment; I96: Vehicle Operating Costs;
- Accession Number: 00335106
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: SAE 801353
- Files: TRIS
- Created Date: Oct 28 1981 12:00AM