ON THE INFLUENCE OF EMISSION RELATED ADJUSTMENT DATA AND ENGINES PARTS ON POLLUTANT EMISSION AND FUEL CONSUMPTION OF OTTO-ENGINES (PASSENGER CARS)

EINFLUSS EMISSIONSRELEVANTER EINSTELLDATEN UND MOTORBAUTEILE AUF SCHADSTOFFEMISSION UND DRAFTSTOFFVERBRAUCH VON PKW- OTTOMOTOREN

The paper reports on the results obtained so far of three research projects which determined the influence of parts of the engine and of adjustment parameters on emissions and fuel consumption. Adjustment parameters and parts of the engine of three models of mass production cars are systematically altered and the impact on emissions and fuel consumption determined. Random samples of each 50 running vehicles of the same car models give information on the frequency of maladjustments and failures of parts of the engine. The emission level and distribution of emission of running cars are compared to emission data of new cars. Maladjustments and deficiencies of the ignition system and of the mixture formation system have a major influence on the emission behaviour; they can be observed quite frequently in running cars. Pollutant emissions and fuel consumption can be significantly reduced by proper maintenance and adjustment. The mean values of emissions and consumption can reach the level of new cars again. As a first step toward a more efficient control of running vehicles one can consider the testing of ignition timing, dwell angle and idle control of the mixture formation system in accordance with the requirements of the manufacturer. (Author/TRRL)

• Supplemental Notes:
  • Proceedings of the 19th International Fisita Congress, Melbourne, Austria, November 8-12, 1982.
• Corporate Authors:

  Society of Automotive Engineers

  191 Royal Parade
  Parkville, Victoria 3052,   Australia 
• Authors:
  • Becker, K
  • Kueper, P F
  • Waldeyer, H
• Publication Date: 1982-11

Language

• German

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 99.1
• Serial:
  • Publication of: Society of Automotive Engineers (Australasia)
  • Publisher: Society of Automotive Engineers

Subject/Index Terms

• TRT Terms: Adjustment (Psychology); Adjustment factors; Air; Automobiles; Conferences; Equipment maintenance; Exhaust gases; Failure; Fuel consumption; Ignition; Ignition systems; Inspection; Mixtures; Motor vehicles; Motors; Otto cycle engines
• Uncontrolled Terms: Equipment adjustment
• Old TRIS Terms: Maladjustment
• ITRD Terms: 3816: Adjustment; 6714: Air; 1243: Car; 8525: Conference; 2442: Emission; 232: Fuel consumption; 1327: Ignition; 9047: Mixture; 1334: Motor; 1575: Vehicle inspection
• Subject Areas: Energy; Highways; Maintenance and Preservation; Vehicles and Equipment; I91: Vehicle Design and Safety; I95: Vehicle Inspection; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00376203
• Record Type: Publication
• Source Agency: ARRB
• Report/Paper Numbers: SAEA 82099
• Files: ITRD, TRIS, ATRI
• Created Date: Oct 30 1983 12:00AM