TECHNIQUE OF DIESEL FUEL INJECTION - POSSIBILITIES FOR EMISSION REDUCTION ON ENGINES FOR COMMERCIAL VEHICLES

The more stringent US and European standards for direct injection diesel engines in commercial vehicles, scheduled for 1991 and 1994, required particular optimization of the engine and fuel injection system to meet the requirement for particulates, gaseous emissions (hydrocarbons, nitrates) and combustion noise limits. Measures necessary in the engine and the injection system to achieve the targets are reviewed. Nitrate emissions were reduced by retarding the start of injection at high load and high speed. Decreased particulate emissions were achieved by higher injection pressures. Acceptable cold mode operation required advanced timing. Combustion noise was mainly influenced by combustion pressure rise and start of injection, with only limited potential for its reduction. Life time stability, improved durability and reduced tolerances were the demands on the fuel injection equipment for start of injection, injection pressure and fuel curve shape. Fuel consumption was generally adversely affected by most measures to improve emissions, by approximately 10 per cent.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00012661
• Authors:
  • Krill, W
• Publication Date: 1989-5

Language

• English

Media Info

• Pagination: p. 310-315
• Serial:
  • ATA - INGEGNERIA AUTOMOTORISTICA
  • Issue Number: 5
  • Publisher: N/A
  • ISSN: 0001-2661

Subject/Index Terms

• TRT Terms: Carbon monoxide; Combustion; Diesel engines; Exhaust gases; Fuel injection; Fuels; Hydrocarbons; Improvements; Legislation; Measurement; Sound; Standards; Trucks
• Geographic Terms: Europe; United States
• ITRD Terms: 7391: Carbon monoxide; 3860: Combustion; 1314: Diesel engine; 2442: Emission; 8034: Europe; 3850: Fuel; 7367: Hydrocarbon; 9108: Improvement; 3830: Injection (fuel); 1556: Legislation; 1236: Lorry; 6136: Measurement; 6748: Sound; 187: Specification (standard); 8122: USA
• Subject Areas: Energy; Law; Motor Carriers;

Filing Info

• Accession Number: 00605862
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM