RON-INCREASED COMPRESSION RATIO ENGINE DEMONSTRATION (91)

This program was an experimental effort to evaluate several methods of reducing the octane requirement of a 350 CID Chevrolet engine (1975 California model). Increased squish and two spark plugs per cylinder did not provide the expected gains in this particular application. Aluminum heads and a knock-actuated spark control system were identified as potential methods of reducing octane requirement. The spark control system was incorporated into a vehicle emission control system to enable the use of higher compression ratio heads without substantial losses in emission control and with a gain in fuel economy.

• Corporate Authors:

  Exxon Research and Engineering Company

  Products Research, US Highway #1 and Park Avenue
  Linden, NJ  United States  07036

  Environmental Protection Agency

  Emission Control Technology Division, 2565 Plymounth Road
  Ann Arbor, MI  United States  48105
• Authors:
  • Godici, P E
  • Kraus, B J
• Publication Date: 1978-10

Media Info

• Pagination: 624 p.

Subject/Index Terms

• TRT Terms: Air pollution; Air quality management; Compression; Control systems; Exhaust gases; Fuel consumption; Ignition systems; Internal combustion engines; Octane number; Reduction (Chemistry); Spark ignition engines; Vehicle power plants
• Old TRIS Terms: Automobile engines; Compression ratio; Octane rating; Reduction
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00191288
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: EPA/460/3-78/009
• Contract Numbers: EPA-68-03-2162
• Files: TRIS
• Created Date: May 11 1979 12:00AM