VENTURI VACUUM TRANSDUCER ENABLES HEAVY EGR CONTROL

In order to significantly reduce NOx levels by EGR (exhaust gas recirculation), while maintaining good fuel economy and driveability, the EGR flow rate must be properly and accurately controlled under a variety of engine operating conditions. Toward this objective, a new EGR control system was developed. It utilizes a carburetor venturi vacuum for a stable reference signal that represents the engine operating condition and it controls the EGR flow rate by using a feedback principle to obtain sufficient flexibility compatible with several different engines.

  • Supplemental Notes:
    • From SAE Meeting held Juen 9-13, 1980.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Aoyama, S
    • HAYASHI, Y
  • Publication Date: 1980

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00331771
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 800824
  • Files: TRIS
  • Created Date: Jul 9 1981 12:00AM