A strategy to improve the efficiency of stoichiometric spark ignition engines (Articolo in rivista)

Type
Label
  • A strategy to improve the efficiency of stoichiometric spark ignition engines (Articolo in rivista) (literal)
Anno
  • 1996-01-01T00:00:00+01:00 (literal)
Alternative label
  • Diana S., Giglio V., Iorio B., Police G. (1996)
    A strategy to improve the efficiency of stoichiometric spark ignition engines
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Diana S., Giglio V., Iorio B., Police G. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • SAE Paper 961953 (ISSN 0148-7191). Also in SAE Vol. SP–1204 \"Outcome of the European Programme on Emissions, Fuels, and Engine Technologies\", pp. 27-37. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto Motori, CNR, Napoli. (literal)
Titolo
  • A strategy to improve the efficiency of stoichiometric spark ignition engines (literal)
Abstract
  • A commercial four-stroke spark-ignition engine has been tested at steady conditions, with three different compression ratios, namely; 10, 11.5 and 13. Exhaust Gas Recycle (EGR) has been varied in the range 0% - 20%. Air/fuel ratio has been maintained at stoichiometric by a closed-loop control with Exhaust Gas Oxygen sensor feedback. Significant gains on fuel economy and CO emission index have been achieved at medium and high loads by the simultaneous adoption of EGR and high compression ratios. In these conditions the sum of HC and NOx emission indices attains significant reductions at any load. The tests have shown that EGR allows to avoid knock even at wide open throttle and Maximum Brake Torque timing. (literal)
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