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Crevice volume effect on spark ignition engine efficiency

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Academic year: 2021

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Figure

Figure 1-1  LA4  drive  cycle  results for  a  small  passenger  vehicle  showing  majority of  city driving takes place  at part load.
Figure  1-4  Indicated  mean  effective  pressure  sensitivity  to  burn  angle.  dln(imep)/dx(6) denotes  the  percentage  change  in  imep  due  to  a  1  percent  additional  mass burned  at  crank  angle  6
Figure 1-6  Normalized  change  of  net  indicated  efficiency  with  compression  ratio;
Figure 2-1  Sensitivity  of  GIMEP  to  heat  release  schedule  plotted  alongside  crevice outflow  of  reference  engine  (see  Table  2-1)  operating  at  part load  (see  Table 2-3).
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