An Experimental Analysis of the Fluid Dynamic Efficiency of a Production Spark-Ignition Engine during the Intake and Exhaust Phase

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Engine</td><td align="center">Four-stroke spark-ignition</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">Number of cylinders, <svg height="14.3625" id="M2" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 19.137501 14.3625" width="19.137501" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.3625)">
<g transform="translate(72,-60.51)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑁</tspan>
</text>
<text transform="matrix(1,0,0,-1,-61.31,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑐</tspan>
</text>
</g>
</g>
</svg></td><td align="center">4</td></tr><tr><td align="left">Number of valves per cylinder, <svg height="14.3375" id="M3" style="vertical-align:-3.21404pt" version="1.1" viewbox="0 0 19.5875 14.3375" width="19.5875" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.3375)">
<g transform="translate(72,-60.53)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑁</tspan>
</text>
<text transform="matrix(1,0,0,-1,-61.31,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑣</tspan>
</text>
</g>
</g>
</svg></td><td align="center">2</td></tr><tr><td align="left">Stroke/Bore, <svg height="10.9125" id="M4" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 27.0375 10.9125" width="27.0375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐿</tspan>
<tspan style="font-size: 12.50px; " x="8.8521242" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="12.327958" y="0">𝐵</tspan>
</text>
</g>
</g>
</svg></td><td align="center">1.167</td></tr><tr><td align="left">Intake valve diameter/Bore, <svg height="14.7125" id="M5" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 32.349998 14.7125" width="32.349998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.7125)">
<g transform="translate(72,-60.23)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐷</tspan>
</text>
<text transform="matrix(1,0,0,-1,-62.07,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑖</tspan>
</text>
<text transform="matrix(1,0,0,-1,-58.85,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="3.4758339" y="0">𝐵</tspan>
</text>
</g>
</g>
</svg></td><td align="center">0.461</td></tr><tr><td align="left">Exhaust valve diameter/Bore, <svg height="14.7125" id="M6" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 33.8125 14.7125" width="33.8125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.7125)">
<g transform="translate(72,-60.23)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐷</tspan>
</text>
<text transform="matrix(1,0,0,-1,-62.07,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑒</tspan>
</text>
<text transform="matrix(1,0,0,-1,-57.68,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="3.4758339" y="0">𝐵</tspan>
</text>
</g>
</g>
</svg></td><td align="center">0.387</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

International Scholarly Research Notices

tab1

Table 1

Table 1: An Experimental Analysis of the Fluid Dynamic Efficiency of a Production Spark-Ignition Engine during the Intake and Exhaust Phase 