in SI engines fuel/air mixture is compressed. The disadvantage is that one can't achieve high compression ratios. I was wondering if it was possible to compress fuel/air mixture to the maximum possible ratio without fear of ignition and compress a pure air mixture to very high ratios 25:1 and then mix the two together. The fuel/air mixture would ignite and burn at nearly constant volume. This way could we get high compression ratios with SI engines?(adsbygoogle = window.adsbygoogle || []).push({});

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# SI engine compression

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