General aspects to improve the thermal efficiency of four stroke spark ignited internal combustion engines. Lean air-to-fuel ratios and high compression ratios call for a revised combustion chamber shape. One practical simple and cheap concept has been realized and tested on a large variety of engine sizes and types. Some test results are shown to evaluate the potential of lean burn high compression engines.
Lower Specific Fuel Consumption with High Compression Lean Burn Spark Ignited 4 Stroke Engines
Sae Technical Papers
1979 Automotive Engineering Congress and Exposition ; 1979
1979-02-01
Conference paper
English
Lower specific fuel consumption with high compression lean burn spark ignited 4 stroke engines
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