Definition of lean-burn in English:

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Relating to an internal combustion engine designed to run on a lean mixture to reduce pollution: lean-burn technology
More example sentences
  • They have been proven to go beyond the lean-burn limit of a standard spark ignition.
  • The main difficulties came from the variability between cylinders, which was amplified during lean-burn operation.
  • Such diesel engines and ‘lean-burn’ petrol engines are more economical than conventional engines.
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