Definition of lean-burn in English:



  • Relating to an internal combustion engine designed to run on a lean mixture to reduce pollution.

    ‘lean-burn technology’
    • ‘Businesses that run lean-burn, spark-ignited natural gas industrial engines face the same challenges as other gas-fueled engine operators - and then some.’
    • ‘Such diesel engines and ‘lean-burn’ petrol engines are more economical than conventional engines.’
    • ‘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.’
    • ‘With lean-burn natural gas, propane or dual-fuel industrial engines, you face tough, twin challenges in exhaust emissions control - with stiff penalties for non-compliance.’