Question

What is the meaning of ratio 14.5:1 in diesel engine?

Answer 1

The reason for this is the working principle of a diesel engine: controlling load not through air mass (which is always in excess) but through fuelmass (injection time). Remember that a stoichiometric equivalence factor (λ = 1.00) means an air-fuel ratio of 14.7:1 for gasoline engines and 14.5:1for diesel