Formulary Efficiency

Right to left: losses on exhaust, cooling and interior friction. The 'rest' is effective working energy.

German version

Max. possible
efficency
Petrol engine
(indirect injection) 		25 - 35 %
Petrol engine
(direct injection) 		bis 37 %
Diesel engine
(side combustion chamber) 		35 - 40 %
Diesel engine
(direct injection) 		bis 45 %
Shift gearbox bis 99 %

       Pe
=
        Pi

Pe = Pi ·

        Pe
Pi =
         

       Pab
=
        Pzu

Pab = Pzu ·

          Pab
Pzu =
           

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Please enter numbers only in two of the three fields!
Pi
Pzu 		Indicated power
(input) 		kW
Pe
Pab 		Effective power
(output) 		kW

Eta		 Efficency