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Good. So, we agree that we have a set amount of work being produced by the combustion cycle.
Let's then take away the pumping work from the produced work, and agree that this is the work being made available to do everything asked of the engine. This includes overcoming powertrain and other mechanical losses, overcoming rolling losses, overcoming aerodynamic losses, driving the alternator, driving the engine oil pump, driving any number of other accessories, propelling the vehicle in which the engine is installed, blah-blah-blah... Fine.
Now, we want to maximize this available work as a percentage of the produced work, right?
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