Quote:
Originally Posted by Old Mechanic
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That Chiron Free-piston Engine is hardly a standard IC engine, you know :-) Indeed, at a quick glance it looks like a variation on a Stirling engine.
From
Internal combustion engine - Wikipedia, the free encyclopedia
"Most steel engines have a thermodynamic limit of 37%. Even when aided with turbochargers and stock efficiency aids, most engines retain an average efficiency of about 18%-20%."