Why can’t we use the heat from combustion to make cars more efficient?

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Can we use the heat to boil water to turn a turbine? Or would the water never cool enough to be used again?

What about using the heat to create pressure and then releasing the pressure to help move the fly wheel?

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Anonymous 0 Comments

I think it might’ve been Volvo? Years ago I saw they designed a 5 cycle gasoline engine. The fifth cycle was water. It used the residual heat from the gasoline combustion to flash boil water in the cylinder. I don’t remember much about it but I thought it was cool.

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