3 ms·

Weight, size, cost, and loss of efficiency. There are better things you could do to increase engine performance that are lighter, smaller, and cheaper. Also o

Weight, size, cost, and loss of efficiency. There are better things you could do to increase engine performance that are lighter, smaller, and cheaper. Also of you really really want to defeat turbo lag. The easiest way is to seriously delay ignition timing so the fuel is still burning as it enters the turbine leaving more energy for it to extract and therefore staying spooled up. edit: Not to say your idea wouldn't work, indeed I'd love to see it. Its just not a practical solution. Not that In ever let practicality stop me. Edit to the edit: https://dieselnet.com/tech/engine_whr_turbocompound.php https://dieselnet.com/tech/engine_whr_turbocompound.php https://www.eere.energy.gov/vehiclesandfuels/pdfs/deer_2004/session4/2004_deer_hopmann.pdf https://www.eere.energy.gov/vehiclesandfuels/pdfs/deer_2004/... So, ya know, disregard everything above.

hinkley 1y ago
There’s been talk for years of just scavenging energy from the exhaust for hybrid drivetrains. To power the peripherals if nothing else. Part of it is that there’s another reason besides a turbo to have a little extra energy left in the exhaust: thermal catalysis of noxious chemicals in the exhaust flow. So there’s a bit of unburned fuel going to the cat for emissions control and people have wondered if we can take some of it back after the converter. For a while every time there was a breakthrough in solid state heat recovery someone mentioned vehicle exhaust.