by "PartyPooper2012" (PartyPooper2012)
Published 12/07/2017 at 13:40
by "PartyPooper2012" (PartyPooper2012)
Published 12/07/2017 at 13:40
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STARS: 0
So I had a brain fart... without searching it online first. What if we used compressed air from a compressor in the car to pump your engine with cold, fast, ample air until turbo spools up.
Apparently that’s being done...
!!! UNKNOWN CONTENT TYPE !!!
How long does a turbo or turbos take to get up to speed? Can’t be that long.
What if you had some sort of a circuit that regulated how much air is coming out of compressor. So initially it would be all compressed air and slowly dwindle down to nothing complemented by turbo(s) spinning up and providing air.
If it’s air engines like, air we can give...
"Dasupersprint - base trim is enough" (dasupersprint)
12/07/2017 at 14:31, STARS: 1
http://www.roadandtrack.com/new-cars/news/a28372/audi-sq7-tdi/
"Duck Duck Grey Duck FTMFW!" (theduckduck)
12/07/2017 at 14:42, STARS: 0
I remember getting that issue and found it fascinating!
"TheRealBicycleBuck" (therealbicyclebuck)
12/07/2017 at 14:47, STARS: 1
It would be easier to provide a constant boost by using the turbo to pressurize a tank and pulling the needed air off the tank instead of directly from the turbo. It’s been done before:
"Sovande" (sovande)
12/07/2017 at 14:48, STARS: 3
Volvo does this on the new 90 series cars. PowerPulse is the marketing name they give it.
"HammerheadFistpunch" (hammerheadfistpunch)
12/07/2017 at 15:00, STARS: 1
Yup, I was just coming to say this
"whatisthatsound" (whatisthatsound)
12/07/2017 at 15:16, STARS: 0
If it works on jet engines it works for my kart.
"DipodomysDeserti" (dipodomysdeserti)
12/07/2017 at 16:36, STARS: 0
Twin scroll turbos in normal sized engines basically spool instantly. My BMW reaches max torque at 1,200 RPM.
"uofime-2" (uofime-2)
12/07/2017 at 16:53, STARS: 0
the issue is that twin scroll exhaust housings tend to be rather restrictive to achieve that which will lower the volumetric efficiency of the engine. This is why they’d really like to use something which has a bigger exhaust housing (optionally single scroll) that spools slower with this system to provide torque fill until the turbo is spooled.
"I like cars: Jim Spanfeller is one ugly motherfucker" (qaaaaa)
12/07/2017 at 23:17, STARS: 1
They actually already do that, in a way. In what they call “
mild hybrids
”, there’s a 48V system independent of the 12V (or 24V if you’re a big truck) battery and alternator that send juice to your spark plugs, ECU, and all that other stuff. The 48V system does a lot of cool stuff- there was a writeup on here about a new Audi with the 48V system that featured a belt assisted start-stop system (BAS), where the engine shuts off if stopped in traffic, but instead of a conventional starter motor turning over to start it again, the BAS system would turn a belt to start the motor. Can also be done at highway speeds for economy.
On what you were talking about, when people say “electric super/turbocharger”, they’re (hopefully) referring to a what’s basically an air pump that runs off the 48V system that does the job of a turbo when the exhaust pressure isn’t high enough to actually make power gains. I think
this
is an article on it.