So guys, if a turbo is a compressor we use to boost and engine why not just use a turbo as an engine itself? just rig it up with sparkplugs and send an air/fuel mixture through it, and use the output shaft to drive a transmission with a major gear reduction before the clutch instead of the shaft driving a compressor. has an engine like this ever been created?
So guys, if a turbo is a compressor we use to boost and engine why not just use a turbo as an engine itself...
Alexander White
Jacob James
because that's what an engine is
Charles Murphy
>there are people that are this stupid
Jace Martinez
You're basically talking about a turbine engine, which have terrible throttle response and are not very viable for use in cars unless they're used as a generator in a vehicle with electric motors.
Benjamin Sanders
oh cool, yeah that's what i was getting at
Christopher Diaz
So, like, a turbine engine?
Slow throttle response, insane fuel consumption, hot exhaust. Maybe for use in a hybrid system with a complicated system for mixing cold air into the exhaust stream.
Kayden Roberts
You can actually make a turbine engine out of a turbo fairly easily. Some guy put 2 on a street luge. I never heard if he survived.
Jeremiah Harris
m.youtube.com
Jay Leno made a great video about it
Mason Perez
It's already been done
Julian Adams
Wow, that's amazing. Imagine if we had something like that today. I don't think any automobiles outside of the M1A1 use turbine engines.
Dylan Long
Ford built a turbine powered truck tractor in the fifties too. But they all have the same drawback, high fuel consumption at idle. Even the M1A1 is the same. Even if the fuel economy wasn't a issue, the engines were expensive to produce compared to contemporary gas/diesel engine.
Andrew Fisher
Best bet is to hook the turbine up to a generator. Turbine would be real light compared to the engine, but then you need some batteries for that start-stop driving I would assume.
It would be really easy to tie regen braking and stuff into it with the batteries. Plus turbines are hella reliable and simple. Precision in manufacturing is pretty important but once you get past the really high temps and RPM, they are simple machines. As are electrical motors and generators.
What about that GM car from the 60s or whatever that used the turbine? Just from seeing Jay Leno drive it for a couple minutes on TV, it seemed practical enough.
Elijah Peterson
Or just fuck all of that and use just a Turbonique rear diff. Drive the car off of that alone.
Christian Edwards
>its a OP invents something that already exists episode
Aaron Long
nice meme faggot
Adrian Hall
You are fucking retarded. Please never reproduce.
Lucas Thompson
turbine engines aren't good for applications where a wide rpm range is needed like in a car where you idle at ~700 rpm and rev up to ~7,000rpm for peak power, a turbines output shaft might idle at 4,000 rpm and make peak power at 8,000 rpm. they're typically more efficient within their power band, but need to be left there to operate properly.
FedEx IIRC though is investing in some specialty turbine hybrid delivery trucks that use the turbine as a generator, and not a direct member of the drivetrain
Andrew Hall
yeah why not???
Matthew Cooper
Coupling a small gas turbine's primary shaft that mounts the turbine wheel and compressor wheel(s) to a mechanical output is often fraught with difficulty. It is easy to cause the compressor to stall with rapid changes of load, such as you would find in an auto setup, and it places significant thrust on the CHRA.
A turboshaft engine can be used, and has been used already. In this configuration the primary shaft holds the compressor wheel(s) and turbine wheel, where a secondary shaft mounts another axial turbine wheel and is connected to the load. Hot combustion gasses first flow across the power unit's turbine, applying power to the compressor and continuing the combustion. The now cooler combustion gasses then flow over the second axial turbine wheel, applying power to the load. The combustion gas between the power unit's turbine and the driven turbine act as a fluid coupling and prevents both compressor stall and damage to the CHRA from thrust loads. The downside is a two to five percent loss of torque compared to a directly coupled turbine unit, but with the benefits of increased reliability and the ability to drive varying loads at varying speeds. A directly coupled gas turbine cannot do this, and are designed to be coupled to compressors, generators and pumps with a single set operating speed.
The idea certainly has merit. Gas turbines can run on poor quality fuel, but as another poster has mentioned the low-load consumption is far, far higher than a reciprocating engine.
A small gas turbine with output power sufficient to move a conventional car will have a shaft speed of between sixty thousand and one hundred and twenty thousand rpm. Idle shaft speed may be around four to eight thousand rpm.
Detroit Diesel use a secondary turbine aft of the turbocharger outlet connected to the flywheel by viscous coupling to add efficiency to the DD15 diesel engine. Compressors and turbines have come a long way!
Adam Young
Aww, couldn't help but dole out more of your Full Sail Shitposter advice all over Veeky Forums, huh?
We've got your fucking number, shitfam.
archive.4plebs.org
Don't make us call your mom. Again. :)
Lucas Anderson
apparently you are
Anthony Campbell
you basically described a rotary engine.
Oddly, they don't handle boost all that well.
Henry Lopez
Done
Aaron Brown
There was a turbine auto trans f1 car. Idled at 50% throttle. Thottle lag was terrible.