godlameroso wrote: ↑
Thu Feb 11, 2021 6:35 pm
PlatinumZealot wrote: ↑
Thu Feb 11, 2021 3:53 pm
FDD wrote: ↑
Wed Feb 10, 2021 11:58 am
I can not understand what you are actually saying (I am not on your level of tech knowledge).
Please can you explain, I will appreciate it.
A twinscrew compressor designed to turn at 50,000 rpms, driven by a double flow turbine.
In this way a common angular speed (rpm) between components is retained as per regulations and a bit more efficiency is to be had. Rotating mass will be higher but it will not be as detrimental because the system will be kept in narrow speed range.
Fits inisde the Vee ofthe engine with intercoolers above it and cross-flow intake runners above that.
More linear characteristics to air flow and rpm
More reliability of MGUH.
More efficient compression ( less heat) smaller intercoolers
You do realize twin screw compressors are incredibly bulky. Centrifugal compressor is by far the best choice for this efficiency formula.
https://cimg9.ibsrv.net/gimg/ls1tech.co ... a345e.jpeg
This is the twin screw supercharger on the C7 Z06 Vette. That engine makes 630bhp, and it takes that big ass blower to do it, the F1 engines need more air than that supercharger can provide. True F1 has a money is no object mentality, still I doubt you could make it small enough to fit within the V and flow enough air.
https://www.s2ki.com/forums/attachments ... bc1303.jpg
Here's a centrifugal compressor that flows more air than the twin screw pictured above. Notice how much more compact it is.
The size depends on the design.
If it spins faster you can make it smaller. So check those calculations.
At fifty thousand rpms, the blower might be less than a third of that size.
The twin screw is inherently more efficient because the compression happens inside the screw not outside it. Now... I have not evaluated how efficient it will be in an F1 application or as a package.
I came up with this for amusement but it is very possible when I think about it.
In terms of the rpm/ load characteristics..
The curve is a bit more linear, and the MGUH will definitely have to react faster to slow the speed down in off throttle situations. In quick on throttle situations you activate the MGUH again but boost should build much faster with the screw.
A bold endeavour but it's workable.