jkarran
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| posted on 6/2/08 at 05:50 PM |
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Locost centrifugal blower?
Has anyone come across diy centrifugal blowers built from old turbo compressor wheel, shaft and housings?
Two lots of ~1:4 gearing and you're about right around 1:16. Maybe salvage the gears from an old up MotoX 'box?
Pointless? Too much work? Any better source of small straight cut gears?
Really just wondering if anyone's tried it.
jk
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britishtrident
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| posted on 6/2/08 at 05:55 PM |
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Trouble is just that the gearing --- the centrafugal blower is spinning so fast you get a massive flywheel effect and the loads on the gears are
immense.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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indykid
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| posted on 6/2/08 at 06:13 PM |
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isn't it normally done with epicyclic gearboxes?
sources for which i don't know, but it's not just normal helical gears.
tom
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stevec
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| posted on 6/2/08 at 06:27 PM |
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Rotrex are about 10:1 through epicyclic gears.
Steve.
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jkarran
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| posted on 6/2/08 at 07:23 PM |
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Yeah, most seem to use a planetry gear system, I guess it keeps them compact and roughly cylindrical.
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thomas4age
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| posted on 7/2/08 at 12:34 PM |
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there aint no gears with teeth in a rotrex box. thy have a set of planetary rollers and a specially developed traction fluid that makes for a sort of
clutchlike thingy.
grtz Thomas
If Lucas made guns, Wars wouldn't start either.
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NS Dev
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| posted on 7/2/08 at 02:22 PM |
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yep, and there lies the great current development (which I foresaw in my Uni thesis in 1998) whereby you use traction fluid type toroidal variator
instead of the traction epicyclic, and operate the variator from the engine ECU.
You can alter the blower gearing constantly depending on engine speed and torque demand set by the throttle pedal.
then link the engine to a differential shunted toroidal transmission and you have a complete super efficient power plant with infinitely variable
drive and automatic control, but with higher performance and efficiency than a current manual box........................
Not that I know owt about this sort of thing!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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