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Old 01-05-2011, 02:22 PM   #11 (permalink)
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Okay there is nothing new about his idea....

Same problem exists too. Turbos spin at 100,000+ rpm. Alternators spin at 6000 rpm max.

There is a company that is marketing a design and the only way they are getting around the problems is a custom alternator driven by a rather large turbine.
Couldn't it just be geared down?

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Old 01-05-2011, 02:25 PM   #12 (permalink)
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You can buy geared down turbos meant to be used as 'superchargers', as well.
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Old 01-05-2011, 04:18 PM   #13 (permalink)
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Couldn't it just be geared down?
It could but you will loose efficiency
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Old 01-05-2011, 05:27 PM   #14 (permalink)
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Gears that withstand 100,000 rpms are not garden variety.
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Old 01-05-2011, 06:29 PM   #15 (permalink)
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I knew there was a reason I hesitated on posting this up. I know there are alot of nay-sayers about such an idea. But there are 50+ other variables that go into the rate of rotation...

...So does anyone know of any posts/documents about a completed unit? or semi-feasible prototype?
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Old 01-05-2011, 06:43 PM   #16 (permalink)
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Originally Posted by ConnClark View Post
Okay there is nothing new about his idea....

Same problem exists too. Turbos spin at 100,000+ rpm. Alternators spin at 6000 rpm max.

There is a company that is marketing a design and the only way they are getting around the problems is a custom alternator driven by a rather large turbine.
No offense but why does an electric producing body have to be an alternator?

An antique solid state magneto like device could make current at very hi RPM and be built into the shaft, no brushes = better
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Old 01-05-2011, 07:33 PM   #17 (permalink)
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No need to gear them down when the small engine boost is reduced by using multiple alternators in a serpintine setup the gasses won't create much boost to begin with and will be lessesned by the load an excess can be dealt with via traditional means Blow off valve tube.

you also have to look at the type of turbo being used you can get a sealed unit where it will have more drag due to its internal oiling system as compared to a f low through like in older car models.

1,000 different ways and no one has actually done it yet and talked about it at least ...

Good topic for discussion my 1st comment is because I thought that it needs to be tied that is why I try and not draw too much attention to it untill I did it myself and then let the criticism come out.
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Old 01-05-2011, 08:59 PM   #18 (permalink)
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...So does anyone know of any posts/documents about a completed unit? or semi-feasible prototype?
I know this one from a company founded in 1966 ... been building Turbo-Alternators sense 1980.

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Old 01-14-2011, 02:18 AM   #19 (permalink)
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just put like a 1 inch gear on the turbo and a 6 inch gear on the alternater it's about a 36 to 1 gearing i think, if i did the math right so then thats about 2777 rpm on the alternater and at that gearing it should have quit a bit of torque, don't you think??? and you only need to have about a 16 to 1 gear reduction if the turbo hits 100000 rpm and make sure it doesn't take to much power from the engine from to much back pressure(at 36 to 1 gearing you could have it to where 4 pounds of exhaust pressure equals 144 pounds of torque on the alternater then a gain i could be wrong??? anyone???)
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Old 01-14-2011, 02:31 AM   #20 (permalink)
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Yep, you could be wrong.

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