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CVT Alternator Drive

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nuckolls.bob(at)aeroelect
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Posted: Tue May 17, 2011 11:22 am Post subject: CVT Alternator Drive

At 10:46 AM 5/17/2011, you wrote:

 	  Quote: 	
		  



Fallbrook Technologies has a neat Continuously Variable Transmission 

for alternators, engine accessories, etc. Worth a glance:

http://fallbrooktech.com/03_CVAD_Crank.asp


	


   Used to have devices like this on virtually every

   airplane with a 400 Hz AC power system. Vickers used

   to make a constant speed drive used on the '52.

   We moved away from this added weight, volume and

   complexity by designing aircraft AC systems to perform

   without having to maintain a constant system frequency.



   They're now "wild frequency" system with nominal

   operating range of 400-800 Hz. Taking the extra

   mechanism out of the loop allowed the space and

   weight to be used to generate more engergy in the

   same volume that used to be occupied by the

   alternator/drive system.

   Bob . . .

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