nersut
Veteran Member
Joined: September 2012
Posts: 223
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Post by nersut on Dec 10, 2014 14:08:22 GMT -5
Hi everyone I just came across this funny little (around 60-600 cfm range) turbocharger from "Aerocharger Turbo Systems" Link - It has a small oil reservoir built-in the compressor housing
- Ceramic ball bearing system, situated in front of the comressor wheel
- Wicks for oil lubrication?!
 - Variable nozzle guide vanes
Cheers'
Erik
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Post by racket on Dec 10, 2014 15:16:58 GMT -5
Hi Erik
Yeh , a neat little unit thats been around for a fair while , theres a nice article about installing one in Corky Bells's "Maximum Boost" turbo book .
I'm not too sure they'd be up to the job of supplying high boost levels though as theres considerable heat generated in ball bearings once those rpm and axial air loads build
Cheers
John
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Post by smithy1 on Dec 15, 2014 13:43:01 GMT -5
Yeah....all of my "mini" turbines have full compliment ceramic bearings, they usually run a lube feed to the front bearing and a "mist" lube feed to the rear via the shaft tunnel, the only issue is during an afterburn/reheat situation, the air flow through the shaft tunnel is essentially reversed and the rear bearing suffers badly.....don't ask me how I know  ..... There looks to be a lot of "overhang" happening in the picture above, a lot of weight behind the bearings, she'd want to be well balanced. |
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