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N509RV(at)eckenroth.com
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 Posted: Thu Sep 10, 2020 3:30 pm Post subject: Revmaster 'dual' alterantors |
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Dan
I'll try and get a picture of that casting for you.
Paul
On Thu, Sep 10, 2020 at 4:54 PM dj_theis <djtheis58(at)gmail.com (djtheis58(at)gmail.com)> wrote:
| Quote: | --> AeroElectric-List message posted by: "dj_theis" <djtheis58(at)gmail.com (djtheis58(at)gmail.com)>
user9253 wrote:
> There are 4 black screws in the picture that look like they might hold a cover
> on. Is it possible to pipe pressurized air into that cover to cool the coils?
> If the coils were kept cool, their ampacity would be greatly increased.
It is possible and I agree it's worth considering. I'll look at the CDI eletronics casting (which is what those screws hold in place) to see if there is a pathway to generate an inlet and egress for air. I don't have any good photos of the inside of that casting. Maybe I can pull that casting off without pulling the engine. I'll look tonight.
Thanks for the suggestion.
Dan Theis
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Scratch building Sonex #1362
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dj_theis
Joined: 28 Aug 2017
Posts: 56
Location: Minnesota
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| Posted: Fri Sep 11, 2020 4:54 am Post subject: Re: Revmaster 'dual' alterantors |
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| N509RV(at)eckenroth.com wrote: | Dan
I'll try and get a picture of that casting for you.
Paul
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Thanks Paul,
I was able to get an image (attached) of the outside of the casting. With 5e CDI casting removed, does it appear that there is an air flow path that would help ventilate the PMA coils?
I am imagining having a fitting to feed air from the top of the engine on one side (shown in the photo) and allow the exit air on the other side of the casting to exit into the lower engine area.
Dan
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| Description: |
| Left side of rear crankcase showing CDI casting |
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1.19 MB |
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1031 Time(s) |
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_________________
Dan Theis
Scratch building Sonex #1362
Still working on the Revmaster Alternator improvement |
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