Author Topic: Inertia dyno  (Read 330 times)

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Offline aclarke

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Inertia dyno
« on: December 27, 2016, 09:57:11 pm »
Started a saw dyno project last year and have made some progress with it recently.  Hoping to be able to accurately monitor small changes such as carburetor venturi size, muffler outlet size etc. Will have intake air temp, exhaust gast temp and cylinder head temp to start with. Still need to make the final mount for the bar and also the brake lines etc.

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Offline aclarke

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Re: Inertia dyno
« Reply #1 on: December 27, 2016, 10:00:11 pm »





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Offline RoyM

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Re: Inertia dyno
« Reply #2 on: December 27, 2016, 10:10:37 pm »
It will be interesting to see how it works. Very nice fab work.
Old age and treachery always overcome youth and enthusiasm

Offline mdavlee .

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Re: Inertia dyno
« Reply #3 on: December 27, 2016, 10:10:44 pm »
Looking good Adam!

Offline adam32

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Re: Inertia dyno
« Reply #4 on: December 27, 2016, 10:17:24 pm »
Nice! Did you figure out the balance issue on wind down?

Offline aclarke

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Re: Inertia dyno
« Reply #5 on: December 27, 2016, 10:26:17 pm »
Had it Dynamically balanced at one of then local machine shops that does aircraft engine overhauls. (about $90)
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Offline aclarke

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Re: Inertia dyno
« Reply #6 on: December 27, 2016, 10:31:45 pm »
Second pic on on far right shows a ratchet hub (sprag) so the flywheel disengaged from the saw as soon as power is removed. Was gonna use a Torque limiter from a tractor PTO but decided on this route.
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Offline adam32

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Re: Inertia dyno
« Reply #7 on: December 28, 2016, 10:10:44 am »
Sprag clutch...now your talking my lingo...the flywheel goes into autorotation ;)

Offline Cut4fun .

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Re: Inertia dyno
« Reply #8 on: December 28, 2016, 04:04:03 pm »
 :o Dang!  :o   8)

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Offline Chris-PA

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Re: Inertia dyno
« Reply #9 on: December 28, 2016, 09:03:54 pm »
Very nice work!

 

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