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Author Topic: APS/Ω Gas turbine bike build  (Read 490658 times)
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Mobacken Racing
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« Reply #750 on: November 28, 2014, 12:59:22 AM »

How are you reducing the rpm from 30 grand to the slower speed needed to turn the engine sprocket?  It seems the ring and pinion gear alone is not enough reduction.

The gearbox has a 5:1 reduction so the front sprocket will have a max rev of 6000rpm.
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Mobacken Racing
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« Reply #751 on: November 28, 2014, 04:40:50 PM »

Anders,
Go to this web site and down load the tech article on high speed gear lubrication.  http://turbolab.tamu.edu/proc/turboproc/T33/t33-06.pdf

Interesting reading.

Rex



Hi Rex,

Very interesting reading indeed, and it somewhat confirmed my idea that the downside with post-mesh lubrication is acceptable compared to the alternative with all kinds of gear teeth damage.

If you consider the way the gearbox will work during a run it should probably work with injecting oil into the mesh, the gearbox will run from 0 rpm all the way up to 30.000/6.000rpm at the end of the run a couple of kilometers down the track so it will only see full revs a short while before I reach the end of the track.

Do you have a guess how much power I might lose on pre-mesh injection?

Industrial gears with 10.000h of life expectancy face all kinds of long term problems that I won´t have to deal with, I will happily change gears every 2 hours or so since that equals several years of racing.  smiley

Cheers!
/Anders
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wobblywalrus
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« Reply #752 on: November 28, 2014, 08:50:50 PM »

Micro shot peening can roughen the surface so it retains lube better.  It is something I use on the race motor in places where I am worried about getting and retaining enough oil.  It seems to work.  An opinion from an expert on surface finishes might be worthwhile.   
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Mobacken Racing
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« Reply #753 on: November 29, 2014, 01:18:48 AM »

Damnit, I made an error in the previous post. This is what it would have looked like, I blame the beer. smiley

"Very interesting reading indeed, and it somewhat confirmed my idea that the downside with pre-mesh lubrication is acceptable compared to the alternative with all kinds of gear teeth damage."

Cheers!
/Anders
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Old Scrambler
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Going Fast - Slowly




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« Reply #754 on: November 29, 2014, 04:02:13 PM »

Beer induced mistakes are allowed on the board..............not on the build grin grin grin
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2011 AMA Record - 250cc M-PG TRIUMPH Tiger Cub - 82.5 mph
2013 AMA Record - 250cc MPS-PG TRIUMPH Tiger Cub - 88.7 mph
2016 AMA Record - 750cc M-CG HONDA CB750 sohc - 130.7 mph
2016 AMA Record - 750cc MPS-CG HONDA CB750 sohc - 137.7 mph
Chasis Builder / Tuner: Dave Murre
Mobacken Racing
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« Reply #755 on: November 29, 2014, 05:15:34 PM »

Thats a rule I can abide. smiley

I am currently walking around like an 90 year old man, tried my first marathon today where we were 40-ish runners in a group dressed up for the swedish lucia event. We ran for 4 hours and 30 minutes and I can feel it in my knees right now, luckily most of it can be cured with beer I think.  grin



Cheers!
/Anders
« Last Edit: November 29, 2014, 05:17:16 PM by Mobacken Racing » Logged
Stainless1
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« Reply #756 on: November 29, 2014, 10:05:57 PM »

Nope... that's gonna take whiskey  cheers
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #757 on: November 29, 2014, 10:54:52 PM »

I second that. cheers
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Mobacken Racing
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« Reply #758 on: December 01, 2014, 05:01:52 PM »

Dear Mr. Johansson,

Congratulations! The Gas Turbine Landspeed Motorcycle is an amazing project and you were able to drive a great amount of votes.

You have won the November round of the Boca Bearings Innovation Contest! Kindly inform me of your shipping address to which we can send your Go Pro camera.

Best regards,

Thiago Medeiros


 cheers cheers cheers
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Glen
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« Reply #759 on: December 01, 2014, 05:09:00 PM »

Congrats. cheers
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Glen
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Peter Jack
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« Reply #760 on: December 01, 2014, 05:17:45 PM »

Congratulations. I've got to say though, that's a lot of work just to win a camera!!!  grin grin evil

Well done Anders.

Pete
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manta22
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What, me worry?




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« Reply #761 on: December 01, 2014, 05:37:23 PM »

Very well deserved, Anders  cheers  cheers

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
generatorshovel
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« Reply #762 on: December 01, 2014, 06:37:44 PM »

Congratulations Anders , you achieved the win without a facebook account ! that's a 1st  cheers
Tiny
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Tiny (in OZ)
I would prefer to make horsepower, rather than buy, or hya it, regardless of the difficulties involved , as it would then be MINE
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« Reply #763 on: December 01, 2014, 11:08:39 PM »

Great! Now we might get to see some great videos...right?
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Mobacken Racing
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« Reply #764 on: December 02, 2014, 09:46:09 AM »

Thanks a lot! smiley
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