On-board Air deflation/inflation system? - JeepForum.com
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post #1 of 20 Old 03-02-2009, 01:09 AM Thread Starter
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On-board Air deflation/inflation system?

So I came up with an epiphany (spelling?) today and decided it'd be pretty sweet if there was an on-board air deflation and inflation system. (This came with a self-realiztion of how lazy I really am)

I did a little research on good ole google and didn't find any results.

So would it be possible to create something like this?

All you'd really need is an air compressor, a few hoes (everybody could always use a few of those pun intended) and couple switches.

I'm not creative enough to think of any "development plans" but I know a few of you are...


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post #2 of 20 Old 03-02-2009, 01:16 AM Thread Starter
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forgot to add for all u geniuses out there this is for the tires

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post #3 of 20 Old 03-02-2009, 01:31 AM
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Hate to burst your bubble there chief, but OBA (On Board Air) has been around for a while. People have used everything from small compressors to ARB locker compressor to belt driven York/Sanden compressors to cO2 tanks. Search "York OBA", "Sanden OBA" or just "OBA" here on JF.

If you wanna do some light reading about the subject check out www.onboardair.com

Brad

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post #4 of 20 Old 03-02-2009, 01:34 AM Thread Starter
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I know about on board air and compressors and all that stuff.

I'm sayin could u hook up an on board air compressor so that you can just deflate your tires for the trails then inflate them back up when you're ready to get back on the pavement.

This is mostly for the lazier people and something to flaunt to your friends.

Just an idea

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post #5 of 20 Old 03-02-2009, 01:38 AM
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Like somehow deflate the air pressure in your tires into a tank and then when your ready to leave put that same air back into the tires? Uh...I dont believe ya can do that lol I might be wrong. You would be better off buying some tire deflators to deflate your tires when you wheel and then have a source of OBA to re-fill them when your done.

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post #6 of 20 Old 03-02-2009, 01:41 AM Thread Starter
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yeah, not drain the air into a seperate tank but just deflate them a little for the trails all at once then pump back up with OBA when you're gonna get back on the road.

That's the major design flaw i saw in my head too. How would you deflate the tires without getting out and doin it yourself? and then how would you inflate them again?

nice try i guess though right? lol

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post #7 of 20 Old 03-02-2009, 01:48 AM
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All you would need is to buy a set of 4 tire deflators like these:

http://www.4wd.com/productdetails.aspx?partID=14477

Hook them up and then let them deflate and move onto the next one. Wouldnt take more than a few minutes for all four and then when your done wheelin fill your tires back up with your OBA system.

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post #8 of 20 Old 03-02-2009, 01:50 AM Thread Starter
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yeah

but what i'm sayin is could you do that all while still sittin in your cab?

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post #9 of 20 Old 03-02-2009, 01:53 AM
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No, but thats why you bring friends Actually now that I think about it, Im pretty sure nicer cars have an electronic air system tire inflator thingy majig. So Im sure there is a way to do it. But it would probably be much more $$ than just getting out of your jeep and hooking the deflators up for 2 minutes.

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post #10 of 20 Old 03-02-2009, 01:53 AM
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look at the H1 Hummer I think they had a way of doing just that. If not look at the military version of the Hummer

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post #11 of 20 Old 03-02-2009, 01:55 AM Thread Starter
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Quote:
Originally Posted by Brads_nky_yj View Post
No, but thats why you bring friends
the only friend I've broten wheelin weighs 310lbs. He is not about to get out to deflate the tires lol but he does help keep me from flippin

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post #12 of 20 Old 03-02-2009, 01:00 PM
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Quote:
Originally Posted by plumber1 View Post
look at the H1 Hummer I think they had a way of doing just that. If not look at the military version of the Hummer
The military H1's do have this system. I've seen it set up on a trail rig, but it cost bucks.

Yeah it would be a sweet bit of kit to have that feature, but I just can't see it being done on the cheap.

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post #13 of 20 Old 03-02-2009, 01:36 PM
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This would be a cool thing to do, but it would be a huge job to be able to do something that could turn with the tire. Not sure how the Hummers do it, but it would almost have to go through the hub. Would be awesome though.
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post #14 of 20 Old 03-02-2009, 02:04 PM
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the hummers use a gear reduction box(portal box). the axle shaft come in above the cneter line of the wheel, and the air line runs through the cneter of the drive gear.
this pic should explain it a little better,


well, that didn't work, here's a link to the pic I was trying to post,
http://www.lynchhummer.com/Components/CTI.8.gif

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post #15 of 20 Old 03-02-2009, 02:30 PM
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Quote:
Originally Posted by titoheadfaceman View Post
but it would almost have to go through the hub. Would be awesome though.

you are correct sir. the hummer system uses a setup similar to a portal axle. the input from the CV shaft is actually located ABOVE the centerline of the wheel and hub and drives a stub shaft in the hub through a gear setup. the stub shaft is hollow and allows the CTIS system to pass through it and the hub to the outer side of the wheel where a swivel is placed at the center of the wheel. the swivel is what allows the hose going to the valve stem to turn with the tire when in motion. adapting this setup to the jeep wouldn't work since we don't have a gear driven hub.


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