 Paging Mueller, Bowlsby, Bleyseng and Jaroen |
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| r_towle |
 Jan 11 2006, 08:07 PM
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Custom Member  Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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Hi guys,
Through a local DOD contractor I found a few small shops that will make Berillium Diaphrams... Apparently the new fighter jets use alot of the material, so they are set up to work with it, and do small runs... So , what I need, to get a price, is CAD drawings of the diaphram, and the piece that gets pressed into the middle.. I have been told that they can do it, based upon my description. So, did anyone ever make a drawing of the diaphram...or maybe please......mike...could you... Rich |
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| Dr Evil |
Jun 28 2006, 03:50 PM
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Send me your transmission! Group: Members Posts: 23,041 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
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That is what I am reffering to in part. My MJLJ has a vaccume MPS that is the size of a quater. I was just looking over the brian schematics and it looks failrly straight forward. I just need the values that I should be shootinf for, or I will take a much longer time and rig up test connectors to a running car, yadda, yadda.
I am not saying I know it all, far from it. I'm just saying that I have not seen a reason not to consider this line of thinking. |
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| Demick |
Jun 28 2006, 10:58 PM
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Ernie made me do it! Group: Benefactors Posts: 2,312 Joined: 6-February 03 From: Pleasanton, CA Member No.: 257  |
QUOTE(Dr Evil @ Jun 28 2006, 02:50 PM)  I am not saying I know it all, far from it. I'm just saying that I have not seen a reason not to consider this line of thinking. There are a bunch of us who have thought about this. Like you point out, a pressure sensor that outputs a porportional voltage (or resistance) is easy to get. A standard MAP sensor is cheap and readily available that would do this (Megasquirt uses a MAP sensor like this). Unfortunately, to mimmic the MPS, you would need to take this signal and create an inductance value based on the amount of vacuum. A hefty inductance value at that (0 - 1.5H). I know of no voltage controlled variable inductor - especially at that kind of value. So this is where I get stuck. Not a simple problem. The other approach is not to mimmic the MPS exactly, but to understand how the ECU interprets this inductance, and create a circuit that does not output an inductance, but rather another type of signal that the MPS would be able to correctly interpret. But this goes way beyond my electrical capabilities. Demick |
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Posts in this topic
r_towle Paging Mueller Jan 11 2006, 08:07 PM
Jeff Bowlsby Cool....!
Mike, you are the man to do a drawi... Jan 11 2006, 09:41 PM Demick Jeff
If you have a diaphragm lying around that yo... Jan 11 2006, 09:51 PM jimkelly do they really need a cad drawing or can they work... Jan 11 2006, 10:07 PM r_towle cad.
if they need to measure, and make the drawing... Jan 11 2006, 10:09 PM rick 918-S Dude! http://www.914world.c... Jan 11 2006, 11:13 PM Bleyseng I have a spare decent diaphram laying around if yo... Jan 11 2006, 11:37 PM Demick Jeff is going to send me a diaphragm. After I get... Jan 12 2006, 09:44 AM Bleyseng Is it Berillium? The ones I have are copper or atl... Jan 12 2006, 09:56 AM ppickerell I can make the beryllium piece in my shop, but the... Jan 12 2006, 10:01 AM r_towle I was just going on what you guy have been saying ... Jan 12 2006, 10:27 AM Jeroen funny, I've been looking into the same thing
w... Jan 12 2006, 10:37 AM Jenny http://www.914world.com/bbs2/ht... Jan 12 2006, 10:57 AM Jenny bugger... the picture didn't take. Jan 12 2006, 11:00 AM airsix <... Jan 12 2006, 12:11 PM Demick Yep. I would guess that the appropriate callout f... Jan 12 2006, 01:22 PM r_towle ok, you sound smart...
can you arrange to have so... Jan 12 2006, 01:41 PM Demick Im not sure how to have it tested, but BeCu is the... Jan 12 2006, 06:31 PM TimT You will have to sacrifice one and send it to a Ma... Jan 12 2006, 06:41 PM Bleyseng I can send someone dead OEM ones.....got a few of ... Jan 12 2006, 07:02 PM Jeff Bowlsby If I recall, Brad anders posted a series of patent... Jan 12 2006, 08:10 PM r_towle ok..
So Demick will get a CAD drawing done...
Bo... Jan 12 2006, 09:23 PM Demick I will do the CAD models in Solidworks. I can out... Jan 12 2006, 10:19 PM r_towle Im all for Patrick doing it...
I just want a solut... Jan 12 2006, 10:21 PM Demick <... Jan 12 2006, 10:34 PM r_towle you may very well be right on the price, but I wou... Jan 12 2006, 10:40 PM SLITS Jan 13 2006, 12:37 AM Bleyseng Let's just break into Brett Inst. and steal th... Jan 13 2006, 09:17 AM
redshift 