Injector Flowbench

[EssEss]

I have a project I did last summer that I used to flow/clean some ebay injectors .. I also did it to understand some of the low end characteristics of different types of injectors (ev1/siemens/ev6/denso etc ...) it DOES NOT follow the SAE spec to the letter of the law. the upper (90+%dc) does not get mapped. If you recreate the project, you'll understand why.

here's a shot of some of the typical data I got:

mail me if you want the .xls

.. I'll put it up on github and post the link soon. I want it ruthlessly cut-up ... my next-gen of this will use fred's toolset on the ta board to do a real SAE spec test. more doc's/info/pics to follow -- I still need to leap the hurdle of getting the right verbage in the code and putting it up on github.

My motivation to get off my ass and put something into the wild ? I'd love to see this start here and grow beyond me through contribution. There are so many loose ends, but the base is there and it works.

[Fred]

Great! Once you post the link, I'll fork it and have a play. Perhaps I can give you some git branch/merge/fork practice on this :-)

Fred.

[EssEss]

might be harder than that

it's based on a PIC18 and I used sourceboost with their novortos. this started out as a pet project to see what kind of pain is involved (or justification) for runnning an rtos on something highly resource constrained. so it'll be pretty useless for most unless you already have that toolset.

[Fred]

Ahh well, I'll wait for your port then.

[EssEss]

here's a few photos with comments:


I cut a plexiglass 'slug' to mount my pump to in the bottom of a coffee can .. it's press fit because my test fluid eats all sealants that I have on hand. I use plain old mineral spirits and I 'color' it with a little marvel mystery oil.



I just squirt a certain duration and it's tallied up and then I simply weigh the result



my electronics setup assembled from various junk boards and parts I have laying around. I can switch in various drivers as I need to.

this is the specific board that I targeted: http://olimex.com/dev/pic-mt-usb.html
and this is the compiler I used: http://www.sourceboost.com/

my code is on a usb stick @ work, so I get it up tomorrow sometime.

[jharvey]

I'm jealous your fuel tank / pump looks much better built than my keg mod. Are those parts you hand made, or do you know a supplier?

[EssEss]

hand made .. gotta use my tools for something.

[EssEss]

[url]git://github.com/EssEss/PICInjDriver.git[/url]

[Fred]

Might pay to link it like this :

http://github.com/EssEss/PICInjDriver

Code: Select all

git://github.com/EssEss/PICInjDriver.git

The git link isn't really clickable and the other one exposes the git link when you click it.

Fred.

[EssEss]

I've been working on v2 .. just noticed this in my usb stack code:

Code: Select all

 *      This software is supplied "AS IS" without any warranties, express,
 *      implied or statutory, including but not limited to the implied
 *      warranties of fitness for purpose, satisfactory quality and
 *      noninfringement. Keil extends you a royalty-free right to reproduce
 *      and distribute executable files created using this software for use
 *      on NXP Semiconductors LPC family microcontroller devices only. Nothing
 *      else gives you the right to use this software.

how do you interpret this ? I think I can put this up into github with the rest of my new code.

it doesn't say that I CAN'T post the source .. I think the last line is an attempt at that, but its worded horribly and misses the mark.