Wikipedia:Featured picture candidates/Animated Fuel Injector

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[edit] Animated Fuel Injector

Original
Original
Reason
A large animated cut away diagram of a fuel injector. Its a fairly simple mechanical device in itself but without a visual aid it can be quite hard to understand a written description of how an injector actually works, especially if one has no mechanical inclination. We don't have many cut away diagrams on wikipedia, and even fewer orthographic illustrations. This diagram sets a good example to others and would go nicely on the front page. It also principaly links into the fuel injection article which has undergone massive additions over the last year bringing it up to a reasonably good standard, which is assisted by this diagram. It is a nice size (especially for an animated diagram) and quality is high.
Proposed caption
An animated cut away diagram of a typical fuel injector. Fuel injectors are used to spray controlled amounts fuel into an internal combustion engine. A solenoid is activated when fuel is intended to be delivered to the engine causing the plunger to become pulled toward the solenoid by magnetic force. This uncovers the valve opening allowing fuel to flow into the atomiser and out the spray tip as it is under pressure. A valve spring attached to the plunger returns the plunger to its original position when the solenoid is switched off. The route of fuel is shown in orange, grey/blue indicates no fuel present.

support: i am well immpressed with the work of wikipidea to have animated fuel ignition system on web . one thing to add to it is that a voice meassage with it which will explaiin what is happening to everyone. it may be done in more than one language. i think it will help student to learn easily and to me also.

Articles this image appears in
Fuel Injection, Internal Combustion Engine
Creator
WikipedianProlific; accuracy improvements by Scheinwerfermann
  • Support as nominator WikipedianProlific(Talk) 10:57, 21 August 2007 (UTC)
  • Comment. It has potential with some modifications:
    1. Y DoneRemove the title
    2. Y DoneCaption should explain what is happening in image, not compare things not shown in the image
    3. Need to have a better feel for where there is/isn't fuel at a given time.
    4. Not clear what each component does. More frames may be necessary to make this clear. — BRIAN0918 • 2007-08-21 15:16Z
Thanks for the ideas Brian0918, I've made changes and re-uploaded the original diagram based on your recommendations. Fuel is shown fairly clearly in orange, its passage through the injector is quite obvious now. The title has been removed, the caption changed to focus on the mechanism not surrounding detail. As for what each component does its fairly simple really, i mean obviously one needs to know what a solenoid (electro-magnet) is, as thats far to complicated to explain as part of this diagram. Infact a solenoid would probably take several diagrams to explain itself! Otherwise its very simple, its just a plunger which blocks a hole, the electromagnet pulls the plunger out the way and out the fuel squirts. Hence why an animated diagram is so useful as it shows just how simple these things are despite using some complicated and very carefully calculated technology.WikipedianProlific(Talk) 19:32, 21 August 2007 (UTC)
  • Comment Im trying not to sound too picky but i think if it ran just a little bit slower it would be better, other than that i'd support --Childzy ₪ Talk 19:36, 21 August 2007 (UTC)
No not too picky at all, these are the kind of comments that make a good diagram a really great feature picture so they're welcome. I've taken your advice and slowed it down to 2 seconds per frame. I agree it makes the text more readable and the diagram less challenging to follow. Thanks for the pointers (btw if your seeing the old version you may have it caches, press F5 in internet explorer to re-cache the image) WikipedianProlific(Talk) 19:40, 21 August 2007 (UTC)
  • Support that looks much much better, gives you a chance to take all the information in now. As for my voting reasons; clean, large, simple, informative and useful so support --Childzy ¤ Talk 21:28, 21 August 2007 (UTC)
  • Comment It looks wonderful, but the coloring is somewhat confusing. Why not use different colors for the plunger and fuel filter? I assume the fuel filter and plunger are not made of fuel, but what about the small tube between those two parts is. Is there a reason that you used the same color for all three items? Cacophony 02:43, 22 August 2007 (UTC)
I've updated this now to show exactly where fuel is at any one time and the colours for the fuel filter and plunger have been changed to illustrate they arent 'made of fuel'. WikipedianProlific(Talk) 15:16, 23 August 2007 (UTC)
  • Comment Support It looks me as if the section of the solenoid on top turns on before the section of the solenoid on bottom turns on, and that's not a good impression. However, it might be unavoidable; are those different frames, or is it just an optical illusion from the darker lower section of the solenoid? Also, I agree with Cacophony that it looks like the fuel filter and plunger are made of fuel. Enuja 19:37, 22 August 2007 (UTC) My objections have been addressed, and it is now very informative, and also very aesthetically pleasing. Enuja 01:36, 24 August 2007 (UTC)
I will be making changes to clarify the situation with the plunger in the next 24 hours. The top and bottom of the solenoid come on in the same frame and off in the same frame. As your eye probably reads left to right, top to bottom and the computer screen also loads each frame left to right, top to bottom your probably registering it slightly later so I'm guessing optical illusion, a filmed screen capture reveals they definately appear at exactly the same time when taking 24 frames per second. Personally I can't see the delay. WikipedianProlific(Talk) 19:59, 22 August 2007 (UTC)
Thanks for analyzing my optical illusion so completely, and I look forward to the clarified plunger! Enuja 21:54, 22 August 2007 (UTC)
  • Support The color updates are even better than I was expecting. Great job! Cacophony 16:21, 23 August 2007 (UTC)
  • weak support I really like it - just two minor suggestions away from an enthusiastic support: the "spray" of fuel is off-axis with respect to the long axis of the injector. Do they spray assymetrically? If not, it would be nice to see that fixed. Also, in the blue frame, there is some speckliness which looks like compression artifacts around the blue parts of the solenoid. Debivort 21:16, 23 August 2007 (UTC)
I can certainly change the fuel spray but the speckliness isn't on my full sized uploaded version, it seems to be an artefact of wikipedias rendering at that size. Its not uncommon on animated diagrams, perhaps on the next upload it wont be there, i'll see what I can do. WikipedianProlific(Talk) 22:03, 23 August 2007 (UTC)
You're absolutely right - so please ignore the speckle part. Debivort 23:08, 23 August 2007 (UTC)
Okay fixed the fuel, its now in the true center as opposed to being roughly drawn by eye. WikipedianProlific(Talk) 14:19, 24 August 2007 (UTC)
Well, it still looks strange to me, but if you say it's geometrically correct, I'll take your word for it. Debivort 18:33, 24 August 2007 (UTC)

Promoted Image:Injector3.gif MER-C 11:03, 28 August 2007 (UTC)