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283:. The animation really makes it clear. I like the classic Miller DOHC configuration and finned sump. It can represent either a four valve or a two valve. Color shows pressure as well as temperature. The counterweight's function is made obvious. On the other hand, the compression ratio appears unreasonably high.
193:. Very good animation. It would be nice, if it ran a little slower. That would make it easier to grasp what is happening in which cycle. As well as a better visualization of the flow direction of the gas. If a vector-based model existed, an animation using SVG might be created from it (just an idea).
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alising). 3. The compression is definitely not infinite! But in pixels, it looks like. 4. The spark itselfes is blue - but looks different (a thin line). 5. There are pistons in a lot of shapes. Some are flat on top, some are roof-shaped (as shown here), some have other shapes. It depends on valve
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Sure thing. 1) Gasoline enters the cylinder through the valve on the right. This valve is then closed. 2) The gas is compressed until it combusts. 3) The explosion from the gas pushes the cylinder down. 4) The left valve opens, allowing the exhaust gases to escape. This valve closes, and the cycle
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Hi - I am UtzOnBike, the creator of this animation. Thanks to all supporters. But here some explanations: 1. This animation was done for the german wikipedia, where it is part of an explanation in text. 2. Of course, some arrows would help - but I do not like arrows in my animations. 3. This
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something needs to be said about how the valves are actuated by the cams. The explanation would be excessive for what could fit into the caption and a section of the article needs to be created to explain this animation.
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think that SVG or Flash would be better. SVG isn't widely supported enough, and Flash is a potential vector for viruses (which means that people using secure systems often have Flash disabled or not even installed).
316:. As David pointed out there should always be a little space left above the piston, also the existing FP is part of a series which shows the process less cluttered and with clearer illustrations. --
205:- I would much prefer it if the petrol flow went from left to right. And I've seen better animations of the same process elsewhere. The image aliasing as mentioned below is also pretty poor. -
404:. Good animation. But: needs anti-aliasing, color bands inside the cylinder are distracting and for some reason the piston flashes in stroke 2 and 4. WP 09:17, 18 February 2006 (UTC)
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Changing vote to oppose because as Janke notes, the piston does seem to show an unbelieveably high ratio of compression and that is scientifically inaccurate and misleading.--
217:. It's not bad, and illustrations like these do improve understanding. However, I find the lack of arrows indicating flow direction troublesome, as with the speed.
410:- I never thought I might oppose an animation this good (I can live with the aliasing), but the technical inaccuracy (infinite compression!!!) compels me to. --
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45:, which I discovered accidentally while working on improving a different page. I think this is simply awesome. This originated on the commons.
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animation was done with
Autodesk Inventor, a CAD programm. So it is all 3D, but the graphic is not optimized for animations (-: -->
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250:. First, it looks cool. Second, it clearly illustrates what is going on in a combustion engine. Featured picture? Why not? -
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twice as many supporters as opposers, which is what I tend to use as my guideline. This was a very close result.
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184:. Very good image, but should be inserted in articles with an explanation, similar to Toms. |
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wholeheartedly. Very good animation. Would be better if it was flash-based but still worthy.
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140:-- This is a superb animation, as good as any on wikipedia in my opinion. As mentioned by
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it needs a thorough explanation though. In addition to the information put forth by
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An explanation of what's going on, and what the colors are, would be helpful. -
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angle, compression, position of spark plug, ... Thanks to all! UtzOnBike (--
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The entire process illistrated here is explained in words in the article
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Excellent image and would be good with explanation about the 4 steps.
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2) The gas is compressed until the spark plug causes it to combust.
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447:- Is spark from the spark plug blue? What's the temperature like?
453:, I believe I've seen a better version of something like this.
126:. This should make the desccription of the animation easier.
426:, not entirely accurate and we already have an FP for this.
262:: Similar image (on the same page) is already featured.
381:- Animation is good but image aliasing is horrendous.--
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As this is a petrol engine, the description should be:
327:Uh, and it is also available as an animation!
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18:Knowledge (XXG):Featured picture candidates
369:. Aren't pistons usually flat on top? --
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555:Ended featured picture nominations
509:Promoted Image:4-Stroke-Engine.gif
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468:Beautifully executed. I do
41:An excelent animation of an
234:. Outstanding animation --
110:Or words to that effect. |
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43:internal combustion engine
329:Image:FourStrokeCycle.mpg
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345:very detailed. --
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124:Four-stroke cycle
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75:(Contribs)
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477:Agateller
392:Deglr6328
383:Deglr6328
146:TomStar81
128:TomStar81
99:TomStar81
97:repeats.
55:TomStar81
549:Category
526:Comment:
500:sikander
236:Chris 73
219:enochlau
207:Hahnchen
174:Mstroeck
151:Meniscus
84:Comment:
513:exactly
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485:Support
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359:Fir0002
343:Support
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63:Support
51:support
451:Oppose
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260:Remark
215:Oppose
203:Oppose
72:(Talk)
67:Diliff
431:roken
412:Janke
303:note?
195:Mikeo
16:<
455:gren
437:egue
416:Talk
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273:Talk
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223:talk
471:not
458:グレン
142:JPM
88:JPM
551::
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301:A
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
