Recent comments in /f/gifs

amazn_azn t1_iwgj8wo wrote

This is moreso "what an engine looks like while running" than what actually makes the engine work. The thermodynamic cycles are how engines generate mechanical force from the thermal energy released in the combustion of gasoline molecules.

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Aggrador t1_iwgil6q wrote

Reply to comment by johnson_united in How an engine works. by ooMEAToo

It is just a diagram after all, not a precision-built machine, so I don’t think we can expect much in terms of ultra-realism. There are other things wrong with it, too, like no valve overlap, and the firing order has a noticeable lag between cylinders 1 and 3, makes for a very unbalanced engine.

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Aggrador t1_iwghsgt wrote

Reply to comment by evilleppy87 in How an engine works. by ooMEAToo

Doesn’t look wrong to me. Red exhaust valve opens as the piston rises and blue opens when the piston drops on each of the cylinders. I will say though, that this does look like an awfully unbalanced engine between cylinders 1 and 3 having so much time between the firing orders, as oppose to 1 to 2 or 2 to 3.

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v78 OP t1_iwgf0gw wrote

Hi all! This pixel art animation is 320x200px with 40 hand drawn frames. I drew the squares one by one! I doubled the resolution for viewing purposes. I hope it brightens your day <3

If you like this type of art and want to support me, please feel free to check my other works:

Steam WallPaper Engine collection | Patreon | Foundation | Twitter | Tumblr | Facebook | Instagram

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Wuntoothrie t1_iwgeesg wrote

Reply to comment by SassyMoron in How an engine works. by ooMEAToo

Sort of. What this doesn't show is the synchronized explosions that force those pistons down. That little flash of light is the spark that ignites the gasses (air and gasoline, in many cases). The explosion is contained in the cylinder and pushes the piston and the arm down rotating the cam shaft.

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Drunken-samurai t1_iwge1ej wrote

Reply to comment by evilleppy87 in How an engine works. by ooMEAToo

Bringing up variability, there is VVT (variable valve timing) which takes advantage of this in real time to use different valve timings at different RPM's to provide more efficiency or power.

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Wayed96 t1_iwgckmt wrote

>Blue valve opens, gas gets injected, piston is pushed back up, gas compresses, spark, boom

"Gas" is not injected. Air is sucked in because the piston moves down. Fuel could be injected either directly or just before the blue valve.

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cptstupendous t1_iwga5py wrote

At some point in the future, intimate knowledge about how these engines work will become as scarce as the knowledge of old programming languages like FORTRAN and COBOL.

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