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Square-4 Engine (180° Crankshafts, 2 Stroke)

uploaded by Dzytizz 6 months ago


REUPLOADED: 4th out of 4 engines I will be uploading. Disclaimer: lots of "engine information" inbound, if you're not a fan of it just skip reading (needs unbreaking/unlimited ammo to work, just start it and it will launch of or just watch a video if you want to see all 4 engines in one place). Square engines (or U engines) are quite unique for me as I had never heard of such a type of engines. It's basically 2 inline engines strapped together. This one has a flywheel, 2 crankshafts (as power from 2 sides has to be converted into single output), 1 camshaft (actual square engines have 2 camshafts mostly but because I built it vanilla I had no space for it and it just loses it's "square" look). Square 4 were used in older motorcycles/tanks. As for example motorcycle called "Ariel Square Four" produced by Ariel between 1931 and 1959, designed by Edward Turner, who devised the Square Four engine in 1928. Aditionally square 4s mostly have 90° crankshafts (or even 45° for smoother power curve) but because I made it 180° it can be aditionally called a big-bang engine. Big bang engine is unconventional motorcycle engine designed so that most of the power strokes occur simultaneously or in close succession. This particular engine has a firing order of 1-4 and 2-3 (as it's 2 stroke). Pros: can get compact (atleast in modded Besiege). It has good torque (because of 2 pistons firing at once) and aditionally it can share parts between inline engines. Cons: inefficient (big friction loses and oil consumption because of 2 crankshafts/2 camshafts).P.S. Fact- it is water cooled and has big heatsinks as headers. Another fact- because power between engine parts was transfered with belts, other components had to be put besides (higher center of mass at one side). Yet again don't forget to check out my other engines I uploaded and don't forget the video ^^. Thanks for reading^^
posted by nate70 6 months ago
i love this idea. I've been trying to make a really powerful steam engine and its been around oh i don't know 3 months and haven't came up with anything good. i have quite a few different steam engines with different outputs but this, this is awesome. Its like an actual running engine. This is the first one i downloaded and im gonna try out your others, and again great idea.
posted by Dzytizz 6 months ago
Thanks, apreciate that^^. So far strongest steam engine (if not heavily moded) is a double action steam turbine (and sadly I don't remember who created it, might have been "oziboy"/ "roycehellion"/"The J". You can see it being used in these creations I made:
Steam Powered Car: http://besiegedownloads.com/machine/40762
3 Versions of Steamcopters : http://besiegedownloads.com/machine/41952
http://besiegedownloads.com/machine/42092
http://besiegedownloads.com/machine/42102
Worm O' Death: http://besiegedownloads.com/machine/42102
Or in Steam Tank: http://besiegedownloads.com/machine/48662
posted by Roycehellion 6 months ago
Square engines were done by me way before anyone else, then they went to ring engines (same concept, just in a circle with more cylinders)

Love seeing more engines! XD
posted by Roycehellion 6 months ago
also ring engines or "O" configurations as i prefer to call them are also similar to the real duke engines :D