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Old 03-07-11, 09:05 PM
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five rotor engine

Not sure where this thread should be but her it goes. If a proper e-shaft could be made would it be possible to run 5 or more rotors for more power. I've looked into both the three and four rotor builds and thought a five rotor build would be the next experiment. If any of you have heard of some one trying it please let me know how it went. Thanks

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11-09-22, 12:22 PM
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2022 Bump to this thread. My 5 rotor coming together.
Old 03-07-11, 09:31 PM
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seriously???
Old 03-07-11, 09:32 PM
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really?
Old 03-07-11, 09:35 PM
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thread of the year 2011, I will tell this story to my grandchildren
Old 03-07-11, 09:37 PM
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New nominee in the Lounge.
Old 03-07-11, 09:49 PM
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Okay, okay, now that I have stopped laughing quitely to myself.



REALLY?




And finally, IF a proper eshaft could be made you could make a 10 rotor engine. IF, if, if.... No one has seriously tried this that I have heard of.
Old 03-07-11, 10:20 PM
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I know it's kinda a dumb question but I've never heard of it so I figured I'd ask
Old 03-08-11, 12:03 AM
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According to Jeff Bruce, a five-rotor is doable. Contact him if you're serious.
Old 03-08-11, 11:43 PM
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Anything is doable, it all boils down to how much money you have. 99.9% of the people on this forum don't have enough money to do a 3 rotor let alone a 4 or 5 rotor.
Old 03-08-11, 11:50 PM
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Originally Posted by ultimatejay
Anything is doable, it all boils down to how much money you have. 99.9% of the people on this forum don't have enough money to do a 3 rotor let alone a 4 or 5 rotor.
Correction: moste folks on this forum don't have the money to build a proper 2 rotor the way it should be. This is the main reason the rotary community is in the shape that it is, with the reputation it has. A bunch of know it all half ***'ers. Sad really...

-J
Old 03-09-11, 08:12 AM
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A bunch of buddies of my are in mechanical engineering and have free us of the campus CNC and other machines that will be made to make the e-shaft. This is more of a group project so the cost will be split.
Old 03-09-11, 06:31 PM
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If your using a auto lathe, you would have to write a program to make the proper precision cuts ->0.0005 (Astro Spec spec is 0.0001) because of the length and rotation would mean a great difference.

Now even if you have access to a full CNC shop, as do I, you would have an extremely complex program to write and to make sure the part works properly. There is no 5 rotor e-shaft to my knowledge, so the only way to make it would be by clearances and fundamentals of how the part works. Only way to see if it will work correctly is to test it.

Its mostly trial and error nothing comes out perfect the first time.
Old 03-09-11, 06:35 PM
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The guy who built the 12 rotor boat engine has posted pix of a 5 rotor shaft.....
Old 03-09-11, 07:33 PM
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John Deere developed a 10.2 liter 6 rotor engine for aviation applications and a 34.7 liter 6 rotor engine for military applications. The rotary engine program was killed before it ever went to market.

See attached.

Attached Thumbnails five rotor engine-johndeere_rotary.jpg  
Old 03-09-11, 07:55 PM
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So there was a 5 rotor e-shaft produced. Now if you can get the the program for it on autocad or the drawings you can make a program on autocad to make one =/ Machining is not as easy as people say it took me 1 and a half days to make an L Bracket from stock with a brass bushing and a M12X1.75 screw... Somethig like this will take months.
Old 03-09-11, 08:06 PM
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Hurley rotary makes a 6 rotor but its probably really expensive


http://hurleyrotary.sincordia.co.uk/...10/6-rotor.jpg
Old 03-09-11, 10:47 PM
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Thanks for all the info guys. I'll be working on this for probably the next 4 to 5 years while I'm working on my bachelors I'll try and keep ya posted
Old 03-09-11, 11:32 PM
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Originally Posted by vertfc3sna
Hurley rotary makes a 6 rotor but its probably really expensive


http://hurleyrotary.sincordia.co.uk/...10/6-rotor.jpg
That engine was reportedly a just mockup and never ran.
Old 03-10-11, 12:29 AM
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Originally Posted by JWteknix
The guy who built the 12 rotor boat engine has posted pix of a 5 rotor shaft.....
that sounds like a guy i know...
Attached Thumbnails five rotor engine-5-rotor-shaft.jpg  
Old 03-10-11, 08:36 AM
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from the man himself!!
Old 03-10-11, 11:39 AM
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Originally Posted by arghx
John Deere developed a 10.2 liter 6 rotor engine for aviation applications and a 34.7 liter 6 rotor engine for military applications. The rotary engine program was killed before it ever went to market.

See attached.
Thanks for that post.
Old 03-10-11, 03:30 PM
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I'm picking up a spare 2 rotor shaft this weekend so we can get some of the basic dimensions down. Thanks for the pics guys it's helpin us get a reference to the final thing.
Old 03-10-11, 03:51 PM
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if you (and your engineering buddies) are serious about this, there is a Swedish gentleman (can't remember his screen name) currently building a 26B engine for his old-school Volvo. he built his own shaft from scratch. to be honest, the whole car is being "built" and it boggles my mind that one man possesses his skill.

anyway, if you search, i think the thread is in the Other Rotary section - maybe you can contact him and get ideas or tips on how to go about your 5 rotor project.
Old 03-10-11, 06:38 PM
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Sweet thanks ill look him up.

Do you mean he's getting all the parts or actually hand making every piece that he can?
Old 03-10-11, 06:52 PM
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the latter .... if you're not moved by his work, check your pulse.


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