12 rotor engine
03-17-11 | 08:25 PM
#101
I'd like to think this is the level of R&D mazda did, or is currently doing on the 16x.
You should all thank him 10 fold for letting us in on his R&D....personally.
even for the poor rotary comunity, if your parts outlasts mazda's and could make 300rwhp rotary's last 250k miles between rebuilds. you could just sell your designs to a diffrent car company($$$) and say **** mazda/the Rotards.
heres a glimpse From my time machine:
The new 2025 toyota camry. Bigyellowcat rotary engine. VS new 2025 mazda RX-X with wankle rotary Engine. Front page of Car & driver.
Good luck with the fuel economy thing. ;D
You should all thank him 10 fold for letting us in on his R&D....personally.
even for the poor rotary comunity, if your parts outlasts mazda's and could make 300rwhp rotary's last 250k miles between rebuilds. you could just sell your designs to a diffrent car company($$$) and say **** mazda/the Rotards.
heres a glimpse From my time machine:
The new 2025 toyota camry. Bigyellowcat rotary engine. VS new 2025 mazda RX-X with wankle rotary Engine. Front page of Car & driver.
Good luck with the fuel economy thing. ;D
03-17-11 | 08:36 PM
#102
Thread Starter
Full Member
Joined: Feb 2011
Posts: 101
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From: Joplin, mo
I'd like to think this is the level of R&D mazda did, or is currently doing on the 16x.
You should all thank him 10 fold for letting us in on his R&D....personally.
even for the poor rotary comunity, if your parts outlasts mazda's and could make 300rwhp rotary's last 250k miles between rebuilds. you could just sell your designs to a diffrent car company($$$) and say **** mazda/the Rotards.
heres a glimpse From my time machine:
The new 2025 toyota camry. Bigyellowcat rotary engine. VS new 2025 mazda RX-X with wankle rotary Engine. Front page of Car & driver.
Good luck with the fuel economy thing. ;D
You should all thank him 10 fold for letting us in on his R&D....personally.
even for the poor rotary comunity, if your parts outlasts mazda's and could make 300rwhp rotary's last 250k miles between rebuilds. you could just sell your designs to a diffrent car company($$$) and say **** mazda/the Rotards.
heres a glimpse From my time machine:
The new 2025 toyota camry. Bigyellowcat rotary engine. VS new 2025 mazda RX-X with wankle rotary Engine. Front page of Car & driver.
Good luck with the fuel economy thing. ;D
Last edited by Bigyellowcat; 03-17-11 at 08:50 PM.
03-18-11 | 12:18 AM
#105
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Joined: Feb 2011
Posts: 101
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From: Joplin, mo
03-18-11 | 03:54 AM
#107
RX 4BPT
Joined: Feb 2011
Posts: 293
Likes: 0
From: Huddersfield, England
I can remember reading an article on a man that had designed his own air cooled rotary engine that he was hoping to get a military deal with them for the unmanned drones/spy planes, it was only very small, smaller than a norton rotary I think and he had designed it to not use any lubrication whatso ever, he got around this by using what he would only describe as exoctic metals/materials.
To also reduce any kind of wear he was using a heavy fuel? I'm not sure what this meant but if I remember correctly he was using kerosine? So the fuel itself acted as a lubricant itself.
With the engine being air-cooled it would has no doubt got quite hot, but in flying drone it doesn't matter too much I would have though due to altitude and the speed in which it would be flying.
If I can find it over on MRC I will try post it up if bigyellowcat doesn't mind? It's just a good way of looking at engine design without using lube.
Really enjoy reading this thread BYC, keep up the updates.
Just a thought about where you mentioned you may be using aluminium for rotors when you build your own, some people have already built these and they have encountered problems of the rotors expansion causing the tips to to touch the rotor housings. Someone I've here in the uk has over come this and has now got onto his fourth generation of really light rotor but hasn't developed them any more as of late due to being as busy as always. The first set he had made he cained them to 9,500 rpm on a bad tune and not much of a run in! He uses all Mazda seals too, apart from the apex seals which he has now developed his own aswell.
To also reduce any kind of wear he was using a heavy fuel? I'm not sure what this meant but if I remember correctly he was using kerosine? So the fuel itself acted as a lubricant itself.
With the engine being air-cooled it would has no doubt got quite hot, but in flying drone it doesn't matter too much I would have though due to altitude and the speed in which it would be flying.
If I can find it over on MRC I will try post it up if bigyellowcat doesn't mind? It's just a good way of looking at engine design without using lube.
Really enjoy reading this thread BYC, keep up the updates.
Just a thought about where you mentioned you may be using aluminium for rotors when you build your own, some people have already built these and they have encountered problems of the rotors expansion causing the tips to to touch the rotor housings. Someone I've here in the uk has over come this and has now got onto his fourth generation of really light rotor but hasn't developed them any more as of late due to being as busy as always. The first set he had made he cained them to 9,500 rpm on a bad tune and not much of a run in! He uses all Mazda seals too, apart from the apex seals which he has now developed his own aswell.
03-18-11 | 12:38 PM
#108
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Joined: Feb 2011
Posts: 101
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From: Joplin, mo
03-19-11 | 06:28 AM
#110
straight 7
Joined: Sep 2003
Posts: 79
Likes: 1
From: Little Rock, AR
Lets not get too excited yet guys. From the sound of it, it doesn't appear that this engine has even fired up yet and how long it will last and run, let alone some inserts for housings. Sorry to be Donny downer but lets be realistic and get some numbers and time on this stuff before going crazy.
Blah...blah... I'm a jerk and have an opinion that will have no bearing on anything, ever.
Ask BYC how this works with Mazda rotors and stationary gears. I don't understand, I just read the thread, as for me... "Not gill-cup"... sorry, watching Monty Python at the moment.
03-19-11 | 11:04 AM
#111
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Joined: Feb 2011
Posts: 101
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From: Joplin, mo
When I said the shape is not the same, I mean it's really close but not exactly the same, mine is off dimensions not a formula like Mazda does it, we did start out with the formula but then decided to change some things in the shape, but it is really close, probably no more then .005-.007 + -- from the factory shape
03-24-11 | 08:24 PM
#112
bigyellowcat,
I have been following this thread from the start, and removal and reposting. I am a marine mobile mechanic on sport boats and yachts as well as a go fast boat guy myself. your concepts and thought are awesome, I have seen too many big power supercharged engines with a life span of 50 hours of 100 hours before rebuild.
with proper development as you have done I believe you will take a large market share away from some of the big engine builders with short life engines. Keep up the great work and I hope to see the running on a boat results soon.
I would love to go along for a ride with this engine in a large cat to see its full potential.
pm me if you would like to chat sometime, I have been around the Sterlings, gilner and mercury racing sc engines for some time, short life span and high dollar reconditioning, just makes sence to go rotary power.
Please keep us up to date on the future development and testing.
Joe C
I have been following this thread from the start, and removal and reposting. I am a marine mobile mechanic on sport boats and yachts as well as a go fast boat guy myself. your concepts and thought are awesome, I have seen too many big power supercharged engines with a life span of 50 hours of 100 hours before rebuild.
with proper development as you have done I believe you will take a large market share away from some of the big engine builders with short life engines. Keep up the great work and I hope to see the running on a boat results soon.
I would love to go along for a ride with this engine in a large cat to see its full potential.
pm me if you would like to chat sometime, I have been around the Sterlings, gilner and mercury racing sc engines for some time, short life span and high dollar reconditioning, just makes sence to go rotary power.
Please keep us up to date on the future development and testing.
Joe C
03-25-11 | 02:15 PM
#114
Thread Starter
Full Member
Joined: Feb 2011
Posts: 101
Likes: 0
From: Joplin, mo
Spent the last week spinning the rotor in these sleeves with different kinds of compounds in the engine to polish the sleeves... One of the coatings I have we put valve grinding compound and diamond slurry in it to see if it would wear away the coating and all it did was wear the case hardened tool steel tip seal down to nothing...
The r&d is half the fun of this thing, thinking about something and saying has anyone ever tried this?do some research, nope no one has tried.. ok let's try it and see what happens...... Bang, snap, bang, pop, smash, bang.... Guess that didn't work.. Let's do it again tho because that was cool to see.... Here, hold my beer while I try that again...
03-25-11 | 06:01 PM
#116
I can remember reading an article on a man that had designed his own air cooled rotary engine that he was hoping to get a military deal with them for the unmanned drones/spy planes, it was only very small, smaller than a norton rotary I think and he had designed it to not use any lubrication whatso ever, he got around this by using what he would only describe as exoctic metals/materials.
To also reduce any kind of wear he was using a heavy fuel? I'm not sure what this meant but if I remember correctly he was using kerosine? So the fuel itself acted as a lubricant itself.
With the engine being air-cooled it would has no doubt got quite hot, but in flying drone it doesn't matter too much I would have though due to altitude and the speed in which it would be flying.
If I can find it over on MRC I will try post it up if bigyellowcat doesn't mind? It's just a good way of looking at engine design without using lube.
Really enjoy reading this thread BYC, keep up the updates.
Just a thought about where you mentioned you may be using aluminium for rotors when you build your own, some people have already built these and they have encountered problems of the rotors expansion causing the tips to to touch the rotor housings. Someone I've here in the uk has over come this and has now got onto his fourth generation of really light rotor but hasn't developed them any more as of late due to being as busy as always. The first set he had made he cained them to 9,500 rpm on a bad tune and not much of a run in! He uses all Mazda seals too, apart from the apex seals which he has now developed his own aswell.
To also reduce any kind of wear he was using a heavy fuel? I'm not sure what this meant but if I remember correctly he was using kerosine? So the fuel itself acted as a lubricant itself.
With the engine being air-cooled it would has no doubt got quite hot, but in flying drone it doesn't matter too much I would have though due to altitude and the speed in which it would be flying.
If I can find it over on MRC I will try post it up if bigyellowcat doesn't mind? It's just a good way of looking at engine design without using lube.
Really enjoy reading this thread BYC, keep up the updates.
Just a thought about where you mentioned you may be using aluminium for rotors when you build your own, some people have already built these and they have encountered problems of the rotors expansion causing the tips to to touch the rotor housings. Someone I've here in the uk has over come this and has now got onto his fourth generation of really light rotor but hasn't developed them any more as of late due to being as busy as always. The first set he had made he cained them to 9,500 rpm on a bad tune and not much of a run in! He uses all Mazda seals too, apart from the apex seals which he has now developed his own aswell.
even a quick search came up with a few companies who make them:
http://www.uavenginesltd.co.uk
http://www.freedom-motors.com/
there is also smaller engines made by other manufacturers such as OS and some others who made induvidual versions:
http://www.google.com/imgres?imgurl=...ed=0CCUQ9QEwBQ
03-26-11 | 06:23 AM
#117
straight 7
Joined: Sep 2003
Posts: 79
Likes: 1
From: Little Rock, AR
Thanks... Have not been on here lately just working on the engine till 2-3 am every night...
Spent the last week spinning the rotor in these sleeves with different kinds of compounds in the engine to polish the sleeves... One of the coatings I have we put valve grinding compound and diamond slurry in it to see if it would wear away the coating and all it did was wear the case hardened tool steel tip seal down to nothing...
The r&d is half the fun of this thing, thinking about something and saying has anyone ever tried this?do some research, nope no one has tried.. ok let's try it and see what happens...... Bang, snap, bang, pop, smash, bang.... Guess that didn't work.. Let's do it again tho because that was cool to see.... Here, hold my beer while I try that again...
Spent the last week spinning the rotor in these sleeves with different kinds of compounds in the engine to polish the sleeves... One of the coatings I have we put valve grinding compound and diamond slurry in it to see if it would wear away the coating and all it did was wear the case hardened tool steel tip seal down to nothing...
The r&d is half the fun of this thing, thinking about something and saying has anyone ever tried this?do some research, nope no one has tried.. ok let's try it and see what happens...... Bang, snap, bang, pop, smash, bang.... Guess that didn't work.. Let's do it again tho because that was cool to see.... Here, hold my beer while I try that again...
Carry on and live my dream! Make me proud!
I know you can do it!
04-11-11 | 04:13 PM
#120
04-11-11 | 06:31 PM
#121
You should all thank him 10 fold for letting us in on his R&D....personally.
even for the poor rotary comunity, if your parts outlasts mazda's and could make 300rwhp rotary's last 250k miles between rebuilds. you could just sell your designs to a diffrent car company($$$) and say **** mazda/the Rotards.
fact is, you won't get that easily with a 2 rotor. you would have to go 3-4 rotor and most points will still apply and basically aren't being surpassed here either. i can easily build a decent HP reliable motor, but no one's beating down my door to build one basically due to cost with $1000 ceramics on top of the $2-2.5k to build for a naturally aspirated motor that will make your ears bleed and get maybe 10mpg.
Last edited by RotaryEvolution; 04-11-11 at 06:34 PM.
