Radial Bi Rotary Engine

[mu38&Bg#]

How are you keeping oil out of your ports?

 

[frankydevaere]

How are you keeping oil out of your ports?

First I have to create a oil problem there. I'll try to explain.

Piston Rings :The three main functions of piston rings in internal combustion engines are:
1. Sealing the combustion chamber.
2. Supporting heat transfer from the piston to the cylinder wall.
3. Regulating motor oil consumption.
The gap in the piston ring compresses to a few thousandths of an inch when inside the cylinder head. Most automotive pistons have three rings: The top two whilst also controlling oil are primarily for compression? sealing (compression rings); the lower ring is for controlling the supply of oil to the liner which lubricates the piston skirt and the compression rings (oil control rings). It's this ring that is scraping oil in the inlet port of a two stroke. This RBR engine is just a normal working 4 stroke.

The top seal does not have a oil problem, because theoretically there isn't oil. However this is a compression ring that needs some kind of controlled lubrication for the same three reasons.

That is where the low revolution of the outer-ring takes his advantage as Bill said, The value of that speed is lower than the average piston speed of a piston ( 20 m/s ). This means less friction , less wear , less oil (or oil consumption ) than a Wankel. This compression ring is also sitting in a much cooler environment than in a hot wankel rotor or piston witch has to get rid of his internal heat.( I HOPE )

I hope that my English is understandable.

 

[frankydevaere]

Of course, now i understand...

Bill, are you the same Bill mentioned in http://www.aqpl43.dsl.pipex.com/MUSEUM/POWER/unusualICeng/cam-IC/cam-IC.htm ?

I think, my penny has dropped ( as we say in flemish ).
Acceleration is the Differential equation of velocity witch is the Differential equation of motion.
The Differential equation of the Differential equation of a perfect sinus is a sinus.
A crankshaft motion is practically a sinus. Because it isn't a perfect sinus we have a equation of second order ( two times alpha ).
The Differential equation of the Differential equation of a eight shaped lob ('cam) definitely not a sinus, probably has this acceleration of 4th order. Is there a mathematic on the forum ?

 

[bigeasy]

Hi Franky
I am frenchman and I improve everyday my english

I have seen on the russia forum a similar engine than yours






This one the power 160 Hp weight 63 kg
http://www.skyline.ua/DD-3_eng.html
Is it your design?

I would like one for my Gyrocopter!

Thanks
René

 

[frankydevaere]

Hi Franky
I am frenchman and I improve everyday my english

I have seen on the russia forum a similar engine than yours



http://www.skyline.ua/DD-3_eng.html
Is it your design?
Thanks
René

Holy s.., merde alors.
Where can i find the drivemechanism. Ou est-ce que je peux trouver l'entrainement ?
Thank you very much. Do you speak Russian ?

 

[bigeasy]

The skyline engine has seven cylinders is not even number
It seems the drive mechanism is not the same on your project you use a even number
I did not find any other information
I don't speak Russian I use GOOGLE translate
René

 

[frankydevaere]

The skyline engine has seven cylinders is not even number
It seems the drive mechanism is not the same on your project you use a even number
I did not find any other information
I don't speak Russian I use GOOGLE translate
René

Yes 7 cylinders , according specifications .

If they use a conventional radial drive mechanism, then this is the remake of the old mawen-bi-rotary engine, in my 3 inlet 3outlet configuration. Wonder why they use 2 sparks next to each other.

http://www.enginehistory.org/TM/htm/tmv6n1.htm

 

[mu38&Bg#]

Twin plugs and ignition indicate it's intended for aviation. Redundant ignition is standard in aviation.

 

[frankydevaere]

Twin plugs and ignition indicate it's intended for aviation. Redundant ignition is standard in aviation.

Of course. That's the reason. Safety first.

 

[frankydevaere]

French car maker PEUGEOT has also patents on a water cooled radial bi rotary ( 1975). Yet another drive mechanism, not a conventional radial one and not my balanced one.

http://www.google.de/patents?id=3Eg...=gbs_selected_pages&cad=3#v=onepage&q&f=false

It looks also very tiny. The cylinder rotor looks water cooled also, that are a lot of o- and v- rings. I'll stick to the air cooled. Things are difficult enough.

 

[frankydevaere]

[youtube=425,350]http://www.youtube.com/watch?v=1ZqCdNU8MlA[/youtube]

 

[Till]

Hey Franky, have a look at this:
http://floridaame.org/GalleryPages/g1m0075.htm

Edit: You've already found it in post #5