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Recent content by frankydevaere

  1. frankydevaere

    Radial Bi Rotary Balanced Piston Combustion Engine

    hmm... the Russians, what a similarity http://www.skyline.ua/DD-3_eng.html
  2. frankydevaere

    Radial Bi Rotary Balanced Piston Combustion Engine

    Hale has 4 : http://www.youtube.com/watch?v=6JaJ6T0T1sk
  3. frankydevaere

    Radial Bi Rotary Balanced Piston Combustion Engine

    Do you mean mine or Jerry Hale's ? This one has 12 ignitions per rotorrevolution ,Wankel has 3, Hale has 1.
  4. frankydevaere

    Radial Bi Rotary Balanced Piston Combustion Engine

    those seals or rings , not plates ( apex-seals ) as in a Wankel if you look carefully, you see 12 ignitions per rotor revolution. A wankel has 3 ignitions. This rotor is therefore rotating 4 times slower slower and the seal-rings do not cause "devils marks " as in a wankel-rotorhouse. They are...
  5. frankydevaere

    Radial Bi Rotary Balanced Piston Combustion Engine

    Radial Bi Rotary Balanced Piston Combustion Engine http://www.wix.com/devaere/radial-bi-rotary http://www.youtube.com/watch?v=1ZqCdNU8MlA
  6. frankydevaere

    Pistons replace the valves?

    I'm interested in a fourtstroke with no valves at all, but by means of gates.
  7. frankydevaere

    Toroidal Opposed Piston Engine

    I saw a forummember with the name HiPerTEC Is this name ( identical written ) related to High Performance Toroidal Engine Concept : http://www.hdcreates.com/websites/ATS/pages/HiPerTEC.html
  8. frankydevaere

    Toroidal Opposed Piston Engine

    Are the Russians going toroidal ? Billonaire Mikhail Prokhorov has made an investment that involves a total outlay of 150 million euros. It seems to be a hybryd toroidal , similar like the omega-engine from Bradshow...
  9. frankydevaere

    Toroidal Opposed Piston Engine

    @ Greglocock : LOL, i never met your sister in law.
  10. frankydevaere

    Toroidal Opposed Piston Engine

    http://www.ecomotors.com/prof-peter-hofbauer
  11. frankydevaere

    Toroidal Opposed Piston Engine

    yes you right izzmus, blow by in the exhaust chamber is not so crital, blow by in the compression is. Cooling is not difficult but very, very omportant. Further : It seems that Ford also is playing around with a free opposed piston engine. They also lubricate their pistonrings with a injected...
  12. frankydevaere

    Toroidal Opposed Piston Engine

    I know Greglock , suppose he putted his drawing in 1920 on the internet, ... For your information, I have a small other prototype running in my motorhome working as a generator .
  13. frankydevaere

    Toroidal Opposed Piston Engine

    Wankelrotor can be considered as a free piston, there is no side thrust. But this rotor is continuously heating up. Machining a trochoidehouse within tolerances is not really conventional. What about honing, lapping. ? The Wankelhouse has an unequal thermal expansion. Its continously heated on...
  14. frankydevaere

    Toroidal Opposed Piston Engine

    absolutely right about de Wankel apex seals. The space to mount a seal between the compressionchambre and expansionchambre is awful limited. Blow by, however, is not so critical, you simply loose power . Blowby in a conventional is worse, it's towards the crankshaft. The biggest problem in a...
  15. frankydevaere

    Toroidal Opposed Piston Engine

    cilinderoffset : yes that's the way to reduce side-friction during expansion and alows a bigger ( but more accepatble ) side-friction during compression. Talking about motorbikes ( driving a Yamaha Fazer myself ), this dutch dieselbike is also free-piston. Love it ...

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