Latest update Jan 26 October 2016.
added working link to the Arizon university website about Jonova engine.
I have recently been educated that “” neglecting heat transfer, combustion transients, and intake/exhaust restriction; all positive displacement engines having the same pressure bounds and same displacement will produce exactly the same power. The energy produced by a positive displacement is given by “”
This means that the combustion gases don’t care inside what kind of engine they are in, what is important is the initial and final pressure and temperatures that you are able to operate at.
The higher the initial combustion pressure value and the lower the exhausted temperature and pressure values the more powerful and efficient your engine is. regardless of geometry or architecture of engine.
So the architecture or geometry of an engine doesn’t really matter or affect how much power or efficient the engine is at extracting workable energy from the fuel.
by the way the Jonova has and will continue to fail. don’t waste your time or energy, i will try to explain why later.
The rest of this page and in fact all pages need to be scientifically reviewed by real
scientist and engineers.
Please ignore what i have written down and enjoy the links.
I don’t think the video above of that architecture will ever work, the air or combustion gases have no reference to push against, the next cycle start too early, there is no room for the gases to expand, the rate of increase in work chamber is too high.
Recently i got to do some calculations on how much torque such an engine should generate, I got 2270 N.M for a 8 cm rotor radios, as combustion pressure came to 145 bars.
I am not sure if the numbers are correct, I think they are, check the help me build my engine page.
Two Russians in their garage have an actual running JONOVA like engine. CNCed and RUNNING.
And it appears they have actually solved the problem of sealing between the main rotor and the circular value.
Watch this engine running.
click here is their website .
or click here are the advantages of the Circular engines according to Igor
back to the Jonova engine.
the animated JIF pic below is taken from another site . click to visit it
The design isn’t new , and as far as I know impossible to seal .
Also the flame is slower then piston speed, i.e there isn’t enough time for pressure to build up.
The rotary valve cannot be sealed with the main rotor no matter what system you use.
The chamber for combustion would take 50% of the pressure of the burnt gases i think.
but it is a nice demonstration of the concept to circular complete torque large expansion ratio concept.
Above picture animation of the “The Eve Rotary Engine: 1825” which is a simple Jonova LIKE motor engine .
you can click on it to go to original website which has lots of Circular engines.
also here is a quotation from the original site ” This animation follows all the contemporary drawings in showing the cutout in the little “revolving-door” as a portion of a circle. You will note that this gives a poor fit with the protruding vane of the rotor as it moves through the cut-out.
If this is correct then for part of the cycle there is a serious leakage path directly from inlet to exhaust, with dire implications for the efficiency of the engine. This is not the only engine in this gallery which shows this fault. “
This is another Revolving Valve engine click to go to website.
Here is a real life model its russian attempt
another one !!
The Jonove engine is part of a huge family of internal combustion engines.
where there is no connecting rod between the piston and the torque arm(disk), and the piston moves in a circular path or toroidal path that forms both the combustion chamber and pressure chamber.
This lack of connecting Rod leaps the thermal efficiency of the internal combustion engine system from 45% (large & heavey Compound engines for electrical power Generation not mobile) power of the Diesel Reciprocating engine to a staggering 60% for Circular engines with much less with .
The Name Taken Jonova is taken from one of the inventors of this type of circular engines named
click here to download the patent 1176990- Jonova Patent – Canadian
The Jonova Engine isn’t new design at all , there are hundreds of the “Jonova” like engine designs , it is only because of the The Arizona Arizona University’s work that it is becoming popular . click on the following pics to go to web site
You can go to the UA site with the original artical by clicking on any of these two pics.
Here is Text from one of the Jonova Websites.
“Submitted By: Russell Mitchell
Team Members: Fahad Al-Maskari, Jumaa Al-Maskari, Keith Brewer, Josh Ludeke
Spring 2003Search Words
jonova engine, Jonova engine, Jonova Motor , Jonoova engine, Joonova engine, joonoova engine, joonnoova engine.
The project led to the development of four possible project phases. Phase I involves developing an animated CAD drawing illustrating the motion of the engine while providing enhanced visualization for thos unfamiliar with the project. Phase II consists of developing a stereo lithography model for dynamic design validation. The completion of Phase III is a working metal model run on compressed air. Finally, Phase IV is a hot, fuel-burning engine. This was an optional stage, to be completed if time premitted. The current design predicts an ideal engine capable of producing nineteen horsepower at 3000 rpm. This design incorporated internal compression, which ultimately results in a more environmentally friendly engine, since less fuel is required to produce the same power. The original aim of the team was to build q hydrogen burning engine. Time, safely and sealing limitations made accomplishing this highly improbable. The hardware for the final prototype, an aluminum engine, has recently been completed due to the generous donation of machine time and material from the University Research Instrumentation Center. This final prototype includes bearings, cooling channels, spark plugs, coil, distributor, carburetor and other equipment necessary to reach a fuel-burning state. Phases I, II and III were completed that resulted in a successful design project.””
Jonova engine animation – jonova motor animation -Complete torque – full torque – Continuous torque – torque engine p- Toroidal engine – Toroidal motor- Pistonless Engine – Pistonless Motor – Camless Engine – Cam less Motor-