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i love hamsters

Hi poops

That sure is a beautiful place up there in Baraboo Wisconsin. We were just there. Hard to film threw a fence. But you can't help that. Thanks for sharing, and thumbs up to ya.

I really like the concept. The simplistic of the engine and the interface of the generator is an engineering marvel.

Is a prototype avail for testing ? Would like to see this developed.

Brilliant Graphics

How to cool this engine?

you have some good concepts/ideas there, i think i have some developments that could help you make it better.

should i correct their engineer by saying that all modern engines actually have a point where the intake and the exhaust valve are open at the same time to actually flush the hot exhaust gas. it even more common with turbo compression and is a reason why direct injection is more efficient but that a nice concept i really like unconventional engines

I want it in a car. Like yesterday. This is five years old plz put it in a damn car.

I like the concept but why not kzfaq.info/get/bejne/Y9l3npyCnMilcnU.html or kzfaq.info/get/bejne/pr6faqaHq6-Zg58.html in 2018?

So it's a two stroke.. I have my doubts about the purge air system. I like to see a working, non cgi example

I'm "off grid" (by location not choice), and would love to replace my old diesel generator with one of these. What an ingenious concept. Plus I like the name. Lol

so this looks like it just generates more power per rpm. this seams like it would generate a lot of force against the cam bearing surfaces. most of the other things she says sound like double talk. very large head space from the spark plug valve arrangement. modern engines use turbos and direct fuel injection to increase "pre-compression" as described. Opposed engine cylinder layout already exist. Low rpm, opposed cylinder designs are already in use with fuel oil large engines in ships today. If you generating electricity why would that not be what you are looking for. this video is from 2013, it is 2018 now, so what has happened to this design.

Interesting video, though Cam engines aren't new (Check out the Michel cam engine from the 1920s). Looks like it might be a good contender for range extenders in BEVs, if it really is very power dense as claimed. I wonder how it would compare with the one in the BMW i3 REX or the GM Volt/Ampera. I'm guessing from the dates of the video and website that it hasn't got off the ground, which would be a shame. It would be nice to see a proper prototype.

The cam is too large.

Very Nice Brother! With testing and finding the weak links and then even a little redesign. Don't give up on this! It looks good!

interesting design. checking their website. in the 5 years since the animation, nothing. not even a single practice prototype...

small engine based on this design + electric motors = High mileage cars :D .. This will only works great if we can convert >60% to electrical energy.

Le Vilain Petit CanardVery interesting. Indeed. Make it stirling and i buy a dozen. Not joking ! All the heat in the center, plus an external cooling.... it been designed to be stirling guys. Take out The ignition system, the gaz injection, the exhaust and the ventilation and you can save more energy. Imagine you have this engine and could chose the energy you use. Natural, shale or bio gaz, wood, solar, . switching from one to the other easily. Solar by day, and wood chips by night/rain. natural gaz in the cities, bio ethanol in your car. All this with the same engine. It could be tomorrow’s energy. And much more simple to built, and way cheaper !

Has it made it past the engineering stage to production or even demonstrator model? Would like to see it in operation.

I wanna see a working model, Purdy animation though. I see premature wear in bearings. Love concept

Cute cartoon! Looks like a modified Wankel engine. Wear will be a problem. Make a real one, let's all see how well it works.

It SOUNDS good, but will it perform in reality as well as it does in theory? Only extensive testing can determine if it will be practical. There are several basic issues: 1. Fuel efficiency. If it does not achieve the claimed improvement, it will flop. 2. Weight. It LOOKS like it will be heavier than a standard engine, but working models will find out for sure. 3. Reliability & durability. Will it take the kind of beating that vehicles give their engines?

Very nice engine/generator intergration design. Here are some constructive thoughts for a fully integrated, operational system. Momentarily reversing the electrical power can turn the generator into an engine starter, which will further simplify the system design. Depending on the operational enviornment(s), carboration, cooling and lubrication sophistication will vary. Adjustable fuel supply is needed to regulate engine/generator speed. Adjustable control of the air/fuel ratio will be necessary for applications/locations where the barometric pressure fluctuates from a nominal setting (e.g. operating at high altitudes associated with mountain locations and flying). At the bottom of the cylinder stroke, atmospheric pressure will not be sufficent to get purge-air into each cylinder. A turbocharger and manifold can be used to pressurize and distribute purge-air into each cylinder, so as to rapidly and reliably evacuate/cool the cylinders. This will affect the air/fuel combustion mixture. Integration of other components/assemblies (e.g. fuel injector timing, exhaust valve timing, throttle body adaptation, oil distribution and sump, liquid cooling, speed/load govenor, as well as fuel mixture regulation) can capitalize on modern automobile engine technology. No need to re-invent the wheel for existing supplementry systems. However, successful integration of engine and supplementry systems is necessary for operational reliability and stability of generator RPM, which will result in the reduction of electrical power regulation controls on the output. Best wishes!

nice design !! did Russell made it??? would like to see that at work! real life!

some well placed springs and magnets may make this even better , cam track wear is going to be a issue tho . I think that may be manageable with a little work .

Is this a 2-cycle?

Interesting design. It is essentially a 2-stroke engine with ported air admission and would also work in a Diesel combustion cycle thus saving complicated spark plugs and improving thermal efficiency. When comparing the cylinder size with the cams (with rollers, I presume) these looks very tiny and will probably bend and/or wear rapidly under load. How is the piston rings, cams and piston guides lubricated? How is the side load from the cams to the piston guides absorbed? How is air forced into the cylinder liner? (you mention a fan; how about using a turbocharger?). The air channels look way too narrow. The air cooling of the cyl.liners looks interesting. But it will heat up the scavenge air (thus reducing density) and will only be effective for a very small-bore machine. You must have calculated a P-V diagram and thus have an idea of the Carnot efficiency. What is your estimated compression and firing pressure? How are exhaust valves controlled (by cams or electronically?). Lots of questions, I understand; get it build and show us a test firing! Good luck and best regards

all of your rotational torque is generated from roller cams on one side of your cam track... in other words the engine relys on that contact force on the roller cams and the track... wear looks like an issue. .. interesting design though. Make it!! and Test it. Its the only way to know if youve got a winner.

Yall are dope i would love to see you guys take off good luck!

So what stops the exhaust from entering the air inlets? Reed valves? Turbo?

Good design, however... I don't think 4 pistons or less would give this engine good start characteristics. I think it would work best with 5 or more. Also, there will be major issue of ware and tear for those pins pushing on the drive cam.

Hi., this engine has loads of errors in this design. Exhaust seems reasonless in it. THe motion of the red valve is not consistet and logical with eshausting, To open for exhaust is fine but you really have to push it out for real life efficiency. There will be loads of burned gas remaining in it. And there is no compression phases? This is a low efficency but interesting engine... that you use those forces to genrate torque is amazing idea.

aw man i wish we had a timeline for a working model prototype, i wanna stick one of these in my project electric vehicle ;)

I think vibrarion free is bogus Theres points in the cycle where no pistons are doing work So its gonna vibrate at each stutter and lose efficiency

The Idea is ok, however there is a lot to be sorted out with regard Engine Wear at critical points of load. The bearing in the cam track is one as well as the cam track itself. Then the side loads created by the cam track will also cause wear on what is effectively the Cross Head bearing and working surface. I am also curious as to lubrication of sliding surface components as I do not recall hearing mention of this in you Video. Good luck with your project, John. Australia.

About as crazy as you can get. Huge and heavy rotating masses. Complex machined shapes. Huge heat concentration. Very low displacement versus engine volume. Very low compression. Needs a supercharger. Very expensive large ball bearings. Het is concentrated just where the cooling space is the smallest. All the blue areas are wasted space. The generator is also loopy, with no clear closed magnetic circuit. Pretty pictures but nothing else.

I want one when where and how much?

can't wait to see a prototype. be interesting to see how it sounds.. maybe like a v twin?

This looks neat. The designer obviously made a great effort and came up with the design. Hope it will be commercialized soon.

reading the comments and your responses, I feel the need to applaud not only your design of the Eng/Gen, but also your patience in responding to reviewers. Well done on both counts

Brilliant design! I am skeptical of any startup's claim of low cost, made before the engine is built, especially if years go by without even a working model. I hope you succeed! These would be perfect for extending range on electric cars!

The problem with engine concepts like this is the engines are all too often prohibitively expensive. Their superior designs end up being economically impractical, despite their superior design. Fuel is cheaper than using an expensive new engine design, unfortunately.

When will be available at TESCO?

Where to buy this?

How do you control valve timing with a fixed intake inlets ?

As an engineer who worked on and designed engines... this engine actually sounds good, especially the part about balancing vibrations and torque transition. However the only issue I have is what stops the exhaust gases flowing into the inlet opening since the hot gases are under pressure and will flow everywhere

It would be neat to see a prototype of this, one the more interesting designs I have seen.