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Question 2.

It looks like the AB Engine, compared to a conventional engine with the same engine volume burns less fuel for each working cycle. Does this make the AB Engine have a smaller power output?


As it turns out, not at all! On the contrary, an AB Engine can have significantly higher engine power output compared to traditional Otto designs with the same engine volume. Believe it or not, it can even be as high as a Miller engine and without a complicated Miller turbocharger design!


If you look at the AB Engine cycle P-V diagram, you will notice that after point V2, when the AB Engine intake valve is closed, the

minimum pressure in the chamber can be much below that of the initial gas intake pressure. In conventional engines, except Miller, it is impossible to fill chamber with gas at initial pressure. Resistance of all manifold components including filters does not allow it. Typically, the higher the RPM, the lower the gas amount coming into the chamber causing lower power output from each cycle. Because of this, a conventional engine is limited in increasing engine power output with increasing RPM! Pay attention, the AB Engine does not have this problem. AB engine can achieve very high levels of RPM with the same cycle power output, increasing Engine Power Output linearly with increasing RPM. Why? Because the AB Engine patent covers the algorithm to change V2 valve closing position depending on the fuel type as well as changing conditions of gas flow with increasing RPM!


Remember the P-V diagram? Compared to a conventional engine, we have a huge reserve of pressure difference to make gas flow as fast as this difference. With twice the difference in compression and expansion minimum pressures, after V2, only o.25 from the initial gas pressure!

The calculation is simple. Letís assume that a conventional and AB Engine have the same volume and similar resistance manifold design. It is easy to estimate the engine power output calculating the amount of gas that can be delivered through the manifold track. The more gas going through the manifold, the more power you can create from the increased fuel amounts and you can burn with larger amounts of gas. Similar manifold design can deliver the same maximum amount of gas regardless of the PRM. So we can assume that an AB Engine and a conventional engine can go through the same amount of gas and burn the same amount of fuel! But the AB Engine has a higher fuel efficiency (up to 45%) and correspondingly higher possible power output, up to 45%, just because of the fuel efficiency. There are also other reasons why an AB Engine will have more powerful output. Conventional engines susch as Otto, Diesel and Atkinson engine taking smaller and smaller amount of gas with increasing RPM make each working cycle less and less optimum! Burning fuel with smaller compression pressure, becoming less and less efficient and as a consequence, conventional engines lose power very quickly with RPM!


On the contrary, during maximum power output, the AB Engine always keeps the actual compression ratio the same with changing RPM by definition of invention! At higher RPM,AB Engine intake valve closes later and later, keeping the amount of gas the same per cycle and optimal for gas burning. Testing my personal car with a modified engine from 8 to 16 compression ratio, I surprisingly found that the car became not only more than twice as efficient, but also became significantly more powerful, gaining power noticeably up to the maximum of 5000 RPM that were limited by engine design.






Picture shows Power output of different kind of engines with the same engine volume.


Once again, what I did was step off the traditional engine design and made an engine with fuel efficiency as high as theoretically possible for this kind of internal combustion engine design. My invention works equally well for gasoline and diesel engines.




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