Frequently Asked Questions about AB Engine Technology.

Frequently Asked Questions

Question 1. Recently we celebrated 100 years of the Otto Internal Combustion Engine Patent. Dozens of huge companies have put enormous funds into what seems like all possible aspects of engine theory, design and practice. What did they miss? What was so hidden from them that made our engine so superior to today’s conventional solutions? Answer.I want to ensure you that in high tech development there was always room for innovation.....>Full answer 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? (It was a question from a traditional engine design specialist). Answer. As it turns out, not at all! On the contrary, an AB Engine can have .....>Full answer Question 3.What is the actual fuel efficiency of your engine? How much are the fuel savings? Answer. Independent of the kind of vehicle that the AB Engine will be installed on, including Hybrids, the engine itself will be more efficient with converting burnt fuel to mechanical (or electrical) energy by 25-45%. See a detailed explanation on AB Engine efficiency in comparison to conventional engines.. click here  (PDF document) Question 4.Can your technology be applied for Diesel engines and also benefit their fuel efficiency? Answer. Yes it will definitely benefit diesel engines. In case of using diesel engines, they will be designed with increased compression/expansion ratios, compared to traditional Diesel engines, and also the AB Engine intake valve with the controller. This will limit the amount of gas so the actual compression of gas will be lowered enough to the point where diesel fuel will be self ignited. For example: if a conventional engine has compression ratio of 16-20 then the AB Engine for diesel fuel with be designed with one of 25-30; this will give increased expansion ratio though fuel efficiency while keeping the diesel burning condition the same as in a conventional diesel engine. The benefits of using the AB Engine technology with diesel fuel are beyond that of just of increased fuel efficiency. Increased design compression ratio will allow (for both gasoline and diesel fuel) simplified piston compression coils and allowed and controlled leaks that will lead to less energy loss on coil friction, this allows for Higher RPM engines with overall increased power output. Question 5.There are many alternative fuel developments. How is your technology benefiting there? Is your technology necessary in this case? Answer. Yes, absolutely! Whatever new fuels you have still need an internal combustion engine to convert its burning energy to mechanical energy. Question 6.Are there any advantages in your engine design except fuel efficiency? Answer. Yes, there are lots of them: AB Engine design can have simplified compression coils that will allow engines with higher RPM and therefore higher power output. Engine can use any kind of fuel with an optimum compression ratio. It is even possible to design an engine that will use multiple fuels simultaneously, such as gasoline and diesel fuels! AB Engine exhaust gases have 25-45% lower temperature and exhaust gas pressure could be less than atmospheric pressure. It allows a simplified design of exhaust gas collectors and dramatically simplifies and possibly avoids the exhaust resonator dampers due to low exhaust pressure. Low temperature of exhaust gases reduces environmental and thermal and carbon dioxide pollution by 20-45% per mile, keeping our planet a greener and safer place to live. Significantly lower pressure of exhaust gases makes it easier to implement new solutions for using exhaust gas temperature for additional energy. Converting exhaust gas temperature to mechanical or electrical energy was very difficult and impractical with high gas pressures and higher temperatures. Recycling this exhaust energy may increase further engine fuel efficiency by up to 5-10%! Using higher RPM engines creates opportunity for more energy efficient and less costly and compact high RPM automatic transmissions such as those using hydraulic turbines. Question 7. Is this a completely new engine design? Is it possible to modify an existing conventional engine to meet your technology requirements? What about all the engine inventions that are related to improvement of conventional engines such as Fuel Port e.t.? Are they still useful in design with your technology? Answer. AB Engine is based 100% on basic Otto gasoline and Diesel engine designs. Because of this, the majority of modern improvements can be used in an AB Engine design as well. It is not a rewired, impractical and complicated engine design; it is just the next level of significant improvements to gasoline and diesel engines. Manufacturers and vehicles developers will have no major problem in adapting AB Engine technology. Question 8.Are there any disadvantages in using AB Engine technology? Answer. The AB Engine team could not find any except that we are adding additional engine elements such as the AB Engine Intake valve with controller. Majority of modern vehicles already utilize computers to control many engine aspects. We expect that AB Engine technology will have impact on engine design and market penetration similar to the invention of the Fuel Port, but with lots more possible improving solutions as in engines as in vehicles designs Question 9.What are the practical applications to the AB Engine? Is it applicable for Electric Generators? Answer. Majority of internal combustion engines customers will benefit from using AB Engines such as Electro Generators, boats, cars, trucks, ships and motorcycles and so on. Question 10. How does your engine contribute (or compare) to the most efficient automobile design on today’s market – Hybrids? Answer. Hybrid still uses internal combustion engine to convert burning fuel energy to mechanical. Whatever the fuel efficiency of the hybrid vehicle, it is still improved by 25-45% Question 11. Sterling engine developers and manufacturers claim that their engine exclusively has the highest fuel efficiency theoretically possible. Since AB Engine also makes this claim, can you explain this disagreement? Can a Sterling engine be competitive to an AB Engine. Answer. Not in practice. The Sterling engine design is not pragmatic as a power source in cars, boats or any other widely used vehicles. They are slow to start, difficult to build with higher power output and expensive. Sterling engine promoters tried to put this engine on the car many times and unsuccessfully. Please read FAQs about all aspects of Sterling engine at --> Here On the contrary, AB Engine can be implemented immediately in almost all devices and equipment, especially where the power of Otto or Diesel Internal combustion engines is now in use. Even if an AB Engine is designed with a compression/expansion ratio of 20, this will make it the same efficiency as a Sterling engine. See link --->Here AB Engine can also be designed with compression/expansion ratios even higher than 20 (30-35), this will allow the use of high octane ratio gasoline fuels or diesel fuels with a thermo-efficiency as high as 0.6-0.7, far exceeding the 0.5 that the Sterling engine can achieve (as per the Sterling engine FAQs). Please note that even engines with 0.5 thermo-efficiency are very good engines that are not in any practical vehicles now. December 27 2011 company was granted by US. Patent #8,086,386 Download PDF file of patent here.    inShare

Question 2. AB Engine Power Output.

Question.
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?

Answer. 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. Let’s 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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