50:1 CR on pump gas without detonation - Ebadulaev Engine Cycle

backseatjuan · Mar 5, 2017

Apparently this subject is 8+ years old now, and companies haven't picked up the patented work, even though working prototype engines have been constructed and shown to work. There is a new engine cycle, called Ebadulaev Engine Cycle, which allows high compression ratios (50:1 on gasoline, and 60:1 on diesel) on pump gas, without engine detonation. (that's a lot of compression, since in modern gasoline engines you rarely see CR of more than 12:1)

Just to give you an idea, for the first prototype a 75 hp 1.6L engine was taken, these engines are about 8L/100 km efficient (29mpg), after conversion to ebadulaev cycle horsepower increased to 180 hp, and at the same time fuel economy increased to 4L/100km, or 58mpg. All this at 21:1 CR, instead of theoretically optimal 50:1.

Let's put these practical performance gains in terms of American engines, let's take a 5.0L coyote. 180hp from 1.6L is 112,5hp per liter, for a 5.0L engine it would mean 562,5 hp, theoretically, keep in mind that our original 1.6L four banger is highly restrictive, and it's head and intake only made 75 hp from the factory, so on practice we don't really know how many hp per liter will be with coyote engine. How about fuel efficiency? It should increase by 50%, so if it was 20 mpg originally, it should now be 40 mpg! Theoretically of course. Where have you seen tuning which increases at the same time power and fuel economy?

This is not a scam or spam, or dream, it is what it says it is. There are working prototypes.

Let me try to explain how it works. In conventional 4 cycle internal combustion engine, cylinder pressure is highest at top dead center, but the power which can be transferred to the crank shaft, is achieved at it's highest peak at only 45 degrees past top dead center. This is physics, connecting rod makes a perfect pivot at 45 degrees past TDC. However, at 45 degrees past TDC pressure in combustion cylinder is more than half less that it was at the very top. This is why 4 stroke internal combustion engines are so inefficient. Ebadulaev engine cycle raises compression ratio of the engine and uses electronics to prevent detonation, in the end you get ultimate pressure at 45 degree pivot, resulting in better engine efficiency, i.e. more power and less fuel consumption.

Here is the first prototype made by Gadgi Ebadulaev himself, the man himself is driving it.

Here is another prototype made my somebody else.

backseatjuan · Mar 6, 2017

Go **** yourself Ebadulaev Engine Cycle, scientific paper.
Go look at working prototype video if you too lazy to use google translate.

Dudes on this forum http://www.iga-motor.ru/forum/ then must be masturbating for more than 10 years, converting engines to run on this new engine cycle, experimenting, breaking things, and improving.

Bible_Belt · Mar 6, 2017

Generally speaking, increased compression is used to increase power and performance, not fuel economy. It's more of a theory than anything. In practice, the engine requires a lot of other modifications and the gains are minimal, if any.

Having said that, if the Ebadulaev guy is legit, his real invention is whatever electronics he has designed to prevent detonation, which is also the bane of boosted engines - turbo, supercharged, and nitrous-injected. If he invented something that could allow a turbo to run at much higher psi without causing problems, then every car guy in the world is going to be interested.

backseatjuan · Mar 7, 2017

What you don't understand is concept of engine efficiency. The more efficient the engine, the less energy it wastes, the more power it creates, the better it's fuel efficiency. Conventional Otto and Atkinson cycle theories do not apply to Ebadulaev cycle, theories are different.

Ignition in ebadulaev cycle at full throttle occurs 30 degrees past top dead center, and pressure is maximum at 45 degrees past top dead center. Flame is controlled to prevent detonation. These engines are suppose to be 70% efficient. Right now I am trying to get someone to translate the paper into English, it would take me several weeks to do that, and at best my English would sound monkey with all those scientific terms and language. You have to realize it, man who wrote it has a Ph.D. and read a lot of books.

Idea is to get others interested and get this thing developed.

NASCAR racing team for example, or other racing team, could gain an unfair advantage and win races by having more power and less fuel consumption.

More power and less fuel consumption come from better engine efficiency, maximum engine efficiency for Atkinson cycle is 30%. Only 30% of the energy you fuel up into your gas tank gets converted to useful moving energy. Ebadulaev cycle can achieve 70% efficiency. This is why there is more power and better fuel efficiency.

Keep in mind our first prototype engine, 1.6L which made from the factory 75 horsepower, and had a fuel efficiency of 8 liters to 100 km, or 29 miles to a gallon. Changed the cycle, didn't even make it to theoretically needed 50:1, just made it 21:1, and engine efficiency increased, resulting in 58 miles to a gallon, and 180 horsepower. That's already something to awe, this is an achievement in itself.

Skyline · Mar 7, 2017

@backseatjuan

Mose diesels are already 13:1+ to 23-1 compression ratio. Diesel have a drawback that nobody talks about. There is a good reason why most diesels have a turbo or stuffed into a small sedan. They don't make any torque much less wheel horsepower.

One of the biggest reasons why diesels get such great MPG is because they don't make any torque or power to the wheels. Those "racing" diesels eat through their diesel gas like melting butter.

This guys cycle claims to be more efficient but as far as being practical? I don't think so. Diesels are already turtles with 13:1+ compression ratios. I couldn't possibly imagine a 50:1 compression ratio. Maybe if his cycle had Spark Plugs for actual detonation, then maybe it could work but it would be far less efficient. You would be better off running 113 octane on a 12:1 compression gasoline motor for equal efficiency.

Diesel is currently king in terms of crank horsepower(for towing) and getting a reasonably high MPG regardless of vehicle weight.

NASCAR could never use something like this either. There's a reason why their fuel is 103+ octane. If they really wanted a more friendly fuel, they would use e85. But e85 requires twice as much fuel to detonate at the same level of gasoline. So a 20 gallon tank means you basically have 10.

Maybe a 50:1 compression ratio could be useful in applications that are not related to cars, but using it for cars would be impractical. You might be able to get crazy MPG but at the cost of getting a ticket for not going the speed limit.

Maybe using this for a NASA space shuttle would be a more reasonable implication.

“The 22 Rules That Turned Me From Invisible to Irresistible With Women… Starting Tonight”

50:1 CR on pump gas without detonation - Ebadulaev Engine Cycle

backseatjuan

Banned

backseatjuan

Banned

Bible_Belt

Master Don Juan

backseatjuan

Banned

Skyline

Master Don Juan