If a mysterious patented carberator was invented that got 100 m.p.g. what would be its unique function.?

Question

Pressurizing gasoline...from a mist to a vapor.
A carberator that transforms a diesel to a gasoline engine using the high compression
as a benefit somehow.
Or would it be a carberator for using a different type of fuel.
Whats your best answer, with all seriousness
please. Thanks...

Answer 1

It would have to have magical powers. Unfortunately we can't rely on magic to resolve the problems of reality.

What you are asking is not realistic.Please read on for a serious answer from an Engineer. Its a good read for a person who has little knowledge about how your car works.


Lets look at and deal with what is real. Carburetors work on vacuum pulling air past jets that allow fuel into the airstream. A certain amount of fuel needs a corresponding amount of air for "perfect" combustion when perfect combustion occurs the engine makes very little pollution and maximum power, if there is too much air damage can occur to the engine. A carburetor can be jetted (adjusted) to achieve perfect combustion but it is dependent on much more than just the carburetor.

The atmospheric conditions have as much to do with perfect jetting as the carburetor. If you didn't move your car the atmospheric conditions would remain relatively stable. If the temperature, the altitude or the relative humidity changes the amount of oxygen in the air changes and you will no longer have perfection combustion. Fuel mileage and emissions would suffer and so would horsepower. The 90 year old carburetor had to go.

Passenger cars do not use carburetors any more the last car to have one was the 1990 Subaru Justy. Engineers realized that a fuel atomization system that was infinitely adaptable to changing conditions was needed so that perfect combustion could be maintained as the car moved through changing environments. It was impossible to achieve perfect combustion in changing conditions with a carburetor.

Fuel injection was invented in the 1950's by Stuart Warner owner inventor of Borg-Warner. It was later totally re-engineered and refined to provide the answer to our problem of, "how do we keep it perfect".

The fuel injection system constantly meters the amount of fuel that is injected through small nozzles. The most modern of these inject fuel very closely to the intake valves at a high pressure. It is all monitored by a computer called an electronic control unit or ECU which updates itself as many as 30 times a second from a host of sensors.

When you step on the gas peddle many things happen. On the throttle body there is a butterfly valve that opens allowing more air thru the intake tract where a mass air sensor takes a reading on the amount of air coming in. A throttle position sensor immediately knows how hard you stepped on the peddle. The computer gets a reading on the RPMs of the engine. In the exhaust oxygen sensors take a reading on the amount of oxygen in the exhaust stream and in diesels pyrometers read exhaust temps.

To simplify the process; all of this info is fed into the ECU analyzed and the system instantly changes and adjust the amount of air and fuel to provide maximum HP and to completely combust all of the fuel. We get clean burning and as much power as the fuel available can provide.

The other part of your question requires still more magic a diesel can not be transformed into a gasoline engine with any sort of technology currently available because of the basic differences of both engines, won't go into that right now.

The REAL WORLD.

Everything that we do is governed by the laws of physics those laws can and will not be breached or changed. Basically a gallon of gasoline has a certain amount of energy in it. If perfectly atomized and burned we can still only get so much out of it that amount is 33 million calories or an equivalent amount of 115k BTU (british thermal units) equivalent to about 400 hp.

We have a certain amount of energy to work with if the hp rating of the engine goes up mileage goes down correspondingly. We can absolutely make 100 mpg cars but few people would want one because they would have limited performance and everyone want to go fast. Current technology mixes gasoline, electric and regenerative technology, we can actually recover heat energy and turn it into electric energy from kinetic energy, very high tech.

#3. law of energy, energy cannot be created nor destroyed only it's form can be changed this is little understood by most people.

I hope that explains what we scientists and engineers do for the normal people in the world.

=)

Answer 2

Carburation problems were solved with the advent of fuel injection.............You'd never get me to use and put up with all the problems that carburators presented to auto users prior to the switch to fuel injection even if they managed to develop a carb that got more mileage, which is not going to happen.
Plugged jets, leaking floats and gaskets, air-fuel adjusting screws, sticking linkages and orifice changes just to name a few problems were a way of life back then.

We've come a long way baby!

Answer 3

I don''t think the carburetor is the biggest problem. I think it is the inherent inefficiency of the arrangement of the pistons and the cycles that the engine has to go through to get out exhaust while getting the next firing compressed for its explosion.

Answer 4

No such device has ever been invented..
Its function would obviously be to provide
increased fuel economy to cars & trucks..