Combustion design in other words
Fuel injector selection is a very important part of combustion development progress. Hence the created spray pattern configuration or injection speed will guaranty a uniform and homogenous flame in combustion chamber for maximum performance. Our engineering team ensures the optimum performance, fuel economy and controlled emmisions by perfectly selecting and configuring the right injectors.
High speed injectors we use, will carry out today’s demand for GDI configurations. In addition, our GDI fuel management system relies solely on how direct injection is performed especially in high revs in comparison with MPFI (multi port fuel injection). As a result, engines we design carry a very sophisticated fuel and combustion technology to ensure best fuel consumption in GDI systems along with maximum performance.
Nowadays, many engines rely on mixed fuels or switchable fuels like LPG, E10 or even CNG. When designing a Bi Fuel engine there will be more challenges to be taken cared of. To begin with, high temps, lack of fuel lubricants and corrosions cause by non purified natural gases are those that makes the injector performance and injection development more complicated.
In some cases and for special engines, there will be added injectors. Spending on what result we are looking for, we add more injectors to our designs. As a result, we achieve the desired performance with high tech engineering and fuel injection management.
Valve shape and mechanism and its movement plays a crucial role in ICE performance.
Intake Valve Bounce Back
One of the very important problems occurs in ICE is the Intake Valve Bounce Back problem. Because of that, many engines loose pressure when air is compressed at high revs. Therefore there will be loss of power as well. Our designs completely covers all major problems and assures best smooth valve train performance.
VVT and VVL
For much better performances and better engine functionality, we can develop VARIABLE VALVE TIMIG and VARIABLE VALVE LIFTING systems to the engine. These technologies are very accurate and sophisticated. They can be developed either for intake or for both intake and exhaust valves. Undoubtedly, correct technologies will push engines to its perfect performance.
What compresses the air and creates power in an engine is the piston. It creates the pressure, holds it and transfer it. Therefore when we design an engine, we put a lot of attentions to it.
Piston Head Shape
Compression ratio, perfect fuel and air flow inside combustion chamber all rely on piston shape. This is one of our very important parts of performance that we put a lot of efforts on it.
In milliseconds, when air is going to be compressed by a piston, there will be air leakage from around the piston where it contacts with cylinder. It not only lowers the compressed pressure, but also pushes more air inside engine block and creates other problems. In our engines, the blow by time is longer than the compression time hence, in high revs, engine will not loose that much of pressure. In this case, the compression will be faster than blow by time.
Flow and Compression
In combustion chamber, air flow and fuel-air compression management and lost control is a key to performance. What we do is to optimize flow and decrease compression lost all the way down to exhaust.
An example of gas flow and valve heat and stress analysis all together.
Air Flow Management
Our engines come with very high precision air flow management technologies. The amount of flow as well as its speed and turbulence effects, drastically changes the engine performance. Therefore in the development progress, we calculate total air flow system inside engine from its beginning to its end for maximum performance.
When we turbocharge an engine, we increase the volume of air which goes into the cylinder. That means more air in fraction of second goes in and more pressure will be created when piston compresses. But all that change and pressure creates many challenges which needs to be taking cared of. The latter also creates more heat than in non turbo charged engines. Hence designing fully matched turbo charger with managed thermal issues, ensures perfect torque and power at all engine speeds.
Example of cylinder simulation of 3 Valve engine-Heat and stress analysis.
In our designs we ensure that a spark which ignites the fuel is right on time and is at its perfect place. furthermore with its right amount of fuel. We will ignite a perfect homogeneous correct amount of fuel in the engine’s combustion chamber for perfect performance and optimized fuel consumption.
As the most important part of any engine design which is the combustion of fuel in internal combustion engines, the selected spray pattern of fuel and firing sequence and combustion will be simulated to achieve the prefect performance.