Combustion design in other words
Fuel injector selection is a very important part of engine development progress. Hence the created spray pattern configuration or injection speed will guaranty a uniform and homogenous flame in the combustion chamber for maximum performance. Our engineering team ensures optimum performance, fuel economy, and controlled emissions by perfectly selecting and configuring the right injectors.
The 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, the engines we design carry a very sophisticated fuel and combustion technology to ensure the 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 care of. To begin with, high temps, lack of fuel lubricants, and corrosions caused by non purified natural gases are those that make 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 play a crucial role in ICE performance.
Intake Valve Bounce Back
One of the very important problems that occur in ICE is the Intake Valve Bounce Back problem. Because of that, many engines lose pressure when air is compressed at high revs. Therefore there will be a loss of power as well. Our designs completely cover all major problems and assure the 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 their perfect performance.
What compresses the air and creates power in an engine is the piston. It creates the pressure, holds it, and transfers it. Therefore when we design an engine, we put a lot of attention into it.
Piston Head Shape
Compression ratio, perfect fuel, and airflow inside the combustion chamber all rely on piston shape. This is one of our very important parts of the performance that we put a lot of effort into 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 the cylinder. It not only lowers the compressed pressure but also pushes more air inside the engine block and creates other problems. In our engines, the blow-by time is longer than the compression time hence, in high revs, the engine will not lose that much pressure. In this case, the compression will be faster than a blow by time.
Flow and Compression
In the combustion chamber, airflow, fuel-air compression management, and lost control is 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 altogether.
Air Flow Management
Our engines come with very high-precision airflow management technologies. The amount of flow, as well as its speed and turbulence, effects drastically change the engine performance. Therefore in the engine development progress, we calculate the total airflow system inside the engine from its beginning to its end for maximum performance.
When we turbocharge an engine, we increase the volume of air that goes into the cylinder. That means more air in a fraction of a second goes in and more pressure will be created when the piston compresses. But all that change and pressure creates many challenges which need to be taken care of. The latter also creates more heat than in non-turbo-charged engines. Hence designing a fully matched turbocharger 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 that 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 perfect performance.