The open type joint injection method was used in ancient times. In an injection system that goes from the fuel tank into the combustion chamber through a pump. The pump increases the pressure on the fuel particles in a change. These fine particles evaporate faster and produce more energy in the combustion chamber. During the injection, starting the actual combustion when the fuel pressure exceeds the pressure in the combustion chamber.
The pressure under pressure in the engine, a valve closes the passage that goes from the fuel. Closing the transition to injection process completely stop. The gas that was in earlier times, was across the room to think in the engine. Such a system is entirely dependent on diameter and length of the conveyor belt, which often leads to problems such as pre-ignition and after baking. Equip So today, cars with closed injector for the disadvantages of the open type to overcome.
In this type of hydrostatic pressure for opening and closing of the nozzle should be considered. It’s a spring in the valve opens and closes depending on the hydrostatic pressure. If the hydrostatic pressure of the valve is greater than the spring, the valve opens. Open the valve opens and the passage to the nozzle. If the value of the hydrostatic pressure is below a certain value, the valve closes and there is no supply of fuel to the combustion chamber.
Today is the small type is performed, sensors react quickly to changing inputs. It is also very sensitive to sudden acceleration and deceleration of the accelerator. This increases performance and engine performance, and provides financial savings. Because of these advantages are near commonly used nozzles today.
Types of nozzles
1). Single-Hole: This type is only a hole in the middle of the injector. The fuel into the combustion chamber through this hole. The fuel goes straight down in this type of nozzle.
2). Multi Hole: In this type there is more than a hole in the tip of the injector. The number of holes in the top of many factors, such as engine size, engine power depends. These species are now scattered today. This saves fuel performance.