Diesel Injector Fuel Injector 23670-30420 295050-0620 Denso Injector for TOYOTA VIGO, Toyota Dyna, Toyota Hiace, Toyota Hilux

The structure of the porous gasoline injector is similar to that of the porous diesel injector. The number of injection holes of the direct injection gasoline injector is 4~12. The spray macroscopic shape of multi-hole gasoline injector is less affected by oil pressure and back pressure, and the structure is stable. The atomization quality of gasoline is closely related to the fuel injection pressure and the diameter of the nozzle hole. Both increasing the injection pressure and reducing the diameter of the nozzle hole can improve the atomization quality of the fuel.
The nozzle hole of the outward-opening gasoline injector is an annular gap, and the fuel is sprayed out from the annular gap at high speed in the form of an oil film, and forms a hollow conical spray. The spray cone angle of the outward-opening injector is large, the penetration of the oil beam is small, the contact area with the surrounding gas is large, and the atomization quality is good. Piezoelectric crystal driven outward opening gasoline injector
The opening response is fast, and multiple injections can be easily realized in one working cycle, so as to achieve the effects of fuel saving and emission reduction. In addition, the outward split injector may work under the injection pressure condition of 20MPa, which is very suitable for the spray-guided combustion system.
By comparing the above three gasoline injectors, it can be found that although the swirl injector has the best atomization quality, it is more sensitive to environmental changes and is suitable for working under a single working condition. Injectors replaced. In terms of cost, electromagnetically driven multi-hole injectors have been widely used. However, considering the development potential of direct injection technology in gasoline engines, outward-opening injectors driven by piezoelectric crystals are better for spray guidance. A combustion system in which the mixture is formed. However, due to its high production cost, it is currently only used in high-end cars.