Auto Parts Injection 0445120234 0 445 120 234 Injector Pump Diesel for Engine Injector

The function, requirements and types of fuel injectors
(1) Function ：According to the characteristics of the diesel engine mixture formation, the fuel will be atomized into fine oil droplets, and will be sprayed to a specific part of the combustion chamber
(2) Requirements :Should meet the different types of combustion chambers on the requirements of the spray characteristics.
There should be a certain penetration distance and spray cone angle.
Have good atomization quality.
No dripping at the end of spraying.
(3) Type ：Hole injector - shaft needle injector
2. Hole injector
(1)Structure
1) Application: Unified combustion chamber
2) Structure - The injection nozzle consists of a needle valve and a needle valve body. Injector nozzle has a long type and short type of two structural forms. The former will lengthen the injector nozzle, needle valve guide part away from the combustion chamber to reduce the needle valve heat and deformation, so as to avoid the needle valve stuck in the needle valve body, so the long type of injector nozzles are mostly used in diesel engines with high thermal loads on the needle valve of the two taper bearing cone: bear the high pressure oil pressure in the role of the cavity, so that the needle valve produces an upward axial thrust, to overcome the preload of the pressure-regulating springs and the needle valve and the friction between the needle valve body to make the injector to achieve oil injection. Injector to realize the oil injection. Sealing cone: with the needle valve body of the sealing cone to achieve the sealing of the injector cavity.
Hole: there are one or more holes, there is a hole called single-hole injector, there are two holes called double-hole injector, there are three or more holes called multi-hole injector. The general number of holes is 1~7, the diameter of the holes is 0.2~0.5mm. the diameter of the holes should not be too small, otherwise it is not easy to process, but also easy to be blocked by carbon in use.

Translated with DeepL.com (free version)