Genuine Quality Common Rail Injector 16600-MB40A Diesel Injector Engine Accessories

Next, we will focus on the hole-type fuel injector.
(1) Applicable: unified combustion chamber
(2) Structure: The fuel injector is composed of a needle valve and a needle valve body. The fuel injector has two structural forms: long and short. The former lengthens the fuel injector and moves the guide part of the needle valve away from the combustion chamber to reduce the heat and deformation of the needle valve, thereby preventing the needle valve from getting stuck in the needle valve body. Therefore, the long fuel injector is mostly used in diesel engines with high heat loads. The two conical surfaces of the needle valve Pressure-bearing conical surface: bears the oil pressure in the high-pressure oil chamber, causing the needle valve to generate an upward axial thrust, overcomes the preload of the pressure regulating spring and the friction between the needle valve and the needle valve body, and enables the fuel injector to spray. Sealing conical surface: cooperates with the sealing conical surface in the needle valve body to achieve the sealing of the inner cavity of the fuel injector. Spray hole: has one or more spray holes. A single-hole fuel injector has one spray hole, a double-hole fuel injector has two spray holes, and a multi-hole fuel injector has more than three spray holes. Generally, the number of nozzles is 1 to 7, and the nozzle diameter is 0.2 to 0.5 mm. The nozzle diameter should not be too small, otherwise it will be difficult to process and easily blocked by carbon deposits during use.