Description
Product Overview
The electronically controlled common rail injector receives the ultra-high pressure fuel from the common rail pipe and relies on the top electromagnetic component to receive the electrical control unit's signal, driving the internal precision valve core to open and close rapidly, splitting the high-pressure fuel into fine oil mist and injecting it into the cylinder to complete combustion and power generation. Under long-term urban and rural long-distance freight transportation, construction dust operations, continuous erosion by impure diesel, alternating cold and hot vibrations in the engine compartment conditions, the internal valve core sealing surface may wear, the nozzle spray holes may expand, and the internal sealing components may age and leak, resulting in imbalance in the fuel supply flow of a single cylinder, rapid pressure relief in the high-pressure oil circuit, attenuation of engine power output, and excessive black smoke emissions from the exhaust. This product has standardized processing for installation thread specifications, oil circuit interface dimensions, and electromagnetic signal matching parameters. During maintenance, the entire set of injectors can be directly replaced, eliminating the cumbersome process of disassembling and debugging the internal precision components. It is suitable for medium-sized heavy-duty freight trucks, small and medium-sized wheeled loaders, small and medium-sized mining excavators, and fixed diesel generator sets for maintenance.
Core Advantages of the Single Product
Segmented composite alloy steel integrated cylinder body, double-layer rust-proof and pressure-resistant without deformation or oil leakage
The cylinder body is segmented and formed by CNC turning of alloy steel, with a black anodized surface and a combined protective treatment of metal polishing. It can withstand thousands of bar of high-pressure fuel impact for a long time, resist diesel medium corrosion, and withstand the temperature difference between the engine compartment. The threads are not prone to slippage, and the cylinder body is not prone to cracking or leaking. It maintains the high-pressure sealing performance of the oil circuit for a long time.
Side-mounted integrated inlet and outlet oil dual interfaces, smooth and stable oil circuit pressure
The side is integrated with an一体成型 inlet and return oil dual pipeline interface， without splicing gaps， reducing the resistance of high-pressure fuel flow， and allowing excess fuel to quickly return and relieve pressure， stabilizing the base oil pressure of the common rail system， eliminating the problem of excessive oil pressure at idle speed and excessive single-shot fuel injection volume causing carbon deposits and black smoke in the cylinder.
Exterior independent wiring connector combined with electromagnetic drive component， synchronous response without lag in electrical control signals
The upper end is pre-assembled with the precise electromagnetic drive mechanism and the external wiring connector， ensuring a stable connection without loosening， sensitive transmission of electrical control signals， no delay in the reciprocating opening and closing action of the valve core， precise control of the single-shot fuel injection volume and the opening timing of the injection， ensuring smooth idle speed and linear acceleration power without jolts.
Front multi-level stepped limit nozzle， coaxial positioning for uniform atomization particles
The front multi-level stepped limit positioning structure automatically locks when installed in the cylinder head mounting hole， and is not prone to offset. The internal is equipped with precise multi-micro-hole atomization nozzles， with fine and uniform high-pressure fuel atomization particles， thorough oil-gas mixture， reducing carbon deposits in the cylinder and fuel consumption.
Internal multi-layer oil-resistant sealing structure， bidirectional prevention of leakage and air backflow
The cylinder body is equipped with multiple specifications of oil-resistant fluorine rubber sealing gaskets， layering to isolate high and low-pressure oil circuits， preventing high-pressure fuel from leaking out through assembly gaps， and preventing air backflow into the oil circuit after shutdown， avoiding slow oil pump pressure building up during the next start.
Whole machine factory calibration under all working conditions， no need for secondary adjustment when installed
The entire injector is independently tested on the machine for electromagnetic response speed， high-pressure sealing and pressure retention duration， uniformity of atomization， and standard fuel injection flow. The factory performance parameters are unified， and after assembly， it quickly restores the standard power output of the engine， significantly reducing the time for oil circuit maintenance and debugging.
Accessory List
295050-0790 Complete electronically controlled common rail injector assembly 1 piece
Front adapter sealing gasket and nozzle dust protection plug pre-installed
Wiring end dust protection cover pre-installed Applicable scenarios
This product is suitable for medium-sized heavy-duty freight trucks with high-pressure common rail fuel supply systems, small and medium-sized wheeled loaders, small and medium-sized mining excavators, and medium-sized fixed diesel generators. It is applicable for long-distance urban and rural freight transportation, moderate dust operations at construction sites, heavy-duty farming in fields, and medium-sized electric control common rail diesel engines operating in corrosive environments with impurities in diesel fuel.
Product Basic Parameters
Product Name: 295050-0790 Electric Control Common Rail Injector Assembly
Part Number: 295050-0790
Main Material: Segmented composite alloy steel housing, hardened alloy steel internal valve core and atomizing nozzle, alloy electromagnetic drive component, oil-resistant fluorine rubber multi-layer sealing ring
Structural Feature: Segmented composite metal cylinder, side-mounted integrated oil inlet and outlet dual oil circuit interface, external independent wiring plug, top integrated electromagnetic control drive end, front multi-stage stepped limit atomizing nozzle, built-in layered high and low pressure sealing structure
Application Conditions: Ultra-high pressure fuel electric control quantitative atomization injection, cabin alternating between cold and hot continuous vibration, medium-sized electric control common rail diesel engine core injection system corrosion by diesel medium
Product Status: New and complete injector assembly, factory completed with electromagnetic response, high-pressure sealingity, and atomization flow full bench calibration and testing
Packaging: Independent thickened shockproof hard tube packaging, all nozzles, oil circuit interfaces, and wiring plugs are equipped with dust-proof protective plugs, foam buffer protection to avoid transportation bumps and scratches of internal precision components, supports single-piece retail, bulk purchase in cases, and is compatible with cross-border small package logistics.
