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 spraying it into the cylinder to complete combustion and power generation. Under long-term urban and rural long-distance freight transportation, construction site dust operations, continuous erosion by impure diesel, alternating cold and hot vibrations in the engine compartment conditions, the sealing surface of the internal valve core will wear, the nozzle spray holes will expand, and the internal sealing components will age and leak. This will result 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 of 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 this 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 machining 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, and the threads are not prone to slippage, the cylinder body is not prone to cracking or leaking, and maintains the high-pressure sealing performance of the oil circuit for a long time.
Side-mounted integrated inlet and outlet oil double interface, smooth and stable oil circuit pressure track
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 the excess fuel can 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 spray oil volume causing carbon deposits and black smoke in the cylinder.
Top-mounted integrated electromagnetic drive component， synchronous response without lag
The upper end is pre-assembled with a precise electromagnetic drive mechanism， the transmission of the electrical control signal is sensitive， the valve core's reciprocating opening and closing action has no delay， precisely controlling the single spray oil volume and the opening timing of the spray， ensuring the engine's idle speed is stable， the acceleration power is linear without jolts.
Front-end multi-level stepped limit nozzle， coaxial positioning for uniform atomization particles
The front-end multi-level stepped limit positioning structure automatically locks when installed in the cylinder head installation hole， and the internal is equipped with precise multi-micro-hole atomization spray holes. The high-pressure fuel is atomized into fine and uniform particles， the oil and gas are mixed fully， reducing the accumulation of carbon deposits in the cylinder and reducing fuel consumption.
Built-in 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 the high and low pressure oil circuits， preventing high-pressure fuel from leaking out through the assembly gap， and also preventing air from backflowing into the oil circuit after shutdown， avoiding slow oil pressure build-up when starting next time and the problem of excessive black smoke emissions from the exhaust.
The entire machine is factory-calibrated under all working conditions， and installation on the vehicle does not require secondary calibration
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 spray flow. The factory performance parameters are unified， and after assembly， it quickly restores the engine's standard power output， significantly reducing the time for oil circuit maintenance and debugging. List of Accessories
295050-1290 Complete Electronic Control Common Rail Injector Assembly 1 piece
Front end adapter sealing gasket, nozzle dust protection plug pre-installed
Top electromagnetic 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: 295050-1290 Electric Control Common Rail Injector Assembly
Part Number: 295050-1290
Matching Adaptation Number: 8-98207435-0
Main Material: Segmented composite alloy steel housing, hardened alloy steel internal valve core and atomization nozzle, alloy electromagnetic drive component, oil-resistant fluorine rubber multi-layer sealing piece
Structural Feature: Segmented composite metal cylinder, side-mounted integrated oil inlet and outlet dual oil circuit interface, top-mounted integrated electromagnetic control drive end, front multi-stage stepped limit atomization nozzle, built-in layered high and low pressure sealing structure
Application Conditions: Ultra-high pressure fuel electric control quantitative atomization injection, cabin alternating cold and hot continuous vibration, diesel medium corrosion medium-sized electric control common rail diesel engine core injection whole machine
Product Status: New and complete injector assembly, factory completed electromagnetic response, high-pressure sealingity, and atomization flow complete bench test calibration
Packaging: Independent thickened shock-proof hard tube packaging, all nozzles, oil circuit interfaces, and electromagnetic ends 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.
