Description
Product Overview
The electronically controlled common rail injector receives ultra-high pressure fuel from the common rail pipe and relies on an external wiring harness electromechanical component to receive electrical control unit signals, 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 continuous heavy-duty operation, continuous impingement of impure diesel, frequent alternation of high and low temperatures and vibration conditions, the sealing surface of the internal valve core will wear, the nozzle spray holes will deform, and the internal sealing components will age and leak, which will cause imbalance in the fuel supply flow of a single cylinder, continuous pressure loss in the high-pressure oil circuit, significant reduction in engine power, and increased black smoke emissions from the exhaust. This product is standardized in installation dimensions, oil circuit interface specifications, and electromechanical signal parameters. During maintenance, the entire set of injectors can be directly replaced, eliminating the need for separate disassembly and debugging of internal components, and is suitable for heavy-duty trucks, large-scale construction machinery, and large-power diesel generator sets for maintenance and repair.
Core Advantages of the Single Product
Thickened segmented alloy steel cylinder body, high strength, pressure resistance, and resistance to deformation, not prone to oil leakage
The cylinder body is precisely machined by CNC from thickened alloy steel, with surface passivation for rust prevention, suitable for installation on the heavy engine cylinder head structure, capable of enduring continuous impact from ultra-high pressure fuel for a long time, resisting corrosion from diesel medium and significant temperature changes, the cylinder body is not prone to cracking, the threads are not prone to slippage, and can maintain stable high-pressure oil circuit sealing performance over a long period.
Side-mounted integrated inlet and outlet return oil interface, smooth oil flow and stable rail pressure
Integrated inlet and outlet return oil pipe interfaces on the side, without joint gaps, reducing the resistance of high-pressure fuel flow, excess fuel quickly returns and discharges to relieve pressure, stabilizing the common rail system oil pressure, improving the phenomenon of cylinder carbon deposition and black smoke emissions caused by excessive single-time fuel injection.
Exterior wiring harness type precise electromechanical drive component, stable signal transmission and rapid response
The upper end is equipped with an external connection line electromechanical actuator, stable electrical control signal transmission, timely valve core opening and closing action response, precise control of fuel injection volume and timing, ensuring smooth idle operation of the engine, continuous smooth power output under heavy-duty conditions.
Multi-level stepped limit nozzle at the front end, precise positioning and uniform atomization
The stepped limit structure at the front end, automatically aligns and clamps during assembly without deviation; combined with multiple micro-hole precision spray holes, the high-pressure fuel is atomized finely and uniformly, ensuring adequate oil-gas mixture, reducing carbon deposition in the cylinder, and optimizing fuel consumption levels under heavy-duty conditions.
Multi-layer oil-resistant sealing structure, bidirectional anti-leakage and anti-airflow backflow
The cylinder body is equipped with multiple specifications of fluororesin oil-resistant sealing rings, layering to isolate high and low pressure oil circuits, preventing high-pressure fuel from leaking outward; at the same time, preventing air backflow into the oil circuit after shutdown, solving the problem of starting oil circuit intake and slow oil pump pressure building up.
Complete itemized factory testing for the entire machine, no need for secondary adjustment during installation
Each injector independently completes electromagnetic response, high-pressure pressure retention, atomization effect, and injection flow detection and calibration, with unified performance parameters. After assembly, it quickly restores the original power performance of the engine, significantly reducing the time for oil circuit maintenance and debugging.
List of Accessories
295050-0490 Complete Electronic Common Rail Injector Assembly 1 piece
Pre-installed dust-proof protection cover for the front nozzle
Pre-installed dust-proof plugs for each port
Application Scenarios
Suitable for heavy-duty freight vehicles, large-scale wheeled construction machinery, and fixed large-power diesel generator sets equipped with high-pressure common rail fuel supply systems, suitable for long-distance heavy-duty transportation, high-intensity continuous operation on construction sites, harsh outdoor conditions, and poor oil quality situations for overall replacement and maintenance of the injector of heavy-duty electronically controlled diesel engines.
Product Basic Parameters
Product Name: 295050-0490 Electronic Common Rail Injector Assembly
Part Number: 295050-0490
Main Material: Thickened segmented alloy steel cylinder body, hardened alloy steel valve core and atomization nozzle, alloy electromechanical component, oil-resistant multi-layer fluororesin seals Structural features: Thickened segmented metal cylinder, side-mounted integrated oil return inlet and outlet dual interfaces, external connection line integrated electromagnetic drive end, front-end multi-level limitation atomizing nozzle, built-in layered high and low-pressure sealing structure
Applicable working conditions: Ultra-high pressure fuel electronic control injection, long-term continuous load vibration, wide temperature difference harsh working conditions for heavy-duty electronic control common rail diesel engine fuel injection assembly
Product status: Brand-new complete fuel injector assembly, factory completed electromagnetic response, high-pressure sealingity, atomization flow set of bench test calibration and inspection
Packaging: Independent thickened shock-proof tube protection packaging, all nozzle, oil path ports, electromagnetic connectors are equipped with dust-proof plugs, buffering protection to avoid transportation impact damage to internal precision parts; supports single-piece retail, bulk purchase in cartons, suitable for cross-border logistics transportation.
