Description
Product Overview
The injector is installed on the engine cylinder head, receiving precise electrical control signals to spray high-pressure fuel accurately, achieving stratified combustion. Under long-term mining conditions of 24-hour full-load operation, thousands of bar of high-pressure impact, and impurities from diesel washing, the valve core seal wears out, the sealing gasket ages, and the electromagnetic valve fails. This will result in single-cylinder lack of ignition, significant power loss, severe black smoke in the exhaust, and dilution of engine oil. This product is an integrated finished injector, with standardized dimensions for the outer diameter of installation, the plug pins, and the sealing points. The entire machine is completed with full-condition flow calibration at the factory, allowing for direct installation and repair for immediate vehicle operation, and is suitable for large excavators, heavy-duty loaders, and large-power diesel generators for oil injection maintenance and upkeep.
Core advantages of the single-piece kit
Segmentally thickened alloy steel valve body, resistant to high pressure and deformation
Multi-stage combined quenched and tempered alloy steel casing, with an outer wall thickened for reinforcement, capable of withstanding long-term ultra-high oil pressure impact, and less likely to deform or crack under cabin high-temperature vibration, preventing high-pressure oil leakage from the valve body.
Dual needle waterproof electronic control plug, stable signal transmission and oxidation resistance
Dual metal pins as conductive terminals, with built-in gold-plated contacts, an outer layer of insulating waterproof sheath, preventing erosion by diesel and water vapor, with no delay in electronic control signal transmission, eliminating injection lag and intermittent oil supply faults.
Red-colored high-pressure fluororubber sealing ring in the middle, isolating the high-temperature gas in the combustion chamber from circulating into the oil circuit
Pre-installed red high-temperature resistant fluororubber O-ring, compatible with the sealing position of the cylinder head installation hole, isolating the high-temperature gas in the combustion chamber from leaking into the oil circuit, while blocking the outward leakage of high-pressure fuel, stabilizing the common rail working oil pressure.
Extended precision multi-hole injector nozzle at the front end, ensuring full atomization under heavy loads
Extended mirror-guided piston column combined with multiple symmetrical fine spray holes, allowing for uniform and fine atomization of high-flow high-pressure fuel, matching large-power combustion chambers, ensuring complete combustion, reducing carbon buildup, and lowering black smoke and fuel consumption.
Integrated one-piece electromagnetic control valve, with precise and controllable injection timing
Internal integration of a precision electromagnetic flow valve core, capable of precisely completing pre-injection, main injection, and segmented injection, alleviating engine detonation, optimizing idle stability, and providing linear and without-jolt power output for heavy-load climbing.
Flow calibration at the factory, no need for on-site debugging after replacement
The finished product is uniformly calibrated for injection flow, opening pressure, and atomization effect, with high consistency per unit, allowing for quick restoration of the original factory power performance after replacement, significantly reducing maintenance and debugging time. Applicable scenarios
This product is suitable for large-scale mining excavators with high-pressure common rail fuel supply system, heavy-duty wheeled loaders, and fixed power diesel generators in mines. It is applicable for the replacement of diesel engine fuel injection components in heavy construction machinery operating in a diesel environment with 24-hour uninterrupted full-load operation, continuous high-temperature, and high-dust impurity conditions.
Product Basic Parameters
Product Name: 370-7280 Electronic Control Common Rail Injector Assembly
Part Number: 370-7280
Main Material: Tempered hardened alloy steel valve body, fluorine rubber sealing ring, waterproof and insulated electronic control component
Structural Feature: Segmented alloy valve body, tail double-pin electronic control plug, middle red high-pressure sealing O-ring, front extended fuel injector nozzle, built-in electromagnetic control valve core
Application Conditions: Continuous high-pressure injection, 24-hour full-load operation, high-temperature vibration, impurity diesel environment for high-power electronic control common rail diesel engines
Product Status: New and complete fuel injector assembly, factory completed with full set of calibration and testing for atomization performance, high-pressure sealingity, electronic control response, and injection flow
Packaging: Single independent shock-proof hard cardboard box packaging. Dust protection plugs are equipped at both ends of the fuel injector nozzle and the electronic control plug to prevent scratches and damages to the precise fuel injection holes and conductive pins during transportation. Supports single-piece retail and bulk purchase in cases, and is compatible with cross-border small package / case logistics.
