Description
Product Overview
The fuel metering unit is assembled in the fuel inlet channel of the high-pressure fuel pump, precisely controlling the fuel volume entering the plunger chamber through the opening degree of the electromagnetic valve core. The electronic control unit dynamically adjusts the fuel supply based on the rail pressure signal, maintaining stable pipeline oil pressure. Under long-term conditions of high cabin temperature and impure diesel washing, the valve core may get stuck, the seal may age, and the performance of the electromagnetic coil may decline. This may result in fuel supply imbalance, fluctuating rail pressure, delayed cold start, decline in engine power, and increased fuel consumption. This complete integrated metering valve assembly is factory-tested for high-pressure sealing, flow linearity, and aging at various temperatures, with uniform installation dimensions and compatibility for various diesel common rail high-pressure fuel pumps for maintenance and replacement.
Unique core advantages of this product
The side-mounted integrated flange base ensures no displacement during vehicle vibration
The metal bushing installation ears on the valve body side are integrally formed, and are screwed and locked to fit the fuel pump housing. The valve core opening and closing stroke remains constant, and the fuel supply flow control has no signal drift under long-term vibration and movement of the vehicle.
The green thick fluorine rubber sealing ring provides multiple layers of protection against fuel leakage and pressure relief
The outflow connector is equipped with a green oil-resistant and high-pressure sealing ring that can withstand long-term corrosion from diesel and engine oil, and is suitable for alternating hot and cold cabin environments. The compression rebound performance is stable, preventing oil leakage through assembly gaps, and ensuring stable rail pressure output.
The integral forged alloy pressure-bearing shell resists high-pressure impact and does not deform
The middle section of the metal valve body is integrally forged, providing sufficient structural strength. It can withstand continuous high-pressure fuel impact without bulging or deforming. The valve core and valve sleeve have a micron-level precise fit, reducing single-sided wear and jamming faults caused by impurities.
The lockable waterproof electronic control plug is resistant to electromagnetic interference and provides stable signals
The black injection molded wiring connector with a snap-lock structure is filled with waterproof and oil-resistant rubber cores, isolating cabin moisture, oil, and electromagnetic interference from the wiring. During vehicle vibration, the pins do not experience false connections, and the flow control signal transmission is continuous without distortion.
The multi-level precision flow valve core provides linear and smooth oil quantity adjustment
The internal segmented stepped flow valve core responds smoothly in all operating conditions. The fuel supply adjustment is smooth under idle, heavy load, and high-speed conditions, reducing the difference in fuel injection volume among multiple cylinders, improving idle operation stability, and addressing exhaust color differences and acceleration无力 issues. Applicable scenarios
This product is suitable for light and medium-duty freight diesel vehicles, agricultural tractors, wheeled loaders, and high-power fixed diesel generators equipped with electronic common rail fuel supply systems. It is applicable for urban freight transportation, 24-hour full-load operation in mining sites and construction areas, as well as small and medium-sized as well as heavy-duty electronic diesel engines with electric control for high-pressure fuel pumps in hot and dusty environments.
Product Basic Parameters
Product Name: Fuel Metering Unit / Fuel Inlet Metering Electromagnetic Valve
Part Number: 0928400702
Main Material: Rust-proof alloy pressure-bearing valve body, fluororubber high-pressure sealing gasket, oil-resistant and high-temperature engineering plastic electronic control connector, high-precision electromagnetic flow valve core
Structural Feature: Single-sided flange installation base, green ring-shaped high-pressure sealing rubber ring, integrated metal valve body, snap-fit waterproof electronic control plug
Application Conditions: Continuous light, medium, and heavy loads, engine compartment alternating between cold and hot, outdoor high-dust electronic common rail diesel engine high-pressure fuel pump
Product Status: New and complete metering valve assembly, factory completed flow calibration, high-pressure sealingity, high and low-temperature aging comprehensive testing
Packaging: Independent shock-proof small cardboard box packaging, oil circuit connectors and electronic control plugs are separately protected and isolated to prevent valve cores and plug pins from being damaged due to transportation compression, supports single-piece, multi-box batch purchases, and is compatible with cross-border small package logistics.
