Description
Product Overview
The fuel injector is assembled at the front end of the piezoelectric electronically controlled fuel injector. The piezoelectric element drives the internal needle valve to complete multiple pre-firing, main firing, and post-firing processes. Through the fine micro-pores at the front end, a uniform and dense oil mist is formed. The electronic control unit precisely controls multiple segmented fuel injection based on the rail pressure signal. Under long-term conditions of high cabin temperature and continuous impingement of impure diesel, the fuel injection holes may get clogged, the sealing surface of the needle valve may wear out, and the clearance between the mating parts may expand. This may result in poor atomization, engine shutdown with dripping oil, imbalance in power output of each cylinder, weak engine acceleration, excessive black smoke, and a significant increase in fuel consumption. This product is an integrated precision piezoelectric fuel injector specifically designed for maintenance of common rail fuel injectors. It is factory-tested for ultra-high pressure resistance and balanced flow rate, with standardized size and hole positions. Installation and disassembly do not require grinding to match, and it is suitable for high-end passenger cars, heavy-duty long-distance trucks, and large mining engineering machinery with piezoelectric common rail fuel injectors.
Unique Core Advantages of the Single Product
Two-stage stepped and extended mirror guide rod, no unilateral wear during reciprocating motion
The rod body adopts a stepped transition of two arc segments, with the outer wall polished to a mirror finish. It is suitable for piezoelectric high-frequency and rapid opening and closing conditions. The reciprocating guidance is stable without inclined unilateral wear. The micro-micron sealing gap between the needle valve and the valve seat is maintained over a long period, preventing high-pressure fuel leakage and pressure loss, and stabilizing the common rail system pressure.
Front cone-shaped multi-micro-pore mirror fuel injection holes, multi-layer atomization combustion is sufficient
The cone-shaped guide end is combined with multiple groups of fine spray holes. The hole walls are mirror-polished without burrs. It is suitable for the piezoelectric multiple spraying structure. The high-pressure fuel is evenly divided into multiple layers of fine oil mist. The gas and oil in the cylinder are fully mixed, significantly reducing carbon deposits in the cylinder, reducing tailpipe black smoke and nitrogen oxide emissions, and improving fuel utilization efficiency.
The middle part is an integrated widened limit flange, with a widened limit step in the valve body. During assembly, it precisely fits the installation position of the piezoelectric fuel injector housing, and after being paired with a sealing gasket, multiple layers of barriers prevent high-pressure fuel leakage and avoid pressure loss, ensuring the stability of the high-frequency segmented fuel injection pressure throughout the process.
The outer wall is permanently engraved with the part number, making it easy to verify inventory without misplacing parts.
The outer side of the flange is etched with the model code F00VX50175, which is resistant to diesel soaking, wiping wear, and maintenance inventory, making matching of parts and accessories intuitive and clear, reducing model confusion and associated rework and losses.
The entire set of fuel injectors is made of high-hardness alloy steel processed as a whole, with surface nitriding hardening treatment. The sealing surface of the needle valve is wear-resistant and resistant to high-frequency impact and scratches. It has a longer service life in long-distance heavy-duty, mining environment with high dust and impure diesel, reducing frequent replacement and maintenance costs. Applicable scenarios
It is suitable for high-end diesel passenger cars, medium and heavy-duty long-distance freight trucks, large mining excavators, and heavy-duty wheeled loaders equipped with piezoelectric high-pressure common rail fuel supply systems. It is applicable to road transportation, 24-hour continuous full-load operation in mining areas, high-temperature and high-dust conditions, and frequent multiple spray operations of heavy electronically controlled diesel engine fuel injectors.
Product basic parameters
Product name: Piezoelectric Common Rail Fuel Injector Pair
Part number: F00VX50175
Main material: Integral nitrided hardened alloy steel
Structural features: Two-stage stepped elongated mirror guide rod, widened middle limit flange, conical multi-micro-hole atomization end, outer wall engraved model code
Application conditions: High-frequency multiple segment spraying, 24-hour continuous full-load operation, long-term high-temperature in the engine compartment, outdoor high-dust piezoelectric electronically controlled common rail diesel engine fuel injector
Product status: New precision piezoelectric fuel injector, factory completed with full calibration and testing of atomization effect, high-pressure sealingity, and micro-spray flow rate
Packaging: Each unit is separately packaged in a transparent hard protective tube, with plastic plugs at both ends for protection, preventing damage to the front micro-holes during transportation, supporting single-piece, multi-box, and bulk purchase in whole cases, and compatible with cross-border small package / full-case logistics.
