Tanque de urea ruso FAW: 32 Componentes de precisión para un control de emisiones ártico conforme

El Tanque de urea ruso FAW module is the environmental cornerstone of the CA3250P66K24L1TE5Z heavy-duty dump truck. Operating in the freezing expanses of the Russian Federation requires more than just a reservoir; it demands a sophisticated thermal management system to prevent Diesel Exhaust Fluid (DEF) from crystallizing at -11°C. This comprehensive guide dissects the electrically heated piping, the precision dosing pump, and the rugged mounting architecture that ensures this SCR (Selective Catalytic Reduction) system functions flawlessly in sub-zero conditions.

Tanque de urea ruso FAW

El embalse: Storage and Active Heating

El núcleo del sistema es el Conjunto de tanque de urea (Número de pieza. 1160010-76W.). This component is far more complex than a standard fuel tank. En el Tanque de urea ruso FAW diseño, the reservoir must act as a heating vessel. Urea solution (AdBlue) freezes at -11°C, a temperature frequently exceeded in Russian winters. Para combatir esto, the tank is equipped with internal heating elements or coolant loops managed by the Urea Level and Temperature Sensor Assembly (Número de pieza. 3602525-76W-C00). This sensor provides critical feedback to the ECU, triggering the thawing cycle before the engine is allowed to produce high torque.

The fluid transport out of the tank is managed by a series of specialized lines, como el Tubería de suministro de urea calentada eléctricamente – Tanque a bomba (Número de pieza. 1160120-66W.). Unlike standard fuel lines, these pipes feature integrated resistive heating wires wrapped around the core. This active heating prevents the urea from freezing in the narrow lines during operation, a common failure point in non-arctic spec trucks. El Tanque de urea ruso FAW system ensures that the fluid remains liquid from the reservoir all the way to the dosing unit.

Además, the system includes the Tubería de agua de entrada de calefacción de urea – Motor a solenoide (Número de pieza. 1160128-55R) y el Tubería de agua de retorno de calefacción de urea (Número de pieza. 1160127-28V). These components utilize the engine’s waste heat to maintain the tank temperature during long hauls. This dual-heating strategy—electrical for startup and coolant for running—is a hallmark of the Tanque de urea ruso FAW ingeniería, maximizing energy efficiency while guaranteeing emissions compliance.

The structural material of the tank is a high-density polyethylene (PEAD) or similar robust polymer, chosen for its chemical resistance to the corrosive nature of urea. Sin embargo, plastics can become brittle in extreme cold. The specific formulation used in the Tanque de urea ruso FAW is impact-modified to withstand the shocks and vibrations of off-road dump truck operations at -40°C without cracking.

Precision Injection: Pump and Nozzle Dynamics

Pressurizing the fluid is the responsibility of the Conjunto de bomba de urea (Número de pieza. 1161010-76W.). This precision diaphragm pump must deliver exact quantities of urea to the exhaust stream based on real-time NOx sensor data. En el Tanque de urea ruso FAW sistema, the pump is also capable of reversing flow. When the engine is turned off, the pump purges the lines, sucking the urea back into the tank to prevent it from freezing and expanding in the delicate nozzle or lines.

The atomization of the fluid occurs at the Conjunto de boquilla de urea (Número de pieza. 1161210-76W.). This injector sits directly in the hot exhaust stream. To prevent the nozzle itself from overheating or clogging with crystallized urea, it is cooled by the Conjunto de tubería de agua de entrada de enfriamiento de boquilla de urea (Número de pieza. 1160315-61S) y el Conjunto de tubería de agua de retorno de enfriamiento de boquilla de urea (Número de pieza. 1160310-61S). This active liquid cooling is vital for the longevity of the nozzle in the Tanque de urea ruso FAW ecosistema.

Connecting the pump to the nozzle is the Tubería de suministro de urea calentada eléctricamente – Bomba a boquilla (Número de pieza. 1160130-66W.). Like the suction side, this pressure line is electrically heated. The connectors on these lines are specialized quick-connect fittings that must be handled with care. A damaged connector in the Tanque de urea ruso FAW circuit usually requires replacing the entire heated line assembly, which is a costly repair.

Securement of these components is critical. El Soporte de tubería para boquilla de urea (Número de pieza. 1160126-73W.) y el Soporte de tubería de bomba de urea (Número de pieza. 1160126-61S) ensure that the lines do not vibrate against the chassis. Vibration can wear through the heating element insulation, causando cortocircuitos. The rigid mounting provided by these brackets ensures the Tanque de urea ruso FAW system remains intact over thousands of kilometers of rough terrain.

Lógica de montaje: Correas, Liners, and Brackets

The physical security of the tank is maintained by the Conjunto de correa para tanque de urea (Número de pieza. 1160140-66W.). These stainless steel straps wrap around the tank, holding it against the chassis brackets. En el Tanque de urea ruso FAW instalación, metal-to-plastic contact is avoided by using the Forro de correa (Número de pieza. 1160134-87V). This rubber interface prevents the straps from cutting into the polymer tank and provides vibration damping.

Supporting the tank from below is the Revestimiento inferior del tanque de urea (Número de pieza. 1160117-66W.) y el Conjunto de soldadura de soporte de tanque de urea (Número de pieza. 1160105-66W.). This heavy-duty framework is bolted to the truck frame. Given the harsh corrosive environment of Russian roads, where salts are used liberally, these brackets are typically coated with advanced anti-corrosion treatments to prevent structural failure.

The fasteners used, como el Perno de brida hexagonal (Número de pieza. Q1841445T) y el Perno combinado (Número de pieza. CQ1461025), are high-tensile units. The flange head design distributes the clamping load, ensuring the brackets do not shift. Checking the torque on these bolts is a standard maintenance procedure for the Tanque de urea ruso FAW, as a loose tank can damage the delicate electrical and fluid connections.

La gestión de cables está a cargo del Brida de plástico para cables (Número de pieza. T67417246). Hay 24 of these specified, highlighting the complexity of the wiring and plumbing harness. En el Tanque de urea ruso FAW sistema, proper routing and securing of the heated lines are essential to prevent chafing and electrical shorts, which could disable the heating system and freeze the unit.

Lista de desglose de componentes

La siguiente tabla proporciona la información completa, exhaustive breakdown of the Tanque de urea ruso FAW módulo. incluye todo 32 components identified in the assembly diagrams, asegurando que cada soporte, sensor, and bolt is accounted for during maintenance or repair.

Diagnostic Protocols for SCR Health

inspeccionando el Tanque de urea ruso FAW requires checking for white crystalline deposits. These crystals, formed by dried urea, are the enemy of the system. If found around the Conjunto de bomba de urea or hose connections, they indicate a leak. In cold weather, even a small leak can freeze and expand, cracking the expensive pump housing. Cleaning these deposits with warm water is the first step in diagnosis.

Test the heating circuits regularly. With the ignition on and the engine cold, check the resistance of the Tubería de suministro de urea calentada eléctricamente conectores. An open circuit means the heater wire is broken, and the pipe must be replaced. A frozen pipe will trigger a “Reductant Pressure Too Low” fault code and derate the engine.

Finalmente, verificar la integridad del Conjunto de correa para tanque de urea. Road salt accumulation under the straps can cause them to rot. If a strap snaps, the tank can shift, stressing the rigid coolant lines and causing a coolant leak. Asegurar el Forro de correa is intact to prevent metal-on-plastic abrasion that could puncture the tank.

Conclusión: Compliance in the Cold

El Tanque de urea ruso FAW is a sophisticated chemical storage and delivery system designed to operate where other systems fail. Its integrated heating logic and robust material selection ensure that emissions compliance is maintained even in the depths of the Russian winter.

Para propietarios de flotas, the cost of neglecting this system is high. A frozen urea tank leads to engine power loss and potential fines. By using genuine FAW replacement parts, including the specific heated lines and cold-weather sensors, you protect your investment and ensure your vehicles remain productive and compliant, no matter the temperature.