خزان اليوريا الروسي FAW: 32 مكونات دقيقة للتحكم المتوافق في انبعاثات القطب الشمالي

ال خزان اليوريا الروسي 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 (مدافع) 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.

خزان اليوريا الروسي FAW

The Reservoir: Storage and Active Heating

The core of the system is the تجميع خزان اليوريا (الجزء لا. 1160010-76دبليو). This component is far more complex than a standard fuel tank. في خزان اليوريا الروسي FAW تصميم, the reservoir must act as a heating vessel. Urea solution (أدبلو) freezes at -11°C, a temperature frequently exceeded in Russian winters. To combat this, the tank is equipped with internal heating elements or coolant loops managed by the Urea Level and Temperature Sensor Assembly (الجزء لا. 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, such as the أنابيب إمداد اليوريا المُسخنة كهربائيًا – خزان للمضخة (الجزء لا. 1160120-66دبليو). 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. ال خزان اليوريا الروسي FAW system ensures that the fluid remains liquid from the reservoir all the way to the dosing unit.

بالإضافة إلى, the system includes the أنابيب المياه مدخل التدفئة اليوريا – المحرك إلى الملف اللولبي (الجزء لا. 1160128-55ر) و اليوريا التدفئة عودة أنابيب المياه (الجزء لا. 1160127-28الخامس). 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 خزان اليوريا الروسي FAW engineering, maximizing energy efficiency while guaranteeing emissions compliance.

The structural material of the tank is a high-density polyethylene (HDPE) or similar robust polymer, chosen for its chemical resistance to the corrosive nature of urea. لكن, plastics can become brittle in extreme cold. The specific formulation used in the خزان اليوريا الروسي 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 تجميع مضخة اليوريا (الجزء لا. 1161010-76دبليو). This precision diaphragm pump must deliver exact quantities of urea to the exhaust stream based on real-time NOx sensor data. في خزان اليوريا الروسي FAW نظام, 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 مجموعة فوهة اليوريا (الجزء لا. 1161210-76دبليو). 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 اليوريا فوهة التبريد مدخل مجموعة أنابيب المياه (الجزء لا. 1160315-61ق) و مجموعة أنابيب المياه ذات فوهة اليوريا للتبريد (الجزء لا. 1160310-61ق). This active liquid cooling is vital for the longevity of the nozzle in the خزان اليوريا الروسي FAW ecosystem.

Connecting the pump to the nozzle is the أنابيب إمداد اليوريا المُسخنة كهربائيًا – مضخة إلى فوهة (الجزء لا. 1160130-66دبليو). 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 خزان اليوريا الروسي FAW circuit usually requires replacing the entire heated line assembly, which is a costly repair.

Securement of these components is critical. ال اليوريا فوهة الأنابيب قوس (الجزء لا. 1160126-73دبليو) و قوس أنابيب مضخة اليوريا (الجزء لا. 1160126-61ق) ensure that the lines do not vibrate against the chassis. Vibration can wear through the heating element insulation, causing short circuits. The rigid mounting provided by these brackets ensures the خزان اليوريا الروسي FAW system remains intact over thousands of kilometers of rough terrain.

منطق التركيب: Straps, Liners, and Brackets

The physical security of the tank is maintained by the مجموعة حزام خزان اليوريا (الجزء لا. 1160140-66دبليو). These stainless steel straps wrap around the tank, holding it against the chassis brackets. في خزان اليوريا الروسي FAW تثبيت, metal-to-plastic contact is avoided by using the بطانة الحزام (الجزء لا. 1160134-87الخامس). This rubber interface prevents the straps from cutting into the polymer tank and provides vibration damping.

Supporting the tank from below is the بطانة سفلية لخزان اليوريا (الجزء لا. 1160117-66دبليو) و مجموعة لحام قوس خزان اليوريا (الجزء لا. 1160105-66دبليو). 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, such as the مسدس شفة الترباس (الجزء لا. Q1841445T) و تركيبة الترباس (الجزء لا. 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 خزان اليوريا الروسي FAW, as a loose tank can damage the delicate electrical and fluid connections.

Cable management is handled by the ربطة كابل بلاستيكية (الجزء لا. T67417246). There are 24 of these specified, highlighting the complexity of the wiring and plumbing harness. في خزان اليوريا الروسي FAW نظام, 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.

قائمة تفصيل المكونات

الجدول التالي يوفر كامل, exhaustive breakdown of the خزان اليوريا الروسي FAW module. يشمل الكل 32 components identified in the assembly diagrams, ensuring that every bracket, مستشعر, and bolt is accounted for during maintenance or repair.

Diagnostic Protocols for SCR Health

Inspecting the خزان اليوريا الروسي FAW requires checking for white crystalline deposits. These crystals, formed by dried urea, are the enemy of the system. If found around the تجميع مضخة اليوريا 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 أنابيب إمداد اليوريا المُسخنة كهربائيًا الموصلات. 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.

أخيراً, verify the integrity of the مجموعة حزام خزان اليوريا. 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. Ensure the بطانة الحزام is intact to prevent metal-on-plastic abrasion that could puncture the tank.

خاتمة: Compliance in the Cold

ال خزان اليوريا الروسي 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.

For fleet owners, 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.