Вентилятор FAW J6P: Деконструкция 10 Важные детали для безупречного охлаждения двигателя

Welcome to this definitive technical deconstruction of the Вентилятор FAW J6P and fan clutch assembly. This guide provides an expert analysis of the complete fan system for the FAW Jiefang CA3250P66K2L1T1E 6×4 heavy-duty diesel dump truck. Engineered for professional technicians, менеджеры автопарка, и специалисты по запчастям, this document breaks down the entire 10-component assembly from its largest structural elements, such as the fan and clutch, to its smallest, yet critical, исправные агрегаты, including every specialized fastener, Шайтика, and flange.

The thermal management system on the CA3250P66K2L1T1E is designed for extreme, low-speed, high-load conditions. Unlike highway trucks, a dump truck operates at maximum engine power with minimal vehicle speed, resulting in zero ram air. In these scenarios, the engine’s survival is 100% dependent on the Вентилятор FAW J6P to mechanically pull thousands of cubic feet of air through the radiator, preventing catastrophic overheating.

Основной 1: The “Air Movement” Логика (The FAW J6P Fan)

Эта группа представляет мышца системы. Its logic is straightforward: convert the rotational energy delivered by the clutch into a high-volume, high-velocity column of air. This is the primary job of the Вентилятор FAW J6P.

1. Компонент: ‘Fan assy’ (1308010-14Б)
Этот (Комп 4) is the ‘Fan Assembly’ and is the most prominent component of the Вентилятор FAW J6P система. This is not a lightweight component; it is a heavy-duty, multi-blade unit, likely fabricated from high-strength, glass-reinforced composite or precision-stamped steel.

The Blade Pitch Logic is its most critical design feature. The specific angle, depth, curvature, and number of blades are not arbitrary. They are the result of extensive fluid dynamics engineering to find the “sweet spot” that maximizes airflow (measured in CFM), while simultaneously minimizing noise and the horsepower required to spin it (parasitic drag).

The Assembly Logic is a crucial service consideration. The part is designated ‘Fan assy’ (сборка), which signifies it is a single, factory-balanced, non-serviceable component. The blades are permanently affixed to a central hub, as the entire Вентилятор FAW J6P unit is dynamically balanced to extremely tight tolerances.

At high rotational speeds, even a minor imbalance—such as from a small crack or a bent blade—would induce destructive, high-frequency vibrations. These vibrations would lead to the rapid failure of the ‘Fan clutch assy’ (Комп 8) подшипники. For this critical safety reason, if any part of the fan blade is damaged, the *entire* ‘Fan assy’ (Комп 4) must be replaced.

Основной 2: The “Smart Engagement” Логика (The FAW J6P Fan Clutch)

Эта группа представляет мозг системы. Its entire purpose is to intelligently decouple the fan from the engine’s drive pulley, ensuring the fan only spins when it is absolutely needed. Это “умный” часть Вентилятор FAW J6P.

1. Компонент: ‘Fan clutch assy’ (1313010-65Д)
Этот (Комп 8) is the ‘Fan Clutch Assembly’, the most complex and vital component in this group. For a heavy-duty application like this, это Viscous Clutch, the heart of the Вентилятор FAW J6Pлогика.

The Viscous Logic is a marvel of non-electric, thermomechanical engineering. Mounted on the front of the clutch is a bi-metallic thermostatic spring. This spring is positioned directly in the airstream *after* it has passed through the radiator. Its ‘logic’ is to read the temperature of the air coming *off* the radiator, which is a direct proxy for coolant temperature.

As this air temperature rises (НАПРИМЕР., above 85°C), the spring’s metals expand at different rates, causing it to coil. This physical movement mechanically opens a small internal valve. This valve releases a specialized, high-viscosity silicone fluid from a storage reservoir into a working chamber. This chamber contains intricate, alternating plates—one set connected to the input shaft and the other to the output body (which holds the Вентилятор FAW J6P).

The fluid shear of this thick fluid between the spinning plates transfers torque. The hotter the air, the more the valve opens, the more fluid enters, and the faster the fan spins. Это Progressive Engagement Logic; it is not a simple on/off switch. Это позволяет Вентилятор FAW J6P to spin at a variable speed, precisely matching the engine’s real-time cooling demands. When the radiator air cools, the spring closes the valve, the fluid is pumped back to the reservoir, and the fan disengages.

2. Компонент: ‘Fan clutch transition flange’ (1313063-14Б)
Этот (Комп 10) is the critical Interface Logic компонент, or adapter flange. The ‘Fan clutch assy’ (Комп 8) is a specialized unit, but the engine’s pulley hub has its own standardized bolt pattern.

This ‘Transition Flange’ is the essential, high-strength steel adapter that bridges the gap. It is precisely machined to bolt flat against the engine’s pulley hub (using ‘Combination bolts’, Комп 9) and provide the exact mounting face required by the ‘Fan clutch assy’. It must transfer 100% of the drive torque and maintain perfect concentricity to prevent vibration in the Вентилятор FAW J6P сборка.

Основной 3: The “Монтаж & Застежка” Логика (Securing the FAW J6P Fan)

This final group contains all the serviceable hardware. It is the most frequently overlooked yet is absolutely critical for safety. Его логика is to manage three primary forces: high rotational torque, constant engine vibration, and thermal cycling. Using generic, non-specified hardware for a Вентилятор FAW J6P can lead to catastrophic failure, where the fan assembly can detach while the engine is running.

1. The “Fan-to-Clutch” Группа (Комп 1, 2, 3)
This sub-assembly includes: «Шестигранная гайка’ (CQ34008, Кол-во 6), «Пружинная шайба’ (Q40308, Кол-во 6), and ‘Washer’ (Q40108, Кол-во 6). Это Sandwich Logic used to mount the ‘Fan assy’ (Комп 4) onto the front of the ‘Fan clutch assy’ (Комп 8), a critical joint for the Вентилятор FAW J6P.

The Шайба (Комп 3) is a ‘flat washer,’ providing a wide, flat surface area. Its logic is to distribute the clamping load of the nut and prevent it from pulling through the fan’s composite or steel mounting holes. The Проволочная губка (Комп 2) is the most critical part. It is a high-tension lock washer providing Anti-Vibration Pre-load; it actively pushes against the nut, maintaining tension and preventing it from backing off under constant, high-frequency vibration.

2. The “Clutch-to-Flange” Группа (Комп 5, 6, 7)
В эту группу входят: ‘Stud bolt’ (CQ1201030, Кол-во 4), «Пружинная шайба’ (Q40310, Кол-во 4), and ‘Hexagon nut’ (CQ34010, Кол-во 4). Это Serviceable Mount Logic. The ‘Stud bolts’ (Комп 5) are likely threaded permanently into the ‘Fan clutch assy’ (Комп 8) сам.

This design is intentional. It allows a technician to easily ‘hang’ the heavy clutch assembly onto the studs, which protrude through the ‘Transition flange’ (Комп 10). This holds the component in place, freeing the technician’s hands to easily install the ‘Spring washers’ (Комп 6) and ‘Hexagon nuts’ (Комп 7) without having to align bolt holes while supporting the component’s full weight. This design is crucial for field serviceability for the Вентилятор FAW J6P.

3. The “Flange-to-Engine” Группа (Комп 9)
В эту группу входят: «Комбинированный болт’ (CQ1421040, Кол-во 6). Это Assembly Line Logic. A ‘combination bolt’ (or ‘combi-bolt’) is a specialized fastener that has a captive, free-spinning washer (in this case, a spring washer) pre-installed on the bolt.

This feature is crucial for both the factory and field service. It makes installation faster (one part, not two) and makes it *impossible* to forget or drop the all-important spring washer. These six bolts secure the ‘Transition flange’ (Комп 10) to the engine’s pulley hub, transferring 100% of the drive power from the belt to the entire Вентилятор FAW J6P система.

Вентилятор FAW J6P & Clutch Assembly: Полная разбивка на 10 частей

В следующей таблице представлена ​​полная, подробная разбивка всех 10 типы компонентов в Вентилятор FAW J6P and Clutch assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

Основные характеристики

Технические характеристики Вентилятор FAW J6P assembly are defined by its critical role in the engine’s thermal management, balancing robust cooling performance with intelligent, on-demand operation for fuel efficiency.