FAW J6P Термостат & Помпа: 30 Основные детали для безупречного термоконтроля

Добро пожаловать на эту экспертную деконструкцию FAW J6P Термостат and Water Pump assembly (Глава 27). Это полный “Управление температурным режимом” module for the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

Это комплекс “Логическая сборка” из 30 типы компонентов, engineered to perform one task: to maintain the engine’s perfect operating temperature (90-100° C.) under all load conditions, from a cold start to a heavy uphill pull.

The “Dual-Circuit Logic” это ключ к этому FAW J6P Термостат система. Когда двигатель холодный, the ‘Wax-type thermostat assy’ (Комп 3) is *closed*. Этот “Обход логики” forces coolant to *bypass* the main radiator and circulate only within the engine block, allowing the engine to warm up rapidly. This reduces wear, improves emissions, and provides faster cab heat. Once the coolant reaches operating temperature (НАПРИМЕР., 85° C.), the ‘Thermostat’ opens, “closing” the bypass and “opening” the main circuit, forcing 100% of the coolant to the radiator. This entire process is powered by the ‘Water pump assy’ (Комп 26), а “сердце” системы.

Это экспертное руководство является важным ресурсом для специалистов по двигателям., менеджеры автопарка, и специалисты по запчастям. We will deconstruct the entire 30-component group into its four primary “логика” система: а “Thermal Regulation Logic” (а FAW J6P Термостат and its housing), а “Fluid Circulation Logic” (the water pump and inlet pipes), а “Coolant Conditioning Logic” (the water filter and shut-off valves), и критический “Уплотнение & Plumbing Logic” (all the gaskets, трубы, and O-rings) которые соединяют FAW J6P Термостат система.

Основной 1: The “Thermal Regulation” Логика (The FAW J6P Thermostat)

Эта группа является “мозг” of the entire cooling system. Its logic is to intelligently direct the flow of coolant based on temperature.

1. Компонент: ‘Wax-type thermostat assy’ (1306010-29Д)
Этот (Комп 3) является ядром FAW J6P Термостат сборка. Список требует двоих (2) of them. Этот “Dual-Thermostat Logic” is a high-performance, fail-safe design. It provides a massive “flow-through” capacity (essential for a heavy-duty engine) and provides redundancy. If one thermostat fails in the “closed” позиция, the other can still provide enough flow to prevent an immediate, catastrophic overheat.

The “Wax Motor Logic” is how it works. This is a non-electric, self-contained unit. A small, brass “pellet” inside is filled with a special wax that is engineered to melt and expand at a precise temperature (НАПРИМЕР., 85° C.). As this wax expands, it pushes a small piston, which overcomes a spring and opens the main valve. Это “логика” that opens the path to the radiator. As the engine cools, the wax solidifies, and the spring forces the valve shut.

2. Компоненты: ‘Thermostat body’ (1306021-863) & ‘Thermostat cover’ (1306013-70А)
Этот (Комп 5 & 2) это “Housing Logic.” The ‘Body’ is the main cast-iron or aluminum manifold that bolts to the engine. It contains the “обойти” порт. The two ‘Thermostats’ (Комп 3) sit inside this body. «Обложка»’ (Комп 2) это “cap” that bolts to the body, and it contains the main “выход” port that leads to the radiator. The ‘Gasket-thermostat’ (Комп 4), из них два (2), provides the critical “статическое уплотнение” that prevents coolant from leaking *around* the closed thermostat, which would defeat the “fast warm-up” логика. Весь FAW J6P Термостат housing is a critical, high-flow junction.

Основной 2: The “Fluid Circulation” Логика (The Water Pump)

Эта группа представляет “сердце” of the cooling system. В то время как FAW J6P Термостат это “мозг,” этот компонент является “muscle.”

1. Компонент: ‘Water pump assy’ (1307010-36Д)
Этот (Комп 26) это “Centrifugal Flow Logic.” This is a belt-driven (from the FEAD system) насос. Его “логика” is to be a high-volume, relatively low-pressure pump. An internal, multi-bladed “рабочее колесо” spins at high speed. It doesn’t “suck” water in; это “slings” it outwards by centrifugal force, creating a low-pressure void at its center (а “входное отверстие”) that draws coolant in, and a high-pressure zone at its edge (а “выход”) that pushes coolant into the engine block.

The “Mechanical Seal Logic” is its most critical feature. The pump shaft (which holds the pulley on the outside and the impeller on the inside) must pass *through* the pump housing. А “механическое уплотнение” (a spring-loaded, carbon-and-ceramic ring) is what prevents high-pressure coolant from leaking out. This seal is “water-lubricated.” When this seal eventually wears out, coolant will drip from a “слезная дыра” in the bottom of the pump casting. Этот “Weep Logic” is a built-in “failsafe indicator,” telling the technician the pump must be replaced before the bearing fails completely.

2. Компонент: ‘Water pump inlet pipe assy’ (1307050-29Д)
Этот (Комп 14) это “Main Suction Logic.” This is the large-diameter pipe that connects the ‘Water pump assy’ (Комп 26) к “выход” (нижний) of the radiator, completing the main cooling circuit. It’s a critical-flow component, securely bolted on (Комп 15) to prevent any air from being sucked into the system.

Основной 3: The “Coolant Conditioning & Услуга” Логика

Эта группа “логика” это “фильтр” и “chemically treat” the coolant, a feature unique to heavy-duty systems and vital for protecting the FAW J6P Термостат и двигатель.

1. Компонент: ‘Water filter assy’ (1307020-29Д)
Этот (Комп 17) это “Conditioning Logic.” This is not just a particle filter. Его “логика” это быть “Bypass Filter” that contains “Supplemental Coolant Additives” (SCA). A small “истекать кровью” of coolant constantly flows through this filter.

The “SCA Logic” is to slowly release chemicals (like nitrites and molybdates) into the coolant. These chemicals are essential. Они “plate” the inside of the “влажный” цилиндрические лайнеры, предотвращение “cavitation”—a process where tiny, imploding steam bubbles (caused by diesel vibration) act like microscopic jackhammers, eating holes *through* the cylinder liners. This filter’s “логика” is to *prevent* this, making it a critical component for a long engine life.

2. Компонент: ‘Water filter shut-off valve’ (1307017-29Д)
Этот (Комп 24) это “Логика обслуживания.” The ‘Water filter’ (Комп 17) is a regular service item. Этот “shut-off valve” (a ball or gate valve) is installed *before* the filter. Его “логика” is to allow a technician to *stop* the flow of coolant *to the filter*, allowing it to be spun off and replaced *without* draining the entire 30-40L cooling system. This is a massive time- and cost-saving feature.

3. Компонент: ‘Heater water drain switch assy’ (1311060-50А)
Этот (Комп 6) is another “Service Logic.” It is a small drain valve located in the “heater core” схема (the plumbing that provides heat to the truck’s cab). Его “логика” is to allow a technician to drain just the heater core circuit for service, or to help bleed air from that circuit.

Основной 4: The “Plumbing & Уплотнение” Логика (Все остальные)

Эта последняя группа “логика” is to connect all the components of the FAW J6P Термостат and water pump system with a 100% герметичный, high-temperature seal.

1. The “Bypass Pipe” Логика (Компонент 9)
The ‘Water pump bypass pipe’ (Комп 9) это “Cold Engine Circuit.” Когда FAW J6P Термостат (Комп 3) is *closed*, this is the pipe that re-routes the “горячий” coolant from the engine block *directly* back to the “всасывание” side of the ‘Water pump’ (Комп 26). Этот “Обход логики” is what allows the coolant to circulate (and the cab heater to work) *before* the engine is at operating temperature.

2. The “Interface” Логика (Компоненты 18, 20)
The ‘Intermediate connecting pipe’ (Комп 18) and ‘Single-pipe intermediate connecting pipe’ (Комп 20) являются “Логика интерфейса” компоненты. These are rigid, pre-formed pipes that connect the ‘Thermostat body’ (Комп 5) to the cylinder head or other parts of the block. They are used in tight spaces where a flexible rubber hose would kink, melt, or rub through.

3. The “Уплотнение” Логика (Прокладки & Уплотнительные кольца)
This system uses three types of seals. The ‘Gaskets’ (Комп 4, 8) являются “Static Seals” for flat, non-moving surfaces (как FAW J6P Термостат крышка). The ‘O-rings’ (Комп 10, 19, 25) являются “Динамические уплотнения” used to seal the ends of the slip-fit “intermediate pipes” (Комп 9, 18, 20), allowing them to expand and contract with heat. Окончательно, the ‘Copper gaskets’ (Комп 12) являются “Crush Washers” for the ‘Hollow bolts’ (Комп 13), creating a high-pressure, metal-on-metal seal.

FAW J6P Термостат & Water Pump Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 30 типы компонентов в FAW J6P Термостат and Water Pump assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

Основные характеристики

Технические характеристики FAW J6P Термостат and Water Pump assembly are defined by its function as the complete thermal management system for the engine.