- Ville de ChangChun, Province du Jilin, Chine
par 
Bienvenue dans ce guide technique critique sur le Compresseur de climatisation FAW (Partie no. 8103020-36D). This component is the heart of the Heating, Ventilation, et climatisation (CVC) système pour le FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur semi-remorque diesel.
The function of the Compresseur de climatisation FAW is to provide driver comfort and safety (defrosting) by pumping refrigerant through the A/C loop. It is a high-load, belt-driven pump that converts low-pressure refrigerant gas into a high-pressure, high-temperature gas.
Ce guide détaillé est une ressource essentielle pour les techniciens professionnels, gestionnaires de flotte, et spécialistes des pièces détachées. Nous déconstruirons l'ensemble Compresseur de climatisation FAW assembly and its 3 serviceable mounting components, including the main compressor unit and its critical fasteners, to ensure precise service and diagnostics.
The main component is the ‘A/C Compressor Assembly’ (8103020-36D). C'est le complet Compresseur de climatisation FAW unité. C'est un véhicule robuste, belt-driven pump that is mounted to a bracket on the engine. It is powered by the engine’s main serpentine belt.
The function of the Compresseur de climatisation FAW is to serve as the “cœur” of the A/C loop. It draws in low-pressure, low-temperature refrigerant gas (like R134a or R1234yf) from the evaporator (the component inside the truck’s dashboard). It then compresses this gas, which dramatically increases its pressure and temperature. This high-pressure, hot gas is then pushed out of the compressor and into the condenser (the component in front of the radiator).
A heavy-duty Compresseur de climatisation FAW like this one is typically a “swash plate” ou “wobble plate” conception. This means a set of pistons (généralement 5 ou 7) are housed inside a cylinder block. The engine’s pulley spins an angled plate (the swash plate), which pushes these pistons back and forth, sucking in the gas and then forcing it out at high pressure. This design is robust and capable of moving a large volume of refrigerant. Le Compresseur de climatisation FAW is a precision-engineered, high-load component.
A key sub-component of the Compresseur de climatisation FAW (8103020-36D) is its electromagnetic clutch. The compressor’s pulley is always spinning, as it is connected to the engine’s main serpentine belt. Cependant, the compressor itself should only be pumping when the driver requests A/C.
The clutch is the switch that engages and disengages the pulley from the compressor’s internal swash plate. When the driver presses the A/C button, a 24-volt signal is sent to an electromagnet located inside the pulley assembly. This magnet creates a strong magnetic field.
This magnetic field pulls a “clutch plate,” which is mounted to the compressor’s input shaft, hard against the spinning pulley. The friction between the plate and the pulley “écluses” them together. This transfers the engine’s rotation to the compressor’s internal pistons, and the pumping begins. The loud “cliquez” heard when the A/C is turned on is the sound of this clutch plate engaging.
This clutch is a primary failure point for any Compresseur de climatisation FAW. The clutch can wear out and begin to slip, or the electromagnet coil can fail (un “circuit ouvert”). This is why a common “pas de climatisation” diagnostic is to check if the 24V signal is reaching the Compresseur de climatisation FAW, and if the clutch is engaging when it does.
Many modern systems, including this Compresseur de climatisation FAW, may be of a “variable displacement” conception. This is a more advanced logic than simple “clutch cycling.”
In an older “clutch cycling” système, the compressor is either 100% ON or 100% OFF. The clutch cycles on and off every few minutes to maintain the correct temperature, which can be inefficient and cause a noticeable “jerk” as the engine load changes.
A variable displacement Compresseur de climatisation FAW is much smarter. The clutch engages *once* and stays engaged. The compressor’s output is then controlled by an internal electronic solenoid that changes the *angle* of the swash plate. A steep angle causes a long piston stroke, fournir 100% output on a hot day. A shallow angle causes a very short stroke, providing perhaps only 10% output to simply maintain the temperature.
This variable logic makes the Compresseur de climatisation FAW far more efficient, as it only draws as much power from the engine as is absolutely necessary. This saves fuel and provides a much more stable and comfortable cabin temperature. A failure of this internal control solenoid is another common diagnostic point for the Compresseur de climatisation FAW.
La liste des pièces pour le Compresseur de climatisation FAW assembly is simple and focuses on the mounting hardware. The ‘Bolt – for fastening AC generator’ (3701327-36D) is a classic example of “parts-bin engineering.” Although the name refers to the AC Generator (alternateur), this part is a high-tensile stud that is also used for mounting the Compresseur de climatisation FAW.
This system uses two of these studs (3701327-36D). These studs are threaded into the main A/C compressor mounting bracket, which is bolted to the engine. The body of the Compresseur de climatisation FAW is then slid onto these two studs.
The ‘Hex flange nut’ (T32010), dont il y en a deux, is then used to secure the Compresseur de climatisation FAW to the studs. Ce “stud and nut” system is superior to a simple bolt, as it puts less wear on the threads in the main (and often aluminum) engine bracket. Le “bride” on the nut is critical; it’s an integrated washer that spreads the clamping force, preventing the nut from cracking the compressor’s aluminum mounting ears or vibrating loose. This robust mounting is essential for keeping the Compresseur de climatisation FAW perfectly aligned with the serpentine belt.
Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 3 components identified in the ‘Air-Conditioning Compressor’ schéma du tracteur FAW CA4251P66K24T1A3E5. A replacement Compresseur de climatisation FAW is a key part of HVAC service.
| Marque | Partie no. | Nom de la pièce | Quantité |
|---|---|---|---|
| 1 | 8103020-36D | A/C Compressor Assembly | 1 |
| 2 | 3701327-36D | Boulon – for fastening AC generator | 2 |
| 3 | T32010 | Écrou à bride hexagonale | 2 |
Les spécifications pour le Compresseur de climatisation FAW are defined by its function as a high-pressure refrigerant pump. L'ensemble Compresseur de climatisation FAW is a key component for driver comfort and safety (defrosting).
| Demande de véhicule | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tracteur |
| Groupe de composants | Compresseur de climatisation FAW |
| Assemblage principal P/N | 8103020-36D |
| Pump Type | Swash Plate / Wobble Plate (Piston-Type) |
| Displacement Type | Variable (common) or Fixed (Clutch-Cycling) |
| Système d'entraînement | Engine Serpentine Belt (Poly-V Belt) |
| Fiançailles | 24V Electromagnetic Clutch |
| Réfrigérant (Typique) | R134a or R1234yf |
| Matériel de montage | 2x Studs (3701327-36D), 2x Hex Flange Nuts (T32010) |
| Fonction principale | To compress low-pressure gaseous refrigerant into a high-pressure, gaz chaud. |
Pièces FAW, y compris l'ensemble bloc-cylindres, sont emballés avec soin pour garantir une livraison en toute sécurité. Chaque composant est sécurisé dans des matériaux de protection pour éviter tout dommage pendant le transport. Le réseau logistique garantit des expéditions ponctuelles dans le monde entier, soutenir des opérations de maintenance efficaces. Vous trouverez ci-dessous une image illustrant l'emballage standard des pièces de camion FAW., mettant en valeur l’attention portée aux détails dans la manipulation et le stockage.
Cette approche d'emballage minimise le risque de corrosion ou de dommages causés par les chocs., s'assurer que les pièces comme l'ensemble bloc-cylindres FAW arrivent en parfait état. Les clients peuvent compter sur la logistique de FAW pour une qualité et une fiabilité constantes.
FAW est l’un des constructeurs automobiles les plus anciens et les plus importants de Chine., avec un capital social de RMB 35.4 milliards de yuans et actif total en RMB 457.83 milliards de yuans.
CHINE FAW GROUP CO., LTD. (abréviation de FAW), anciennement China First Automobile Works, peut retracer ses racines jusqu'à juillet 15, 1953, lorsque sa première usine d'assemblage a commencé à être construite. FAW est l’un des constructeurs automobiles les plus anciens et les plus importants de Chine., avec un capital social de RMB 35.4 milliards de yuans et actif total en RMB 457.83 milliards de yuans.
Ventes mondiales de camions lourds en Chine “cinq de suite”, ventes de camions lourds dans le monde “six de suite”, ventes de tracteurs pour 16 années consécutives, leader absolu de l'industrie.
