Sistema de suministro de combustible FAW J6P: Deconstruyendo 50 Piezas críticas para la inyección de precisión

Bienvenidos a esta experta deconstrucción del Sistema de suministro de combustible FAW J6P (Capítulo 23). este es el completo “Carril común de alta presión” (hpcr) Montaje para FAW Jiefang CA3250P66K2L1T1E 6×4 camión volcado.

This is not a simple fuel line; es un complejo “Asamblea lógica” de 50 tipos de componentes, engineered for one purpose: to create and control immense pressure.

El “lógica” de esto Sistema de suministro de combustible FAW J6P is to draw fuel, filter it, pressurize it to over 25,000 PSI, and inject it as a microscopic, atomized mist directly into the cylinders at the precise microsecond it is needed.

El “Common Rail Logic” is what defines this Sistema de suministro de combustible FAW J6P. Unlike old systems, the ‘Fuel injection pump’ (compensación 1) does not *time* the injection; it only “generates pressure.” This immense pressure is stored in the “carril común” (the high-pressure pipes, compensación 35-42). Este “lógica” allows the ‘Injectors’ (compensación 18) to be electronically controlled, independent of the pump. Este “Multi-Shot Injection Logic” (firing multiple, tiny injections per power stroke) is what gives the engine its quiet operation, its low-end torque, its fuel efficiency, and its low emissions.

Esta guía de expertos es un recurso esencial para los técnicos de motores., fuel system specialists, y gerentes de repuestos. We will deconstruct the entire 50-component group into its four primary “lógica” sistemas: el “Low-Pressure & Lógica de filtración” (the priming pump and filter), el “High-Pressure Generation Logic” (the main injection pump), el “High-Pressure Distribution Logic” (the common rail pipes), y el critico “Injection & Lógica de retorno” (the injectors and return lines). Esta es la guía completa de la Sistema de suministro de combustible FAW J6P.

Centro 1: El “Low-Pressure & Filtración” Lógica (compensación 28, 49)

el de este grupo “lógica” is to pull fuel from the tank, “prime” el sistema, and provide “Filtración absoluta” before the fuel ever reaches the expensive high-pressure pump.

1. Componente: ‘Rotary-style hand-priming pump assy’ (1117010-29D)
Este (compensación 49) es el “Lógica de servicio.” El Sistema de suministro de combustible FAW J6P es “self-bleeding” during normal operation, but after a filter change, the lines are full of air. Este “hand-priming” pump’s “lógica” is to allow a technician to manually *pull* fuel from the tank, *push* it through the ‘Fuel filter’ (compensación 28), and *bleed* all the air out of the system. Starting the engine with air in the lines can damage the high-pressure pump.

2. Componente: ‘Fuel filter assy’ (1012010-36D)
Este (compensación 28) es el “System Protection Logic.” Este es el “portero” para todo Sistema de suministro de combustible FAW J6P. Carril común de alta presión (hpcr) components have tolerances measured in *microns*. A single grain of sand or a drop of water will *instantly* destroy the ‘Fuel injection pump’ (compensación 1) or the ‘Injectors’ (compensación 18). Este “Lógica de filtración absoluta” means this filter must remove 99.9% of all water (via an integrated separator) and all particulate matter down to 2-5 micrones. Un barato, low-quality filter is the number one cause of Sistema de suministro de combustible FAW J6P falla.

Centro 2: El “High-Pressure Generation” Lógica (The HPCR Pump)

Este grupo representa el “músculo” del Sistema de suministro de combustible FAW J6P. Its sole function is to generate over 25,000 PSI of fuel pressure.

1. Componente: ‘Fuel injection pump assy’ (1111010C31E)
Este (compensación 1) es el “Pressure Logic.” This is a high-precision, “desplazamiento positivo” bomba (likely a 3-piston radial pump). se necesita el “low-pressure” (60-90 PSI) fuel from the filter (compensación 28) and compresses it to an immense 25,000+ PSI. Es “self-lubrication” logic is that it uses the diesel fuel itself as its *only* lubricant. This is another reason why the ‘Fuel filter’ (compensación 28) is so critical.

2. Componente: ‘Fuel injector drive gear’ (1111216-59D)
Este (compensación 7) es el “Drive Logic.” This high-pressure pump is not electric. Es “gear-driven” directly from the engine’s internal “Timing Gear Train.” Este “Gear-Drive Logic” es un “life-of-the-engine” solución, as it is 100% reliable and perfectly timed with the engine’s rotation.

3. Componentes: ‘Support-fuel injection pump’ (1111101-31mi) & 'Soporte’ (1111102-29D)
These brackets (compensación 31 & 34) son los “Lógica de alineación.” The ‘Drive gear’ (compensación 7) must mesh *perfectly* with the engine’s timing gear. These heavy-duty, cast brackets bolt to the engine block and provide a rigid, precision-machined mounting flange that guarantees this perfect alignment.

4. Componentes: ‘Lube oil pipe assy’ (1104060-29D) & 'Perno hueco’ (1104066-367)
Este (compensación 10 & 11) es el “Pump Lubrication Logic.” While the *pumping* side of the HPCR pump is fuel-lubricated, es “conducir” lado (with its own bearings and camshaft) is lubricated by *engine oil*. esta pipa “lógica” es para “grifo” clean oil from the engine block and feed it directly to the pump’s bearings, ensuring its long-term durability. This is a critical link for the Sistema de suministro de combustible FAW J6P.

Centro 3: El “High-Pressure Distribution” Lógica (The Common Rail)

Este grupo forma el “Ferrocarril común” sí mismo. Es “lógica” es actuar como un “pressure reservoir” o “accumulator,” storing the 25,000+ PSI from the pump and distributing it to all six injectors.

1. Componentes: ‘High-pressure fuel pipe assy’ (cilindro 1-6) (1129010… a …1129060-31mi)
Estos (compensación 35-40) are the six individual “injector lines.” These are the most critical pipes in the Sistema de suministro de combustible FAW J6P. Su “lógica” es “Identical Length.” They are *all* precisely bent to be the exact same length. This is crucial. If one pipe were shorter, el “pressure waves” from the injector firing would be different, causing Cyl 1 to get a different pressure “legumbres” than Cyl 6. By making them identical, el “pressure-wave logic” is balanced, ensuring every cylinder gets the *exact* same fuel, for a smooth, balanced engine.

2. Componentes: ‘High-pressure fuel pipe clip/base/gasket’ (1129100-29D, etc.)
este grupo (compensación 41-48) es el “Nvh & Lógica de seguridad.” The six high-pressure pipes (compensación 35-40) “throb” violently with every injection event. If allowed to touch each other or the engine, they would “rozar,” vibrate, and develop a “fatigue crack.” A high-pressure fuel leak at 25,000 PSI is not a “goteo”—it is an *atomized*, highly-flammable mist that will instantly cause a massive engine fire. El “lógica” of these clips and brackets is to hold every pipe perfectly rigid and isolated, preventing this critical failure in the Sistema de suministro de combustible FAW J6P.

Centro 4: El “Injection & Devolver” Lógica (The Injector)

Este grupo final “lógica” is to perform the “final event”: injecting the high-pressure fuel into the cylinder.

1. Componente: ‘Injector’ (1112010-31mi)
Este (compensación 18) es el “Atomization Logic.” It is a high-speed, electronically-controlled (solenoide o piezo) needle valve. When the ECU commands, it opens for a few *microseconds*. El 25,000+ PSI pressure forces the fuel through microscopic holes in its nozzle, “atomizing” it into a vapor-like mist that ignites instantly for maximum power.

2. El “Sellando” Lógica: ‘Injector gasket’ (1112306-29D) & 'Junta tórica’ (1112014-29D)
The injector (compensación 18) must be sealed from two things. La 'Junta’ (compensación 17) is a copper “lavadora de aplastamiento” en la parte inferior. Es “lógica” es sellar el 2000+ PSI of *combustion pressure* out. La junta tórica’ (compensación 19) is a rubber seal at the top. Es “lógica” is to seal the low-pressure “fuel return” *in*, preventing fuel from leaking onto the hot engine.

3. El “Reprimición” Lógica: ‘Injector presser plate’ (1112013-29D) & ‘Bolt’ (1112011-29D)
Este “Lógica de sujeción” is what holds the injector in its bore. El 'perno’ (compensación 21) pulls up on the ‘Presser plate’ (compensación 20), which pivots and creates a high “downward” force on the injector. This force is what “crushes” the ‘Gasket’ (compensación 17) to create the combustion-proof seal.

4. El “Devolver” Lógica: ‘Fuel injector return pipe assy’ (1104050-29D)
Este (compensación 13) es el “Bypass Cooling Logic.” The HPCR pump and injectors “derivación” a large amount of fuel to cool and lubricate their own moving parts. This ‘Return pipe’ “lógica” is to collect all this “usado” fuel from the injectors and the pump and route it safely back to the fuel tank. This is a vital part of the Sistema de suministro de combustible FAW J6P‘s thermal management.

FAW J6P Fuel Supply System Parts List & Presupuesto

La siguiente tabla proporciona la información completa, desglose detallado de todos 50 tipos de componentes en el Sistema de suministro de combustible FAW J6P Para FAW Jiefang CA3250P66K2L1T1E 6×4 camión volcado.

Especificaciones principales

Las especificaciones para el Sistema de suministro de combustible FAW J6P are defined by its function as a high-pressure common rail (hpcr) sistema de inyección.