Analytical Model of Pressurized Distribution Jet Pump

Product Overview:

This anatomical model of a pressurized control distribution pump is based on a commonly used pressurized control distribution pump in diesel engines. Precisely cut, color-coded, and securely fixed to a dedicated teaching base, it serves as a core training tool for courses on diesel engine fuel supply systems and electronic fuel injection technology. It is suitable for vocational schools, automotive repair training institutions, and pre-employment training in enterprises.

The model fully preserves all core components, including the pressurization mechanism, distribution pump body, plunger assembly, delivery valve, control valve core, pressurization lines, electronic actuators (if any), and inlet/outlet ports. The cut positions are precisely aligned with key teaching points. Color-coded paint clearly distinguishes different functional modules such as the pressurization system, distribution mechanism, and control components, providing a visual demonstration of the assembly relationships, internal structure, and power transmission and fuel distribution paths of each component.

This model focuses on showcasing the core working principle of "pressure stabilization + precise distribution," clearly demonstrating how the pressure charging mechanism pressurizes the fuel to the specified pressure and how the distribution pump precisely distributes the high-pressure fuel to each injector according to the engine cylinder sequence. It also visually presents the pressure control logic and fuel distribution process, facilitating the explanation of the working mechanism, pressure regulation principle, and matching relationship with engine operating conditions of the pressure-controlled distribution injection pump.

The product adopts a high-strength fixed structure with a smooth, burr-free cut surface that is wear-resistant and corrosion-resistant. It can be repeatedly used for classroom demonstrations, student group observations, and structural awareness training, requiring no additional power to teach basic structure and principles. Its robust structure, high visibility, and emphasis on key teaching points effectively reduce the difficulty of understanding abstract principles such as pressure control and fuel distribution, helping students quickly grasp the structural characteristics, working logic, and core advantages of the pressure-controlled distribution injection pump, laying a solid foundation for subsequent diesel engine fuel system maintenance and fault diagnosis.

Features:

1. Utilizes a diesel engine high-pressure fuel pump assembly (with complete accessories) for dissection, showcasing all components and comprehensively demonstrating the assembly's internal and external structure.

2. By dissecting the components and spraying different colors on each section, the mechanical structure of the internal and external parts and their assembly relationships are clearly displayed.

3. The equipment base frame (with anti-vibration pads) is made of 1.5mm cold-rolled steel sheet, stamped and coated with a spraying process. The anti-vibration pads are fixed to the base with M6*4 screws.

Training Project:
I. Training Objectives
1. Identify the overall structure of the dissected model of the pressurized control distribution type injection pump, accurately identifying the core components and their assembly positions, including the pressurization mechanism, distribution pump body, plunger assembly, delivery valve, control valve core, pressurization pipeline, inlet and outlet ports, and electronic control actuators (if any).

2. Understand the core working principle of the pressurized control distribution type injection pump: "pressurization and stabilization, distribution per cylinder," and master the pressurization process of the pressurization mechanism, the fuel distribution logic of the distribution pump, and the pressure regulation mechanism.

3. Master the skills of structural identification, component function judgment, and basic assembly relationship inspection of this type of injection pump. Be able to verbally describe the function and collaborative working process of each component using a dissected model.

4. Establish an understanding of the correlation between common faults (such as insufficient pressure, uneven distribution, and leakage) and structural damage of pressurized control distribution injection pumps, and possess basic fault analysis and troubleshooting skills.

5. Standardize the operation of training equipment, cultivate rigorous training habits, and lay a foundation for subsequent diesel engine fuel system repair, fault diagnosis, and equipment maintenance.

II. Training Target

Students majoring in automotive inspection and repair, diesel engine technology, engineering machinery, and related fields at secondary/higher vocational schools; trainees at automotive repair training institutions and agricultural machinery repair training institutions; after-sales technicians and pre-employment training personnel from diesel engine-related enterprises.

III. Training Content

Project 1: Anatomical Structure Identification and Component Recognition of a Pressurized Controlled Distribution Jet Pump

Project 2: Demonstration and Understanding of the Working Principle of a Pressurized Controlled Distribution Jet Pump

Project 3: Jet Pump Structural Inspection and Assembly Relationship Analysis

Project 4: Common Fault Simulation and Analysis + Training Summary