Needle valve nozzle anatomical model

Product Overview:

This product is based on the standard needle valve type diesel engine injector (universal structure of pin/hole type). It features precise dissection of the original injector assembly, visualized cross-sections, color-coded markings, and a static display combined with a dynamic, simulated structural design. Specifically designed for teaching the fuel supply system and injector structure principles of diesel engines, it is a core training tool for internal combustion engine, automotive application and maintenance, and construction machinery majors.

Features:
1. Uses a Hall-effect nozzle assembly (with complete accessories) for dissection, showcasing all components and comprehensively displaying the assembly's internal and external structure.

2. Through dissection and different colors applied to each cross-section, the mechanical structure of the internal and external components 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. The anti-vibration pads are secured to the base with M6*4 screws.

Training Project:

I. Overall Training Objectives

1. Master the overall structure, component names, and core functions of needle valve type nozzles (shaft-type/orifice-type), and be able to accurately identify key components.

2. Understand the core working principle of needle valve type nozzles: "pressure opening, sealing closure, and fuel atomization," and clarify the high-pressure oil passage routing and needle valve movement logic.

3. Be able to perform standardized disassembly and assembly operations of needle valve type nozzles, and master the inspection methods and assembly requirements for precision components.

4. Be able to analyze the causes of typical needle valve type nozzle failures and possess basic fault diagnosis and troubleshooting skills.

5. Develop good habits of standardized operation and safe training, and become familiar with methods for protecting precision components.

II. Applicable Equipment

Needle valve type nozzle anatomical model (including both shaft-type and orifice-type structures, with anatomical cross-sections, manual simulation needle valve lifting mechanism, dedicated stand and markings; matching dedicated disassembly and assembly tools, seal samples, and fault case cards).

III. Basic Cognitive Training Projects (Beginner Level)

Project 1: Identification of the Overall Structure of a Needle Valve Nozzle

Project 2: Observation and Understanding of Core Component Structure

IV. Principle Demonstration Training Projects (Advanced Level)

Project 3: Demonstration of the Opening and Closing Principle of a Needle Valve

Project 4: Training on Fuel Atomization Principle and Fuel Channel Flow

V. Disassembly, Assembly, and Hands-on Training Projects (Skill Level)

Project 5: Standard Disassembly and Assembly Training of a Needle Valve Nozzle

Project 6: Training on Inspection of Precision Components

VI. Fault Diagnosis Training Projects (Comprehensive Level)

Project 7: Analysis and Judgment of Typical Fault Phenomena

Project 8: Fault Simulation and Troubleshooting Training