3D Printed Precombustion Chamber Module for Gas Engine
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Solution Overview
Problem
The integration of an active precombustion chamber into internal combustion engines is challenging due to the need for precise geometric configuration, high energy spread in the precombustion chamber, and coordinated ignition torch spread into the main combustion chamber, while maintaining high power density and minimal modifications to existing engine structures.
Innovation Solution
A method for producing an internal combustion engine with a precombustion chamber module manufactured using 3D printing or additive methods, allowing for precise geometric configuration and integration of the precombustion chamber injector and ignition device, while minimizing modifications to existing engine structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an active precombustion chamber is integrated into the internal combustion engine, then reliable and reproducible ignition is achieved, but the device complexity increases due to additional components and precise geometric configuration requirements
Solution Approach 1:
The precombustion chamber module integrates multiple functions into a single component: the precombustion chamber cavity, ignition device receptacle, and fuel injector receptacle are merged into one modular unit that can be installed as a single assembly into the cylinder head, reducing overall device complexity while maintaining ignition reliability
Solution Approach 2:
The engine is divided into modular components where the precombustion chamber module can be separately manufactured and tested before installation into the cylinder head, allowing for easier manufacturing and maintenance while ensuring reliable ignition function
2Manufacturing precision
If 3D printing is used to manufacture the precombustion chamber module, then manufacturing precision is improved for complex geometric configurations, but the ease of manufacture decreases due to specialized manufacturing processes
Solution Approach 1:
Traditional mechanical manufacturing methods (milling, drilling, tapping) are replaced with additive manufacturing (3D printing) technology to create the precombustion chamber module, enabling complex internal geometries and integrated features that would be difficult or impossible to achieve with conventional machining while maintaining manufacturing precision
3Ease of manufacture
If the precombustion chamber module is designed as a separate component, then ease of manufacture is improved through modular production, but the device complexity increases due to additional assembly steps
Solution Approach 1:
The precombustion chamber module is designed as a universal component that can be installed in different cylinder head configurations and serves multiple functions (combustion, ignition housing, fuel injection), reducing the need for additional specialized parts and simplifying overall assembly despite its multifunctional nature
Data Source
AI summary
The disclosure relates to a method for producing an internal combustion engine, in particular a gas engine, comprising a precombustion chamber and an ignition device that protrudes into the precombustion chamber, and a precombustion chamber injector that supplies fuel to the precombustion chamber, characterized in that a precombustion chamber module having an integral cavity, forming the precombustion chamber, is manufactured as a separate component from the cylinder head, wherein the precombustion chamber module comprises, in addition to the cavity forming the precombustion chamber volume, at least one transfer port for the fluidic connection between the precombustion chamber and main combustion chamber, and the precombustion chamber module is produced as a whole or at least in part by means of an additive method, in particular by 3D printing.