Injector Mounting with Annular Cooling Chamber
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing holders for injectors in internal combustion engines and exhaust systems face challenges with excessive thermal stress, requiring complex insulation or cooling systems that are not always effective.
Innovation Solution
A holder design featuring a base body and cap made from metal sheets forming an annular chamber around the injector, with a coolant inlet and outlet, allowing for efficient cooling and reduced weight, using soldered or adhesive connections, and potentially incorporating an integrated injector housing and expansion for space-saving cooling of the injector and its components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If insulation materials or separate cooling systems are provided to protect the injector against excessive thermal stress, then the injector is protected from thermal damage, but the system becomes technically complex
Solution Approach 1:
The holder structure is merged with the cooling system by integrating coolant channels directly into the holder body. The holder simultaneously serves as a structural component and a cooling device, eliminating the need for separate cooling systems and reducing overall complexity while maintaining thermal protection of the injector
Solution Approach 2:
The holder is designed to perform multiple functions: it provides mechanical support for the injector, creates the necessary mounting structure, and simultaneously serves as a cooling device through integrated coolant channels. This multi-functionality reduces the number of separate components needed in the system
2Reliability
If thick-walled components are used to provide adequate thermal protection, then the injector is adequately cooled, but the weight of the holder increases
Solution Approach 1:
Coolant channels are integrated into the holder structure to provide active thermal management. The hydraulic cooling system allows for efficient heat removal from the injector without requiring excessive material thickness, thereby reducing the holder's weight while maintaining adequate thermal protection
Solution Approach 2:
The holder design incorporates cooling channels specifically in the regions where thermal protection is most critical for the injector. This localized approach to cooling allows for weight reduction in non-critical areas while maintaining adequate thermal management where needed
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides effective thermal protection for the injector, is lightweight, and adaptable to significant temperature differences, ensuring reliable operation while minimizing material and production costs.
Implementation Method 1
The at least one annular chamber can be connected to a coolant inlet and a coolant outlet
Implementation Method 2
The annular chamber is used in particular to create a distance between the injector and the outer surface of the holder, so that the annular chamber can be used to represent a heat barrier for the injector
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a mounting (1) for an injector (2), comprising at least one main body (3) and a cap (4) to form a joint receptacle (5) of the injector (2), wherein the main body (3) is formed of metal sheets (6, 7) which are connected to each other and together form at least one annular chamber (8) which extends around the receptacle (5). In particular a mounting for an injector is provided, which has a simple technical design and can be cooled (optionally in a controlled manner). Moreover, the mounting has a particularly lightweight design and is adapted to operation with considerable temperature differences.