Standardized Expansion Tank With Interchangeable Insert
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Solution Overview
Problem
The existing manufacturing processes for expansion tanks in motor vehicle cooling systems lack standardization, making it difficult to simplify production and storage for different engines and cooling systems, leading to inefficiencies in heat transfer and deaeration.
Innovation Solution
A standardized manufacturing process for expansion tanks using a single-piece plastic shell with interchangeable inserts of varying inner diameters and colors, which are snap-coupled to the collar, providing improved heat shielding and deaeration while allowing for easy identification and differentiation of tanks for different applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different expansion tanks are manufactured for different cooling systems and engines, then the tanks can be optimized for specific applications, but the manufacturing complexity and storage requirements increase
Solution Approach 1:
The patent applies universality by creating a single standardized tank body design that can serve multiple cooling system applications. The tank body is designed with standardized collar dimensions and mounting features that allow it to be adapted to different engine types and cooling system configurations through the use of interchangeable inserts and accessories, eliminating the need to manufacture completely different tank bodies for each application.
Solution Approach 2:
The patent applies segmentation by dividing the expansion tank into modular components: a universal tank body and separate interchangeable inserts that can be fitted into the collar. This segmentation allows the main tank structure to be standardized while the inserts provide application-specific functionality, simplifying manufacturing by producing one tank body design and multiple insert variants.
2Object-affected harmful factors
If a cylindrical bushing insert is added to reduce heat transmission, then heat shielding improves, but the device complexity and manufacturing steps increase
Solution Approach 1:
The patent merges the heat shielding function with the existing collar structure by integrating the cylindrical bushing insert directly into the collar assembly. The insert is positioned within the collar's internal cavity and works together with the collar to provide both structural support and thermal insulation, combining multiple functions into a single integrated component rather than adding separate elements.
3Adaptability or versatility
If multiple tank variants are produced for different applications, then adaptability improves, but storage space and inventory management become more difficult
Solution Approach 1:
The patent reduces storage requirements by producing a single universal tank body design that can be configured for different applications through interchangeable inserts. Instead of storing multiple complete tank variants, the system stores one tank body type and multiple insert types, significantly reducing the volume of stationary storage space needed while maintaining the ability to serve different cooling system applications.
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
This solution simplifies the manufacturing and storage of expansion tanks by standardizing their design, reduces heat transfer, improves deaeration, and minimizes gurgling sounds after engine shutdown, while enabling the production of tanks suitable for various engines and cooling systems.
Implementation Method 1
the expansion tank is provided with a cylindrical bushing, defining an insert that has a radial thickness of about 0.5 mm and is fixed inside the plastic collar, to reduce the transmission of heat from the coolant fluid to said collar
Data Source
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AI summary
A manufacturing process for making different expansion tanks (1) for different cooling systems or different engines of motor vehicles includes making shells (2) identical in shape and size for the different expansion tanks (1), making tubular inserts (16) differing in the value of their inner diameter, selecting for each shell (2) the most suitable tubular insert (16) based on the type of cooling system and/or the type of engine, and fitting the selected inserts (16) in collars (10) of the corresponding shells (2).