Filter Element Heating Jacket Design for Space Efficiency
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Solution Overview
Problem
Existing filter elements for fluids, particularly in automobile combustion engines, face challenges in minimizing installation space and achieving high heating efficiency, especially in the radial direction, while maintaining effective fluid flow and filtering performance.
Innovation Solution
The filter element design incorporates a heating jacket that surrounds the filter medium hollow body, allowing for a swivel connection of the electrical connecting element from a preassembly position to a final assembly position, reducing radial installation space and enhancing heating efficiency by using a swivel connection and a supporting hollow body that can be made of plastic, allowing for fluid permeability and reduced pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the heating jacket is closely integrated with the filter medium hollow body, then heating efficiency is improved, but installation space in the radial direction increases
Solution Approach 1:
The heating jacket is nested around the filter medium hollow body, with the heating element positioned within the hollow body structure. This nesting arrangement allows close thermal contact for high heating efficiency while minimizing the overall radial footprint by utilizing the internal hollow space of the filter medium structure.
2Ease of operation
If the electrical connecting element is arranged radially in a preassembly position on the outside of the filter element, then accessibility of front sides is improved, but device complexity increases
Solution Approach 1:
The electrical connecting element is pre-assembled in a radially positioned preassembly position on the outside of the filter element before final assembly. This preliminary arrangement makes the front sides of the heating jacket and filter medium hollow body freely accessible for connection operations, while the preassembly position is designed to be easily integrated into the final assembly process.
3Use of energy by moving object
If the heating jacket is embodied as a hollow body closed circumferentially, then heating efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The heating jacket is designed as a hollow body that serves multiple functions: it provides thermal insulation, structural support, and electrical isolation. The circumferentially closed hollow structure creates an efficient thermal barrier while the hollow interior allows for electrical connecting elements to be integrated without increasing overall complexity.
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 design achieves reduced installation space, improved heating efficiency, and lower pressure loss between inflow and outflow sides, while maintaining effective fluid flow and filtering performance, by allowing the heating jacket to be closely integrated with the filter medium and supporting structure.
Implementation Method 1
an electrical heating jacket... which has an end member on at least one front side that is connected tightly at least to the filter medium
Implementation Method 2
allowing for a swivel connection of the electrical connecting element from a preassembly position to a final assembly position
Implementation Method 3
a supporting hollow body that can be made of plastic, allowing for fluid permeability and reduced pressure loss
Data Source
AI summary
A filter element (10) of a filter for fluid, particularly fuel, oil, water, urea solution or air, particularly of a combustion engine, particularly of an automobile, and a method for manufacturing same are described. The filter element (10) comprises a filter medium (14) structured as a filter medium hollow body (12) and closed circumferentially at least with respect to an element axis (16). The filter medium (14) is enclosed at least partially circumferentially and at least partially axially by an electrical heating jacket (26). The filter medium (14) has, on at least one front side, an end member (32) that is connected tightly at least to the filter medium (14). After insertion of the filter medium hollow body (12) into the heating jacket (26), the front side of the filter medium hollow body (12) is provided with an end member (32).