Coaxial Filter Module Axial Interface Design
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Solution Overview
Problem
Existing fuel filter assemblies lack an efficient and simple design for separating water and contaminants from fluids, particularly in heavy-duty applications, where radial interfaces complicate construction and installation.
Innovation Solution
A filter module with coaxially arranged water separation, primary, and secondary filter interfaces, allowing for axial outflow and simplifying construction, which can be used in various fluid filtration applications, including motor vehicles and stationary energy generation, with a primary and secondary filter element configuration that can be either pre- or main filters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If radial interfaces are used for water separation and filtration, then filtration function is achieved, but construction complexity and installation difficulty increase
Solution Approach 1:
The patent transitions from radial interfaces to axial interfaces, changing the dimensional orientation of the filtration and water separation processes. The water separation interface and filter interfaces are now arranged coaxially in the axial direction, allowing fluid to flow through the filter elements and water to separate and discharge axially, eliminating the need for complex radial interfaces while maintaining effective filtration functionality
2Reliability
If radial interfaces are used, then filtration is achieved, but installation errors and faulty installations increase
Solution Approach 1:
The patent employs asymmetric coaxial arrangement where the water separation interface, primary filter interface, and secondary filter interface are positioned at different axial locations but maintain rotational symmetry around a common axis. This asymmetric axial positioning with rotational symmetry creates a unique installation orientation that prevents faulty installations while maintaining ease of installation through the simplified axial interface design
3Device complexity
If coaxial axial outflow is implemented, then construction is simplified, but water separation efficiency must be maintained
Solution Approach 1:
The patent segments the filtration system into distinct functional zones along the axial direction: a water separation interface for water discharge, a primary filter interface for primary filtration, and a secondary filter interface for secondary filtration. This axial segmentation allows each interface to perform its specific function efficiently while maintaining overall construction simplicity through the coaxial arrangement and gravitational water separation
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 coaxial design simplifies construction, eliminates the need for radial interfaces, and provides effective contamination separation, enhancing filtration efficiency and preventing faulty installations, while being adaptable to different fluid types and applications.
Implementation Method 1
the water separation interface, the primary filter interface, and the secondary filter interface are each embodied for outflow of material flows in axial direction, in particular downwardly in the direction of gravity in an arrangement of use
Implementation Method 2
a primary filter element; a secondary filter element... The filter module or the filter assembly is designed in particular to filter fluids, for example, air or other gases, liquids, in particular liquid operating media of a vehicle
Data Source
AI summary
A filter module for a filter assembly has a primary filter element and a secondary filter element. A water separation interface is provided for discharging water, which has been separated by the primary filter element from a fluid to be filtered, from the primary filter element. A primary filter interface is provided for discharging fluid, which has been filtered by the primary filter element, from the primary filter element. A secondary filter interface is provided for discharging the fluid, which has been filtered by the secondary filter element, from the secondary filter element. The water separation interface, the primary filter interface, and the secondary filter interface are arranged coaxially to a symmetry axis of the filter module. The water separation interface, the primary filter interface, and the secondary filter interface are each designed for outflow of material flows in axial direction of the symmetry axis.