Fluted Filter Housing With Safety Filter to Prevent Media Telescoping
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Solution Overview
Problem
Current air filtration systems using fluted filter media often experience telescoping due to pressure differentials, which can lead to inefficiencies and reduced effectiveness in filtering flowing fluids, particularly in engines where proper support mechanisms for the filter media packs are lacking.
Innovation Solution
The implementation of filter assemblies that include a grate at the outlet end of the filter media to prevent telescoping, combined with a secondary filter element that provides axial support and sealing to the primary filter element, ensuring effective filtration and media stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluted filter media is used without proper support, then filtration is achieved, but telescoping occurs due to pressure differential
Solution Approach 1:
A secondary filter element is introduced as an intermediary component between the primary filter element and the housing. This secondary element provides structural support to prevent telescoping of the fluted filter media while maintaining the filtration function. The secondary filter element acts as a mediator that resolves the conflict between achieving filtration and preventing media pack instability.
Solution Approach 2:
The filter assembly is divided into two distinct filter elements: a primary filter element for filtration and a secondary filter element for structural support and sealing. This segmentation allows each component to specialize in its function, with the secondary element preventing telescoping without interfering with the primary filtration function of the fluted media.
2Quantity of substance
If filter media pack size is increased to improve filtration capacity, then more filtration area is available, but telescoping becomes more likely
Solution Approach 1:
The secondary filter element serves as a supporting intermediary that enables the use of larger filter media packs for increased filtration capacity while preventing the telescoping that would otherwise occur with larger, more vulnerable media structures.
3Device complexity
If seal member is integrated with filter element, then assembly is simplified, but sealing effectiveness may be compromised
Solution Approach 1:
The sealing function is separated from the filter element and assigned to the secondary filter element. This segmentation allows the seal member to be independently optimized for sealing effectiveness while the primary filter element maintains its filtration function. The secondary element's structure is specifically designed to provide reliable sealing between the filter assembly and the housing.
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 solution effectively prevents telescoping of the filter media, enhancing the filtration efficiency and stability of the filter assemblies by providing additional support and sealing mechanisms, thereby maintaining the integrity of the filtration process.
Implementation Method 1
The seal acts between the filter element and the filter housing preventing bypass around the filter media from the inlet to the outlet
Implementation Method 2
engines utilize air filtration systems for filtering air, the fluid, prior to using the air within the engine
Implementation Method 3
the filter assemblies include one or more grates that extend across an outlet end of the filter media of the primary filter element to prevent telescoping thereof
Data Source
AI summary
The present invention generally relates to filtration, and more particularly to filter assemblies including filter housings, filter elements and safety filter elements for filtering flowing fluid such as air.