Vertical Air Intake Filter Element with Debris Diversion
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Solution Overview
Problem
In vertically arranged air intake systems, there is a risk of debris or particulates falling into the system during servicing, potentially damaging downstream equipment.
Innovation Solution
The design includes a primary filtration and air diverter region with a precleaner and a secondary filtration region, which are arranged to divert air flow in a way that reduces the likelihood of debris falling into the air intake system during servicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vertical air intake system is used, then air intake efficiency is improved, but debris may fall into the system during servicing
Solution Approach 1:
The air cleaner is divided into separate functional regions: a primary filtration region with a first filter element and a secondary filtration region with a second filter element. This segmentation allows the system to handle different types of contaminants at different stages, preventing debris from reaching downstream equipment while maintaining efficient air intake.
Solution Approach 2:
The secondary filtration region acts as an intermediary protective layer between the primary filtration region and the downstream equipment. The second filter element captures additional debris particles that may have passed through the first filter element, preventing them from contaminating the engine or other sensitive components.
2Ease of repair
If filter elements are replaced during servicing, then system maintenance is required, but debris may fall into the air intake system
Solution Approach 1:
The air cleaner housing is designed with a serviceable access opening that allows filter elements to be replaced without disassembling the entire air intake system. This preliminary design feature enables maintenance personnel to service the filters quickly and safely, minimizing the time the system is open and potentially vulnerable to debris contamination.
Solution Approach 2:
The filter elements are designed as removable components that can be extracted from the air cleaner housing for replacement. The housing structure allows the filter elements to be easily removed and replaced without affecting the integrity of the air intake system, enabling maintenance while minimizing debris contamination risk.
3Device complexity
If a single filtration stage is used, then device complexity is reduced, but debris may reach downstream equipment
Solution Approach 1:
The filtration system is segmented into two distinct stages: a primary filtration region with a first filter element for capturing larger particles, and a secondary filtration region with a second filter element for capturing smaller particles. This segmentation increases reliability by providing multiple layers of protection while maintaining manageable complexity through modular design.
Solution Approach 2:
The secondary filtration region is nested within or adjacent to the primary filtration region, with the second filter element positioned to capture debris that escapes the first filter element. This nested arrangement provides comprehensive debris protection without requiring a completely separate filtration system, thus balancing reliability with device complexity.
Data Source
AI summary
An air filter element includes a filter arrangement, an elbow, and a filter element seal member. The filter arrangement includes a filter media pack having a dirty air inlet and a clean air outlet, wherein air flowing through the clean air outlet flows in a first axial direction and the clean air outlet defines a filter arrangement cross sectional area. The elbow has a first end constructed to extend from the filter arrangement clean air outlet, a second end wherein air flowing through the second end flows in a second axial direction, and an air flow enclosure extending from the elbow first end to the elbow second end. The air flow enclosure includes an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction, and an interior volume between the elbow first end and the elbow second end. The filter element seal member is located on the elbow second end, wherein the filter element seal member is constructed to seal to a clean air intake, the filter element seal member located on the elbow second end defining a seal member cross sectional area. The filter element can be characterized as having a ratio of the seal member cross sectional area to the filter arrangement cross sectional area of at least 0.5. The filter element can have a z-filter media pack for a pleated media pack. The air filter element can be arranged in an air cleaner.