Integrated L-Shaped Pressure Probe for Air Filter Clogging Detection
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Solution Overview
Problem
Existing air filtration systems lack the ability to effectively monitor and indicate when filters become full of debris, necessitating manual checks and potentially leading to inefficient maintenance.
Innovation Solution
An air filter with an integrated L-shaped pressure probe and sensor that measures pressure drop across the filter media, providing a warning when a predetermined pressure difference is reached, indicating the need for filter change or cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual checks are used to monitor filter status, then device complexity is reduced, but productivity decreases due to inefficient maintenance
Solution Approach 1:
The filter system performs self-monitoring through the integrated pressure sensor and L-shaped probe, automatically detecting when the filter media is clogged without requiring external manual inspection. The system serves itself by continuously measuring pressure differential and triggering alerts based on predetermined thresholds.
Solution Approach 2:
The pressure sensor provides continuous feedback about the filter media status to the monitoring system. When the pressure differential between upstream and downstream exceeds a predetermined threshold, the system receives feedback indicating the filter needs maintenance, enabling timely intervention.
2Loss of information
If no pressure monitoring is implemented, then device complexity is minimized, but loss of information occurs regarding filter status
Solution Approach 1:
The patent replaces manual visual inspection with an automated electronic pressure sensing system. The L-shaped probe with pressure sensor substitutes the mechanical/manual checking process, converting physical pressure differential into electrical signals for continuous monitoring and information retention.
Solution Approach 2:
The L-shaped probe acts as an intermediary element that bridges the filter media and the pressure sensor. It channels the pressure differential information from the filter environment to the sensing mechanism, enabling indirect measurement of filter status without direct contact with the filter media.
3Measurement precision
If integrated pressure sensor is added to filter, then measurement precision of filter status is improved, but device complexity increases
Solution Approach 1:
The L-shaped probe integrates multiple functions into a single component: it serves as both the mounting structure for the pressure sensor and the conduit for pressure differential measurement. The probe merges the structural support function with the sensing function, reducing overall system complexity despite adding measurement capability.
Solution Approach 2:
The L-shaped probe extends into the V-bank structure in three-dimensional space, positioning the pressure sensing aperture at the optimal location within the filter media depth. This spatial dimensionality change enables accurate measurement of pressure differential across the filter media by placing the sensor at the precise geometric location needed.
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
Enables automatic detection of filter clogging, ensuring timely maintenance and improving operational efficiency by reducing manual inspections.
Implementation Method 1
enables pressure drop measurement of a filter when installed
Data Source
AI summary
An air filter is provided with a built-in air pressure sensor that enables pressure drop measurement of the filter when installed. The air filter includes a frame structure and a filter media disposed in the frame structure and forming a plurality of V-banks or pockets. A static pressure tip mounted to extend upstream within one of the plurality of V-banks or pockets.