Replaceable Multiple Filter Units for Fresh and Return Air
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Solution Overview
Problem
HVAC systems require separate and complex ductwork systems to filter fresh and return air, making filter replacement difficult, especially in larger buildings with multiple units.
Innovation Solution
The development of replaceable multiple filter units that can simultaneously filter fresh and return air, reducing the need for redundant ductwork and allowing for easier access and maintenance by positioning the units at accessible locations within a building.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate ductwork systems are used to filter fresh air and return air through separate filters in HVAC units, then each air stream can be filtered independently, but the ductwork becomes long and complex and filter replacement becomes difficult and time-consuming
Solution Approach 1:
The patent combines multiple filter units (fresh air filter and return air filter) into a single housing structure, allowing both filters to be accessed and replaced simultaneously from one location. This merging eliminates the need for separate ductwork paths to reach each filter, reducing overall ductwork complexity while maintaining independent filtering capability for both air streams.
Solution Approach 2:
The single housing structure serves multiple functions by accommodating both fresh air filtration and return air filtration in one unit. This multi-functional design allows the system to handle multiple air streams through a common access point, reducing the number of separate components and simplifying the overall HVAC filtration system.
2Reliability
If multiple HVAC units with separate filters are installed in larger buildings, then air filtration coverage is increased, but the number of filters to replace increases and maintenance becomes more arduous
Solution Approach 1:
By combining multiple filter units into a single housing, the patent allows maintenance personnel to access and replace multiple filters (fresh air and return air filters) simultaneously from one location. This eliminates the need to access multiple separate HVAC units distributed throughout the building, significantly reducing the time required for filter replacement while maintaining comprehensive air filtration coverage.
3Productivity
If HVAC units are positioned in difficult to reach locations such as attics or rooftops, then space is optimized and HVAC function is provided, but filter replacement becomes an arduous task
Solution Approach 1:
The patent consolidates multiple filters into a single housing unit that can be positioned at an accessible location. This allows the housing to be placed in easily accessible areas rather than requiring multiple units in hard-to-reach locations like attics or rooftops. The merged design maintains comprehensive filtration capability while dramatically improving filter accessibility for routine maintenance.
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 solution enables more efficient filter replacement and maintenance, reduces ductwork complexity, and allows for independent control of air ratios and characteristics, improving air quality and reducing the burden of filter replacement in large HVAC systems.
Implementation Method 1
The filter may be configured to simultaneously filter the air received via the first input and the second input
Data Source
AI summary
Examples of the present disclosure are related to systems and methods for replaceable multiple filter units. More specifically, embodiments describe replaceable filter units that are configured to simultaneously filter fresh and return air.