Air Filtration Flow Guide for Uniform Filter Loading

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Solution Overview

Problem

Existing air filtration systems are inefficient due to the angle at which ambient air enters and is drawn through the filters, resulting in underutilization of filter area and increased maintenance costs from premature filter replacement and reduced airflow throughput.

Innovation Solution

The implementation of a high-velocity air flow guide that accelerates ambient air from a first speed to a second speed before it enters the filter assembly, ensuring that a greater surface area of the filter is utilized, thereby improving airflow throughput and extending the time between filter replacements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If ambient air is drawn through the filter assembly at a standard angle, then the system structure is simple, but only a relatively small area of the air filter is used effectively to trap particles

Engineering Contradiction:
Improveeffective filter areaVSAvoidsystem structure
Core Design Contradiction:
Area of moving objectVSDevice complexity

Solution Approach 1:

The patent introduces a high-velocity air flow guide that redirects air flow from a standard angle to a high-angle trajectory, effectively utilizing the third dimension (vertical angle) to distribute air across the entire filter surface area. This dimensional change allows the air to traverse the filter at multiple angles, maximizing the effective filtering area without increasing system footprint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The air flow guide divides the air flow into multiple segments that strike different portions of the filter assembly. By segmenting the air flow path and directing it across various zones of the filter, the system ensures uniform utilization of the entire filter surface rather than concentrating air flow in a single area.

Inventive Principle:
Principle #1Segmentation

2Reliability

If air filters are frequently replaced due to premature wear, then particle trapping effectiveness is maintained, but maintenance cost increases

Engineering Contradiction:
Improveparticle trapping effectivenessVSAvoidmaintenance cost
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The high-velocity air flow guide ensures continuous and uniform distribution of air across the entire filter surface, preventing localized saturation and extending the operational life of the filter. This continuous uniform action maintains particle trapping effectiveness throughout the filter's extended service life, reducing the frequency of replacements.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The patent changes the air flow parameters (velocity and angle) to optimize filter utilization. By increasing air velocity and directing it at high angles across the filter surface, the system maximizes the effective filtering capacity, allowing the filter to handle greater volumes of air before reaching saturation and requiring replacement.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If air filtration devices are frequently turned off for cleaning, then filter performance is maintained, but air flow throughput decreases

Engineering Contradiction:
Improvefilter performanceVSAvoidair flow throughput
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The uniform high-velocity air flow distribution prevents localized clogging and maintains consistent filter performance over extended periods. This continuous uniform action reduces the need to shut down the system for cleaning, thereby maintaining higher air flow throughput and productivity.

Inventive Principle:
Principle #20Continuity of useful action

4Productivity

If the air filter surface area is increased to handle more air, then air flow throughput improves, but device size and cost increase

Engineering Contradiction:
Improveair flow throughputVSAvoiddevice size
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent utilizes angular dimensionality to maximize the effective use of the existing filter surface area. By directing air at high angles across the filter, the system extracts maximum throughput capability from the current device size, eliminating the need for larger filter surfaces to achieve the same productivity improvement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 enhances the efficiency of air filtration systems by evenly distributing ambient air across the filter assembly, reducing maintenance costs and extending the operational life of the filters.

Implementation Method 1

The second portion is configured to accelerate the air flow from a first speed to a second speed into the chamber prior to the fan drawing the ambient air from the chamber through the filter assembly

Methodology Applied
Scientific EffectAcceleration:

Implementation Method 2

The filter assembly includes one or more filtering elements configured to generate filtered air based on ambient air in a chamber of the housing

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS8123836B2Air filtration and purification apparatus
Publication Date: 2012.02.28 AIRISTAR TECHOLOGIES LLC
  • US8123836B2 patent drawing
  • US8123836B2 patent drawing
  • US8123836B2 patent drawing

AI summary

A method and apparatus for processing air is described herein. An example apparatus includes a housing, a high-velocity air flow guide, a filter assembly, and a fan. The high-velocity air flow guide includes a first portion and a second portion. The first portion is configured to form a passage within the housing, and the second portion is configured to divert and accelerate air flow of the ambient air from the passage to a chamber of the housing. The filter assembly includes one or more filtering elements configured to receive the ambient air from the chamber. The fan is configured to draw the ambient air from the chamber through the filter assembly and to generate processed air from the ambient air.