Air diffuser assembly

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Solution Overview

Problem

HVAC systems face challenges in maintaining effective air filtration, as traditional air filters located near the blower become dirty quickly and lose effectiveness due to constant exposure to high-speed air, leading to reduced air quality and potential germ transfer.

Innovation Solution

An air diffuser assembly with an internal filter located in the duct, a cover with adjustable vent assemblies for airflow direction, and a user interface with illumination and sensors, allowing for improved airflow management and filter accessibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the air filter is located near the blower to clean all air at a central location, then air filtration coverage is improved, but the filter becomes dirty quickly and loses effectiveness due to constant exposure to high-speed air

Engineering Contradiction:
Improveair filtration effectivenessVSAvoidfilter service life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent extracts the air filter from its traditional location near the blower and relocates it to the air diffuser assembly at the duct outlet. This separation removes the filter from the high-speed airflow environment near the blower, reducing the rate at which it becomes dirty and maintains filtration effectiveness over a longer period while still filtering all circulated air through the diffuser location.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the cover is designed to be permanently sealed to protect internal components, then protection is improved, but filter accessibility for maintenance is worsened

Engineering Contradiction:
Improvecomponent protectionVSAvoidfilter accessibility
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The cover is designed with dynamic characteristics, allowing it to be removed or opened to provide access to the air filter for maintenance and replacement. When closed, it protects internal components; when opened, it enables filter servicing. This dynamic design resolves the contradiction between protection and accessibility by allowing the cover to switch between protective and accessible states as needed.

Inventive Principle:
Principle #15Dynamics

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

Enhances air filtration efficiency, maintains air quality, and allows for customizable airflow and illumination, improving the overall performance of HVAC systems in residential and commercial environments.

Implementation Method 1

an air filter located in the aperture

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS11774135B2Air diffuser assembly
Publication Date: 2023.10.03 CIURICOV VICTOR
  • US11774135B2 patent drawing
  • US11774135B2 patent drawing
  • US11774135B2 patent drawing

AI summary

An air diffuser assembly for transferring airflow from an HVAC system to an environment. The air diffuser assembly comprises a body at least partially located in a duct of the HVAC system and a cover including at least one vent assembly for permitting airflow through the cover and into the environment. The body defines an aperture for transferring airflow from the duct and an air filter is located in the aperture for filtering air transferred therethrough. The cover includes a closed position, wherein the cover is placed against the body to form a cavity, and an open position, wherein the cover is moved from the body to permit access to the filter.