Linear air diffuser

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Solution Overview

Problem

Conventional linear air diffusers are heavy, costly, prone to condensation, and require complex installation, compromising their functionality and maintenance needs.

Innovation Solution

A linear air diffuser made of lightweight materials like PVC or ABS, with spacers and interconnection means for easy assembly, and adjustable flow redirection elements for controlled air distribution, eliminating the need for extruded aluminum and reducing condensation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional diffusers are made of extruded aluminum, then structural strength is improved, but weight and cost increase

Engineering Contradiction:

Improvestructural strengthVSAvoidweight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The patent changes the material parameter from extruded aluminum to PVC profiles, fundamentally altering the weight and cost characteristics while maintaining structural functionality through profile geometry optimization

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The diffuser employs a composite construction combining PVC profiles with polyurethane foam insulation and fabric covering, creating a lightweight yet structurally adequate assembly that eliminates the need for heavy aluminum extrusions

Inventive Principle:

Principle #40Composite materials

2Stability of the object's composition

If conventional diffusers are made of aluminum, then structural rigidity is improved, but condensation formation increases

Engineering Contradiction:

Improvestructural rigidityVSAvoidcondensation formation

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material thermal properties by replacing conductive aluminum with insulating PVC, fundamentally altering the thermal behavior to prevent condensation while maintaining structural rigidity through profile design

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The polyurethane foam insulation acts as an intermediary layer between the cold air flow and the external environment, preventing condensation on the diffuser surface while the PVC profile maintains structural integrity

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If adjustable slats are used for flow control, then air distribution flexibility is improved, but device complexity increases

Engineering Contradiction:

Improveair distribution flexibilityVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The diffuser is divided into modular sections with independently adjustable components, allowing flexible air distribution control through simple mechanical means without complex actuation systems

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates adjustable elements that can change position to control air flow direction and distribution, providing adaptability through simple mechanical adjustment rather than complex automated systems

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP4653779A1Linear air diffuser

Publication Date: 2025.11.26 TECNOSYSTI

Figure 1~2
Figure 3
Figure 4

AI summary

A linear air diffuser (1), which comprises a box-like body (2) composed of lateral profiles (3a, 3b) for flow redirection blades or slats or deflectors or baffles (4a, 4b) and stopper plugs (6a, 6b). The diffuser is provided with spacers (12) provided with interconnection means (14a, 14b, 14c, 14d) and with means for locking (18) their selective position with respect to said lateral profiles (3a, 3b).