Ventilator

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Solution Overview

Problem

Current space cooling technologies, such as ceiling and wall-mounted fans, are energy inefficient and aerodynamically flawed, as they push hot air down to users, failing to effectively circulate cool air and relying on room geometry for air circulation.

Innovation Solution

A ventilator utilizing an induced vortex concept, creating a three-dimensional air flow pattern that lifts cold air from the floor and distributes it through a controlled spiral flow, amplified by a venturi design and flow amplifier, to provide efficient and directed cooling without mixing with hot air.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If conventional bladed ceiling fans are used to circulate air, then air movement is achieved, but hot air is pushed from the ceiling to users below and energy efficiency is poor

Engineering Contradiction:
Improveenergy efficiencyVSAvoidair temperature
Core Design Contradiction:
Use of energy by moving objectVSTemperature

Solution Approach 1:

Instead of pushing hot air down from the ceiling like conventional fans, this invention inverts the approach by drawing cool air up from the floor level through a central suction inlet and distributing it through the ceiling surface, thereby delivering cool air to users rather than hot air

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The invention uses a blower device with a vortex chamber that generates a controlled vortex flow to draw cool air from the floor and distribute it through the ceiling. The vortex mechanism creates a pressure differential that enables efficient air circulation without conventional blades

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Productivity

If conventional bladed fans are used, then air circulation is achieved, but the design is aerodynamically inefficient

Engineering Contradiction:
Improveair circulation efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The invention employs a vortex-based pneumatic system where a blower device creates a rotating air flow pattern within a vortex chamber. This vortex flow efficiently draws cool air from the floor and distributes it through the ceiling, achieving superior air circulation compared to conventional bladed fans

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The invention inverts the conventional fan approach by using a vortex mechanism to pull air through the system rather than pushing air with blades, resulting in improved aerodynamic efficiency and productivity

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If ceiling-mounted fans with fixed air-flow direction are used, then installation is simple, but air flow direction cannot be oscillated and cooling effectiveness is limited

Engineering Contradiction:
Improveair flow direction controlVSAvoidcooling effectiveness
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The invention incorporates a dynamic vortex flow system where the air flow direction and pattern can be controlled and adjusted. The vortex chamber and flow amplifier work together to create a controllable three-dimensional air flow pattern that can be directed to different areas, providing operational flexibility

Inventive Principle:
Principle #15Dynamics

4Ease of manufacture

If the Dyson bladeless fan design is used, then safety and perceived modernity are improved, but the design is expensive and limited to standing fan configuration

Engineering Contradiction:
Improvemanufacturing costVSAvoidmounting flexibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The invention creates a multi-functional device that can be mounted in multiple configurations (ceiling-mounted, wall-mounted, or standing) while maintaining the bladeless safety feature. The vortex chamber design is adaptable to different mounting positions, providing universal applicability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of using concealed blades in a standing configuration like the Dyson fan, this invention inverts the approach by using a vortex chamber system that enables ceiling or wall mounting while maintaining the bladeless safety advantage and reducing manufacturing complexity

Inventive Principle:
Principle #13The other way round (Inversion)

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

The ventilator achieves energy-efficient natural cooling by amplifying air flow, reducing energy consumption, and ensuring cool air is distributed effectively, independent of room geometry, with flexible deployment options and integrated features like lighting and heating.

Implementation Method 1

The flow amplifier may form a venturi with the first wall. During operation, negative pressure is felt at an inlet of the air flow passage and at an outlet of the airflow passage.

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Implementation Method 2

a circumferential gap between the first wall and the second wall configured to allow a high velocity air stream to exit and to spiral in a direction away from a structure to which the ventilator is configured to be mounted

Methodology Applied
Scientific EffectVortex flow: Vortex Ring

Implementation Method 3

In nature, hot air rises while cold air sinks. The invention lifts cold air from the floor level to be funnelled up, amplified and distributed over the user(s) or occupant(s) through an entirely new three-dimensional (3-D) vortex air flow pattern.

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS10309667B2Ventilator
Publication Date: 2019.06.04 NANYANG TECH UNIV
  • US10309667B2 patent drawing
  • US10309667B2 patent drawing
  • US10309667B2 patent drawing

AI summary

A ventilator comprising an air blower; a casing comprising a first wall and a second wall configured to house the air blower centrally and to define a radially decreasing volume therebetween, a circumferential gap between the first wall and the second wall configured to allow a high velocity air stream to exit and to spiral in a direction away from a structure to which the ventilator is configured to be mounted, and a central opening in the second wall configured as a suction inlet of the air blower; and a flow amplifier adjacent the casing and configured to amplify air flow through an air flow passage defined between the flow amplifier and the second wall of the casing.