Airflow Regulator Device With Overlapping Nozzles
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Solution Overview
Problem
Existing air flow regulators in ventilation systems generate unwanted noise and pressure drops due to turbulence and are limited to parallel connections, making them unsuitable for serial or ring-mounted systems, and require additional space for placement.
Innovation Solution
A device with two movable parts having corresponding elongated openings that maintain a streamlined shape during airflow regulation, allowing for coherent adjustment of airflow without altering the direction or creating turbulence, and can be scaled and integrated into various ventilation systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional flow regulators (dampers, valves) are used to regulate airflow, then airflow magnitude can be controlled, but unwanted noise and pressure drop increase due to turbulence
Solution Approach 1:
The flow regulator is divided into two separate parts (first part and second part) that can move independently relative to each other. Each part has openings that correspond to the other, allowing for precise control of airflow while maintaining streamlined flow characteristics and reducing turbulence.
Solution Approach 2:
The second part is made movable relative to the first part, enabling dynamic adjustment of the overlapping opening areas. This dynamic configuration allows continuous variation of airflow magnitude while preserving smooth airflow paths that minimize turbulence and associated noise.
2Productivity
If openings are partially covered to regulate airflow, then flow magnitude is adjusted, but turbulence and noise increase
Solution Approach 1:
Instead of partially covering openings from one side, the invention uses two parts with corresponding openings that overlap. The degree of overlap in the overlapping dimension controls airflow magnitude, while the openings maintain their full shape and streamlined characteristics, preventing turbulence and noise.
3Productivity
If traditional air control devices with movable plates are used, then airflow can be regulated, but additional space is required for placement and they are limited to parallel connections
Solution Approach 1:
The flow regulator design with two parts having corresponding overlapping openings can be universally applied to various ventilation system configurations including serial connections, parallel connections, and ring-mounted systems. The compact design requires no additional space beyond the duct cross-section, making it adaptable to diverse installation environments.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3~5
AI summary
The invention refers to a device for creating a variable flow in air and climate products, which can serve as air supplying means and exhaust units in a ventilation system, which device comprises two cooperating flow guiding means, a first means and a second means, wherein the first means comprises at least one first nozzle defined by inclining walls forming an opening in the bottom and an opening at the top, and the second means comprises at least one second nozzle defined by inclining walls forming an opening in the bottom and an opening at the top, and wherein the at least one first nozzle and the at least one second nozzle together forms at least one mutual nozzle whereby the airflow can be regulated by displacing at least one of the first and second means in relation to the other in a lengthwise direction, and wherein the at least one first nozzle is further provided with a tab on one end wall, forming an inner end wall of the mutual nozzle when the second means is dislocated.. The invention further refers to a ventilation system comprising such a device.