Constant flow regulator mechanism
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Solution Overview
Problem
Existing constant flow regulator mechanisms for air circulation in air conditioning and ventilation systems are complex, requiring specific calibration of springs and having internal components that complicate maintenance and repair, leading to increased costs and complexity.
Innovation Solution
A constant flow regulator mechanism featuring a rotary valve with a strip and multipositional element, where the strip is secured to a spindle for external tensioning and activation, allowing for easy regulation of the valve's opening without internal spring calibration, with all components located externally for simplified maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spring mechanism is used for flow regulation, then the valve opening can be regulated to maintain constant flow, but the spring requires specific calibration for each regulator which increases manufacturing complexity and cost
Solution Approach 1:
The patent extracts the calibration function from the spring mechanism itself and relocates it to an external adjustment mechanism. The spring remains as a simple return element without calibration requirements, while a separate adjustment mechanism (comprising an adjustment screw, lever, and limit stop) handles the flow regulation calibration externally, eliminating the need for individual spring calibration during manufacturing.
Solution Approach 2:
The patent introduces an intermediary adjustment mechanism between the user's control needs and the valve opening. Instead of directly calibrating the spring, the adjustment mechanism mediates by translating rotational input into precise linear displacement of the lever, which then controls the valve opening indirectly through the limit stop, simplifying the manufacturing process.
2Ease of operation
If the regulation mechanism is located inside the casing, then the valve can be controlled, but repair and replacement of parts becomes complicated
Solution Approach 1:
The patent extracts the entire regulation mechanism from the internal casing environment and relocates it to the external surface of the casing. The adjustment mechanism, including the screw, lever, and limit stop, is now accessible from outside, allowing easy maintenance and repair without disassembling the casing or disturbing internal components.
Solution Approach 2:
The patent segments the regulator into distinct functional modules: the internal valve mechanism remains sealed within the casing, while the regulation mechanism is separated and mounted externally on the casing surface. This segmentation allows independent access to the regulation components for maintenance while preserving the integrity of the internal flow control system.
3Manufacturing precision
If a complex spring calibration system is used, then flow can be regulated, but production costs increase due to individualized processing
Solution Approach 1:
The patent extracts the calibration function from the manufacturing process and relocates it to the installation/maintenance phase. Standard springs without calibration are used during manufacturing, reducing production complexity and cost. The specific flow regulation calibration is performed later through the external adjustment mechanism during installation or maintenance.
Solution Approach 2:
The patent enables end-users or maintenance personnel to perform their own flow calibration through the external adjustment mechanism, eliminating the need for specialized manufacturing processes. The self-contained adjustment mechanism with visual indicators allows users to calibrate the system themselves based on their specific flow requirements.
Data Source
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AI summary
The invention relates to a constant flow regulator mechanism, of those which are formed by a casing inside which a rotary valve with at least one flap allows the passage of a certain constant flow, according to the position thereof, and by a plate of mechanisms, wherein said plate comprises a strip, secured at one end to a strip support and at the other end to a spacer element which is secured at its ends to said strip and to a multipositional element, the rotation shaft of which coincides with the drive shaft of the valve. The strip support is fixed on a spindle, for the advance and tensioning of the strip. This spindle comprises manual activation means which allow, by means of varying the tensioning of the strip, regulating the degree of opening of the valve as a consequence of the connection between the elements forming the mechanism. The mechanism in turn comprises a damper for reducing the possible vibrations thereof.