Bladeless Damper Throat Structure for Leak-Free Flow Control
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Solution Overview
Problem
Existing dampers with blades are prone to failure due to material buildup and are not completely sealed, leading to inefficient fluid flow control and air leakage.
Innovation Solution
A bladeless damper device with a conical throat structure and modular design, featuring an elongate body with a passageway and segmented construction to control fluid flow without blades, ensuring a complete seal and reducing material buildup within conduits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If blades are used to control fluid flow, then flow control capability is improved, but material buildup on blades causes failure and reduced reliability
Solution Approach 1:
The patent removes the blades entirely from the damper system, extracting the problematic component that caused material buildup and failure. Flow control is achieved through the conical throat geometry rather than mechanical blades, eliminating the reliability issue while maintaining operational capability.
Solution Approach 2:
The patent replaces the mechanical blade system with a geometric flow control system using a conical throat. This substitution eliminates moving parts and mechanical wear, replacing them with a static geometric structure that controls flow through pressure differential created by the conical shape.
2Ease of operation
If traditional damper designs are used, then flow control is achieved, but complete sealing is not provided resulting in air leakage
Solution Approach 1:
The patent employs flexible sealing elements that conform to the conical throat geometry, creating a complete seal between the damper body and duct. These flexible membranes or shells adapt to the conical shape, ensuring tight sealing without leakage while maintaining flow control capability.
3Ease of operation
If blades are used in dampers, then flow control is possible, but the complexity of blade mechanisms increases device complexity
Solution Approach 1:
The patent extracts and removes the complex blade control mechanisms entirely, replacing them with a simple conical throat geometry. This eliminates motors, linkages, and control systems while maintaining flow control through geometric pressure differential.
Solution Approach 2:
Instead of using moving blades to control flow, the patent inverts the approach by using a fixed conical geometry that creates pressure differential. The control is achieved through the inverse of traditional methods - using geometric constriction rather than mechanical obstruction.
4Ease of operation
If conventional damper designs are used, then flow control is achieved, but material buildup within the conduit increases
Solution Approach 1:
The patent uses a conical throat geometry with smooth curved surfaces that prevent material accumulation. The continuous curved profile of the conical shape eliminates sharp corners and flat surfaces where material could buildup, allowing debris to be swept through by the airflow.
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 solution effectively controls fluid flow, increases resistance and pressure, and prevents material buildup in conduits, providing a reliable and efficient alternative to traditional blade-based dampers.
Implementation Method 1
A throat is disposed within the body and between the first opening and the second opening of the elongate body having an inside diameter smaller than the inside diameter of the first opening and the second opening
Implementation Method 2
increases resistance and pressure
Data Source
AI summary
A damper device that includes an elongate body containing a passageway for fluid to flow there through and a first opening and a second opening, wherein the first opening and the second opening have an inside diameter. A throat is disposed within the body and between the first opening and the second opening of the elongate body having an inside diameter smaller than the inside diameter of the first opening and the second opening.