Gas Flow Control Device Linear Valve Actuation
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Solution Overview
Problem
Existing electronically controlled gas stoves face challenges in fine-tuning and smoothly regulating gas flow due to the limitations of plug valves, which have a small size and limited hole openings, making it difficult to achieve precise control.
Innovation Solution
A gas flow control device featuring a driving device, valve rods, and reset devices that use a motor and conversion mechanisms, such as gear wheels or cams, to directly or indirectly drive valve cores, allowing for linear motion and precise control of gas flow through multiple outlets, including a logarithmic spiral structure for enhanced regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a plug valve is used to control gas flow, then the structure is simple and compact, but fine tuning and smooth regulation of gas flow is difficult
Solution Approach 1:
The valve core is divided into multiple segments with different numbers of holes, allowing selective engagement of different segments to achieve different gas flow rates. This segmentation enables fine tuning of gas flow by switching between predefined flow characteristics, resolving the contradiction between operational ease and structural simplicity.
Solution Approach 2:
The valve core is designed to rotate and engage different circular arrays of holes at different rotational positions, creating dynamically adjustable gas flow paths. This dynamic mechanism allows smooth regulation of gas flow by progressively opening different hole patterns, maintaining structural simplicity while improving ease of operation.
2Measurement precision
If the valve core size is small with limited holes, then the device is compact, but gas flow regulation precision is insufficient
Solution Approach 1:
Multiple circular arrays of holes are arranged in different rotational dimensions around the valve core axis. By rotating the valve core to different angular positions, different combinations of holes from different arrays are engaged, effectively increasing the number of controllable flow paths without significantly increasing the valve core volume.
Solution Approach 2:
Multiple circular arrays of holes are nested concentrically within the valve core structure, with each array containing holes of different sizes and distributions. This nested arrangement maximizes the information content (flow regulation options) within a compact volume, achieving high precision gas flow control without increasing overall device size.
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
This solution enables precise control of gas flow, overcoming the limitations of plug valves by allowing for smooth regulation and fine-tuning, improving the ability to manage gas flow effectively in electronically controlled gas stoves.
Implementation Method 1
one end of the elastic component is held against the stop portion, and the other end of the elastic component is held against the lower bottom surface of the truncated cone structure of the first valve core
Data Source
Figure 1~3
Figure 4~6
AI summary
A gas flow control device for a gas stove, comprising at least one gas valve (1, 4, 5) and a driving device (11, 12, 13, 14, 15, 16), the driving device (11, 12, 13, 14, 15, 16) being configured for actuating the at least one gas valve (1, 4, 5) between an open and a closed position thereof in a linear manner.