Replaceable Restrictor Plate Gas Valve for Burner Gas Adaptation
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Solution Overview
Problem
Existing gas valve units for gas cooking appliances require complex adjustments to throttle opening cross-sections for different gas burners, gas types, and pressures, making it difficult to adapt to various configurations and gas types.
Innovation Solution
A gas valve unit design with a throttle plate accessible from the side, featuring a rotatable or linearly movable actuating shaft, and a system of plates including a valve sealing plate, pressure plate, and gas distribution plates, where the throttle plate can be easily replaced to accommodate different gas types, and actuated by a permanent magnet or mechanical means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the throttle plate is made accessible from the side of the valve body where the actuating shaft protrudes, then the ease of operation for adjusting throttle openings is improved, but the device complexity increases due to the additional cover and plate structure
Solution Approach 1:
The valve body is segmented into multiple functional plates (throttle plate, valve sealing plate, gas distribution plates) arranged parallel to each other, with the throttle plate made accessible through a cover on the actuating shaft side. This segmentation allows independent access to the throttle plate without disassembling gas lines or other components.
Solution Approach 2:
A cover is introduced as an intermediary component on the actuating shaft side of the valve body, providing access to the throttle plate while maintaining the integrity of the valve body structure. This intermediary element enables adjustment without direct exposure of internal components.
2Adaptability or versatility
If the throttle plate is made replaceable for different gas types, then the adaptability to different gas configurations is improved, but the device complexity increases due to multiple plates and assembly requirements
Solution Approach 1:
The throttle plate is designed as a separate, replaceable component within the multi-plate structure. Different throttle plates with varying opening cross-sections can be installed depending on the gas type and burner configuration, enabling adaptability without redesigning the entire valve body.
Solution Approach 2:
The valve body structure with multiple parallel plates is designed to accommodate different throttle plates for various gas types (natural gas, liquid gas, town gas) and pressure conditions. The same basic structure serves multiple functions by simply replacing the throttle plate.
3Adaptability or versatility
If multiple plates are arranged parallel to each other within the valve body, then the functionality for gas distribution and valve seating is improved, but the volume of the valve body increases
Solution Approach 1:
Multiple functional plates (throttle plate, valve sealing plate, gas distribution plates) are nested within the valve body in a compact parallel arrangement. The plates are stacked closely together, with each plate serving a specific function in gas flow control and valve operation, maximizing space utilization.
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
Enables simple adaptation of throttle opening cross-sections to suit different gas configurations, improving flexibility and ease of maintenance by allowing external access to the throttle plate without disassembling the gas lines, ensuring optimal gas flow for various burner outputs.
Implementation Method 1
The gas valve unit particularly advantageously has a permanent magnet, by means of which the open/close valves can be actuated. In particular, the shut-off bodies of the on-off valves can be moved by means of the force of at least one permanent magnet.
Data Source
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AI summary
The invention relates to a gas-valve unit for adjusting a volumetric gas flow that is fed to a gas burner of a gas device, particularly a gas cooking device. Said gas-valve unit has a valve chamber (20) and an actuation shaft (31) that protrudes out of the valve chamber (20), at least two on/off valves (3) of the gas-valve unit being designed in said valve chamber (20), and at least two restrictor points also being designed therein each of which has at least one restrictor opening (18). According to the invention, the valve chamber (20) has at least one restrictor plate (15) in which the restrictor openings (18) of the restrictor points are arranged, said restrictor plate (15) being accessible from the side of the valve chamber (20) on which the actuation shaft is protruding from the valve chamber (20). The restrictor plate (15) can thus be replaced. The valve chamber (20) has a covering (30) on the side of the valve chamber (20) on which the actuation shaft is protruding from the valve chamber (20), and the restrictor plate (15) is made accessible by removing said covering (30).