Conical Gas Cock Modulation for Precise Burner Flame Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Professional gas burner cocks lack the ability to finely adjust cooking temperature due to fixed minimum and maximum gas positions, making it difficult to control gas supply between these positions, and require complex electronic adjustments for low gas rates.
Innovation Solution
A gas cock with a conical plug and modulating groove that allows continuous adjustment of gas flow by rotating the plug, enabling precise control of gas rates between maximum and minimum positions without electronic intervention, using a one-piece brass alloy body with a truncated cone-shaped plug and seat for stable and accurate modulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed minimum and maximum gas positions are used in professional gas burner cocks, then the device structure is simple, but the ability to finely adjust cooking temperature is limited
Solution Approach 1:
The invention transforms the static fixed-position gas flow control into a dynamic continuous adjustment system. The modulating groove with variable cross-section allows the gas flow rate to vary continuously as the plug rotates, enabling dynamic control of cooking temperature rather than being restricted to fixed minimum and maximum positions.
Solution Approach 2:
The invention changes the geometric parameter of the gas passage by creating a modulating groove whose cross-sectional area varies continuously along its length. This parameter change enables continuous modulation of gas flow rate, allowing fine adjustment of cooking temperature without requiring complex electronic control systems.
2Measurement precision
If electronic means are used to adjust gas flow for low gas rates, then precise control of low gas rates is achieved, but the mechanical design complexity increases
Solution Approach 1:
The invention replaces the proposed electronic adjustment system with a purely mechanical solution. The modulating groove's variable cross-section is precisely engineered to provide accurate gas flow control at all rates, including low gas rates, through mechanical rotation alone, eliminating the need for electronic components while maintaining measurement precision.
3Adaptability or versatility
If a modulating groove with variable cross-section is introduced, then continuous gas flow adjustment is enabled, but the manufacturing complexity increases
Solution Approach 1:
The modulating groove is designed as a series of progressively varying cross-sectional sections rather than a completely irregular shape. This segmentation approach allows the complex variable geometry to be manufactured using standard machining operations, breaking down the complex continuous profile into manageable discrete sections that can be fabricated with conventional tools.
4Ease of operation
If the groove depth varies continuously, then fine gas rate control is achieved, but the plug geometry becomes more complex
Solution Approach 1:
The modulating groove is designed with an asymmetric variable cross-section where the depth varies continuously in one direction while maintaining a consistent width or following a simplified profile in the perpendicular direction. This asymmetric design achieves fine gas rate control through depth variation while keeping the overall plug geometry manageable and manufacturable.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A gas cock (1) for a gas burner, preferably a professional gas burner provided with a pilot flame, comprising a cock body (10) in which a plug receiving seat (2) and a gas passage opening (3) are formed for the passage of the gas from or to the plug receiving seat (2). The cock also comprises a conical plug (4), comprising a side wall (41) that extends around a central conical plug axis (X) and is housed in the plug receiving seat (2) in a gas-tight manner. The conical plug (4) comprises a plug opening (42) for the passage of gas from or to the plug receiving seat (2) via the inner cavity (43) of the conical plug (4) on the basis of a presettable angle of rotation (a) between the cock body (10) and the conical plug (4). A groove (6) that is connected to the plug opening (42) is made in the outer wall surface (411) of the side wall (41) of the conical plug (4). The groove (6) comprises at least one modulating portion (M) that predominantly extends between a first angular position (Cl) and a second angular position (C2) in a circumferential direction (C) of rotation of the conical plug (4) so as to have a depth (H) that increases or decreases in the radial direction (R) that is perpendicular to the side wall (41).