Gas Control Valve Radial Segmentation Flow Resistance
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Solution Overview
Problem
Conventional gas control valves experience high flow resistance, especially when operating with small gas flows, and do not perform equally well across the entire range between maximum open and closed positions.
Innovation Solution
The gas control valve design features a stationary housing with radially inner and outer sections, dividing gas flow into two partial flows between these sections and the valve body, minimizing flow resistance by allowing independent passage through offset openings in the inner and outer ring sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the gas control valve uses a conventional single-channel flow path, then the structure is simple, but the flow resistance is high especially at small gas flows
Solution Approach 1:
The housing is divided into a radially inner section and a radially outer section, creating two separate flow channels. The valve body is correspondingly segmented with inner and outer ring sections, each having offset passage openings. This segmentation allows gas to flow through two parallel paths simultaneously, reducing overall flow resistance while maintaining structural simplicity.
2Device complexity
If the gas control valve operates with a single flow path, then the control mechanism is simple, but the performance is inconsistent across the entire operating range
Solution Approach 1:
The single flow path is segmented into two parallel channels (inner and outer sections). Each channel has its own passage openings that are offset from each other, allowing independent flow control. This segmentation enables more consistent performance across the entire operating range from maximum closed to maximum open positions by distributing flow through multiple paths.
Solution Approach 2:
Different sections of the valve (inner and outer ring sections) have different local characteristics with offset passage openings. The inner ring section has passage openings at different positions than the outer ring section, creating local quality variations that optimize flow distribution across different operating conditions, improving overall performance consistency.
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 design ensures low flow resistance and consistent performance across the entire operating range, enabling the valve to function effectively from maximum closed to maximum open positions.
Implementation Method 1
a servo pressure prevailing in the drive chamber 15 acting on the valve body 13 against a gas outlet pressure prevailing in the gas outlet chamber 16, against a gas inlet pressure prevailing in the gas inlet chamber 17 and against a spring force of a valve body spring element 21
Implementation Method 2
a first gas flow occurs between the radially inner section of the housing part and the valve body and a second gas flow between the radially outer portion of the housing part and the valve body flows into the gas outlet chamber
Data Source
Figure 1
AI summary
The valve (10) has a fixed housing part (12) including a radial inner section (18) and a radial outer section (19). A movable valve body (13) is positioned between the sections, such that a gas stream (22) flows between the inner section and the body, and another gas stream (23) flows between the outer section and the body, to a gas outlet chamber (16) in an open position of the valve. The body is movable by servo pressure opposite to gas outlet pressure and opposite to or together with a spring force of a spring element (21) in a direction of a maximum opening position.