Poppet Valve Spring Guide Integration for Compressor Pressure Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Poppet valves for piston compressors exhibit high wear and pressure loss, limiting their operational efficiency and reliability.
Innovation Solution
A poppet valve design featuring a catcher, valve body with inlet channels, and closing elements guided by a spring that encloses both the guide part and closing element, allowing for a larger flow area and reduced stress on the spring, resulting in lower pressure losses and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional spring arrangement is used where the spring is positioned separately from the guide part, then the structure is simpler, but the flow cross-section is reduced and pressure losses increase
Solution Approach 1:
The patent combines the spring and guide part into a single integrated component where the spring surrounds the guide part axially along a partial section. This merging creates a unified structure that maximizes the flow cross-section in the catch area while maintaining all necessary functional elements, thereby reducing pressure losses without excessive complexity
Solution Approach 2:
The spring is designed to surround the guide part in a nested arrangement, with the guide part positioned inside the spring's interior space. This nesting allows both components to occupy the same axial space efficiently, creating large component-free gaps for fluid flow while maintaining structural integrity and functional separation
2Duration of action of moving object
If the spring has a smaller diameter to reduce overall valve size, then the valve is more compact, but the stresses within the spring increase leading to higher wear and reduced service life
Solution Approach 1:
The patent optimizes the spring's geometric parameters, specifically using a larger diameter spring with adjusted coil density and wire cross-section. This parameter change reduces the stress within the spring during operation, thereby extending service life and reducing wear, while the overall valve height is controlled through the axial partial section design
3Loss of energy
If the closing element is guided externally by a separate guide mechanism, then the guidance is more stable, but the retaining structure becomes larger increasing pressure loss
Solution Approach 1:
The guide part is integrated into the closing element as an internal guide, with the guide part forming a hollow cylindrical structure that provides axial guidance. This internal guidance mechanism is nested within the closing element itself, eliminating the need for separate external guide structures and maintaining compact, flow-friendly geometry while ensuring stable axial movement
Solution Approach 2:
The guide function is merged with the closing element structure, where the guide part is formed as an integral component of the closing element. This merging eliminates separate guide components and their associated retaining structures, creating large component-free gaps that reduce flow resistance and pressure losses
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 design achieves low pressure loss and wear, enabling cost-effective and reliable operation with easy replacement of components, and reduces the overall height of the poppet valve.
Implementation Method 1
a spring (5) is arranged between the catch (3) and the closing element (4) to exert a preload force on the closing element (4) directed towards the valve seat (7a)
Implementation Method 2
the closing element (4) is movably mounted in an axial direction (A) on a guide element (6) that extends at least partially inside the closing element (4) and is preferably slidably mounted
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The poppet valve (1) for a piston compressor comprises a catcher (3), a valve body (2) with a plurality of inlet ducts (2a), wherein each inlet duct (2a) opens into a valve seat (7a), and comprises a plurality of closing elements (4) which can be moved in an axial direction (A), wherein each inlet duct (2a) is assigned a closing element (4), and wherein the valve seat (7a) is arranged so as to lie opposite the associated closing element (4) in the axial direction (A), in such a way that the valve seat (7a) can be closed by way of the closing element (4), wherein a spring (5) is arranged between the catcher (3) and the closing element (4), in order to bring about a prestressing force on the closing element (4), which prestressing force is oriented towards the valve seat (7a), wherein a guide part (6) which runs in the axial direction (A) is arranged on the catcher (3), on which guide part (6) the closing element (4) is guided movably in the axial direction (A), wherein the closing element (4) comprises a closing head (4a) and a guide section (4b), wherein the closing head (4a) and the guide section (4b) follow one another in the axial direction (A), wherein the closing element (4), starting from the guide section (4b), has a guide inner space (4c) which extends in the axial direction (A) into the interior of the closing element (4) in the direction of the closing head (4a), in which guide inner space (4c) the guide part (6) also runs, wherein the closing head (4a) has an end side (4g) which widens in the axial direction (A), in the direction of the guide section (4b), as far as a maximum circumference (4q), wherein the maximum circumference (4q) has a circumference centre point (MF), and wherein the guide inner space (4c) extends in the direction of the closing head (4a) at least in such a way that the circumference centre point (MF) comes to lie within the guide inner space (4c).