Poppet Valve With Segmented Closing Elements
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Solution Overview
Problem
Conventional poppet valves exhibit high wear, pressure losses, require a large installation height, and are sluggish, making them inefficient for high-speed operations.
Innovation Solution
A poppet valve design featuring a valve seat cover with multiple inlet channels and a closing element holding device that allows for multiple closing elements to be arranged symmetrically on a grid structure, enabling low friction, reduced wear, and lower flow resistance, with the ability to easily replace worn components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional poppet valve design is used, then结构简单 (simple structure), but 磨损严重 (severe wear) and 压力损失大 (high pressure loss)
Solution Approach 1:
The valve is divided into multiple independent closing elements (at least two) that can move independently relative to the valve seat, rather than using a single closing element. This segmentation allows each closing element to be optimized for specific flow paths while reducing overall wear on any single component through distributed contact points.
Solution Approach 2:
The invention introduces axial movement capability to the closing elements, transforming them from fixed or rotation-only components into multi-degree-of-freedom elements that can move axially relative to the valve seat. This dimensional change enables the closing elements to assume different positions (open/closed) while maintaining optimal contact characteristics.
2Speed
If conventional poppet valve design is used, then installation is simple, but 安装高度大 (large installation height) and 响应 sluggish (sluggish response)
Solution Approach 1:
The valve structure is segmented into modular components including the valve seat, multiple closing elements, and spring elements arranged in series along the flow path. This segmentation allows for a more compact overall arrangement that reduces the axial installation height while maintaining the necessary functional clearances for rapid valve operation.
Solution Approach 2:
The closing elements are designed with dynamic movement capabilities including axial displacement and potential rotation, allowing them to respond rapidly to pressure differential changes. The spring elements provide dynamic restoring force that accelerates valve closure, improving response speed while the compact arrangement minimizes installation height.
3Loss of energy
If conventional poppet valve design is used, then structure is simple, but 流量损失大 (high flow loss) and 摩擦力大 (high friction)
Solution Approach 1:
The flow path is divided into multiple parallel channels, each with its own closing element, allowing the total flow to be distributed across several smaller openings. This segmentation reduces turbulence and pressure loss in each individual channel while the multiple closing elements can be arranged to minimize frictional losses through optimized positioning and movement characteristics.
Data Source
AI summary
A poppet valve including a valve seat cover having a plurality of inlet channels, wherein each inlet channel opens into a valve seat, and includes a plurality of closing elements, which are movable in an axial direction (A), wherein a closing element, which is movable in an axial direction (A), is associated with each valve seat in order to close the valve seat, wherein all closing elements are arranged on a common closing element holding device and the closing element holding device is movable in the axial direction (A) such that the closing elements can assume at least two positions, an open position, in which the closing elements are raised relative to the valve seats, and a closed position, in which the closing elements rest against the valve seats.