Multi-stage poppet valve reduces operational force via segmentation
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Solution Overview
Problem
Conventional poppet valves require increased force to operate effectively, especially with high-pressure fluids, making them difficult to use and requiring improved durability.
Innovation Solution
A multi-stage poppet valve design featuring a flow pipe with a main valve part and an auxiliary valve part that can be moved vertically to control fluid flow, using protrusions and flow spaces to distribute force and allow stepwise control of channel opening with reduced operational force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional poppet valve structure is used, then the valve can control fluid flow with a simple configuration, but the force required to move the valve body increases proportionally with fluid pressure, making it difficult to operate and reducing durability
Solution Approach 1:
The valve body is divided into multiple segments (first valve body, second valve body, third valve body) arranged in series along the fluid flow path. Each segment contains its own valve element (first poppet valve, second poppet valve, third poppet valve) that can independently open and close. This segmentation allows the total pressure differential to be distributed across multiple smaller pressure differentials, reducing the force required to operate each individual valve element while maintaining effective control over the entire fluid flow
2Device complexity
If a conventional poppet valve structure is used, then the valve can control fluid flow with a simple configuration, but durability must be improved in proportion to the magnitude of force required
Solution Approach 1:
The valve body is divided into multiple segments (first valve body, second valve body, third valve body) arranged in series along the fluid flow path. Each segment contains its own valve element (first poppet valve, second poppet valve, third poppet valve) that can independently open and close. This segmentation allows the total pressure differential to be distributed across multiple smaller pressure differentials, reducing the force required to operate each individual valve element while maintaining effective control over the entire fluid flow
Solution Approach 2:
The valve elements are designed to be dynamically responsive to pressure changes. Each poppet valve element can automatically open or close based on the pressure differential across its respective valve body segment, without requiring external actuation. This dynamic behavior reduces mechanical stress on the valve components and improves reliability by eliminating the need for complex actuation mechanisms
Data Source
AI summary
Provided is a multi-stage poppet valve including: a flow pipe in which a channel through which a fluid flows is formed; a fixing part extended inwardly from an inner peripheral surface of the channel of the flow pipe, and having a first channel formed therein, the first channel being hollowed in a vertical direction and having the fluid flowing therethrough; a main valve part disposed on the fixing part, having a second channel formed at the center of an inner portion thereof, and vertically moved by force acting in the vertical direction to open and close the first channel, the second channel having the fluid flowing therethrough; and an auxiliary valve part vertically moved in the second channel by force acting in the vertical direction to open and close the second channel, thereby controlling a flow rate of the fluid passing through the second channel.