Control Valve Orifice Adaptation via Replaceable Seat
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Solution Overview
Problem
Conventional control valve devices require separate sub-blocks for each on/off valve, increasing the number of components and device size, and cannot easily change the orifice diameter without replacing the entire valve main body, posing a challenge in sharing the valve main body between different actuators or machines with varying requirements.
Innovation Solution
A control valve device with a valve main body that integrates an actuator port, communication passage, and an on/off valve with a seat member and poppet member that can be assembled to change the orifice diameter by replacing the seat member, allowing for flexible orifice selection while sharing a common valve main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate sub-block is provided for each on/off valve, then the on/off valve can be independently assembled and maintained, but the number of components increases and the device size increases
Solution Approach 1:
The patent merges the on/off valve directly into the valve main body by forming the valve body as an integrated component. The on/off valve includes a valve body portion that is formed as part of the main valve body structure, eliminating the need for separate sub-blocks. This integration reduces the number of components while maintaining the functional independence of the on/off valve through its dedicated valve seat and poppet mechanism.
2Adaptability or versatility
If the orifice diameter is changed without changing the valve main body specifications, then adaptability to different actuators is improved, but the valve main body must be redesigned or replaced
Solution Approach 1:
The patent segments the orifice function from the main valve body by making the valve body portion of the on/off valve a replaceable component. The valve body includes an orifice with a specific diameter that can be selected and assembled based on the actuator requirements. This segmentation allows different valve body portions with different orifice diameters to be used with the same valve main body structure, providing adaptability without requiring complete redesign of the valve main body.
Solution Approach 2:
The valve main body is designed with a universal structure that can accommodate different valve body portions with varying orifice diameters. The main valve body includes a standardized assembly hole and mounting features that work with multiple valve body configurations. This universal design allows a single valve main body to serve multiple functions with different actuators by simply changing the valve body portion, eliminating the need for multiple specialized valve main bodies.
3Manufacturing precision
If the valve main body is replaced to change the orifice diameter, then the orifice specification is updated, but the burden on suppliers increases and adaptability decreases
Solution Approach 1:
The patent segments the orifice function from the main valve body by making the valve body portion of the on/off valve a replaceable component. The valve body includes an orifice with a specific diameter that can be selected and assembled based on the actuator requirements. This segmentation allows different valve body portions with different orifice diameters to be used with the same valve main body structure, providing adaptability without requiring complete redesign of the valve main body.
Solution Approach 2:
The patent enables parameter changes (orifice diameter) by providing a selection of valve body portions with different orifice diameter specifications. Each valve body portion is designed with specific dimensional parameters that match the required actuator flow characteristics. By changing the valve body portion rather than the entire valve main body, the system achieves parameter customization while maintaining component interchangeability and reducing supplier burden through standardized mounting interfaces.
Data Source
AI summary
A control valve device includes a valve main body formed to have an actuator port connected to an actuator, a communication passage formed in the valve main body and configured to allow the actuator port to communicate with a drain port, and an on/off valve provided between the communication passage and the drain port, and the on/off valve includes a seat member assembled to the valve main body, an orifice provided in the seat member, and a poppet member configured to open and close a seat portion of the seat member.