Pressure-Controlled Valve Insert for Undisturbed Flow Sensitivity
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Solution Overview
Problem
Existing pressure controlled valves disturb fluid flow due to the presence of biasing elements within the flow path, and they often require multiple components to achieve desired pressure control and sensitivity.
Innovation Solution
A pressure controlled valve design where the biasing element is positioned outside the fluid flow path, utilizing an insert element with openings to allow fluid flow while stabilizing and tensioning the biasing element, allowing for high sensitivity and adjustable capacity without disturbing the fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the biasing element is placed inside the flow path to provide tension and stability, then the valve achieves reliable pressure control, but the fluid flow is disturbed by the biasing element
Solution Approach 1:
The biasing element is extracted from the flow path and positioned in a recess or cavity within the valve body, allowing it to provide tension and stability without interfering with fluid flow. The insert element with openings maintains biasing element stability while permitting undisturbed fluid passage through the valve.
Solution Approach 2:
The biasing element is nested within a recess or cavity in the valve body, creating a hierarchical structure where the biasing element is contained within the valve housing. This nesting allows the biasing element to function reliably while being shielded from direct fluid flow interference.
2Measurement precision
If multiple components are used to achieve desired pressure control and sensitivity, then the valve performance is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The insert element combines multiple functions: it provides structural support for the biasing element, creates the necessary tension through its geometry, allows fluid flow through its openings, and contributes to valve body stability. This merging of functions reduces the total component count while maintaining high pressure control sensitivity.
Solution Approach 2:
The insert element serves multiple purposes simultaneously: it acts as a structural support, a flow passage component, and a biasing element tensioning mechanism. This multi-functionality reduces device complexity while achieving the desired pressure control performance.
3Object-generated harmful factors
If the biasing element is positioned outside the flow path using an insert element, then fluid flow is not disturbed, but the biasing element tension and stability must be achieved differently
Solution Approach 1:
The insert element acts as an intermediary between the biasing element and the valve body, transferring and distributing the biasing forces while maintaining element stability. The insert element with openings mediates between the need for biasing element tension and the requirement for undisturbed fluid flow.
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 solution ensures that the fluid flow is not disrupted by the biasing element, providing high sensitivity to small pressure differences and adjustable valve capacity with a single insert element, reducing manufacturing costs by using interchangeable insert elements.
Implementation Method 1
a biasing element configured to bias the pressure responsive valve element in a direction away from the pressure responsive valve seat
Implementation Method 2
a diaphragm which controls the position of the pressure responsive valve element with respect to the pressure responsive valve seat
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
A pressure controlled valve (100) comprising a pressure responsive valve seat (103), a pressure responsive valve element (104), a diaphragm (105), a biasing element (106) and an insert element (200). The insert element (200) interconnects the valve seat (103) and the biasing element (106), thereby contributing to a tension of the biasing element (106). The insert element (200) is at least partly arranged in a flow path through the pressure controlled valve (100), and a fluid flow can pass through the insert element (200) through one or more of its openings.