Variable Pressure Device Multi-Stage Control via Switch Valve
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Solution Overview
Problem
Conventional variable pressure devices can only set pressure in two stages, which limits their application and complexity, and there is a need for a device that can change pressure in three or more stages with a simpler mechanism.
Innovation Solution
A variable pressure device comprising a channel constituting unit with a first regulator and multiple second regulators in series and parallel, connected by a switch valve mechanism controlled by an ECU, allowing for varying pressure settings by adjusting the combination of regulators, enabling pressure control in multiple stages with a more compact and simpler mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional pressure control valve is used, then pressure can be controlled in two stages, but the device cannot achieve three or more pressure stages with sufficient simplicity
Solution Approach 1:
The pressure control function is segmented into multiple independent second regulators (R21-R24) with different opening areas, each connected to a common first regulator through separate switchable paths. This segmentation allows selective combination of regulators to achieve multiple pressure stages (1-15 times unit opening area) without requiring a completely new valve mechanism for each stage.
Solution Approach 2:
The switch valve mechanism dynamically reconfigures the circuit by selectively connecting different second regulators to the first regulator based on control signals. This dynamic switching capability enables the system to adapt between 15 different pressure stages using the same physical components, achieving versatility without proportional increases in mechanism complexity.
2Adaptability or versatility
If multiple regulators are arranged in series and parallel with switch valve mechanism, then pressure control in multiple stages is achieved, but the mechanism becomes more complex
Solution Approach 1:
The first regulator serves as a universal component that works in combination with any of the second regulators (R21-R24). Each second regulator is designed with a standardized interface that connects to the common first regulator through the switch valve mechanism, allowing the same first regulator to fulfill multiple functions across different pressure stages.
Solution Approach 2:
Multiple second regulators with different opening areas are merged into a single可控 system through the switch valve mechanism. Instead of requiring separate complete valve assemblies for each pressure stage, the patent combines multiple regulators in parallel, where the switch valve mechanism selectively activates the appropriate combination based on the desired pressure stage.
3Device complexity
If a simpler mechanism is used for multi-stage pressure control, then device compactness is improved, but pressure control linearity and ease may be compromised
Solution Approach 1:
Each second regulator is designed with a specific opening area that corresponds to a particular pressure range or increment. The switch valve mechanism selectively activates regulators based on the desired pressure stage, ensuring that the appropriate local quality (opening area) is applied for each specific pressure control requirement, maintaining linearity and ease of operation.
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
Enables pressure control in multiple stages with improved ease and linearity, achieving a range of pressures from 1 to 15 times the unit opening area, enhancing the device's compactness and operational simplicity compared to traditional configurations.
Implementation Method 1
a switch valve mechanism, and a channel constituting unit. The channel constituting unit constitutes a channel including a first regulator and second regulators that are arranged in series to the first regulator and are in parallel to one another
Implementation Method 2
Opening areas of the second regulators are different from one another... enabling pressure control in multiple stages with a more compact and simpler mechanism
Data Source
AI summary
According to an embodiment, a variable pressure device includes a channel constituting unit and a switch valve mechanism. The channel constituting unit constitutes a channel including a first regulator and second regulators that are arranged in series to the first regulator and are in parallel to one another. The switch valve mechanism selectively connects the second regulators to the first regulator. Opening areas of the second regulators are different from one another.