Complementary Fluidic Valve Piston for Low-Pressure Flow Control
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Solution Overview
Problem
Traditional fluidic valves require complex mechanical systems and high control pressures to perform various fluidic operations, limiting their efficiency and simplicity in applications such as artificial reality systems and industrial controls.
Innovation Solution
The development of complementary fluidic valves using a single rigid piston with upper and lower gate transmission elements, allowing for low-mechanical-complexity three-way valve operations with fractional movements and low-leakage control of outlet pressures, utilizing a large surface-area differential between controlling and restricting gate transmission elements to actuate against higher source fluid pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fluidic valves use complex mechanical systems, then they can perform various fluidic operations, but the mechanical complexity increases and control pressures become higher
Solution Approach 1:
The patent combines multiple valve functions (three-way valve operations) into a single integrated fluidic valve structure with one piston, eliminating the need for separate mechanical components for each function. This merging approach maintains operational versatility while reducing overall mechanical complexity
Solution Approach 2:
The fluidic valve is designed with universal functionality to perform multiple fluidic operations including three-way valve operations, pressure control, and flow regulation through a single device. The single piston mechanism can execute diverse fluidic functions by varying control pressures, eliminating the need for multiple specialized components
2Stress or pressure
If traditional fluidic valves use high control pressures, then they can actuate against higher source fluid pressures, but the control system becomes less efficient and more complex
Solution Approach 1:
The patent replaces traditional mechanical actuation systems with a fluidic-based control mechanism where control pressures directly manipulate the piston position through fluid pressure differential. This substitution eliminates complex mechanical linkages and reduces the energy required for actuation while maintaining the ability to resist high source fluid pressures
Solution Approach 2:
The valve utilizes changes in control pressure parameters to achieve different operational states. By varying the control pressure applied to the piston, the system can actuate against different source fluid pressures efficiently, replacing the need for consistently high control pressures with optimized pressure parameter management
3Adaptability or versatility
If traditional fluidic valves use complex mechanical systems, then they can provide various valve operations, but the leakage control becomes poorer
Solution Approach 1:
The fluidic valve employs self-sealing mechanisms where the fluid pressure itself maintains the sealing interfaces. The control fluid pressure that actuates the piston also ensures proper sealing at the gate transmission elements, eliminating the need for separate mechanical sealing systems and reducing leakage while maintaining operational versatility
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 efficient control of fluid flows with reduced mechanical complexity and lower control pressures, enhancing the performance of fluidic systems in applications like artificial reality and industrial controls by providing versatile functions such as inverting, adding pressures, and performing logical operations with minimal leakage.
Implementation Method 1
A fluidic valve may include a piston movable between a first position and a second position. Movement of the piston between the first position and the second position may actuate an upper gate transmission element and a lower gate transmission element
Data Source
AI summary
A fluidic valve may include an inlet, a control port, an additional control port, an outlet, a fluid channel configured to convey fluid from the inlet to the outlet, and a piston that includes (1) a restricting gate transmission element configured to block, when the piston is in a first position, the fluid channel and unblock, when the piston is in a second position, the fluid channel, (2) a controlling gate transmission element configured to interface with a control pressure from the control port that forces the piston towards the first position when applied to the controlling gate transmission element, and (3) an additional controlling gate transmission element configured to interface with an additional control pressure from the additional control port that forces the piston towards the second position when applied to the additional controlling gate transmission element. Various other related devices, systems, and methods are also disclosed.