Dual-Actuator Fluid Pump With Inclined Vibration Flow Generation
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Solution Overview
Problem
Existing mechanical fluid pumps have moving parts that wear out, are complex, and require precise tolerances, leading to inefficiencies and reliability issues, especially when handling fluids with varying viscosities and pressures.
Innovation Solution
A fluid pump design utilizing two actuators with inclined vibration elements, powered by alternating current, that generate a fluid stream through synchronized movements without mechanical valves, creating a V-shaped volume to direct the fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mechanical pumping systems are used, then reliable fluid pumping can be achieved, but the system becomes complex with moving parts that wear out and require precision tolerances
Solution Approach 1:
The patent replaces traditional mechanical pumping systems with acoustic radiation pressure-based pumping. Instead of using mechanical moving parts like pistons, gears, or diaphragms, the invention uses acoustic waves to generate radiation pressure that moves fluid through the system. This substitution eliminates mechanical wear and reduces system complexity while maintaining reliable fluid pumping capability.
Solution Approach 2:
The patent utilizes acoustic vibrations to create radiation pressure for fluid pumping. Acoustic waves are generated at specific frequencies and amplitudes to produce sufficient radiation pressure to move fluid through channels and across membranes without mechanical contact. The vibration-based approach replaces traditional mechanical actuation while achieving reliable pumping action.
2Productivity
If mechanical tolerances are tightened to improve pumping efficiency, then system efficiency increases, but manufacturing complexity and cost increase
Solution Approach 1:
By replacing mechanical pumping components with acoustic radiation pressure mechanisms, the system eliminates the need for tight mechanical tolerances in moving parts. The acoustic field interacts with the fluid and flexible membranes without requiring precision mechanical clearances, thereby improving pumping efficiency while reducing manufacturing precision requirements.
Solution Approach 2:
The patent changes the fundamental operating parameters from mechanical force transmission to acoustic radiation pressure. By controlling acoustic frequency, amplitude, and wavelength, the system achieves efficient fluid pumping without relying on tight mechanical tolerances. The acoustic parameters can be adjusted to optimize pumping performance independent of mechanical manufacturing precision.
3Reliability
If acoustic radiation pressure is used to pump fluid, then mechanical wear is reduced, but the system requires complex acoustic control
Solution Approach 1:
The patent uses acoustic vibrations at specific resonant frequencies to generate radiation pressure for fluid pumping. By operating at resonant frequencies of the acoustic cavity and fluid system, the patent amplifies the radiation pressure effect without requiring excessive acoustic power or complex control mechanisms. This vibration-based approach reduces mechanical wear while simplifying the control system through resonance utilization.
Solution Approach 2:
The acoustic radiation pressure system serves multiple functions simultaneously: it pumps fluid, mixes fluids, and can be adjusted for different flow rates and pressures using the same basic mechanism. The flexible membrane structure responds to acoustic radiation pressure to perform both pumping and flow regulation functions, reducing the need for separate control components and simplifying the overall system.
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 design achieves efficient fluid pumping with reduced wear, noise, and complexity, generating a directed fluid stream with minimal mechanical stress on components.
Implementation Method 1
The first actuator and the second actuator are arranged opposite to each other so that a first movement direction of the first vibration element is inclined with respect to a second movement direction of the second vibration element. The controller is configured to control the power source so that the first vibration element moves towards the second actuator and the second vibration element moves towards the first actuator in a synchronous manner and thereby cyclically soaks in a fluid from the surroundings and ejects the fluid in a directed manner.
Data Source
AI summary
A fluid pump for generating a fluid stream includes a first actuator with a first vibration element, a second actuator with a second vibration element, and a power source supplying energy to the first and second actuators. The pump further includes a controller that is connected to the source and controls the source to vary the energy supplied to the first and second actuators. The first and second actuators are arranged opposite to each other so that a first movement direction of the first element is inclined with respect to a second movement direction of the second element. The controller controls the source so that the first element moves towards the second actuator and the second element moves towards the first actuator in a synchronous manner and thereby cyclically soaks in a fluid from the surroundings and ejects the fluid in a directed manner.