Triboelectric Pulse Generator With Particle Flow Timing Control
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Solution Overview
Problem
Existing electrostatic frictional generators are unable to operate in a pulsed mode due to limitations in their design and materials used for charge induction.
Innovation Solution
An electrostatic frictional pulse generator is designed with a hollow cylinder made of dielectric material, featuring a gap between an electrode and current collector, and using screens and an axial fan to create a flow of air with substance particles along its surface, inducing opposite electric charges through friction, allowing for pulsed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a known electrostatic frictional generator with a channel and continuous flow system is used, then continuous charge generation is achieved, but pulsed operation capability is lost
Solution Approach 1:
The patent implements pulsed operation by periodically interrupting the air flow through the channel using a valve mechanism. The valve opens and closes at controlled intervals, allowing substance particles to pass through the channel only during specific time windows. This periodic flow interruption creates pulsed charge generation while maintaining the electrostatic friction mechanism, thus resolving the contradiction between continuous charge generation and pulsed operation capability
2Stability of the object's composition
If substance particles flow continuously through the channel, then steady charge induction occurs, but time control and pulse generation become impossible
Solution Approach 1:
The patent introduces a dynamic valve mechanism that can transition between open and closed states to control air flow timing. This dynamic control allows the system to switch between steady flow conditions (for stable charge induction) and interrupted flow conditions (for time control and pulse generation). The valve's ability to dynamically adjust flow timing resolves the contradiction between maintaining steady charge induction and achieving time control capability
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 generator effectively induces and manages electric charges to produce a pulsed output, enabling efficient energy generation and utilization.
Implementation Method 1
Material of the cylinder and material of the substance are selected so as to provide induction of opposite electric charges on the cylinder surface and on the substance particles due to friction of the substance particle flow against the cylinder surface
Implementation Method 2
An electrode and a current collector connected to a load are spaced with a gap and located along axis of the cylinder
Data Source
AI summary
Electrostatic frictional generator has a movable member in form of flow of substance particles. The generator is a hollow cylinder and with a flow of air with substance particles along the cylinder surface. Materials of the cylinder and the substance are selected to provide induction of opposite electric charges on cylinder surface and on the substance particles due to friction of the substance particle flow against the cylinder surface. An electrode and a current collector connected to a load are located along axis of the cylinder with a gap between them. Means for providing the flow of air with substance particles has reflecting screens located in upper and lower portions of the cylinder, configured to repel flows of air with substance particles, and an axial fan located under the upper reflecting screen, which takes in air and has blades of smaller diameter than inner diameter of the cylinder.