Plasma Compression Control With Layered Pressure Pulses

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Solution Overview

Problem

Existing plasma compression systems, such as those using liquid metal liners and mechanical pistons, face challenges with high energy consumption and structural forces that limit their scalability and efficiency in achieving fusion conditions.

Innovation Solution

A plasma compression system with a rotating core and multiple layers of compression drivers, each generating individual pressure pulses with varying shape, timing, and magnitude, to collectively form a combined pressure pulse that implosively compresses plasma, using a controller to manage these parameters and minimize energy input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If conventional liquid metal liner systems are used, then plasma compression can be achieved, but high energy consumption and large rotational mass create excessive structural forces

Engineering Contradiction:
Improveenergy consumptionVSAvoidstructural forces
Core Design Contradiction:
Use of energy by moving objectVSForce

Solution Approach 1:

The compression system is divided into multiple independent compression drivers arranged around the plasma chamber. Each driver operates independently to generate pressure pulses, replacing the single large rotational mass approach with distributed smaller components that reduce overall structural forces while maintaining compression effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces the mechanical rotational liquid metal liner system with a system of compression drivers that generate pressure pulses through controlled expansion. This substitution eliminates the need for large rotational masses and reduces structural forces while achieving the same plasma compression function.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If a single compression driver is used, then the system is simpler, but the plasma compression efficiency and control precision are insufficient

Engineering Contradiction:
Improvesystem complexityVSAvoidcompression efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The compression system is divided into multiple independent compression drivers arranged around the plasma chamber. Each driver operates independently to generate pressure pulses, replacing the single large rotational mass approach with distributed smaller components that reduce overall structural forces while maintaining compression effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple compression drivers are combined to work together on a single plasma charge. The drivers are synchronized to generate pressure pulses that collectively compress the plasma efficiently, achieving better compression efficiency than a single driver while the modular design keeps the system manageable.

Inventive Principle:
Principle #5Merging (Combining)

3Force

If compression drivers are positioned far from the plasma chamber, then structural forces are reduced, but the pressure pulse trajectory control precision deteriorates

Engineering Contradiction:
Improvestructural forcesVSAvoidtrajectory control precision
Core Design Contradiction:
ForceVSManufacturing precision

Solution Approach 1:

A reflective surface or acoustic lens is introduced as an intermediary between the compression driver and the plasma chamber. This intermediary element focuses and shapes the pressure pulse trajectory, allowing the driver to be positioned at optimal locations for reduced structural forces while maintaining precise control over the compression path through the intermediary's focusing action.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 system efficiently compresses plasma with lower energy input, reducing structural stresses and enabling more effective fusion conditions by controlling the implosion trajectory of the liquid liner, potentially enhancing energy output.

Implementation Method 1

Each compression driver layer is operable to generate an individual pressure pulse in the compression fluid

Methodology Applied
Scientific EffectPressure pulse: Pressure Increase

Implementation Method 2

the combined pressure pulse actuates the implosion drivers to implode the liquid liner and compresses a plasma

Methodology Applied
Scientific EffectImplosion: Compression

Implementation Method 3

rotating a liquid medium contained within the rotating core about a rotational axis to form a liquid liner

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP4248461B1Method and apparatus for controlling plasma compression
Publication Date: 2025.10.01 GENERAL FUSION INC
  • EP4248461B1 patent drawingFigure 1
  • EP4248461B1 patent drawingFigure 2A
  • EP4248461B1 patent drawingFigure 2B

AI summary

A control system manipulates one or more of the shape, timing, and magnitude of a pressure pulse ("plasma pulse trajectory") generated by a plasma compression system to implode a liquid liner surrounding a cavity containing plasma, thereby compressing the plasma. The liquid liner and cavity are created by rotating a liquid medium in a vessel. Compression drivers extend perpendicularly around the liquid medium's rotational axis. Multiple layers of compression drivers are stacked in an axial direction parallel to the rotational axis to form multiple pressure zones extending along the rotational axis. The control system separately controls each pressure zone, or groups of pressure zones, to generate individual pressure pulses each having a different pressure pulse trajectory in each pressure zone. The multiple individual pressure pulses collectively form a combined pressure pulse having a pressure pulse trajectory that varies along the rotational axis.