Segmented-Capacitor Propulsion System for Reactionless Spacecraft Thrust

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Solution Overview

Problem

Current space propulsion systems rely on expelling propellant, limiting their specific impulse and increasing the mass and cost of space missions, while traditional interpretations of Newton's Third Law excluded the possibility of reactionless propulsion using electromagnetic fields.

Innovation Solution

An electromagnetic spacecraft propulsion system utilizing a segmented capacitor cathode, an anode with a dielectric, and electromagnetic coils, where the charged cathode segments are rotated through electric fields to produce a unidirectional Lorentz Force, leveraging the Poynting Vector to carry reaction momentum without expelling propellant.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If traditional propellant-based propulsion systems are used, then thrust is produced, but propellant mass and tankage increase mission cost and reduce specific impulse

Engineering Contradiction:
Improvepropellant massVSAvoidthrust production
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The invention extracts and eliminates the propellant component from the propulsion system entirely. By using electromagnetic fields to directly accelerate charged particles (electrons and ions) in the spacecraft's own electromagnetic field, the system produces thrust without requiring external propellant mass or tankage, achieving effectively infinite specific impulse while maintaining thrust production capability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention replaces the traditional mechanical/chemical propulsion system (engines burning propellant) with an electromagnetic propulsion system. Electromagnetic fields are used to generate and control charged particle beams, substituting chemical combustion and mechanical thrust generation with field-based particle acceleration, thereby eliminating propellant mass requirements

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

2Adaptability or versatility

If Newton's Third Law is strictly applied to exclude reactionless propulsion, then momentum conservation is maintained, but propellantless electromagnetic propulsion is deemed impossible

Engineering Contradiction:
Improvepropulsion method flexibilityVSAvoidmomentum conservation compliance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The invention introduces the electromagnetic field as an intermediary that carries momentum between the spacecraft and the external environment. The Poynting vector represents the momentum flux in the electromagnetic field, serving as the mediator that allows the spacecraft to gain momentum without expelling physical propellant, while the field itself carries the reaction momentum

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the fundamental parameter of momentum transfer from mechanical mass ejection to electromagnetic field momentum flux. By utilizing the Poynting vector (which depends on electric and magnetic field parameters) rather than propellant mass flow rate, the system achieves propulsion through a different physical parameter regime that is not constrained by traditional Newtonian reaction mass requirements

Inventive Principle:
Principle #35Parameter changes

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

This system achieves continuously variable thrust with significantly reduced power consumption, overcoming the limitations of previous propellantless propulsion devices by exploiting modern electrodynamics principles, enabling efficient and cost-effective space travel.

Implementation Method 1

the charged cathode segments are rotated through electric fields from the electromagnetic coils in such a manner as to produce a unidirectional Lorentz Force on the coil-cathode system

Methodology Applied
Scientific EffectLorentz Force: Lorentz Force

Implementation Method 2

reaction momentum is carried away by the Poynting Vector fields in conformity with the currently understood principles of modern physics

Methodology Applied
Scientific EffectPoynting Vector:

Data Source

PatentUS10006446B2Electromagnetic segmented-capacitor propulsion system
Publication Date: 2018.06.26 PURVIS JAMES WAYNE
  • US10006446B2 patent drawing
  • US10006446B2 patent drawing
  • US10006446B2 patent drawing

AI summary

The present invention is a spacecraft electromagnetic propulsion system which provides thrust without expelling propellant. The system includes a multi-element capacitor with rotating segmented cathodes, and electromagnetic coils for generating magnetic fields. Interactions between the electromagnetic fields and the rotating charged capacitor elements produce unidirectional forces, while reaction momentum is carried away by the Poynting Vector fields in conformity with the currently understood principles of modern physics.