Inductive Supercapacitor Power for Guided Projectile Arming

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Solution Overview

Problem

Guided rockets relying on thermal batteries for guidance face delays in readiness due to activation processes, limiting target acquisition time and requiring shorter storage life than desired, as they are only rated for ten years while applications exceed 15 years.

Innovation Solution

An inductive power transfer system using an induction transformer with a supercapacitor as the power source, allowing for rapid arming and extended storage life, where the supercapacitor is charged through induction and powers the projectile, enabling faster targeting and data transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If thermal batteries are used for guided rocket power supply, then leakage is minimized over lifetime, but arming time is delayed and storage life is limited to ten years

Engineering Contradiction:
Improvebattery readinessVSAvoidarming time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The battery components (electrolyte and electrodes) are prepared in advance in separate compartments, with the electrolyte pre-filled in the battery housing and the electrodes pre-installed in the rocket. The battery is activated immediately before launch by breaking the seal between electrolyte and electrodes, eliminating activation delay during actual use while maintaining long-term storage stability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The battery system is divided into separate compartments: the electrolyte is stored separately from the electrodes in the battery housing, while the electrodes are installed in the rocket. This segmentation allows the components to be prepared in advance without premature activation, reducing arming time while maintaining reliability.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If thermal batteries are used for guided rocket power supply, then battery stability is maintained, but storage life is limited to ten years

Engineering Contradiction:
Improvebattery stabilityVSAvoidstorage life
Core Design Contradiction:
Stability of the object's compositionVSDuration of action of stationary object

Solution Approach 1:

The battery components are prepared in advance with the electrolyte pre-filled in the battery housing and electrodes pre-installed in the rocket, but the chemical reaction is prevented until launch by maintaining physical separation. This allows long-term storage without degradation while ensuring immediate activation when needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A seal or barrier acts as an intermediary between the electrolyte and electrodes, preventing premature chemical reaction during storage while allowing easy activation when needed. This intermediary maintains component stability during long-term storage (beyond 10 years) while enabling rapid deployment.

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 reduces arming time to milliseconds, extends the shelf life of missiles beyond traditional thermal batteries, and enhances the lethality and protection of the shooter by enabling quicker targeting and data transfer.

Implementation Method 1

An inductive power transfer system using an induction transformer with a supercapacitor as the power source, allowing for rapid arming and extended storage life, where the supercapacitor is charged through induction

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS7946209B2Launcher for a projectile having a supercapacitor power supply
Publication Date: 2011.05.24 RAYTHEON CO
  • US7946209B2 patent drawing
  • US7946209B2 patent drawing
  • US7946209B2 patent drawing

AI summary

The present invention generally concerns systems and methods for supplying electric power using supercapacitors; and more particularly, representative and exemplary embodiments of the present invention generally relate to improved methods and systems for supplying power to a guided rocket.