Electrically controlled solid propellant

a solid propellant, electric control technology, applied in the direction of pressure gas generation, explosives, weapons, etc., can solve the problems of not extinguishing as quickly, propellants providing none of their own energy, and prior art propellants suffering from two significant drawbacks, so as to achieve the effect of ensuring regulation

Inactive Publication Date: 2006-01-19
DIGITAL SOLID STATE PROPULSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a new type of propellant that can be ignited by electricity and extinguished by removing electricity. The rate at which it burns can be controlled by adjusting the amount of voltage or current applied. This propellant is suitable for use in satellite control rockets and car airbags. It can also be re-ignited if needed. Overall, this invention provides a way to control the ignition, combustion, and extinguishment of a solid solution propellant in a reliable and responsive manner.

Problems solved by technology

The technical problem addressed in this patent is developing a better electrically controlled propellant composition that doesn't melt or deform during combustion, avoids excessive moisture pickup, and has increased chemical energy content and combustion rates compared to previous versions. Additionally, there is a desire to create a more precise and reliable method for igniting and extinguishing the propellant multiple cycles.

Method used

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Embodiment Construction

[0039] In general terms, the present invention comprises an ionomer oxidizer polymer binder, an oxidizer mix including at least one oxidizer salt and at least one eutectic material which maintains the oxidizer mix in liquid form at the process temperature, and a mobile phase comprising at least one ionic liquid. The present invention also includes certain changes to the general composition, including: (i) the use of a higher molecular weight (above 100,000) polymer, (ii) the controlled cross-linking of the polymer, (iii) the use of a moisture barrier coating, (iv) the addition of an energetic material such as Chromium III, and (v) the addition of low molecular weight polyethylene glycol polymer.

[0040] In the preferred embodiments, the ionomer oxidizer binder is polyvinylammonium nitrate (PVAN). The oxidizer salt preferably comprises ammonium nitrate (AN). The eutectic additive for the oxidizer salt may comprise a variety of salts or mixtures thereof, and preferably comprises an ene...

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Abstract

An electrically controlled propellant comprising an ionomer oxidizer polymer binder, an oxidizer mix including at least one oxidizer salt and at least one eutectic material, and a mobile phase comprising at least one ionic liquid is disclosed. The PVAN polymer in the present invention may be of medium (>100,000) to high molecular weight (<1,000,000). The present invention also may include the controlled cross-linking of the polymer using epoxy resins, the use of moisture barrier coating, the addition of an energetic combustion additives such as Chromium III and polyethylene glycol polymer.

Description

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Claims

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Application Information

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Owner DIGITAL SOLID STATE PROPULSION
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