Magnetically biased magnetopropant and pump
OwnerCharles Saron Knoblochinventor
Life of this patent
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Abstract
Provided is a system and method for enabling pressure or acoustic waves to induce magnetostrictive volume or shape change, providing greater control over magnetopropants. A coating material and the spacing between a magnetopropant and a magnetic particle are selected such that a certain pressure causes change in the relative distance of magnetopropant and magnetic particle, thereby changing the amount of magnetostriction. The coating material, magnetopropant, and magnetic particle are assembled to form a pressure sensitive magnetopropant. Given this structure, changes in pressure will cause a fluctuation of the amount of magnetostriction. In a pore space environment, this causes a change in pore space with resulting change in permeability and, hence, changes in fluid flow.
Claims14
An apparatus for absorbing acoustic energy, comprising:
- a magnetostrictive material;
- and
- a magnetic substance positioned and arranged in movable proximity to the magnetostrictive material;
- and
- wherein the magnetostrictive material is actuated upon introduction of a mechanical vibrational force upon the magnetic substance;
- and
- wherein the magnetostrictive material and the magnetic substance are embedded in a porous medium, the magnetostrictive material and the magnetic substance positioned and arranged to change the pore volume of the porous medium by exerting force on the medium upon actuation of the magnetostrictive material by the magnetic substance;
- and
- wherein the magnetostrictive material and the magnetic substance are positioned and arranged in the porous medium to absorb acoustic energy.
Dependencies are inferred from the claim text.