Kinetic energy atom-powered engine
View Patent ↗A device for converting the kinetic energy of molecules into useful work includes an actuator configured to move within a fluid or gas due to collisions with the molecules of the fluid or gas. The actuator has dimensions that subject it to the Brownian motion of the surrounding molecules. The actuator utilizes objects having multiple surfaces where the different surfaces result in differing coefficients of restitution. The Brownian motion of surrounding molecules produce molecular impacts with the surfaces. Each surface then experiences relative differences in transferred energy from the kinetic collisions. The sum effect of the collisions produces net velocity in a desired direction. The controlled motion can be utilized in a variety of manners to perform work, such as generating electricity or transporting materials.
1. A device for converting kinetic energy of molecules in a fluid into useful work, the device comprising:
a microelectromechanical systems (MEMS) scale or smaller housing comprising walls that define a chamber enclosing the fluid, the walls being made of a heat-transferring material and having a thickness that allows heat to be transferred through the walls into the chamber; and
at least one actuator that is subject to Brownian motion of the molecules in the fluid, the actuator being contained in the chamber and immersed in the fluid, the actuator configured to transport a magnetic material that cooperates with a component external to the chamber to induce a magnetic flux change when the actuator is in motion; and the actuator comprising:
a leading face having a first coefficient of restitution with the molecules of the fluid; and
a trailing face disposed at an angle of more than 180 degrees from the leading face, the leading face and the trailing face being subjected to collisions with the molecules, the trailing face having a second coefficient of restitution with the molecules of the fluid, the second coefficient of restitution being lower than the first coefficient of restitution.
2. The device of claim 1 , wherein the chamber has one or both of a width and a depth that constrains the movement of the actuator.
3. The device of claim 2 , wherein the chamber comprises a closed loop, and wherein the actuator is constrained to moving around the loop.
4. The device of claim 3 , wherein the loop is circular.
5. The device of claim 3 , wherein the actuator has a shape that conforms to a shape of the chamber.
6. The device of claim 1 , wherein the actuator comprises a blade including one or both of the leading face and the trailing face, the blade being configured to rotate around a center of the actuator.
7. The device of claim 6 , wherein the actuator has exactly one blade.
8. The device of claim 6 , wherein the leading face is non-parallel to the trailing face, such that the blade ends in a point.
9. The device of claim 6 , further comprising an axle disposed at the center of the actuator, the blade being attached to the axle at a proximal end of the blade, being proximal to the axle, wherein the axle rotates when the blade rotates.
10. The device of claim 6 , further comprising an axle disposed at the center of the actuator, the blade being attached to the axle at a proximal end of the blade, being proximal to the axle, wherein the axle remains stationary when the blade rotates.
11. The device of claim 1 , wherein the actuator comprises a plurality of blades, a first blade of the plurality of blades including the leading face and a second blade of the plurality of blades including the trailing face, the plurality of blades being configured to rotate around a center of the actuator.
12. The device of claim 1 , further comprising a silicon substrate, the housing comprising a pit etched into the silicon substrate and defining a portion of the chamber.
13. The device of claim 1 , further comprising a mechanism for producing an electric current from the useful work.
14. An apparatus for converting kinetic energy of molecules in a fluid into useful work, the apparatus comprising a plurality of a device as recited in claim 1 connected together to form an array that generates the useful work on a macro scale.
15. The device of claim 1 , wherein the actuator comprises one or more blades configured to rotate around a center of the actuator, a first blade of the one or more blades incorporating the leading face and the trailing face and comprising the magnetic material.
16. The device of claim 15 , wherein the one or more blades comprise the first blade and a second blade offset 180 degrees from the first blade, the second blade comprising a leading edge having the first coefficient of restitution and a trailing edge having the second coefficient of restitution, a sum of a first mass of the first blade and a second mass of the magnetic material equaling a third mass, the second blade having the third mass.
17. A device for converting kinetic energy of molecules in a fluid into useful work, the device comprising:
a microelectromechanical systems (MEMS) scale or smaller housing comprising walls that define a chamber enclosing the fluid, the walls being made of a heat-transferring material and having a thickness that allows heat to be transferred through the walls into the chamber;
at least one actuator that is subject to Brownian motion of the molecules in the fluid, the actuator being contained in the chamber and immersed in the fluid, the actuator configured to transport a magnetic material that cooperates with a component external to the chamber in induce a magnetic flux change when the actuator is in motion; and the actuator comprising:
an axle disposed at the center of the actuator; and
a blade being attached to the axle at a proximal end of the blade and configured to rotate around the axle, the axle remaining stationary when the blade rotates, the blade comprising:
a leading face having a first coefficient of restitution with the molecules of the fluid; and
a trailing face disposed at an angle of more than 180 degrees from the leading face, the leading face and the trailing face being subjected to collisions with the molecules, the trailing face having a second coefficient of restitution with the molecules of the fluid, the second coefficient of restitution being lower than the first coefficient of restitution.
18. A device for converting kinetic energy of molecules in a fluid into useful work, the device comprising:
a microelectromechanical systems (MEMS) scale or smaller housing comprising walls that define a chamber enclosing the fluid, the walls being made of a heat-transferring material and having a thickness that allows heat to be transferred through the walls into the chamber;
a first magnetic material disposed externally to the chamber; and
at least one actuator that is subject to Brownian motion of the molecules in the fluid, the actuator being contained in the chamber and immersed in the fluid, the actuator configured to transport a second magnetic material within the chamber into cooperation with the first magnetic material to induce a magnetic flux change when the actuator is in motion; and the actuator comprising:
a leading face having a first coefficient of restitution with the molecules of the fluid; and
a trailing face disposed at an angle of more than 180 degrees from the leading face, the leading face and the trailing face being subjected to collisions with the molecules, the trailing face having a second coefficient of restitution with the molecules of the fluid, the second coefficient of restitution being lower than the first coefficient of restitution.
19. The device of claim 18 , comprising an external component incorporating the first magnetic material and generating an electric current in response to the magnetic flux change.
20. The device of claim 19 , wherein the external component is an inductor.