Techniques for movement through gas or liquid or liquid without a velocity boundary layer

• US 20070243059A1
• Filed: 09/20/2005
• Published: 10/18/2007
• Est. Priority Date: 12/19/2002
• Status: Abandoned Application

• Current Assignee: Forced Physics LLC
• Original Assignee: Forced Physics LLC
• Inventors: Davis, Scott
• Application Number:
  US11/231,536
• Publication Number:
  US 20070243059A1
• Time in Patent Office: Days
• US Class Current: 415/90
• CPC Class Codes: B82Y 15/00 Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
• CPC Class Codes: F01D 1/36 using fluid friction
• CPC Class Codes: F04D 19/042 Turbomolecular vacuum pumps
• CPC Class Codes: F04D 29/582 specially adapted for elastic fluid pumps
• CPC Class Codes: F04D 33/00 Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type F04D35/00 takes precedence; hand-held fans A45B
• CPC Class Codes: F05D 2250/82 Micromachines
• CPC Class Codes: F05D 2250/84 Nanomachines
• CPC Class Codes: F28F 13/00 Arrangements for modifying heat-transfer, e.g. increasing, decreasing F28F1/00 - F28F11/00 take precedence
• CPC Class Codes: F28F 13/02 by influencing fluid boundary boundary-layer control in general F15D

Abstract

A technique of generating a flow from a gas. The technique includes the steps of selecting molecules from the gas on a nanoscopic or microscopic scale, and generating the flow from the selected molecules. The gas can be air. In one embodiment, the molecules are selected based on the direction of movement of the molecules. In another embodiment, the molecules are selected based on the velocities (i.e., direction and speed) of the molecules. Also, devices that implement the technique.

Claims

1-29. -29. (canceled)

30. A method of moving a surface through a gas or liquid, comprising:

disposing nanoscopic or microscopic blades or edges on or in the surface; and

moving the surface through the gas or liquid;

whereby the gas or liquid at the surface lacks a velocity boundary layer.

31. A method as in claim 30, wherein the surface moves through the gas or liquid at a velocity comparable to a mean thermal velocity of the molecules in the gas or liquid.

32. A method as in claim 30, wherein the gas or liquid is air.

33. A method as in claim 30, wherein the surface is a rotating structure.

34. A method as in claim 30, wherein the surface moves linearly through the gas or liquid.

35. A method as in claim 30, wherein the blades or edges are formed from microscopic or nanoscopic holes in the surface.

36. A method as in claim 30, wherein the blades or edges are funnel shaped.

37. A method as in claim 30, wherein baffles separate groups of the blades.

38. A device, comprising:

a surface; and

nanoscopic or microscopic blades or edges on or in the surface;

wherein when the surface moves through a gas or liquid, the gas or liquid at the surface lacks a velocity boundary layer.

39. A device as in claim 38, wherein the surface moves through the gas or liquid at a velocity comparable to a mean thermal velocity of the molecules in the gas or liquid.

40. A device as in claim 38, wherein the gas or liquid is air.

41. A device as in claim 38, wherein the surface is a rotating structure.

42. A device as in claim 38, wherein the surface moves linearly through the gas or liquid.

43. A device as in claim 38, wherein the blades or edges are formed from microscopic or nanoscopic holes in the surface.

44. A device as in claim 38, wherein the blades or edges are funnel shaped.

45. A device as in claim 38, wherein baffles separate groups of the blades.