Heteroscopic turbine
US6932564B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Oct 24, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/84
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A heteroscopic turbine with a Knudsen number of less than ten. In one embodiment, the heteroscopic turbine generates a flow from a gas. The turbine includes at least a moving surface and a plurality of turbine blades on or in said surface. Each of the blades has a height comparable to a mean free path distance that characterizes molecules in the gas, and the blades are spaced apart by a distance comparable to the mean free path distance. In operation, the surface moves such that the turbine blades pass through the gas at a speed comparable to the mean thermal velocity. In different embodiments, the turbine can perform filtering of molecules in the gas based on direction and/or speed (velocity). Also, techniques by which such a turbine operates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.