Method of fabricating a spherical cavitation chamber
US7103956B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2004 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Mar 4, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49998
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of fabricating a spherical cavitation chamber. Depending upon the chamber's composition and wall thickness, chambers fabricated with the disclosed techniques can be used with either low or high pressure systems. During chamber fabrication, initially two spherical half portions are fabricated and then the two half portions are joined together to form the desired cavitation chamber. During the fabrication of each chamber half, the interior spherical surface is completed first and then the outer spherical surface. Prior to joining the two spherical cavitation chamber halves, the surfaces to be mated are finished, preferably to a surface flatness of at least ±0.01 inches. Brazing is used to join the chamber halves together. The brazing material is preferably in the form of a ring-shaped sheet with outside and inside diameters of approximately the same size as the cavitation sphere's outside and inside diameters. Preferably the brazing operation is performed under vacuum conditions. During brazing, preferably force is applied to the two half spheres in order to compress the brazing material and achieve a strong bond. In order to insure that the inner surface of the completed ca…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.