Fluid mixing device having a conical inlet and a noncircular outlet
US4957242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1988 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Apr 12, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2025/913
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a fluid mixing device in which a jet of first luid is passed through a nozzle having a conical inlet section and a noncircular, elongated, exit section. The jet of first fluid mixes with a second fluid located downstream of the device. In operation, the intersection of the conical and elongated sections produces axial rotation in the first fluid. Intense, three-dimensional, axial and circumferential vortical structures are created. These structures then interact with the high modes of azimuthal instabilities that are common to the elongated configuration. The jet of first fluid evolves into two secondary jets, generating a double shear layer inside the flow. Highly efficient mixing of the fluids, in both the outside and inside (core) segments of the jet, is achieved within a relatively small mixing space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.