Virtual impactor device with reduced fouling
US7178380B2 · kind B2 · utility
16Cited by
20References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2005 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Aug 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/2208
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A virtual impactor device having reduced fouling includes injection ports within the separation zone to redirect particles that otherwise tend to impact the walls of the separation zone and produce fouling. The virtual impactor device preferably also includes an acceleration zone having concave and convex sections, which reduces fouling in that area. The virtual impactor device can be combined with various downstream components such as collectors, atomizers and various analytical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.