Cleaning nozzle for dust collector
US7918907B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/715
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A particulate filtration device having a cleaning assembly including the cleaning nozzle that accelerates gas toward the downstream surface of the filter media. The cleaning nozzle comprises an inlet portion defining a converging inlet path, a throat portion defining a narrowest portion of the nozzle, and an outlet portion defining a diverging path and ending at an exit edge. The inlet portion, throat portion, and outlet portion collectively create an inner surface of the nozzle. The nozzle defines a centerline and an exit half angle relative to the centerline, and the exit half angle is about ten degrees. The nozzle has a throat area at the throat portion and an exit area at the exit edge. A ratio of the exit area to the throat area is about 1.4. A portion of the inlet portion adjacent the throat portion has a throat inlet radius, and a portion of the outlet portion adjacent the throat portion has a throat outlet radius. The throat outlet radius is larger than the throat inlet radius. For example, a ratio of the throat outlet radius to the throat inlet radius is about 2.9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.