Cyclone separation device
US11612900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Feb 10, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C2005/136
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cyclone separation device includes a cyclone chamber for separating dirt from incoming air, a dirt collecting chamber arranged adjacent to the cyclone chamber for collecting dirt particles separated from air, and a dirt duct between the cyclone chamber and the dirt collecting chamber for allowing dirt particles to exit the cyclone chamber into the dirt collecting chamber. To reduce the generation of noise-generating air vortices, the dirt duct has an edge protruding into a direction at an angle to the dirt duct at an exit ridge of the cyclone chamber that is first encountered by the air rotating in the cyclone chamber. Preferably, the edge is formed by a tangential extension of a wall of the cyclone chamber. A vacuum cleaner advantageously includes such a cyclone separation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.