Dust collector and vacuum cleaner having the same
US10517453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2017 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jan 6, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C2009/004
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dust cleaner includes a primary cyclone part formed by an outer case and an inner case; and a secondary cyclone part including a set of cyclones. The secondary cyclone part includes a casing member mounted on the inner case and configured to form casings of the cyclones arranged around a hollow part; and vortex finders provided inside the casings and including guide vanes extending in a spiral direction and forming a revolving flow at outer circumferential surfaces. The casing member forms inlet flow paths of the cyclones, and each of the inlet flow paths is formed in a direction inclined with respect to a direction toward a center of each of the vortex finders to enable air to flow in a direction eccentric from the center of each of the vortex finders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.