Electric blower with an axial fan and motor for sweeping and cleaning
US11248620B2 · kind B2 · utility
6Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2019 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Oct 12, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/384
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electric blower (10) is disclosed as including a brushless motor (16), and an axial fan (18, 18C) driven by the motor, the motor being operable at a first speed of rotation of 15,000 revolutions per minute (rpm) and a second speed of rotation of 18,000 rpm, the axial fan including a hub (34C) and a plurality of fan blades (36C) engaged with the hub, the hub having a hub diameter (ϕH), the axial fan having an outer diameter (ϕT), and being between substantially 0.6 and substantially 0.65.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.