Axial fan
US11988225B2 · kind B2 · utility
0Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2023 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Jun 29, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/384
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Provided is an axial fan including multiple forward-swept blades. An angle of advance of a trailing edge of the forward-swept blade is larger than an angle of advance of a leading edge of the forward-swept blade. An outer portion of the trailing edge, being positioned further in an outer periphery of the trailing edge than an intermediate portion of the trailing edge with respect to a rotary shaft of the axial fan, advances as the trailing edge advances radially outward of a ventilation channel of the axial fan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.