Fan blade
US12188481B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Dec 27, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/684
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a fan blade, including a wheel hub, a bottom plate and a plurality of blades. The plurality of blades encircle an outer peripheral side of the wheel hub at an interval; a separation distance is kept between each of the blades and the wheel hub; the wheel hub, the bottom plate and the blades enclose an annular groove; an air guide groove is formed between two adjacent blades; a first air inlet is formed in a side, away from the bottom plate, of the air guide groove; a second air inlet connected to the annular groove is formed in a side, close to the wheel hub, of the air guide groove; and an air outlet is formed in a side, away from the wheel hub, of the air guide groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.