Premixing device and combustion device
US11143399B2 · kind B2 · utility
0Cited by
18References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/35
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The premixing device includes a first and a second venturi having a pressure reducing portion for air, and a gas supply passage for supplying fuel gas to the venturis, and generates air-fuel mixture by mixing fuel gas with air flowing in the venturi by using a fan and supplies the air-fuel mixture to a burner. A first and a second nozzles for reducing pressure of fuel gas are disposed in the gas supply passage, and the first and the second nozzles are formed in the same nozzle shape as the pressure reducing portion of the first and the second venturis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.