Surface stabilized fully premixed gas premix burner for burning hydrogen gas, and method for starting such burner
US12305856B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2020 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Dec 6, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2239/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Method for starting a burner wherein a premixed gas comprising a combustible gas and air is supplied, wherein the combustible gas comprises at least 50% by volume of hydrogen. The method comprises the following steps: during a start-up phase: supplying premixed gas having a first lambda-value to the burner surface, wherein the first lambda-value is at least 1.85, and igniting the supplied premixed gas having the first lambda-value using an ignition source. During an operation phase after the premixed gas has been ignited: supplying premixed gas having a second lambda-value to the burner surface, wherein the first lambda-value is larger than the second lambda-value. Independent claims for a burner and a heating appliance are included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.