System for controlling air/fuel ratio in a gas flow containing gaseous fuel
US7871263B2 · kind B2 · utility
0Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2006 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Jan 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system for controlling air/fuel ratio in an air/fuel mixture supplied to a premix burner for gaseous fuels includes a blower (310) for inducting and pressurising combustion air, a Venturi-pipe (330) for governing a rate of gas to be mixed into the combustion air, and a pressure regulator (230) interconnecting a source of gaseous fuel to a supply point in the Venturi pipe (330). A preheated reaction chamber (500) and a lambda sond (620) are connected to a controller (350) controlling an amount of air bypassing said Venturi-pipe (330).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.