Pressure proving gas valve
US6571817B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Feb 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A pressure proving gas valve insures safe and efficient operation of a fuel-burning appliance by monitoring combustion air pressure and appropriately controlling the valve based upon this air pressure. An air pressure sensor is incorporated into a pressure proving valve housing itself thus providing integrated solution for the control of the combustion process. Consequently, when heat is called for, no fuel is provided to the combustion chamber unless appropriate combustion air pressure is sensed. Further, by monitoring the actual air pressure, additional control capability is provided. That is, a variable speed blower associated with the combustion apparatus can be controlled to provide very precise fuel to air mixtures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.