Method and apparatus for monitoring pressure sensors
US4915613A · kind A · utility
31Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1989 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7725
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method and apparatus monitor fuel pressure in a heating system where a controller controls actuation of fuel valves. A fuel pressure limit signal is provided to the controller for determining if the fuel pressure crosses predetermined thresholds. In order to avoid nuisance shut-downs, the fuel pressure limit signal is ignored by the controller for a predetermined time interval after the controller has actuated a fuel valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.