Method and apparatus for monitoring parameters of an easily ignited gas
US7109855B2 · kind B2 · utility
3Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2003 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Aug 16, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a method and apparatus for monitoring a parameter, such as a concentration level, of an easily ignited gas, such as hydrogen, includes a wake-up device that is connected to a current/voltage supply, and can switch the monitoring unit from a state of rest into an active state after an adjustable time interval. The device according to the invention can be used in a fuel cell system or in a vehicle. Furthermore, the invention relates to a method for monitoring the concentration of an easily ignited gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.