Fuel-concentration detecting and controlling device for fuel cell
US7618585B2 · kind B2 · utility
0Cited by
9References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 17, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Nov 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/203332
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic wave passes different fuels of different concentrations with different velocities. The present invention provides a detecting and controlling device where, by a non-touching method, a velocity for an ultrasonic wave in a first fuel with a first fuel concentration is measured. The velocity obtained is taken for a comparison with another velocity for the same ultrasonic wave in a fuel with a default fuel concentration so that the first fuel concentration of the fuel can be under controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.