Capacitance-type fuel sensor for sensing methanol in methanol-mixed fuel
US5196801A · kind A · utility
11Cited by
11References
8Claims
0Family size
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Inventors
Key dates
| Filing date | Dec 15, 1989 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Dec 15, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2852
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fuel sensor for sensing methanol in methanol-mixed fuel, which comprises a structure which defines a fuel passage through which the mixed fuel flows, an electrode assembly including a pair of probe portions which are exposed to the fuel passage, and an electric circuit causing the paired probe portions to exhibit positive and negative characteristics respectively in the mixed fuel. At least the positive probe portion is intimately covered with an electrically insulating film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.