Air flow detector for engine control unit
US5415029A · kind A · utility
12Cited by
18References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1993 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Mar 18, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An exothermic resistor type air flow detector according to the invention is compact and requires no special radiation structure. A control circuit comprised of a transistor T and a differential amplifier are formed with an exothermal resistor Rh on an insulated substrate 2, which is placed in an air passage in which air current is to be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.