Air quantity metering apparatus
US4299125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Aug 12, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/69
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus is proposed for metering air quantity, particularly for metering induction air quantity in internal combustion engines, which has a temperature-dependent resistor disposed within an air stream, the temperature and/or resistance value of which is regulated in accordance with the air quantity, and with the control value providing a standard for induction air quantity. The temperature-dependent resistor is embodied as a heating wire and is stretched in a V-shape on a carrier member, whereby the temperature coefficient of the carrier member and that of the heating wire are compatible with each other. The stretching of the wire is accomplished with the aid of support elements which are fixed within the carrier member. The heating wire has each end affixed at a support point, while it is guided only loosely over an intermediate support element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.