Air mass meter
US6170327A · kind A · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/699
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The air mass meter a heating element and, downstream of the heating element, a disturbance body disposed in a duct element. The heating element and the disturbance body are geometrically shaped and arranged in the duct element such that the heating element is surrounded by a laminar flow at all the flow velocities of the air in the duct element which are operationally relevant to an internal combustion engine. The heat transmitted to the heating element is consequently determined only by the mass of the air flowing past and error-inducing flow disturbances are avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.