Method and apparatus for evaluating condensation amount
US4864844A · kind A · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1986 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N7/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to evaluate the condensation amount in a jet engine intake duct, for calibrating the engine, apparatus are provided which induce a high speed flow of air through a duct. The duct is designed so that the air velocity within it very gradually increases along it until a choked (sonic) condition is reached. At or around sonic conditions static pressure is very responsive to changes in flow due to condensation. Thus by first obtaining a pressure profile along the duct under non-condensing conditions and then comparing this with a pressure profile under condensing conditions a condensation amount can be computed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.