Pressure reduction apparatus and method
US7089747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Aug 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0016
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure reduction apparatus is disclosed. Air at high pressure and temperature may be drawn from a source such as a bleed valve of a gas turbine engine that supplies the air to an airplane interior. The air is passed to a pressure reduction vessel. The vessel has sufficient volume such that the high pressure air, upon entering the vessel, will reduce in temperature and pressure. The pressure reduction apparatus allows the air to depressurize and drop in temperature to near ambient conditions. Upon exiting the pressure reduction apparatus, the air is at a temperature and pressure sufficient to allow the air to be sampled and analyzed by conventional equipment used for testing for airborne impurities such as semivolatile compounds ad particulates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.