Method of detecting leaks of fluoroolefin compositions and sensors used therefor
US8070355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Dec 28, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are a method of detecting a leak of fluoroolefin compositions and sensors used therefor. In particular, the method is particularly useful for detecting a leak of a fluoroolefin refrigerant composition from a cooling system of an automotive vehicle. Such fluoroolefin refrigerant compositions have double bond structures which make them particularly well suited with sensing technologies, including: infrared sensors, UV sensors, NIR sensors, ion mobility or plasma chromatographs, gas chromatography, refractometry, mass spectroscopy, high temperature thick film sensors, thin film field effect sensors, pellistor sensors, Taguchi sensors and quartz microbalance sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.