Centrifugal separator for preparing automotive exhaust gas for pollution testing with pressure compensation
US5147426A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Feb 4, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
As gas-liquid centrifugal separator includes a housing having a gas separating chamber that communicates with a source of a gas sample. A rotating plate can be positioned within the gas separating chamber for the centrifugal separation of liquids and/or solid particulates from the sample gas. The gas separating chamber is maintained at a pressure differential below that of the source of the gas sample. The discharge passageway communicates with the separating chamber to remove the separated liquid and solid particulates. A pressure regulator assembly is connected to the discharge passageway and a source of a pressurized gas in order to be responsive to variations in the pressure status of the discharge passageway and thereby vary the flow of the secondary pressurized gas to render the pressure level in the discharge passage constant to enable a constant effluence of the separated liquid and solid particulates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.