Filtration system
US9744488B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2013 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jul 24, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2315/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The filtration system having a housing having an inlet, at least one outlet being axially spaced from the inlet and forming a helical purge path therebetween, and a filtrate outlet extending out along the axis, with a flow rate ratio being balanced by flow restriction between the filtrate outlet and the at least one purge outlet during regular operation; a filter element including a filtration membrane and a support membrane mounted concentrically around the axis, at least one of said filtration membrane and support membrane being rotatably mounted to the housing for rotation about the axis to impart a relative rotation speed between the filtration membrane and support membrane during operation; the system being operable to temporarily increase the flow rate ratio through the at least one outlet compared to said regular operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.