Separator with transfer tube drainage
US7776139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Oct 31, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/19
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dual stage coalescer includes a separator in a separator chamber separating gas and liquid by inertial impaction, and a coalescer filter element in a coalescer chamber separating gas and liquid by coalescence. A transfer tube extends between the separator chamber and a downstream subchamber in the coalescer chamber at the downstream face of the coalescer filter element, and supplies pre-separated liquid from the separator chamber through the transfer tube to the noted downstream subchamber as driven by pressure differential between the separator chamber and the downstream subchamber, to eliminate a dedicated housing drain outlet from the separator chamber. The coalescer may provide a crankcase ventilation filter for an internal combustion engine having blowby gas containing an air-oil mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.