Crankcase ventilation system with pumped scavenged oil
US7699029B2 · kind B2 · utility
19Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2007 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2013/0488
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A crankcase ventilation system for an internal combustion engine has a jet pump suctioning scavenged separated oil from the oil outlet of an air/oil separator and pumping same to the crankcase. The jet pump supplies pumping pressure greater than the pressure differential between the higher pressure crankcase and the lower pressure oil outlet, to overcome such pressure differential and the back flow tendency otherwise caused thereby, and instead cause suctioning of scavenged separated oil from the oil outlet and pumping same to the crankcase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.