Engine system routing crankcase gases into exhaust
US7721540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jun 10, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine system is disclosed. The engine system has an engine block having at least one combustion chamber and at least partially defining a crankcase. The engine system also has an inlet conduit connecting a compressor of a turbocharger with the at least one combustion chamber. The engine system further has an exhaust conduit connecting a turbine of the turbocharger with the combustion chamber and a ventilation conduit connecting the crankcase with the exhaust conduit. The engine system also has a controller in communication with the turbocharger, the controller being configured to adjust the geometry of the turbocharger to maintain a pressure of the crankcase lower than a pressure of the inlet conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.