Positive crankcase ventilation system
US8020541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Feb 26, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M13/023
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A positive crankcase ventilation system for an internal combustion engine comprises an intake manifold having a plurality of intake runners configured to deliver combustion air to the internal combustion engine. An intake manifold positive crankcase ventilation passage is disposed in the intake manifold and is in fluid communication with a source of blow-by gas from the engine. A positive crankcase ventilation distribution channel is formed adjacent to the sealing face of the intake manifold and a modular positive crankcase ventilation distribution conduit assembly is disposed in the positive crankcase ventilation distribution channel and extends from the positive crankcase ventilation passage to the plurality of intake runners for delivery of the blow-by gas thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.