Positive crankcase ventilation systems and engine systems including the same
US10119438B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2017 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Jul 22, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine system comprises an intake manifold including a manifold body downstream of an intake port and having a first through-aperture and a second through-apertures spaced apart from the first through-aperture on the manifold body; a positive crankcase ventilation (PCV) system including a first PCV branch and a second PCV branch communicated fluidly with the first through-aperture and the second through-aperture of the manifold body, respectively, and configured to route a blow-by gas in a crankcase to the intake manifold; and a variable valve assembly to regulate a flow passing through the first or second PCV branches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.