Intake manifold for internal combustion engine, positive crankcase ventilation system including same, and internal combustion engine
US11898522B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2023 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Mar 24, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2013/0461
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The disclosed subject matter includes an intake manifold for an internal combustion engine that can have a labyrinth structure located therein configured to cause fluids, such as blow-by from engine exhaust, to move in a non-linear direction. The intake manifold can have a plenum including an inlet opening, a plurality of runners, each of the runners extending from the plenum and including a first end opened to the plenum and a second end configured to be connected to the internal combustion engine, and a ventilation chamber, the ventilation chamber extending along each of the runners. The ventilation chamber can include a plurality of ports spaced along the ventilation chamber, each port opens into a respective one of the runners, and a labyrinth inside the ventilation chamber and extending across the ventilation chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.