Compact ejector system for a boosted internal combustion engine
US9885323B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2016 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Aug 2, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/8046
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Vapors in the fuel tank of a vehicle are collected in a carbon canister. An ejector or aspirator is used to purge the carbon canister in a pressure-charged engine in which a positive pressure exists in the intake. A compact ejector includes a substantially planar flange and a venturi tube coupled to the flange with a central axis of the venturi tube substantially parallel to the flange. By mounting the ejector on an intake component, having the venturi tube on the inside of the intake component, and having the venturi tube parallel to the flange yields a very compact package and protects the ejector from damage from other engine components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.