Device for the transfer of exhaust gas from the exhaust collector of a supercharged internal combustion engine to the inlet conduit thereof
US6502397B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device for transferring EGR gasses from the exhaust collector of a supercharged internal combustion engine to its inlet conduit includes, besides a supercharge unit, a venturi device having the purpose of sucking the EGR gasses from the exhaust collector into the inlet conduit in order to overcome the high gas pressure in the pressurized charging air in this conduit. In order to adjust the amount of sucked-in EGR gas to the different load points, under which the engine works, an injector tube is arranged in the inlet section to the canal of the venturi device, through which injector tube the EGR gasses are led into the inlet conduit. The free end of this injector tube delimits, together with the surrounding canal wall, a ring-shaped passage, whose cross-sectional area may be varied by an axial relative motion between the injector tube and the venturi device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.