Exhaust gas recirculation for an internal combustion engine
US5492104A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Nov 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An EGR transfer assembly includes a tubular conduit having a first end in communication with a source of exhaust gas and a second end located in an oversized opening in the engine intake manifold. A seal carrier configured as a cylindrical sleeve having a flanged portion at one end, is received over the second end of the conduit such that the cylindrical portion is inserted into the opening in circumjacent relationship to the conduit to define an insulating space therebetween. The flanged portion of the carrier limits the entry of the cylindrical sleeve into the manifold by seating against the manifold. Seals are disposed between the sleeve and the conduit and between the flange and the manifold to limit the leakage of air through the manifold opening. A spring member is seated between the seal carrier and a stop member and acts to seat the flanged portion against the manifold. Forces exerted on the carrier from air pressure within the manifold may exceed the closing force exerted by the spring member causing the seal carrier to move from its sealed, seated position against the manifold to vent pressure from within the manifold through the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.