An exhaust gas recycle (EGR) isolation flange that includes an annular body that defines a central aperture therethrough and a plurality of axially extending bosses that extend from the body is disclosed. Additionally, a method for coupling an exhaust gas recycle flange to an isolation flange is disclosed...http://www.google.de/patents/US6810865?utm_source=gb-gplus-sharePatent US6810865 - Exhaust gas recycle (EGR) assembly
