Patent ID: 6295815
Filing Date: 2001-10-02
Classification: F02D,F02M

Abstract:
An internal combustion engine with exhaust gas re-circulation, including an exhaust gas turbocharger having an exhaust gas turbine and a fresh air charger, a fresh air supply duct connected to said fresh air charger for supplying combustion air to said engine, an exhaust gas pipe extending from said engine to said exhaust gas turbine for driving said turbocharger, an exhaust gas re-circulation line branching off said exhaust gas pipe upstream of said exhaust gas turbine and leading to said fresh air supply duct downstream of said fresh air charger, and a flap valve arranged in said exhaust gas re-circulation line and including a pivotally supported valve flap which, in an open position of said flap valve, is disposed in a plane extending parallel to the direction of the exhaust gas flow through said exhaust gas re-circulation line and a first stop structure and a second stop structure provided on the inner wall of said exhaust gas re-circulation line displaced with respect to each other such that, in a closed position of said valve flap, the exhaust side of said flap engages the first stop structure and the intake side of said flap engages the second stop structure, said shaft being eccentrically mounted to said valve flap and pivotally supported such that said valve flap is biased by the exhaust gas pressure against the first and second stop structures when said valve flap is closed.