Patent ID: 7798135
Filing Date: 2010-09-21
Classification: F02M

Abstract:
1. An exhaust gas recirculation device for an internal combustion engine, comprising: at least one exhaust gas recirculation line configured to introduce exhaust gas into a fresh air line of the internal combustion engine, an exhaust gas recirculation valve for controlling a flow of the at least one exhaust gas recirculation line, the at least one exhaust gas recirculation line having an end section disposed within the fresh air line, having an axially open orifice opening, wherein the exhaust gas recirculation valve has a sleeve situated in the fresh air line, the sleeve enveloping the at least one exhaust gas recirculation line in the area of the orifice opening, the sleeve being axially adjustable along the fresh air line, the sleeve having a nozzle contour defining a cross-section which first decreases and then increases in the flow direction, wherein the exhaust gas recirculation valve has a control element for axially adjusting the sleeve in relation to the fresh air line, wherein the exhaust gas recirculation valve includes at least one closure body, the at least one closure body configured to cooperate with the orifice opening of the exhaust gas recirculation line to adjust an open cross-section of the orifice opening of the exhaust gas recirculation line, the at least one closure body configured such that adjustment of the sleeve also adjusts the closure body relative to the orifice opening, and wherein the at least one closure body that cooperates with the sleeve to set a minimum cross-sectional opening of the at least one exhaust gas recirculation line when the sleeve is adjusted maximally upstream.