Patent ID: 9644576
Date: 2017-05-09
CPC Classifications: F02M,Y02T

Claim:
1. An exhaust gas feed device for an internal combustion engine, the exhaust gas feed device comprising: an exhaust gas recirculation duct comprising an end, an outlet, and an outflow cross-section; an air intake duct into which the exhaust gas recirculation duct opens; a flow-guiding element provided as a swirl generator, the flow-guiding element being arranged in and at the end of the exhaust gas recirculation duct; an exhaust gas recirculation valve comprising a regulator body, the regulator body being configured to control the outflow cross-section; and a valve seat arranged at the outlet at the end of the exhaust gas recirculation duct in which the flow-guiding element is arranged, the valve seat being configured to limit the outflow cross-section of the exhaust gas recirculation duct, wherein, the end of the exhaust gas recirculation duct, in which the flow-guiding element is arranged, is arranged to taper in a frustoconical shape towards the outlet, the exhaust gas recirculation duct further comprises a surrounding side wall arranged at the end, and the swirl generator comprises vanes arranged to extend radially towards the surrounding side wall of the exhaust recirculation duct and a central axle to which the vanes are fastened, the vanes comprising an angle to the central axle which increases in a circumferential direction, as seen in a flow direction of an exhaust gas, and being configured to extend to the surrounding side wall of the exhaust gas recirculation duct.