Patent ID: 7934492
Filing Date: 2011-05-03
Classification: F02B,F02M,Y02T

Abstract:
1. A method for improving exhaust gas recirculation in an internal combustion engine having an exhaust gas turbocharger, comprising the acts of: determining operating parameters of the internal combustion engine from which pressure values of the exhaust gas are determinable; determining the pressure values from the operating parameters; controlled feeding of compressed air into a feed section of a gas feed device based on the determined exhaust gas pressure values to generate a vacuum; and drawing a portion of exhaust gas into the feed section of the gas feed device using the vacuum to recirculated exhaust gas into the engine via an intake line between the gas feed device and the engine, wherein the controlled feeding of compressed air is performed by switching on a compressed air valve when at least one of the determined exhaust gas pressure values falls below a predefined comparison value.