CONTROL DEVICE FOR A COMBUSTION ENGINE

Control devices for internal combustion engines with an intake passage (12), an exhaust gas recirculation passage (16) which opens into the intake passage (12), a housing (10) in which the intake passage (12) and at least one opening (14) of the exhaust gas recirculation passage (16) are formed, a shaft (36) serving as a rotation axis (38) which is arranged in the housing (10) upstream of the opening (14) of the exhaust gas recirculation passage (16) with respect to the air flow and outside the flow cross-section and is arranged perpendicular to the central axes (20, 34) of the intake passage (12) and the exhaust gas recirculation passage (16), a control element (42) which is mounted eccentrically on the shaft (36) and by means of which the control element (42) is rotatable in the intake passage (12), a first valve seat (50) at which the control element (42) rests in a first end position in which the control element (42) closes off the intake passage (12), and a second valve seat (72) at which the control element (42) rests in a second end position in which the control element (42) closes off the exhaust gas recirculation passage (16), are known. However, these have the disadvantage that over a wide range of adjustment of the control element no significant changes in the amount of exhaust gas recirculated are observed. In order to solve this problem, it is proposed according to the invention that a plane (74) spanned by the first valve seat (50) encloses an angle of 70° to 80° with the central axis of the intake passage (12).