Patent ID: 6397597
Filing Date: 2002-06-04
Classification: F01D,F02B,F02D,F02M,F05D,Y02T

Abstract:
An internal combustion engine having a turbocharger with variable turbine geometry, including a compressor disposed in an air intake line of the internal combustion engine, and an exhaust-gas turbine arranged in an exhaust-gas line whose effective turbine cross section is adjustable, comprising:an exhaust-gas recirculation system having a recirculation line disposed between the exhaust-gas line and the air intake line; an adjustable recirculation valve adjustable between a blocking position and an open position, wherein in the open position exhaust gas recirculates from the exhaust-gas line to the air intake line; a slidable limit stop for limiting movement along a control path of the variable turbine geometry, the limit stop being movable between a limiting position that limits movement along the control path of the variable turbine geometry and a release position not limiting said movement; and a closed-loop and open-loop control device for detecting the operating state of the internal combustion engine and for adjusting the internal combustion engine as a function of load and state, wherein control signals moving the limit stop to the limiting position and control signals setting the recirculation valve into the open position are generated in said closed loop and open-loop control device.