Apparatus for regulating turbochargers and internal combustion engines associated therewith

A regulator and anti-overload apparatus for turbochargers for use with an internal combustion engine comprising an air intake manifold, an exhaust tube, an exhaust turbocharger, said turbocharger including a turbine wheel and a compressor element, said turbine wheel being disposed in said exhaust tube of said engine and said compressor element of said turbocharger being disposed in said intake manifold for delivering combustion air to the engine at increased pressure, an exhaust bypass line that bypasses said turbocharger;

• said anti-overload apparatus further including an exhaust gas flow control means which in accordance with turbocharger-engine parameters controls flow of partial quantities of exhaust gas through said exhaust bypass line, an air flow rate meter which produces an output value dependent on the flow of air through the air intake manifold, an rpm meter which produces an output value dependent on the rpm of said internal combustion engine, a curve generator to which said output value of said rpm meter is delivered, said curve generator generating a set-point air quantity (Q.sub.soll) which corresponds to the particular engine rpm at that time, an electronic regulator having an input which input is connected to the output of said curve generator which delivers said generated set-point air quantity thereto and to the output of said air flow rate meter producing a control signal corresponding to a deviation of the output value of said air flow rate meter from said set-point, said electronic regulator producing an output which is connected to said exhaust gas flow control means for controlling partial quantities of exhaust gas through said exhaust bypass line.