Device for controlling the idling speed of an internal combustion engine

A device for controlling the idling speed of an internal combustion engine by controlling a quantity of operating medium which is fed to the internal combustion engine from an operating medium source via at least a first valve and a first flow line (20a) and via at least a second valve and a second flow line (20c), said first valve comprising a first valve closing element and said second valve comprising a second valve closing element, the first flow line leading to a fuel metering device and the second flow line leading to an intake port of the internal combustion engine downstream of a throttle valve (28) arranged in the intake port, and the first and the second valve closing elements are capable of being adjusted by means of an actuator, wherein the first valve (16) and the second valve (18) are arranged in series one behind the other between the operating medium source (10) and the intake port of the internal combustion engine (12), and wherein the valve closing elements (38a, 38b) are coupled in such a way that, when they are actuated, firstly the first valve closing element (38a) always clears an inlet opening (32) to a flow area which has an outlet (34) that communicates with the first flow line (20a) and subsequently the second valve closing element (38b) clears a further outlet (36) which connects a flow area with the second flow line (20c).