Patent ID: 8807096

Claim:
A heat management module of a cooling system, which includes a radiator circuit and a bypass circuit, of an internal combustion engine, comprising: a valve housing having at least one first feed connection for coolant carried by the bypass circuit, at least one adjacent second feed connection for coolant carried by the radiator circuit, and a discharge connection; a valve member arranged in the valve housing, the first feed connection and the second feed connection being connectable to the discharge connection depending on a position of the valve member; and a driving element, which actuates the valve member, being arranged on the valve housing, the driving element being a hydrostatic servo motor, which produces a rotational driving motion and has a feed pressure line for pressurization that branches off from the cooling system, wherein the hydrostatic servo motor comprises an internally toothed internal gear, a sun gear arranged eccentrically internal gear and in meshed engagement with the internal gear, and a curved filler piece arranged eccentrically in the internal gear and forming with the sun gear two opposing pressure chambers assigned to a first pressure connection and a second pressure connection, the first pressure connection and the second pressure connection being capable of two-way coupling to the feed pressure line.