Internal gear fluid machine, comprising - a first gearwheel comprising an outer toothing and mounted for rotation about a first axis of rotation and a second gearwheel comprising an inner toothing meshing with the outer toothing in an engagement region and mounted for rotation about a second axis of rotation different from the first axis of rotation, wherein - a filler piece is arranged between the first gearwheel and the second gearwheel away from the engagement region, which filler piece bears on one side against the outer toothing and on the other side against the inner toothing in order to divide a fluid space present between the first gearwheel and the second gearwheel into a first fluid chamber and a second fluid chamber, and wherein - housing walls of a machine housing of the internal gear fluid machine are arranged on both sides of the first gearwheel and the second gearwheel in the axial direction with respect to the first axis of rotation, characterised in that - a first connecting duct is configured in each of the two housing walls and a first of the fluid chambers (12, 13) is in flow connection with a first fluid connection of the internal gear fluid machine via both first connecting ducts, and a second connecting duct is configured in each of the two housing walls and a second one of the fluid chambers (12, 13) is in flow connection with a second fluid connection of the internal gear fluid machine via both second connecting ducts, and in that - at least one sealing disc is arranged in the axial direction with respect to the first axis of rotation next to the first gearwheel and the second gearwheel, which abuts in a sealing manner against the first gearwheel and the second gearwheel during operation of the internal gear fluid machine, wherein a first axial aperture, via which the first fluid chamber is in flow connection with the first fluid connection, and a second axial aperture, via which the second fluid chamber is in flow connection with the second fluid connection, are configured in the sealing disc. - a first gearwheel comprising an outer toothing and mounted for rotation about a first axis of rotation and a second gearwheel comprising an inner toothing meshing with the outer toothing in an engagement region and mounted for rotation about a second axis of rotation different from the first axis of rotation, wherein - a filler piece is arranged between the first gearwheel and the second gearwheel away from the engagement region, which filler piece bears on one side against the outer toothing and on the other side against the inner toothing in order to divide a fluid space present between the first gearwheel and the second gearwheel into a first fluid chamber and a second fluid chamber, and wherein - housing walls of a machine housing of the internal gear fluid machine are arranged on both sides of the first gearwheel and the second gearwheel in the axial direction with respect to the first axis of rotation, characterised in that - a first connecting duct is configured in each of the two housing walls and a first of the fluid chambers (12, 13) is in flow connection with a first fluid connection of the internal gear fluid machine via both first connecting ducts, and a second connecting duct is configured in each of the two housing walls and a second one of the fluid chambers (12, 13) is in flow connection with a second fluid connection of the internal gear fluid machine via both second connecting ducts, and in that - at least one sealing disc is arranged in the axial direction with respect to the first axis of rotation next to the first gearwheel and the second gearwheel, which abuts in a sealing manner against the first gearwheel and the second gearwheel during operation of the internal gear fluid machine, wherein a first axial aperture, via which the first fluid chamber is in flow connection with the first fluid connection, and a second axial aperture, via which the second fluid chamber is in flow connection with the second fluid connection, are configured in the sealing disc.