Internal gear pump having a lubricant feed from the suction region

An internal gear pump, comprising:

• a ring gear;
• a pinion arranged eccentrically in the ring gear and configured to mesh with the ring gear in a circumferential section;
• a pump chamber delimited between the ring gear on an outside and the pinion on an inside, the pump chamber extending in a circumferential direction from a suction region to a pressure region outside the circumferential section in which the ring gear and the pinion mesh;
• at least one axial disk arranged on a front face of the ring gear and a front face of the pinion and configured to bear against the front faces of the ring gear and of the pinion, the at least one axial disk configured to be subjected to pressure on an outer side oriented away from the ring gear and the pinion and configured to delimit the pump chamber on one side;
• and
• a lubricant feed from the suction region between the at least one axial disk and at least one of the ring gear and the pinion, wherein:
• the at least one axial disk has an oblique face on an inner side oriented towards the ring gear and the pinion,
• the oblique face is at a distance from at least one of the ring gear and the pinion in the suction region of the internal gear pump, is configured to converge with at least one of the ring gear and the pinion in a delivery direction of the internal gear pump, and is configured to delimit a wedge gap between the at least one axial disk and at least one of the ring gear and the pinion, and
• the wedge gap is configured to narrow in the delivery direction, is configured to communicate with the suction region, and is configured to form the lubricant feed.