Axial disc and gear pump with axial disc

摘要

An internal gear pump for a hydraulic vehicle brake system has axial discs which, by the exertion of pressure on the outer sides thereof, are pressed against gearwheels of the internal gear pump for lateral sealing, provided on the inner sides thereof with grooves through which the gearwheels convey brake fluid as they are driven in rotation, which brake fluid thereby passes, for lubrication, between the axial discs and the gearwheels of the internal gear pump.

主权项

1. An axial disc for a gear pump, comprising:
a surface structure on an inside of the axial disc facing gearwheels of the gear pump, wherein the surface structure conducts fluid conveyed by the gear pump between the gearwheels and the axial disc, wherein the surface structure includes a rough surface on the inside of the axial disc, and wherein the inside of the axial disc has the rough surface in a region in which the axial disc contacts at least one of the gearwheels of the gear pump.