Axial piston machine having an insert ring and an insert ring for an axial piston machine

A dual axial piston machine, comprising:

• a pump housing that includes a central part and that defines a double-cup shape;
• a first cylinder barrel and a second cylinder barrel mounted in the pump housing and having a multiplicity of pistons, each delimiting a working space and being supported on an adjustable swashplate;
• a first control disk arranged at a first side of the central part of the pump housing and configured to alternately connect the working space of the first cylinder barrel to a first low-pressure and a first high-pressure duct;
• a second control disk arranged at a second side of the central part of the pump housing and configured to alternatingly connect the working space of the second cylinder barrel to a second low-pressure and second high-pressure duct;
• a drive shaft configured to connect to the first cylinder barrel and second cylinder barrel to rotate conjointly;
• and
• a first insert ring, on which the drive shaft is mounted and in which a first high-pressure duct section is formed, the first insert ring inserted into the first side of the central part of the pump housing, wherein the first high-pressure duct section defines a first orifice region that is on a side of the first insert ring facing towards the first control-disk, and that extends in an at least substantially axial direction with respect to the drive shaft, and a second orifice region that is on a side of the first insert ring facing the first high-pressure duct, and that extends in an at least substantially radial direction with respect to the drive shaft;
• and
• a second insert ring, on which the drive shaft is mounted and in which a second high-pressure duct section is formed, the second insert ring inserted into the second side of the central part of the pump housing, wherein the second high-pressure duct section defines a third orifice region that is on a side of the second insert ring facing towards the second control-disk, and that extends in an at least substantially axial direction with respect to the drive shaft, and a fourth orifice region that is on a side of the second insert ring facing the second high-pressure duct, and that extends in an at least substantially radial direction with respect to the drive shaft;
• wherein the first and second insert rings are configured to absorb an amount of pressure that corresponds to pressure loading of the axial piston machine.