Patent ID: 11952987
Assignee: DANFOSS A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 16:
17. A hydraulic piston machine comprising a piston having a hollow surrounded by a wall and an insert arranged in the hollow, wherein the insert comprises a section which extends out of the hollow, wherein the piston is arranged in a cylinder drum cooperating with a valve plate, wherein a pressure arrangement is arranged between the cylinder drum and the valve plate and the section extends into the pressure arrangement, wherein at least a first ring comprises at least one thin section having a radial extent smaller than the largest radial extent of the ring and wherein the insert is secured in a first position by means of the first ring, wherein the first ring comprises a number of blocks separated by the at least one thin section, wherein the at least one thin section has an axial extension smaller than the axial extension of the blocks, and wherein a gap configured to allow a flow of fluid between the insert and the wall of the piston is provided along the entire length of the insert within the piston.