Axial piston machine having a seal ring which is spherical in sections

An axial piston machine in which pistons in cylinders execute a stroke movement, and in which the pistons have a sealing ring seat for a sealing ring, wherein the sealing ring seat is operatively configured such that it permits a movement of the sealing ring transverse to a longitudinal axis of the piston, wherein the sealing ring is spherical in shape at least in a region which effects a seal during the stroke movements on inner walls of a first cylinder of the cylinders, wherein the radius of curvature of the sealing ring is formed in a spherical shape in certain regions and corresponds to half a diameter of the first cylinder, wherein a cross-section of the sealing ring is operatively configured such that, at a high operating pressure, a deformation of the sealing ring by an operating pressure largely compensates for a widening of the inner wall of the first cylinder by the operating pressure, and wherein a central inner opening of the sealing ring has a stepped profile.

An axial piston machine in which pistons in cylinders execute a stroke movement, and in which the pistons have a sealing ring seat for a sealing ring, wherein the sealing ring seat is operatively configured such that it permits a movement of the sealing ring transverse to a longitudinal axis of the piston, wherein the sealing ring is spherical in shape at least in a region which effects a seal during the stroke movements on inner walls of a first cylinder of the cylinders, wherein the radius of curvature of the sealing ring is formed in a spherical shape in certain regions and corresponds to half a diameter of the first cylinder, wherein a cross-section of the sealing ring is operatively configured such that, at a high operating pressure, a deformation of the sealing ring by an operating pressure largely compensates for a widening of the inner wall of the first cylinder by the operating pressure, and wherein a horizontal clearance between an inner diameter of the sealing ring and a pin of the sealing ring seat, and a vertical clearance of the sealing ring within the sealing ring seat are selected to be at least great enough that they operatively enable the pressure equalization between the piston interior and the interior of the sealing ring.

The axial piston machine in which pistons in cylinders execute a stroke movement, and in which the pistons have a sealing ring seat for a sealing ring, wherein the sealing ring seat is operatively configured such that it permits a movement of the sealing ring transverse to a longitudinal axis of the piston, wherein the sealing ring is spherical in shape at least in a region which effects a seal during the stroke movements on inner walls of a first cylinder of the cylinders, wherein the radius of curvature of the sealing ring is formed in a spherical shape in certain regions and corresponds to half a diameter of the first cylinder, wherein the piston is fastened to a piston plate by a first end, and wherein a piston diameter in a region between the sealing ring seat and the first end tapers increasingly.