Axial piston machine having a seal ring which is spherical in sections
AssigneeMoog Inc.
InventorsDirk Becher, Daniel Flach, Tino Kentschke
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Abstract
The invention relates to an axial piston machine in which pistons carry out a stroke movement in cylinders and in which the pistons have a seal ring receptacle for a seal ring. In order to improve robustness, wear resistance, friction and stick-slip behavior, according to the invention, the seal ring is spherical, wherein the curvature radius of the seal ring, which is spherical in regions, substantially corresponds to half the diameter of the cylinder inner wall.
Claims24
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, and 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 central inner opening of the sealing ring has a circumferential bead-like recess.
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Dependencies are inferred from the claim text.