US 12,234,818 B2
Axial piston machine having a seal ring which is spherical in sections
Dirk Becher, Nufringen (DE); Daniel Flach, Gartringen (DE); and Tino Kentschke, Weil der Stadt (DE)
Assigned to Moog GmbH, Boblingen (DE)
Appl. No. 18/010,405
Filed by Moog GmbH, Boblingen (DE)
PCT Filed Jun. 16, 2021, PCT No. PCT/EP2021/066203
§ 371(c)(1), (2) Date Dec. 14, 2022,
PCT Pub. No. WO2021/259723, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 102020116656.7 (DE), filed on Jun. 24, 2020.
Prior Publication US 2023/0228264 A1, Jul. 20, 2023
Int. Cl. F04B 53/14 (2006.01); F04B 1/124 (2020.01)
CPC F04B 53/143 (2013.01) [F04B 1/124 (2013.01)] 24 Claims
OG exemplary drawing
 
1. 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, and wherein the sealing ring is secured in the sealing ring seat with a cover against a movement along the longitudinal axis of the piston.