Patent ID: 9074475
Filing Date: 2015-07-07
Classification: F01B,F01C,F04C,F05C

Abstract:
1. A sealing element in a hydraulic rotary piston machine for sealing a lever which is guided in an annular gap and is rotatable around a rotational axis, the lever being attached to a piston which is movably disposed in an annular channel coaxially surrounding the annular gap, wherein the sealing element is rotationally symmetrical relative to the rotational axis, wherein the sealing element comprises a first sealing part forming a dynamic region and a second sealing part forming a static region, wherein the dynamic region has an axial sealing face being directed towards and delimiting the annular gap, and a radial sealing face being directed towards and delimiting the annular channel; wherein the axial sealing face and the radial sealing face meet one another along a ring-shaped or arc-shaped edge; wherein the second sealing part is offset radially inwards relative to the radial sealing face and offset axially relative to the axial sealing face; and wherein the static region serves to fix the sealing element to the rotary piston machine, and wherein there is formed in the static region a channel positioned to receive a fluid, such that the fluid exerts a force onto the axial sealing face.