Patent attributes
A seal assembly is disclosed for sealing a higher pressure fluid cavity from a lower pressure fluid cavity. The seal assembly comprises a ceramic seal runner and a mounting assembly. The ceramic seal runner extends around an axial portion of a shaft. The mounting assembly is affixed to and carries the seal runner in axial and radial alignment with the shaft. The mounting assembly comprises an annular base member, a plurality of flexible members, and an annular sleeve member. The plurality of flexible members are circumferentially spaced about the base member and each extend radially outward from one end affixed to the base member in a direction opposite the direction of rotation of the shaft to a distal end. The annular sleeve member is positioned to engage the distal ends of the flexible members and a radially inner surface of the seal runner.
