公开(公告)号：US20220299114A1

公开(公告)日：2022-09-22

申请号：US17701363

申请日：2022-03-22

申请人： Amsted Rail Company, Inc.

发明人： Linas Maskaliunas ,  Samant Khanna

IPC分类号： F16J15/3228 ,  F16J15/3212

摘要： A leather flange for a bidirectional seal assembly includes a radial flange leg encircling a rotation axis of the leather flange. The leather flange also includes an oblique flange leg encircling the rotation axis and joined to the radial flange leg. The oblique flange leg extends both radially inward and axially away from the radial flange leg to form an oblique angle with the rotation axis. An end face of the oblique flange leg forms a sinusoidal pattern around a circumference of the leather flange. The end face also meets an air-side surface of the oblique flange leg to form a lip. When the leather flange is installed around a shaft, the lip forms a sinusoidal path around the circumference of the shaft. As the shaft rotates, the sinusoidal path of the lip creates an axial back-and-forth sweeping action.