公开(公告)号：US20200166140A1

公开(公告)日：2020-05-28

申请号：US16692632

申请日：2019-11-22

申请人： KALSI ENGINEERING INC.

发明人： Aaron P. Richie ,  Lannie L. Dietle ,  Jeffrey D. Gobeli

IPC分类号： F16J15/3244 ,  F16J15/16

摘要： A rotary shaft sealing assembly having a rotatable shaft, a seal housing having a groove bore located radially outward of and facing the rotatable shaft, and a sealing element in sealing contact with the shaft and groove bore. The sealing element having seal body first and second ends and tangs extending axially from the seal body first end. A shelf member has an outer groove wall and a shelf defining an inner groove wall. The inner and outer groove walls providing axial support to the sealing element in certain conditions of assembly and operation. The seal housing or the shelf member providing restraints, with a portion of the restraints in circumferential alignment with the tangs and blocking rotation of the sealing element. The shelf, located radially between the shaft and the restraints, blocks and prevents loss of the restraints.