公开(公告)号：US20220025973A1

公开(公告)日：2022-01-27

申请号：US17443132

申请日：2021-07-21

Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION

Inventor： Herman M. DUBOIS ,  Michael D. DOWNES ,  Colby STARK

IPC: F16J15/3204 ,  F16J15/3284

Abstract: Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes an annular support ring disposed within the spring. The support ring biases an outer diameter (OD) of the spring towards the outer sealing leg of the jacket to maintain contact pressure between the inner sealing leg of the jacket and the shaft of the assembly. The support ring controls thermal shrinkage of the spring and the outer sealing leg to maintain a seal between a housing and a shaft of the assembly when the assembly is operated at cryogenic temperatures.