公开(公告)号：WO2023043887A1

公开(公告)日：2023-03-23

申请号：PCT/US2022/043610

申请日：2022-09-15

Applicant: FLOWSERVE MANAGEMENT COMPANY

Inventor： RYNEARSON, Rodney Wayne

IPC: F16J15/324 ,  F16J15/16 ,  F16J15/34

Abstract: An open cooling space or spiral cooling channel is formed between channel walls of a spool and an outer housing of a rotating shaft seal. The spool is sealed to the housing at the two ends thereof, does not intrude into the cooling inlet or outlet, and is axially removable and exchangeable without being distorted, thereby avoiding damage to the spool and/or contact between the spool and rotating seal elements. Due to the easy installation and removal of the spool, it can be installed as an upgrade after seal installation, and is easily cleaned and replaced. The cooling channel can be terminated by inlet and outlet rings, such that the spool does not require any rotational alignment within the seal assembly. The cooling channel can have a square or rectangular cross-section, thereby increasing thermal exchange between the cooling channel and the cooling channel spool rendering the cooling more efficient.

公开(公告)号：WO2018132451A1

公开(公告)日：2018-07-19

申请号：PCT/US2018/013131

申请日：2018-01-10

Applicant: FLOWSERVE MANAGEMENT COMPANY

Inventor： OWENS, JR., Glenn Robert ,  RYNEARSON, Rodney Wayne ,  KRAUS, Michael Anthony

IPC: F16J15/28 ,  F16J15/34

Abstract: An improved rotor or stator split ring seal assembly includes a flexible ring-advancing mechanism that advances at least one of the split ring halves radially inward, so that during assembly the split ring halves meet before adjacent elastomeric members, thereby preventing the elastomeric members from expanding between the seal ring halves and interfering with their alignment. The ring-advancing mechanism is flexed as the seal is assembled, thereby allowing the ring halves to be seated in the housing. The ring-advancing mechanism can be removable after assembly or internal to the seal. In various embodiments, the ring-advancing mechanism is a flexible bracket, a coil spring, or a vertical or horizontal leaf spring. Separate, identical ring-advancing mechanisms can be included with each of the housing halves so as to advance the split ring halves symmetrically.