公开(公告)号：WO2021239361A1

公开(公告)日：2021-12-02

申请号：PCT/EP2021/060899

申请日：2021-04-27

Applicant: DRESSER-RAND SAS

Inventor： MARINELLI, Giampiero

IPC: F16J15/34 ,  F16J15/447

Abstract: The present invention proposes a method for assembling a seal cartridge and a seal cartridge, wherein the seal cartridge (1) comprises a set of sealing components configured for be- ing removably assembled to each other so as to form the seal cartridge (1) and wherein at least one of said sealing components is configured for being secured to another sealing component and/or to a shaft casing (21) by means of a tenon and mortise joint system (3).

公开(公告)号：WO2020126519A1

公开(公告)日：2020-06-25

申请号：PCT/EP2019/083803

申请日：2019-12-05

Applicant: DRESSER-RAND SAS

Inventor： LEBIGRE, Olivier ,  MARINELLI, Giampiero

IPC: F16J15/30 ,  F16J15/40 ,  F16J15/44 ,  F16J15/447 ,  F01D11/02

Abstract: The invention relates to a ring-element (SPR) of a shaft seal (SHS) extending circumferentially along a central axis (X), - wherein said ring-element (SPR) is provided with conducts (RCD) to supply a seal fluid (SFL) from radially outside (ROS) to radially inside (RIS), - wherein said ring-element (SPR) is provided with two axially opposing axial contact surfaces (ACS) extending on both axial front faces (AFF) in circumferential direction (CFD). To reduce axial space requirement, improve mechanical integrity and reduce pressure loss during the passage through said ring-element (SPR) said ring-element (SPR) comprises: - a first axial annular wall (AW1) in turn comprising one said axial contact surface (ACS), - a second axial annular wall (AW2) in turn comprising the other axial contact surface (ACS), wherein said first and second axial walls (AW1, AW2) are connected to each other at inner wall surfaces (IWS), by means of axially extending connection structures (CST), wherein said inner wall surfaces (IWS) are the respective opposite sides of said axial contact surfaces (ACS), wherein said conducts (RCD) are defined by said connection structures (CST) and said inner wall surfaces (IWS).

公开(公告)号：WO2021239362A1

公开(公告)日：2021-12-02

申请号：PCT/EP2021/060985

申请日：2021-04-27

Applicant: DRESSER-RAND SAS

Inventor： MARINELLI, Giampiero

IPC: F16J15/34 ,  F16J15/40 ,  F16J15/447 ,  F16B3/00 ,  F16C1/00

Abstract: The present invention proposes a pin locking device (3) for assembling a first sealing component (10A) with a second sealing component (10B) of a seal cartridge (1) and a method for assembling such a seal cartridge comprising said first sealing component (10A) and said second sealing component (10B), the pin locking device (3) comprising: - a pin body (31) comprising a longitudinal bore (310) extending along a longitudinal axis (C), wherein an inner wall (311) of said bore (310) comprises fixing means configured for cooperating with an extraction tool (4), the pin body (31) comprising two parts arranged longitudinally one after the other one along said longitudinal axis (C), namely a first part (31A) configured for fitting a pin cavity (100A) of the first sealing component (10A) and a second part (31B) configured for fitting a locking cavity (100B) of the second sealing component (10B); - a spring (32) configured for moving the pin body (31) from a withdrawn position, where the pin body (31) is entirely located within a pin cavity (100A) of the first20 sealing component (10A), towards a locked position wherein a second part (31B) of the pin body (31) is located and maintained within a locking cavity (100B) of the second sealing component (100B) while a first part (31A) remains located within said pin cavity (100A).