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公开(公告)号：US11608898B2
公开(公告)日：2023-03-21
申请号：US17339397
申请日：2021-06-04
IPC分类号： F16J15/34
摘要： A mechanical seal that employs an axially movable spring holder plate that engages a sealing element, such as an O-ring, associated with a stationary seal ring. In turn, the stationary seal ring can have a sealing face that engages with a sealing face of a rotary seal ring. The rotary seal ring can also have a sealing element, such as an O-ring, associated therewith. The O-rings are initially disposed in an unloaded position where they are not radially compressed and hence the ends do not expand circumferentially past the end faces of the holder or gland segments. The spring holder plate can be moved axially by tightening selected bolts associated therewith. When moved axially, the spring holder plate moves the stationary seal ring and the O-ring associated therewith in an axially inboard direction, thus placing the O-rings in a loaded position, where the O-rings are radially compressed.
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公开(公告)号：US12000489B2
公开(公告)日：2024-06-04
申请号：US18111373
申请日：2023-02-17
IPC分类号： F16J15/36
CPC分类号： F16J15/36
摘要： A mechanical seal assembly having a gland assembly, a rotary seal ring, a stationary seal ring, a sleeve assembly having a flange portion for mounting the rotary seal ring, a cover sealing element for seating over the flange portion and contacting a portion of the rotary seal ring, and an energizer sealing element axially spaced from the cover sealing element for sealing a portion of the stationary seal ring and the gland assembly and for providing an axial biasing force to the stationary seal ring.
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公开(公告)号：US20230204107A1
公开(公告)日：2023-06-29
申请号：US18111840
申请日：2023-02-20
CPC分类号： F16J15/3488 , F16J15/40
摘要： A mechanical seal assembly includes a gland assembly having a chamber formed in an inner surface for seating a fluid insert element. The fluid insert element promotes movement of particles present in a slurry process fluid away from a seal interface formed by the sealing surfaces of rotary and stationary seal rings.
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公开(公告)号：US20230258267A1
公开(公告)日：2023-08-17
申请号：US18111373
申请日：2023-02-17
IPC分类号： F16J15/36
CPC分类号： F16J15/36
摘要： A mechanical seal assembly having a gland assembly, a rotary seal ring, a stationary seal ring, a sleeve assembly having a flange portion for mounting the rotary seal ring, a cover sealing element for seating over the flange portion and contacting a portion of the rotary seal ring, and an energizer sealing element axially spaced from the cover sealing element for sealing a portion of the stationary seal ring and the gland assembly and for providing an axial biasing force to the stationary seal ring.
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公开(公告)号：US20210381603A1
公开(公告)日：2021-12-09
申请号：US17339397
申请日：2021-06-04
IPC分类号： F16J15/34
摘要： A mechanical seal that employs an axially movable spring holder plate that engages a sealing element, such as an O-ring, associated with a stationary seal ring. In turn, the stationary seal ring can have a sealing face that engages with a sealing face of a rotary seal ring. The rotary seal ring can also have a sealing element, such as an O-ring, associated therewith. The O-rings are initially disposed in an unloaded position where they are not radially compressed and hence the ends do not expand circumferentially past the end faces of the holder or gland segments. The spring holder plate can be moved axially by tightening selected bolts associated therewith. When moved axially, the spring holder plate moves the stationary seal ring and the O-ring associated therewith in an axially inboard direction, thus placing the O-rings in a loaded position, where the O-rings are radially compressed.
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