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公开(公告)号：US20210381541A1
公开(公告)日：2021-12-09
申请号：US17340545
申请日：2021-06-07
摘要： A mechanical seal that employs a lock ring assembly having associated therewith a locking mechanism. The locking mechanism can include a nut element, such as a barrel nut, that allows an associated bolt element to adjust a tightening load and position while clamping occurs of the components of the mechanical seal. This adjustment flexibility removes or reduces unwanted bending stresses in the bolt element, thus allowing for more torque to translate directly to the lock ring. The barrel nut allows for more material to remain in the lock ring, thus providing for additional overall strength relative to a traditional locking element. The lock ring also includes a plurality of flex regions in the form of notches that allow the lock ring to flex when the main body is tightened about the shaft.
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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：US12085109B2
公开(公告)日：2024-09-10
申请号：US17340545
申请日：2021-06-07
摘要： A mechanical seal that employs a lock ring assembly having associated therewith a locking mechanism. The locking mechanism can include a nut element, such as a barrel nut, that allows an associated bolt element to adjust a tightening load and position while clamping occurs of the components of the mechanical seal. This adjustment flexibility removes or reduces unwanted bending stresses in the bolt element, thus allowing for more torque to translate directly to the lock ring. The barrel nut allows for more material to remain in the lock ring, thus providing for additional overall strength relative to a traditional locking element. The lock ring also includes a plurality of flex regions in the form of notches that allow the lock ring to flex when the main body is tightened about the shaft.
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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：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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