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公开(公告)号：US20240344612A1
公开(公告)日：2024-10-17
申请号：US18750853
申请日：2024-06-21
发明人： Yuichiro TOKUNAGA
CPC分类号： F16J15/3424 , F16C17/045 , F16C17/047
摘要： A pair of sliding members sliding relative to each other at sliding faces is configured such that at least one of the sliding faces includes a negative pressure generation mechanism separated from a leakage side by a leakage-side land portion and a land portion arranged in the negative pressure generation mechanism. In the compact sliding members, sliding torque can be reduced and a sealing function can be maintained.
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公开(公告)号：US20240328514A1
公开(公告)日：2024-10-03
申请号：US18128568
申请日：2023-03-30
CPC分类号： F16J15/342 , F01D11/005 , F05D2240/55
摘要： A seal assembly configured to reduce fluid flow from an axially upstream side of the seal assembly to an axially downstream side of the seal assembly includes a primary seal and a secondary seal assembly disposed at an axially forward end of the primary seal. The secondary seal assembly includes a seal support and a secondary seal. The seal support includes a downstream axial face disposed axially proximate to and facing the primary seal, an upstream axial face opposite the downstream axial face, a body extending from the downstream axial face to the upstream axial face, a first leg extending radially inward from the body, a second leg extending radially inward from the body, and a mistake-proofing protrusion extending from the upstream axial face and in an axially upstream direction.
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公开(公告)号：US12103017B2
公开(公告)日：2024-10-01
申请号：US17918615
申请日：2021-03-25
发明人： Johan Forsslund
IPC分类号： F16J15/32 , B04B7/00 , F16J15/324 , F16J15/34
CPC分类号： B04B7/00 , F16J15/324 , F16J15/342
摘要： A mechanical seal device for a centrifugal separator includes a first seal ring including a first seal surface and a second seal ring including a second seal surface. The first and second seal surfaces are configured to face each other to form a seal, and at least one channel for a cooling fluid is arranged in the first seal ring. The at least one channel includes an inlet and an outlet. The outlet of the at least one channel is arranged at the first seal surface of the first seal ring. A centrifugal separator includes the mechanical seal device.
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公开(公告)号：US12078208B2
公开(公告)日：2024-09-03
申请号：US17783256
申请日：2020-12-16
发明人： Hiroshi Suzuki , Yuichiro Tokunaga
CPC分类号： F16C33/12 , F04C29/0021 , F16J15/342
摘要： Provided is a sliding component capable of reducing the frictional resistance of a sliding surface entailing eccentric rotation. An annular sliding component has a sliding surface relatively sliding with eccentric rotation. A plurality of grooves open to a fluid space on the inner diameter side are circumferentially provided in the sliding surface. A side wall surface of the groove is configured by a wall surface continuous in a circular arc shape in a plan view.
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公开(公告)号：US12060909B2
公开(公告)日：2024-08-13
申请号：US17784604
申请日：2020-12-16
发明人： Hiroshi Suzuki , Yuichiro Tokunaga
CPC分类号： F16C17/026 , F16C17/045 , F16C33/107 , F16J15/3412
摘要： An annular sliding component has a sliding surface relatively sliding with eccentric rotation. The sliding surface is provided with a plurality of grooves each of which is open to a fluid space on at least one of an inner diameter side and an outer diameter side of the sliding surface and arranged in a circumferential direction. The groove is partially defined by a first side wall surface formed along the circumferential direction of the sliding surface and a second side wall surface connected to the first side wall surface and formed along a radial direction of the sliding surface.
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公开(公告)号：US20240263706A1
公开(公告)日：2024-08-08
申请号：US18434076
申请日：2024-02-06
发明人： Virgílio ALVES NETO
CPC分类号： F16J15/348 , B05B3/003
摘要： The present invention relates to a sealing cartridge for a hydroblasting tool and a hydroblasting tool. The sealing cartridge (13) for a hydroblasting tool (25), comprising a sealing body (30) comprising a first through hole (37), a first sealing body surface (30a) and a second sealing body surface (30b); a support (29) comprising a second through hole (38), a first support surface (29a) and a second support surface (29b); and a guide (32) comprising a first guide surface (32a) delimiting an opening (39) and a second guide surface (32b) disposed around the opening (39); wherein the first through hole (37), the second through hole (38) and the opening (39) are configured to be axially aligned; the first support surface (29a) is configured to connect with the first sealing body surface (30a); the second support surface (29b) is configured to connect with the second guide surface (32b); and the first guide surface (32a) is configured to connect with the second sealing body surface (30b).
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公开(公告)号：US12044316B2
公开(公告)日：2024-07-23
申请号：US17430352
申请日：2020-02-17
发明人： Andries Arie Tuk , Teunis Visser
IPC分类号： F16J15/34
CPC分类号： F16J15/3404 , F16J15/3408 , F16J15/3416 , F16J15/3428
摘要： The invention relates to a sealing assembly for the limitation of fluid flow along a rotatable shaft that is passed through a housing member that separates a high pressure side and a low pressure side, wherein the sealing assembly comprises:
a rotor with a sealing surface which essentially extends radially in relation to the shaft,
a flushing sealing system that extends between the rotor and the housing member, which sealing system is in contact with both the housing member and the sealing surface of the rotor to effect a sealing effect, wherein the flushing sealing system comprises an elastic sealing member that in use imposes a targeted compression force on the sealing surface.-
公开(公告)号：US12038087B2
公开(公告)日：2024-07-16
申请号：US17908690
申请日：2020-04-07
发明人： Hiroshi Suzuki , Yuichiro Tokunaga
IPC分类号： F16J15/34
CPC分类号： F16J15/3424
摘要： A sliding component includes a pair of sliding members being slidable relative to each other on sliding surfaces of the sliding members. One of the sliding surfaces includes a dimple group in which dimples are arranged in a radial direction and a circumferential direction, each of the dimples having an opening portion whose shape has a long axis and a short axis orthogonal to the long axis. A dimple angle formed by a radial axis passing through an intersection of the long axis and the short axis of the dimple and a rotational center of the sliding surface and the long axis changes in at least one of the radial direction and the circumferential direction of the one of the sliding surfaces.
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公开(公告)号：US20240209947A1
公开(公告)日：2024-06-27
申请号：US18329835
申请日：2023-06-06
发明人： Eric GREEN , William HAYWOOD
IPC分类号： F16J15/34
CPC分类号： F16J15/3472
摘要： A mechanical seal of the cartridge type. A rotary subassembly including a sleeve, the sleeve packed against and adapted to be in sealing disposition with a pump shaft of a pump; a stationary subassembly for attachment to a stuffing box of the pump, the stationary subassembly including a gland, wherein the gland has a front face and back face; and, a register defined within the gland front face, the register being an opening shaped to fit over a raised face of the stuffing box, thereby limiting side loading of the seal. In addition, a composite setting piece press-fitted into a bore between the bushing section and the drive collar, thereby allowing the seal to be preset in lieu of a screw or clip.
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公开(公告)号：US12021435B2
公开(公告)日：2024-06-25
申请号：US17479429
申请日：2021-09-20
CPC分类号： H02K5/124 , F16C33/7886 , F16J15/3464 , F16J15/3472 , H02K5/10 , H02K5/163 , H02K5/1735
摘要： A sealing assembly of an input shaft includes a support structure, a bearing assembly, and an input seal. The input seal including an input seal housing having a first portion and a second portion. The first portion is arranged adjacent the bearing assembly. At least one face plate anti-rotation pin is coupled to the input seal housing and positioned adjacent the input shaft. A face plate is positioned adjacent the second portion. The face plate is configured to directly contact the input shaft.
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