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公开(公告)号：US20240353006A1
公开(公告)日：2024-10-24
申请号：US18651207
申请日：2024-04-30
申请人： Inpro/Seal LLC
IPC分类号： F16J15/18 , F16J15/44 , F16J15/447 , F16J15/54
CPC分类号： F16J15/187 , F16J15/441 , F16J15/4472 , F16J15/54
摘要： An illustrative embodiment of a shaft seal assembly generally includes a first stator, a second stator, and a throttle member. In one illustrative embodiment, the second stator may be formed with a main body and an access plate positioned radially interior with respect to a portion of the first stator. The first stator and second stator may engage one another about a semi-spherical interface comprised of a convex surface on the second stator and a concave surface on the first stator. The second stator may include an internal channel in which a throttle member may be positioned, wherein a radially interior surface of the throttle member may be positioned a shaft.
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公开(公告)号：US12116896B1
公开(公告)日：2024-10-15
申请号：US18189408
申请日：2023-03-24
发明人： Grant Robert Portune , Steven Douglas Johnson , Mallikarjun Metri , Ajith Jogi , Pratish Patil , Nageswar Rao Ganji , Rahul Anil Bidkar , Prateek Jalan , Ravindra Shankar Ganiger , David Raju Yamarthi , Narendra Anand Hardikar , Chandrashekhar Kandukuri
CPC分类号： F01D11/001 , F01D11/025 , F01D11/04 , F01D25/22 , F16J15/40 , F16J15/445 , F16J15/164
摘要： A turbine engine is provided. The gas turbine engine defines a radial direction and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly comprising a plurality of seal segments, the plurality of seal segments having a seal segment, the seal segment having a seal face configured to form a fluid bearing with the rotor; and a seal support assembly, the seal support assembly comprises a pneumatic engagement assembly operable to bias the seal segment along the radial direction during operation of the turbine engine.
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公开(公告)号：US12098751B2
公开(公告)日：2024-09-24
申请号：US18201616
申请日：2023-05-24
发明人： James Hargraves , Arman Sarwar , James Myers
CPC分类号： F16C33/783 , B60B35/18 , F16C33/782 , F16J15/44 , B60B2900/511
摘要： A two-piece seal assembly includes first and second seal subassemblies, each shaped as a semicircular ring. The first seal subassembly has a first stator subassembly and a first rotor subassembly that cooperate to form a first semicircular segment of a labyrinth. The second seal subassembly has a second stator subassembly and a second rotor subassembly that cooperate to form a second semicircular segment of the labyrinth. The first and second stator subassemblies, when affixed to each other, form a ring-shaped stator that encircles a rotation axis. The first and second rotor subassemblies, when affixed to each other, form a ring-shaped rotor that encircles the rotation axis and can rotate about the rotation axis relative to the stator. When the first and second seal subassemblies are affixed to each other, the first and second semicircular segments meet such that the labyrinth encircles the rotation axis.
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公开(公告)号：US12055223B2
公开(公告)日：2024-08-06
申请号：US17868095
申请日：2022-07-19
申请人： DENSO CORPORATION
IPC分类号： F16K1/226 , F02M26/70 , F16J15/3272 , F16J15/44
CPC分类号： F16K1/2261 , F02M26/70 , F16J15/3272 , F16J15/441
摘要： A seal ring of a valve element includes a one-end joint forming portion and an other-end joint forming portion. The one-end joint forming portion includes a one-end first contact portion and a one-end second contact portion located on one side of the one-end first contact portion in an axial direction and extending in a circumferential direction beyond the one-end first contact portion. The other-end joint forming portion includes an other-end first contact portion and an other-end second contact portion located on the other side of the other-end first contact portion in the axial direction and extending in the circumferential direction beyond the other-end first contact portion. An inner diameter of the seal ring when the one-end first contact portion separates from the other-end second contact portion is less than an outer diameter of the valve element.
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公开(公告)号：US20230323953A1
公开(公告)日：2023-10-12
申请号：US17716661
申请日：2022-04-08
发明人： Conway Chuong , Ross C. Wilson
IPC分类号： F16J15/44
CPC分类号： F16J15/442 , F16J15/445
摘要： An assembly is provided for rotational equipment. This assembly includes a seal device, a ring structure and a fastener. The seal device includes a plurality of seal shoes, a seal base and a plurality of spring elements. The seal shoes are arranged around a centerline in an annular array. The seal shoes include a first seal shoe. The seal base circumscribes the annular array. The spring elements include a first spring element. The first spring element connects and extends between the first seal shoe and the base. The ring structure is axially adjacent the seal device. The ring structure includes a fastener aperture extending axially through the ring structure. The fastener is mated with the fastener aperture and abutted axially against the seal device.
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公开(公告)号：US11686529B2
公开(公告)日：2023-06-27
申请号：US16831218
申请日：2020-03-26
申请人： Shawn Robert Sutton
发明人： Shawn Robert Sutton
IPC分类号： F27B7/24 , F16J15/32 , F16J15/3224 , F16J15/44 , F27D99/00
CPC分类号： F27B7/24 , F16J15/32 , F16J15/3224 , F16J15/442 , F27D99/0073
摘要： A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end. The rotary seal assembly includes a flexible framework arrangement that attaches to the end. The rotary seal assembly includes a riding surface that engages the drum as the drum rotates. The riding surface includes a series of seal segments with each seal segment having a mounting eye positioned to eliminate a fulcrum point at the mounting eye. The rotary seal assembly includes a seal that is supported by the riding surface and is in essentially 360-degree contact with the drum when it is rotating and seals the opening between the drum when it is rotating in the hood to prevent fluid flow into and out of the end. A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end, includes redundant tension springs which form a complete 360-degree circle around the drum. A method for sealing an opening formed between a drum and a hood.
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公开(公告)号：US11674402B2
公开(公告)日：2023-06-13
申请号：US16202898
申请日：2018-11-28
发明人： Michael G. McCaffrey
CPC分类号： F01D11/025 , F01D11/001 , F16J15/442 , F16J15/445 , F02C7/28 , F05D2220/321 , F05D2240/55
摘要： A hydrostatic advanced low leakage seal configured to be disposed between relatively rotatable components. The seal includes a base. The seal also includes a shoe extending circumferentially. The seal further includes a radially outer beam operatively coupling the shoe to the base. The seal yet further includes a radially inner beam operatively coupling the shoe to the base, wherein one of the radially inner beam and the radially outer beam is oriented to be angled relative to the other of the radially inner and outer beam.
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公开(公告)号：US11635147B2
公开(公告)日：2023-04-25
申请号：US16896316
申请日：2020-06-09
申请人： NOK CORPORATION
发明人： Yusuke Yoshida , Koji Watanabe
IPC分类号： F16J15/44 , F16J15/16 , F16J15/3272
摘要： The seal ring is annular around an axis x and includes an annular outer peripheral surface facing an outer periphery side, and a plurality of recessed parts. The recessed parts are formed in such a way as to be spaced apart from each other in a circumferential direction and are recessed from the outer peripheral surface toward an inner periphery side. The recessed parts expand, in the axis x direction, from one side surface to a position which does not reach another side surface. The outer peripheral surface includes a annular contact surface between the another side surface and the position, and rib surfaces respectively between mutually neighboring recessed parts in the circumferential direction. Each of the rib surfaces extends between the one side surface and the position in the axis x direction.
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公开(公告)号：US11619238B2
公开(公告)日：2023-04-04
申请号：US16098559
申请日：2017-04-25
申请人： KSB SE & Co. KGaA
发明人： Alexander Boehm , Stephan Braun , Stephan Bross , Holger Rauner , Adrian Stein , Tim Richter
摘要： A sealing arrangement for a centrifugal pump is provided. The sealing arrangement permits a sealing gap between a rotating element such as a pump impeller and a non-rotating element such as a pump casing to be minimized, while protecting against element wear from gap reduction and element contact, particularly during transient operation such as pump start up. At least one of the rotating element and the non-rotating element is provided with a plurality of movably mounted bodies configured to rotate and maintain separate the rotating and non-rotating elements when the sealing gap is reduced. The elements and the bodies may be formed in an additive manufacturing process.
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公开(公告)号：US11543031B2
公开(公告)日：2023-01-03
申请号：US16588197
申请日：2019-09-30
申请人： Inpro/Seal LLC
IPC分类号： F16J15/44 , F16J15/18 , F16J15/54 , F16J15/447
摘要： An illustrative embodiment of a shaft seal assembly generally includes a first stator, a second stator, and a throttle member. In one illustrative embodiment, the second stator may be formed with a main body and an access plate positioned radially interior with respect to a portion of the first stator. The first stator and second stator may engage one another about a semi-spherical interface comprised of a convex surface on the second stator and a concave surface on the first stator. The second stator may include an internal channel in which a throttle member may be positioned, wherein a radially interior surface of the throttle member may be positioned a shaft.
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