公开(公告)号：US20170292610A1

公开(公告)日：2017-10-12

申请号：US15374015

申请日：2016-12-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok LEE ,  Eo Jin KIM ,  Jeon Kook LEE

IPC: F16J15/3288 ,  F16C33/76 ,  F16J15/3296

CPC classification number: F16J15/3288 ,  F16C33/7886 ,  F16C2202/36 ,  F16C2233/00 ,  F16C2360/23 ,  F16J15/00 ,  F16J15/3296

Abstract: An oil sealing device for preventing a leakage of an oil of a bearing which supports a rotary shaft of a rotating machine has a brush member having a plurality of bristles in contact with the rotary shaft, and an actuator configured to move the brush member in a length direction of the rotary shaft, wherein a sloped surface having different heights along a length direction of the rotary shaft is formed at the rotary shaft, and wherein when the bristles are worn, the actuator moves the brush member in a length direction of the rotary shaft so that the bristles comes into contact with the sloped surface.

公开(公告)号：US20170059042A1

公开(公告)日：2017-03-02

申请号：US15042193

申请日：2016-02-12

Applicant: Coldwater Group, Inc.

Inventor： William David Withers ,  Thomas S. Gardner ,  John O. Statham

IPC: F16J15/3296 ,  F16J15/324 ,  D21F1/48 ,  F16J15/3244

CPC classification number: F16J15/3296 ,  D21F3/10 ,  F16J15/324 ,  F16J15/3244

Abstract: Sealing systems and related methods are provided. In this regard, a representative sealing system includes: an elongated seal having a contact surface configured to form an airtight seal with an inner surface of the drum; contact sensor circuitry configured to provide an electrical signal containing information indicative of direct contact between the seal and the inner surface of the drum; and a control actuator configured to direct a flow of lubricant responsive to receiving the information from the contact sensor indicating direct contact such that the flow of lubricant forms a film of lubricant between the contact surface and the inner surface of the drum to prevent direct contact between the seal and the drum.

Abstract translation: 提供密封系统和相关方法。 在这方面，代表性的密封系统包括：细长密封件，其具有构造成与滚筒的内表面形成气密密封的接触表面; 接触传感器电路，其被配置为提供包含指示所述密封件和所述滚筒的内表面之间的直接接触的信息的电信号; 以及控制致动器，其被配置为响应于从所述接触传感器接收到指示直接接触的信息来引导润滑剂流，使得润滑剂的流动在所述接触表面和所述滚筒的内表面之间形成润滑剂膜，以防止 密封和鼓。

公开(公告)号：US5233862A

公开(公告)日：1993-08-10

申请号：US740812

申请日：1991-08-06

Applicant: Alexander Longree

Inventor： Alexander Longree

IPC: F16J15/44 ,  F16J15/14 ,  F16J15/16 ,  F16J15/3296 ,  F16J15/34 ,  G01L3/14 ,  G01L5/00

CPC classification number: F16J15/3296 ,  F16J15/162

Abstract: A configuration for sealing off a duct gap between a housing wall and a shaft includes a sealing ring surrounding the shaft to be set into rotation relative to the housing wall. The sealing ring is sealed off with respect to the housing wall and the shaft. The sealing ring is displaceable relative to the housing wall and is incapable of being set into rotation by the shaft. At least one spring element is to be placed under a mechanical strain by a torque exerted upon the sealing ring by the rotation of the shaft. The strain is determined and a report is issued, if the strain deviates substantially from a predeterminable normal value.

Abstract translation: 用于密封壳体壁和轴之间的管道间隙的构造包括围绕轴的密封环，其相对于壳体壁被设定为旋转。 密封环相对于壳体壁和轴被密封。 密封环相对于壳体壁可位移，并且不能被轴旋转。 至少一个弹簧元件将通过轴的旋转施加在密封环上的扭矩在机械应变下放置。 如果应变基本上偏离可预定的正常值，则确定应变并发出报告。

公开(公告)号：US3271995A

公开(公告)日：1966-09-13

申请号：US32406863

申请日：1963-11-15

Applicant: GOETZEWERKE

Inventor： HERMANN BAUMLER

IPC: F16J15/3296 ,  G01L1/00 ,  G01M13/00 ,  G01N3/08

CPC classification number: F16J15/3296 ,  G01L1/00 ,  G01M13/005 ,  G01N3/08

公开(公告)号：US11852243B2

公开(公告)日：2023-12-26

申请号：US17638597

申请日：2020-08-27

Applicant: BURCKHARDT COMPRESSION AG

Inventor： Norbert Feistel

IPC: F16J15/3296 ,  F16J15/00

CPC classification number: F16J15/3296 ,  F16J15/004

Abstract: A method for monitoring the condition of a piston rod sealing system of a piston compressor, the system having at least two annular chambers arranged one behind the other in a longitudinal direction and each having a sealing element arranged therein. A piston rod running through the sealing elements and the annular chambers is moved back and forth in the longitudinal direction, sealed by the sealing elements. The system has an inlet side and an outlet side, between which a difference in pressure occurs, and said difference in pressure has static and dynamic pressure component. When there is leakage gas in the annular chambers, at least the dynamic pressure component of the leakage gas is measured in the piston rod sealing system. A change in the condition of at least one of the sealing elements is determined from a change in the dynamic pressure component as a function of time.

公开(公告)号：US20230304582A1

公开(公告)日：2023-09-28

申请号：US18020886

申请日：2021-08-06

Applicant: ANDRITZ OY

Inventor： Mikko PESONEN ,  Jarkko HYTÖNEN ,  Simo KARJALAINEN ,  Harri QVINTUS

IPC: F16J15/3296 ,  D21C9/06

CPC classification number: F16J15/3296 ,  D21C9/06

Abstract: An arrangement for measuring the distance between at least one seal bar (20) and a rotating drum (10) of a drum displacement washer, including at least one sensor element (30) positioned inside the rotating drum (10) and configured to provide a signal indicative of the distance between the outer surface of the rotating drum (10) and the at least one seal bar (20); and a signal transfer element (50) configured to transfer the signal outside the rotating drum (10).

公开(公告)号：US20230003303A1

公开(公告)日：2023-01-05

申请号：US17940370

申请日：2022-09-08

Applicant: Goodrich Actuation Systems SAS

Inventor： Arnauld Hervieux ,  Bastien Le Riguer

IPC: F16J15/34 ,  F16J15/44 ,  F15B15/14 ,  F16J15/3296

Abstract: An abradable seal includes an outer ring arrangement and an energiser for urging said outer ring arrangement against an opposing surface, wherein an outermost surface of said outer ring arrangement defines a sealing surface of said abradable seal; wherein said outer ring arrangement is configured such that after a first period of operation said sealing surface suddenly transitions from having a relatively large surface area to having a relatively small surface area, so as to cause a sudden increase in internal leakage across the seal at said transition.

公开(公告)号：US11255438B2

公开(公告)日：2022-02-22

申请号：US16766753

申请日：2018-08-13

Applicant: Carl Freudenberg KG

Inventor： Olaf Nahrwold ,  Stefan Sindlinger ,  Boris Traber ,  Sascha Moeller

IPC: F16J15/3296 ,  F16J15/3216 ,  F16J15/3284

Abstract: A seal arrangement for sealing a gap between a machine element comprising a shaft and a housing includes: at least one sealing element formed, at least partially, from polymeric material. The at least one sealing element is of annular design and is made of PTFE. The at least one sealing element has at least one first annular element and at least one second annular element. The at least one first element is electrically conductive and the at least one second element is electrically insulating. The at least one first element is arranged axially adjacently to the at least one second element. The at least one sealing element is provided with electrically conductive contact elements. The housing has an installation space forming an annular groove for the at least one sealing element. The installation space is provided with a lining forming an insulation.

公开(公告)号：US20220034406A1

公开(公告)日：2022-02-03

申请号：US17290436

申请日：2019-10-31

Applicant: ROMAR INTERNATIONAL LIMITED

Inventor： Martin Mckenzie ,  Ross Mathieson ,  Malcolm Mackenzie

IPC: F16J15/3296 ,  F16J15/48 ,  E21B19/00 ,  G01M3/28 ,  G01M3/32

Abstract: The invention in provides an apparatus, system and method of monitoring a sealing device. The apparatus comprises an inlet configured to receive pressurised fluid from a seal activation fluid pressure source and an outlet configured to be connected to a sealing device to deliver pressurised fluid to a seal element of the sealing device to energise the sealing device in use. A fluid barrier is disposed between the inlet and the outlet and is operable to isolate the inlet from the outlet. A fluid chamber is defined between the fluid barrier and the outlet, and the apparatus comprises means for detecting a change in condition in the fluid chamber indicative of a change in volume of the seal element of the sealing device.

公开(公告)号：US20200302256A1

公开(公告)日：2020-09-24

申请号：US16824053

申请日：2020-03-19

Applicant: Newman Sanitary Gasket Company

Inventor： David W. J. Newman

IPC: G06K19/07 ,  F16J15/3296

Abstract: The present sealing member has a body 3 and an extension 2 comprised of moldable plastic and/or curable elastomeric polymeric material. One or more radio frequency identification (RFID) transponders 1 is/are incorporated according to the present method into a preform of the extension and then molded, cured and/or cooled to embed the transponder 1 uniquely, permanently, and accessibly.