公开(公告)号：US20240418267A1

公开(公告)日：2024-12-19

申请号：US18815310

申请日：2024-08-26

Applicant: ROMAR INTERATIONAL LIMITED

Inventor： Martin McKenzie ,  Ross Mathieson ,  Malcolm Mackenzie

IPC: F16J15/3296 ,  E21B19/00 ,  E21B33/127 ,  F16J15/32 ,  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：US12044315B2

公开(公告)日：2024-07-23

申请号：US18172101

申请日：2023-02-21

Applicant: Trelleborg Sealing Solutions Germany GmbH

Inventor： Christoph Schuele ,  Martin Franz ,  Johan Strandberg

IPC: F16J15/3296 ,  F16J15/3208 ,  F16J15/3212 ,  F16J15/3236 ,  F16J15/34

CPC classification number: F16J15/3296 ,  F16J15/3208 ,  F16J15/3212 ,  F16J15/3236 ,  F16J15/3492

Abstract: A sealing device has a sensor system for condition monitoring. The sealing device includes a sealing ring with a dynamic sealing section for dynamically sealing abutment at a sealing surface of a machine part and a pretensioning ring for pretensioning the sealing section against the sealing surface having a first section and a second section. The second section can be deflected in a spring-elastic manner in an axial or radial direction relative to the central axis of the sealing device from a first position relative to the first section. The sensor system includes at least one measuring element arranged in the intermediate space on the pretensioning ring, which responds indirectly or directly to a deflection movement of the first section of the pretensioning ring. A sealing arrangement may have such a sealing device.

公开(公告)号：US20220325800A1

公开(公告)日：2022-10-13

申请号：US17638597

申请日：2020-08-27

Applicant: BURCKHARDT COMPRESSION AG

Inventor： Norbert FEISTEL

IPC: F16J15/3296 ,  F16J15/00

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：US20200047300A1

公开(公告)日：2020-02-13

申请号：US16487761

申请日：2018-02-21

Applicant: THODACON WERKZEUGMASCHINENSCHUTZ GMBH

Inventor： Vincent C Vorpahl

IPC: B23Q11/08 ,  B08B1/02 ,  B08B1/00 ,  B08B13/00 ,  B23Q17/00 ,  F16J15/3296

Abstract: The present invention relates to a scraper (14) for scraping a surface of a machine tool having a wear-indicating device (18, 20, 24, 30) for the scraper lip (16) of the scraper. At least one signal line (18) is embedded in the scraper lip (16) in such a manner that, upon reaching the wear limit (G), at least one section of the signal line (18) is exposed.

公开(公告)号：US10465799B2

公开(公告)日：2019-11-05

申请号：US15531056

申请日：2015-11-23

Applicant: Aktiebolaget SKF ,  SKF Economos Deutschland GmbH

Inventor： Defeng Lang ,  Muhammad Ahmer ,  Thomas Deigner ,  Jos Holsnijders ,  Sebastian Ziegler ,  Frank de Wit

IPC: G01M13/04 ,  F16J15/3296 ,  G01P15/18 ,  G01M13/005 ,  G01M13/045 ,  F16C33/78 ,  F16C41/00 ,  G01P1/02 ,  F16C19/52

Abstract: The invention provides a sealing assembly that includes an elastic seal lip having a movable part. The seal lip is configured to be attached to a first part of a machine and to be in sliding contact with a second part of the machine. It is proposed that at least one vibration sensor is fixed to the movable part of the seal lip.

公开(公告)号：US10288062B2

公开(公告)日：2019-05-14

申请号：US14219359

申请日：2014-03-19

Applicant: Kobe Steel, Ltd.

Inventor： Kenji Nagura ,  Hitoshi Takagi

IPC: B28C5/42 ,  F04B51/00 ,  F04B39/12 ,  F04B53/14 ,  F16J9/00 ,  F16J15/3296 ,  F16J15/56

Abstract: A gas compressor of the present invention includes a reciprocating member, an accommodation portion, and a sealing portion, and the accommodation portion includes a compression chamber that compresses a gas and a non-compression chamber that is separated from the compression chamber by the reciprocating member and the sealing portion. Further, since the compression chamber includes a suction line that suctions a hydrogen gas, a discharge line that discharges a compressed gas, a connection line that is connected to the accommodation portion and is used so that at least a part of a gas flows therethrough when a gas passing through the sealing portion from the compression chamber exists, a flowmeter that is provided in the connection line, and a determination unit that determines whether a flow amount measured by the flowmeter is equal to or larger than a predetermined threshold value, it is possible to easily determine the abrasion state of the sealing portion.

公开(公告)号：US20190017605A1

公开(公告)日：2019-01-17

申请号：US15650171

申请日：2017-07-14

Applicant: United Technologies Corporation

Inventor： Jonathan Logan Miller ,  Joseph G. Colucci ,  Colin D. Craig ,  Aneil S. Hegde ,  Michael M. Davis

IPC: F16J15/3296 ,  F16J15/3268

Abstract: A ring seal in a gas turbine engine includes a ring seal body, an axial sealing dam, a radial sealing dam, and at least one bleed slot. The ring seal body is annular in shape and has a first axial side, a second axial side, a radially outer side, and a radially inner side. The axial sealing dam is on the first axial side and is configured to provide a first sealing surface with a first component. The radial sealing dam is on the radially outer side and is configured to provide a second sealing surface with a second component radially outward from the radially outer side. The at least one bleed slot is on the second axial side and configured to allow fluid to pass through when the ring seal is incorrectly oriented such that the at least one bleed slot is adjacent to the first component.

公开(公告)号：US20180372224A1

公开(公告)日：2018-12-27

申请号：US15632941

申请日：2017-06-26

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Vigel Russalian

IPC: F16J15/3296 ,  F16J15/52

Abstract: A rotary valve seal for a coolant control valve is provided that offers improved sealing with a rotary valve body. The rotary valve seal includes a central axis, a cylindrical seal body, and a seal skeleton. The cylindrical seal body has a first stiffness and a first end that is configured with a radially outwardly extending flange. The seal skeleton, having a second stiffness and embedded within the cylindrical seal body, has a plurality of fingers circumferentially arranged within the flange. The second stiffness can be greater than the first stiffness. The plurality of fingers and flange can define alternating stiffness zones. The first end of the seal body and the flange define a bottom surface configured for sealing engagement with a rotary valve body. The rotary valve body can be shaped in the form of at least one spherical segment.

公开(公告)号：US10107337B2

公开(公告)日：2018-10-23

申请号：US15105980

申请日：2014-12-18

Applicant: AKTIEBOLAGET SKF

Inventor： Baozhu Liang ,  Jesko-Henning Tanke

IPC: F16C33/72 ,  F16J15/3232 ,  F16J15/16 ,  F16C33/78 ,  F16J15/3296 ,  F16C19/06

Abstract: A bearing assembly includes a bearing for supporting a first machine part relative to a second machine part, a seal assembly configured to seal a first space in a region of the bearing relative to a second space, a pressure equalization passage fluidically connecting the first space and the second space, a valve configured to open and close the pressure equalization passage, and a controller configured to control the valve.

公开(公告)号：US10065724B2

公开(公告)日：2018-09-04

申请号：US14395209

申请日：2012-04-17

Applicant: Arnoud De Kruijf ,  Rik Roemen ,  Minoru Takayasu ,  Bart Van Der Ven ,  Joost Van Eijnatten ,  Masahiko Yotsuyanagi

Inventor： Arnoud De Kruijf ,  Rik Roemen ,  Minoru Takayasu ,  Bart Van Der Ven ,  Joost Van Eijnatten ,  Masahiko Yotsuyanagi

IPC: F16J15/3296 ,  B63H23/32

Abstract: An arrangement for sealing a propeller shaft of a marine vessel are specifically applicable in preventing oil leakage via propeller shaft sealing in cases where the draught of a marine vessel is, for some reason, reduced beyond its ordinary value.