公开(公告)号：US11879550B2

公开(公告)日：2024-01-23

申请号：US17532252

申请日：2021-11-22

申请人： STASSKOL GMBH

发明人： Felix Kuse ,  Dennis Kranert

IPC分类号： F16J15/34

CPC分类号： F16J15/3488

摘要： A seal for a rotating system with two sealing units which are arranged one behind the other along a main axis H, the sealing units each having a through-hole for a shaft and being in interlocking engagement with each other in the circumferential direction and at least one axial compression spring element being arranged between the sealing units.

公开(公告)号：US20230407971A1

公开(公告)日：2023-12-21

申请号：US18210290

申请日：2023-06-15

申请人： John Crane Inc.

发明人： Douglas J. Volden ,  Syed K. Niamathullah

IPC分类号： F16J15/34

CPC分类号： F16J15/3404

摘要： A mating ring for use in a dry gas seal and a dry gas seal. The mating ring includes a face that defines an inner diameter and an outer diameter. The face includes: a channel formed therein disposed between the inner diameter and the outer diameter; one or more inlet channels formed in the face that extend from the inner diameter to the channel; and one or more spiral grooves in fluid communication with the channel that extend from the channel toward the inner diameter. Alternatively, the one or more inlet channels can extend from the outer diameter to the channel and one or more spiral grooves can extend from the channel toward the outer diameter

公开(公告)号：US20230400101A1

公开(公告)日：2023-12-14

申请号：US18033447

申请日：2021-10-19

申请人： EagleBurgmann Germany GmbH & Co. KG

发明人： Ferdinand Werdecker ,  Florian Bauer

IPC分类号： F16J15/34

CPC分类号： F16J15/3464 ,  F16J15/3436

摘要： The invention relates to a mechanical seal arrangement comprising a mechanical seal (2) having a rotating sliding ring (3) and a stationary sliding ring (4) defining a sealing gap (5) between the sealing surfaces (30, 40) thereof, a slide ring carrier (6) for holding the stationary sliding ring (4), an axially movable thrust ring (7) arranged on a rear side (43) of the stationary sliding ring (4) between the slide ring carrier (6) and the stationary sliding ring, a pretensioning device (8) arranged between the thrust ring (7) and the slide ring carrier (6) to pretension the stationary sliding ring (4) in the axial direction X-X of the mechanical seal arrangement, and an anti-rotation device (10) to keep the stationary sliding ring (4) rotationally fixed and axially movable, the anti-rotation device (10) having a first transmission device (11) for transmitting force between the sliding ring carrier (6) and the thrust ring (7) and a second transmission device (12) for transmitting force between the thrust ring (7) and the stationary sliding ring (4), and wherein a locking element (13) is arranged on the first transmission device (11) to secure the thrust ring (7) against axial disengagement.

公开(公告)号：US11821522B2

公开(公告)日：2023-11-21

申请号：US17429811

申请日：2019-12-17

申请人： EagleBurgmann Germany GmbH & Co. KG

发明人： Peter Droscher ,  Robert Reischl ,  Thomas Stemplinger ,  Carsten Scholz

IPC分类号： F16J15/34 ,  F16J15/38

CPC分类号： F16J15/3436 ,  F16J15/3464 ,  F16J15/38 ,  F16J15/3452

摘要： The invention relates to a mechanical seal assembly comprising a mechanical seal (2) with a rotating slide ring (3) and a stationary slide ring (4) defining a seal gap (5) therebetween, a pretensioning device (6) which biases the stationary slide ring (4) in the axial direction (X-X) of the slide ring seal arrangement, a support ring (7) which is arranged on the stationary slide ring (4), the support ring (7) being axially movable relative to the stationary slide ring (4) the pretensioning device (6) being arranged between the support ring (7) and the stationary slide ring, a fixing device (8) which is arranged for axially movable fixing the support ring (7) to a stationary component, a stop (9) which limits a distance (W1) by which the axially movable support ring (7) can be moved, and a secondary seal (10) which is arranged to seal between the support ring (7) and the stationary component.

公开(公告)号：US20230366468A1

公开(公告)日：2023-11-16

申请号：US18025995

申请日：2021-08-24

申请人： EagleBurgmann Germany GmbH & Co. KG

发明人： Joachim Otschik ,  Michael Müller ,  Klaus Lang ,  Rolf Johannes ,  Armin Laxander

IPC分类号： F16J15/34

CPC分类号： F16J15/3492

摘要： The invention relates to a method of operating a mechanical seal assembly (1) having a mechanical seal (2) with a rotating sliding ring (3) and a stationary sliding ring (4), defining a sealing gap (5) between the sliding surfaces thereof, comprising the steps of: collecting operating data and/or environmental data of the mechanical seal (2), transmitting the collected operating data and/or environmental data to a digital twin (31) of the mechanical seal (2), simulating and monitoring the operation of the mechanical seal (2) using the digital twin (31) based on the transmitted operating data and/or environmental data of the mechanical seal (2), and retransmitting a simulation result and/or data of the digital twin.

公开(公告)号：US11796063B2

公开(公告)日：2023-10-24

申请号：US17332797

申请日：2021-05-27

申请人： Caterpillar Inc.

发明人： Keith Joseph Harmeyer ,  Elmer S. Zanoria ,  Daniel Joshua Smith

IPC分类号： F16J15/32 ,  F16J15/3228 ,  F16J15/3248 ,  F16J15/34

CPC分类号： F16J15/3228 ,  F16J15/3248 ,  F16J15/348

摘要： A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.

公开(公告)号：US11788541B2

公开(公告)日：2023-10-17

申请号：US17323198

申请日：2021-05-18

申请人： Dover Pumps & Process Solutions Segment, Inc.

发明人： Vitali Kvachnev

IPC分类号： F16J15/447 ,  F04D29/10 ,  F16J15/34

CPC分类号： F04D29/104 ,  F16J15/3484 ,  F16J15/4474 ,  F05D2240/55

摘要： A gas processing system includes a vessel defining a cavity for processing a gas. The vessel includes a process gas inlet for accepting process gas at an input pressure, and a process gas outlet for discharging process gas at an output pressure. The gas processing system further includes a shaft coupled to the vessel and a multistage sealing system comprising multiple seals spaced along the shaft. The shaft is configured to transfer mechanical energy to or from gas in the vessel. Each adjacent pair of seals defines a corresponding pressure space therebetween. One of the pressure spaces is an equalizing pressure space in hydraulic communication with the process gas inlet via a flow line, such that in operation, pressure in the equalizing pressure space is maintained at an equalized pressure with respect to a pressure in the process gas inlet.

公开(公告)号：US11767916B2

公开(公告)日：2023-09-26

申请号：US17428262

申请日：2020-02-12

申请人： Eagle Industry Co., Ltd.

发明人： Tadatsugu Imura ,  Hiroshi Suzuki ,  Iwa Ou ,  Yuichiro Tokunaga

IPC分类号： F16J15/34 ,  F16J15/3256

CPC分类号： F16J15/3256 ,  F16J15/3424

摘要： To provide sliding components capable of suppressing dynamic pressure generation mechanisms from being deformed and damaged due to wear of sliding surfaces. In a pair of sliding components which is disposed at a relatively rotating position of a rotary machine, has a plurality of dynamic pressure generation mechanisms formed in a sliding surface of the sliding component by recessed portions, and is formed in an annular shape to seal a sealed fluid by sliding the sliding surfaces of the sliding components. A surface region in the periphery of the recessed portions of the sliding component is formed to be separated from an opposite region of the sliding component.

公开(公告)号：US20230235839A1

公开(公告)日：2023-07-27

申请号：US18095224

申请日：2023-01-10

申请人： Deublin Company, LLC

发明人： Anton A. Petrou

IPC分类号： F16L27/08 ,  F16J15/34

CPC分类号： F16L27/082 ,  F16J15/34

摘要： A rotary union includes a non-rotating component forming a bore, and a non-rotating seal carrier slidably disposed in the bore. A pressure sleeve is slidably disposed in the bore between the non-rotating component and the non-rotating seal carrier. A non-rotating seal member is disposed on the non-rotating seal carrier, and a rotating seal carrier has a rotating seal member disposed thereon. Wherein the rotating seal member is disposed in opposed relation to the non-rotating seal member such that a sliding mechanical face seal is formed between the non-rotating and rotating seal members when the non-rotating seal carrier slides towards the rotating seal carrier in the presence of fluid pressure.

公开(公告)号：US20230232841A1

公开(公告)日：2023-07-27

申请号：US18124348

申请日：2023-03-21

申请人： DIOSNA Dierks & Söhne GmbH

发明人： Hashem GHANI ,  Stefan BENSMANN

IPC分类号： A21C1/14 ,  A21C1/02 ,  B01F27/807 ,  B01F27/85 ,  B01F27/922 ,  F16J15/34

CPC分类号： A21C1/1415 ,  A21C1/02 ,  B01F27/85 ,  B01F27/807 ,  B01F27/922 ,  F16J15/3464 ,  B01F2035/351

摘要： A kneading machine for food doughs includes a kneading bowl, one or more tool shafts rotatably mounted in a housing, a kneading tool attachable to the tool shaft and insertable into the kneading bowl, and a kneading space,each tool shaft being assigned a seal carrier fixed to the housing and which carries a seal arrangement to seal the tool shaft with respect to the seal carrier, the seal carrier being spaced from the tool shaft by a first gap outside the kneading space and which communicates directly with an escape space for food particles escaping out of the kneading space.