ELASTOMER SPRING TYPE MECHANICAL SEAL
    2.
    发明公开

    公开(公告)号:US20230258267A1

    公开(公告)日:2023-08-17

    申请号:US18111373

    申请日:2023-02-17

    IPC分类号: F16J15/36

    CPC分类号: F16J15/36

    摘要: A mechanical seal assembly having a gland assembly, a rotary seal ring, a stationary seal ring, a sleeve assembly having a flange portion for mounting the rotary seal ring, a cover sealing element for seating over the flange portion and contacting a portion of the rotary seal ring, and an energizer sealing element axially spaced from the cover sealing element for sealing a portion of the stationary seal ring and the gland assembly and for providing an axial biasing force to the stationary seal ring.

    Sealing system for a moving shaft

    公开(公告)号:US11454323B2

    公开(公告)日:2022-09-27

    申请号:US16209398

    申请日:2018-12-04

    摘要: A sealing system includes a shaft seal plate, a seal guide having a tab, and a shaft seal coupled to the seal guide. A guide slot is formed in the shaft seal plate, and the tab extends into the guide slot. The shaft seal is configured to form and substantially maintain a seal at an axle bar as the axle bar rotates and pivots. The seal guide is configured to translate relative to the shaft seal plate as the axle bar pivots, and the tab is configured to block a rotation of the seal guide and the shaft seal relative to the shaft seal plate as the axle bar rotates.

    SEALING DEVICE
    4.
    发明申请

    公开(公告)号:US20210131567A1

    公开(公告)日:2021-05-06

    申请号:US17043459

    申请日:2019-06-25

    申请人: NOK CORPORATION

    发明人: Atsushi SUZUKI

    IPC分类号: F16J15/36

    摘要: A sealing device seals a gap between a housing and a rotational shaft located in a shaft hole provided in the housing. The sealing device includes: a mounted part that is to be mounted on the shaft hole; an inner annular part; a seal lip that is to be in contact with the outer peripheral surface of the rotational shaft; a bellows part connecting the mounted part with the inner annular part; a sound insulation ring fixed to the mounted part; and a circular annular sound insulation lip projecting from the inner annular part or the bellows part toward the sound insulation ring. The sound insulation lip protrudes obliquely radially outward. The sound insulation ring includes a circular annular part with which the distal end of the sound insulation lip is in contact. The circular annular part of the sound insulation ring is inclined with respect to an axial direction of the shaft hole such that the distance between an outer portion of the circular annular part and the inner annular part when projected in the axial direction of the shaft hole is greater than the distance between an inner portion of the circular annular part and the inner annular part when projected in the axial direction.

    MECHANICAL SEAL
    5.
    发明申请
    MECHANICAL SEAL 审中-公开

    公开(公告)号:US20200300368A1

    公开(公告)日:2020-09-24

    申请号:US16897030

    申请日:2020-06-09

    摘要: A mechanical seal assembly has rotational and stationary sealing members) and a drive unit, which is axially adjacent one of the sealing members. An energizing member urges the drive unit towards the sealing members. A retainer axially and radially retains one of the sealing members. The drive unit is in contact with one of the rotational and stationary members by way of contacting surfaces which are in the range of 1 and 20 light bands of flatness, inclusive.

    Mechanical seal arrangement with a release protection device

    公开(公告)号:US10584794B2

    公开(公告)日:2020-03-10

    申请号:US15737025

    申请日:2016-03-22

    IPC分类号: F16J15/34 F16J15/36

    摘要: The invention relates to a mechanical seal arrangement, comprising a rotating slide ring (2) and an stationary slide ring (3), which delimit a sealing gap (4) in between them, wherein the rotating slide ring (2) has a radially inward facing ledge (20) with a contact surface (21), a bellows element (10) for refitting the rotating slide ring (2) in an axial direction (X-X) of the mechanical seal arrangement, and a release protection device (5) for the rotating slide ring (2), wherein the release protection device (5) comprises an inner sleeve (6) with a radially outward facing web (60) that restricts a movement of the rotating slide ring (2) in the axial direction (X-X), and wherein the rotating slide ring (2) is arranged on the inner sleeve (6) so as to be freely movable in the axial direction (X-X).

    WIDE DIFFERENTIAL PRESSURE RANGE AIR RIDING CARBON SEAL

    公开(公告)号:US20190162311A1

    公开(公告)日:2019-05-30

    申请号:US16265484

    申请日:2019-02-01

    发明人: Nathan A. Lewis

    摘要: An exemplary carbon seal assembly generally may include a stator fixable to a static component, such as a mechanical housing of a gas turbine engine, and a rotor fixable to a rotating component, such as a shaft of the gas turbine engine, where the rotating component is rotatable relative to the static component. The carbon seal assembly may also include a carbon ring and a spring attached thereto positioned between the stator and the rotor, where the spring may be configured to move the carbon ring fore and aft between the stator and the rotor. The carbon seal assembly may further include a diaphragm operatively attached to stator and to the carbon ring and spring combination.