知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

665 records (took 0.032 seconds)

    ELASTOMER SPRING TYPE MECHANICAL SEAL
    1.
    发明公开
    ELASTOMER SPRING TYPE MECHANICAL SEAL 审中-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

    Applicant: A.W. Chesterton Company

    Inventor： Henri Vincent Azibert ,  Joseph K. Kaleshian

    IPC: F16J15/36

    CPC classification number: F16J15/36

    Abstract: 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.

    Mechanical seal
    3.
    发明授权
    Mechanical seal 有权

    公开(公告)号：US09927030B2

    公开(公告)日：2018-03-27

    申请号：US15022127

    申请日：2015-01-15

    Applicant: EAGLE INDUSTRY CO., LTD.

    Inventor： Akira Yoshino

    IPC: F16J15/34 ,  F16J15/36 ,  F16J15/38 ,  F04D29/12 ,  F16J15/16 ,  F04D1/00

    CPC classification number: F16J15/164 ,  F04D1/00 ,  F04D29/126 ,  F04D29/128 ,  F16J15/3448 ,  F16J15/3452 ,  F16J15/3464 ,  F16J15/348 ,  F16J15/36 ,  F16J15/38

    Abstract: The object of the present disclosure is to accomplish a stable sealing performance while maintaining the durability. A mating ring (120) includes a sliding portion (121) having a sliding surface that slides against a sealing ring (110) within an end surface on an atmosphere side (A) thereof in an axial direction of a shaft (200), and a retained portion (122) that extends from a radially outward end portion of the sliding portion (121) toward a sealed-fluid side (F) in the axial direction and is retained by a sleeve (130). A mechanical seal (100) includes an annular holder (500) that is fixed to the sleeve (130) receives pressure from an O-ring (140) that receives, from the sealed-fluid side (F) in the axial direction, a fluid pressure (P) of a fluid to be sealed that flew into a space created by a flange portion (132) of the sleeve (130) and the retained portion (122) of the mating ring (120).

    P04TU drive ring
    4.
    发明授权
    P04TU drive ring 有权

    公开(公告)号：US09915350B2

    公开(公告)日：2018-03-13

    申请号：US15121542

    申请日：2015-03-09

    Applicant: A.E.S ENGINEERING LTD

    Inventor： Stephen Cox ,  Thomas Broadbent

    IPC: F16J15/34 ,  F16J15/36

    CPC classification number: F16J15/3464 ,  F16J15/36 ,  F16J15/38

    Abstract: A mechanical seal includes an elastomeric member, a spring biasing member, a longitudinally floating first member, a longitudinally non-floating second member, a longitudinally floating third member and a longitudinally floating seal face. The elastomeric member is in sealing engagement with the seal face and the first and second members and the spring biasing member is longitudinally pointed between the seal face and the third member. The first and second members are longitudinally restrained and rotationally coupled by male longitudinally protruding portions engaging with female portions.

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

    公开(公告)号：US20170234434A1

    公开(公告)日：2017-08-17

    申请号：US15585254

    申请日：2017-05-03

    Applicant: NOK Corporation

    Inventor： Yuichi Shuto ,  Masahiro Seki

    IPC: F16J15/36 ,  B62D1/16 ,  F16J15/3232

    CPC classification number: F16J15/36 ,  B62D1/16 ,  F16J3/04 ,  F16J15/3204 ,  F16J15/3224 ,  F16J15/3232 ,  F16J15/52

    Abstract: A dust seal for sealing a gap between an opening and a shaft inserted through the opening includes a dust seal body in an annular shape and a bushing in an annular shape. The shaft is slidably inserted through the bushing. The dust seal body includes an attaching portion, a first accordion unit, and a second accordion unit. The first accordion unit and the second accordion unit are arranged side by side in a direction of an axis. The first accordion unit is integral with the attaching portion, is joined to the attaching portion at an outer periphery, and is fixed to the bushing at an inner periphery. The second accordion unit is fixed to the attaching portion at the outer periphery, and locked to the bushing at the inner periphery.

    DIAPHRAGM BELLOWS
    7.
    发明申请
    DIAPHRAGM BELLOWS 有权

    公开(公告)号：US20170175901A1

    公开(公告)日：2017-06-22

    申请号：US15379965

    申请日：2016-12-15

    Applicant: VAT Holding AG

    Inventor： Marc Wellner ,  Fabian Steger

    IPC: F16J15/36

    CPC classification number: F16J15/36 ,  F16J3/048

    Abstract: The diaphragm bellows includes a plurality of diaphragms (1) with outer edges (3) and inner edges (2), wherein diaphragms (1) that follow one another in the direction of the central longitudinal axis (5) of the diaphragm bellows are welded together alternately in the region of their inner edges (2) and in the region of their outer edges (3). A sliding-guidance device of the diaphragm bellows has at least two ring parts (10, 11). The at least two ring parts (10, 11) each extend through at most 180° in the circumferential direction about the longitudinal axis (5) of the diaphragm bellows and each have a guide portion (12) and a holding portion (13) protruding from the guide portion (12) in the direction of the longitudinal axis (5), the holding portion (13) projecting into an intermediate space (6) located between two adjacent diaphragms (1). The guide portion (12) extends radially outside the two adjacent diaphragms (1) between which the holding portion (13) projects, and has a guide face (16), directed away from the longitudinal axis (5) of the diaphragm bellows, for sliding guidance on the inner surface (15) of a tube (14) surrounding the diaphragm bellows at least along a part of its longitudinal extent.

    MECHANICAL SEAL
    8.
    发明申请
    MECHANICAL SEAL 有权

    公开(公告)号：US20170097095A1

    公开(公告)日：2017-04-06

    申请号：US15316894

    申请日：2015-06-02

    Applicant: EAGLE INDUSTRY CO., LTD.

    Inventor： Tetsuya IGUCHI

    IPC: F16J15/34 ,  F16J15/36

    CPC classification number: F16J15/3448 ,  F16J15/3476 ,  F16J15/36 ,  F16J15/366 ,  F16J15/46

    Abstract: A mechanical seal (100) is configured such that an annular sealed space (S1) is formed by a first bellows (141), a second bellows (151), and members respectively provided on both end sides of the first bellows (141) and the second bellows (151), and that the first bellows (141) and the second bellows (151) expand and contract in a central axial direction of a rotating shaft (200) in accordance with fluid pressure inside the sealed space (S1). The first bellows (141) and the second bellows (151) are arranged at positions distant to each other in the central axial direction, and are arranged such that a part of the first bellows (141) on a radially inward side and a part of the second bellows (151) on a radially outward side overlap when viewed in the central axial direction.

    REVERSE PRESSURE CAPABLE MECHANICAL SEAL
    9.
    发明申请
    REVERSE PRESSURE CAPABLE MECHANICAL SEAL 审中-公开

    公开(公告)号：US20170089467A1

    公开(公告)日：2017-03-30

    申请号：US14865803

    申请日：2015-09-25

    Applicant: Flowserve Management Company

    Inventor： Lionel A Young

    IPC: F16J15/34 ,  F01D25/18

    CPC classification number: F16J15/3412 ,  F01D11/003 ,  F01D11/005 ,  F01D25/183 ,  F05D2220/40 ,  F05D2240/55 ,  F16J15/36

    Abstract: A mechanical seal designed for gas applications minimizes leakage even when the pressure differential changes direction, such as during rapid deceleration of a turbocharger. The seal faces include both inner (ID) and outer (OD) diameter recessed features configured to admit gas between the faces from the inner and outer face diameters respectively. In embodiments, the ID features hydro-dynamically provide a pressurized gas cushion between the seal faces under normal conditions, and the OD features provide a cushion when the pressure differential is reversed. According to the embodiment, the ID and OD features can be provided in only one seal face, or distributed among both seal faces. For example, one seal face can include the ID features and the other the OD features. The ratio of the area covered by the ID and OD features, divided by the total seal face area, can be at least 0.75 or greater.

Patent Agency Ranking