公开(公告)号：US10054184B2

公开(公告)日：2018-08-21

申请号：US15292896

申请日：2016-10-13

申请人： Francesco Scaramozzino ,  Alberto Dequino

发明人： Francesco Scaramozzino ,  Alberto Dequino

IPC分类号： F16F9/36 ,  F16F15/14 ,  F15B15/14 ,  F16J15/3232 ,  F16J15/3252 ,  F16J15/56

CPC分类号： F16F9/362 ,  F15B15/1461 ,  F16F9/363 ,  F16F2224/02 ,  F16F2224/0208 ,  F16F2224/025 ,  F16F2230/30 ,  F16J15/3232 ,  F16J15/3252 ,  F16J15/56

摘要： A guiding and sealing unit for a shock absorber rod, including a bushing and a sealing assembly including a sealing ring made of an elastomeric material and having at least one annular lip that projects radially and axially towards an axis of symmetry (A) of the unit, and an annular shield that supports and is integral with the sealing ring is provided. The annular shield is formed by a metallic sleeve having a first axial end portion that integrally supports the sealing ring, and from which the annular lip extends in a cantilever fashion inside the metallic sleeve, and a second end portion that integrally houses the annular bushing inside itself.

公开(公告)号：US20180223880A1

公开(公告)日：2018-08-09

申请号：US15743042

申请日：2016-09-23

申请人： KYB CORPORATION

发明人： Norikazu OOKI

IPC分类号： F15B20/00 ,  F16F9/36 ,  F16J15/18 ,  F16J15/00

CPC分类号： F15B20/005 ,  F15B15/1461 ,  F15B19/005 ,  F16F9/36 ,  F16F9/362 ,  F16J15/002 ,  F16J15/18 ,  F16J15/3296 ,  G01M3/36 ,  G01M3/40 ,  G01M13/005

摘要： A liquid leakage detection device according to the present invention includes a sliding contact member (S) that includes an elastic portion (10), is movable with respect to a cylinder (1) filled with liquid in an axial direction, and is in sliding contact with an outer periphery of a rod (2) movable into/out from the cylinder (1), and a detection part (D) configured to detect deformation of the elastic portion (10) of the sliding contact member (S).

公开(公告)号：US20180163371A1

公开(公告)日：2018-06-14

申请号：US15835686

申请日：2017-12-08

申请人： KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

发明人： Jung San CHO ,  Sang Deok PARK ,  Byung Yun PARK

IPC分类号： E02F9/22 ,  F15B15/14 ,  F15B15/08

CPC分类号： E02F9/2203 ,  E02F9/225 ,  E02F9/226 ,  E02F9/2264 ,  F15B15/061 ,  F15B15/084 ,  F15B15/088 ,  F15B15/1428 ,  F15B15/1452 ,  F15B15/1461

摘要： The present invention addresses the technical problem of providing an actuator which is provided to prevent leakage through a rod in a hydraulic or pneumatic cylinder-type actuator, and in which an existing sealing member may be used, and in particular, a cable (wire) may be used as a rod for solving the problem regardless of surface roughness thereof. An actuator for solving the above-mentioned problem in accordance with the present invention includes: a cylinder having an inner portion filled with a fluid and a front cover for closing a front end portion thereof; a piston displaced inside the cylinder by the fluid; a sealing member having one end portion fixed to the piston and the other end portion fixed to the front cover; and an operation member inserted in the sealing member and having one end portion fixed to the piston and the other end portion extending out of the front cover. In the present invention, due to the above-mentioned configuration, the sealing of a fluid (f) is already achieved by the sealing member, and thus, the operation member serves a moving function if only slipping relative to the sealing member in the sealing member. Accordingly, a rod or a cable does not need to move while being in close contact with the sealing member. Therefore, as in conventional arts, the present invention has merits in that a remarkable improvement is achieved in terms of wear of the sealing member, and it is not necessary to smoothly and precisely process the rod and to smoothly and hardly coat the cable.

公开(公告)号：US09926178B2

公开(公告)日：2018-03-27

申请号：US14463697

申请日：2014-08-20

申请人： Crown Equipment Corporation

发明人： Martin Okroy ,  Jason Kremer ,  Lee Wente ,  Kevin A. Gilliland

IPC分类号： F16J15/16 ,  B66F9/22 ,  F15B15/14 ,  F15B15/22

CPC分类号： B66F9/22 ,  F15B15/1461 ,  F15B15/227 ,  F16J15/16

摘要： An actuator includes a ram structure slidably mounted within a cylinder structure bore and defines with the cylinder structure a gap therebetween. A fluid passageway structure in the ram structure defines a path for fluid to flow through the ram structure and includes an outlet in a sidewall of the ram structure. A cushioning seal located between the ram structure and the cylinder structure can engage the ram structure and a cylinder cap during ram structure extension such that the seal substantially closes off a first portion of the gap extending from the seal toward an open end of the cylinder structure. The cushioning seal can move during ram structure retraction in a direction of ram structure retraction such that fluid flowing out of the ram structure sidewall outlet, when the outlet is in the gap first portion, flows between the seal and the cylinder cap.

公开(公告)号：US20170108016A1

公开(公告)日：2017-04-20

申请号：US15300581

申请日：2015-03-27

申请人： Caterpillar Global Mining Europe GmbH

发明人： Christian KNOBLICH ,  Lothar MARKOWSKI ,  Sabine FIGGE ,  Jaroslaw WERNER

IPC分类号： F15B15/14 ,  E21D15/51 ,  F15B15/16

CPC分类号： F15B15/1438 ,  E21D15/15 ,  E21D15/44 ,  E21D15/51 ,  E21D15/56 ,  F15B15/1461 ,  F15B15/16

摘要： A hydraulic cylinder is disclosed. The hydraulic cylinder may have an outer cylindrical tube including an open end, a first female threaded portion, and a second female threaded portion. The hydraulic cylinder may also have a movable element received in the outer cylindrical tube through the open end. Further, the hydraulic cylinder may have a sleeve holder engaged with the first female threaded portion to seal an annular space between the outer cylindrical tube and the movable element. The sleeve holder may have a first male threaded portion mating with the first female threaded portion. In addition, the hydraulic cylinder may have a locking ring engaged with the second female threaded portion to secure the sleeve holder to the outer cylindrical tube. The locking ring may have a second male threaded portion mating with the second female threaded portion.

公开(公告)号：US09234586B2

公开(公告)日：2016-01-12

申请号：US14519426

申请日：2014-10-21

申请人： CKD CORPORATION

发明人： Masayuki Kouketsu ,  Hiroshi Itafuji

IPC分类号： F16K31/00 ,  F16K31/02 ,  F16J1/01 ,  F16K51/02 ,  G05D16/10 ,  F16K31/122 ,  F16K41/04 ,  F15B15/14 ,  G05D16/20

CPC分类号： F16J1/01 ,  F15B15/1461 ,  F16K31/1221 ,  F16K41/04 ,  F16K51/02 ,  G05D16/10 ,  G05D16/2013

摘要： A linear actuator is used with a vacuum chamber in which plasma is generated. The linear actuator comprises a moving member extending between the exterior and the interior of the vacuum chamber through an opening provided in the vacuum chamber so as to be rectilinearly reciprocated, a drive section configured to reciprocate the moving member, a cover that covers the moving member, and a slide seal section that provides a seal between the interior and the exterior of the vacuum chamber while allowing the cover to slide thereon. The cover covers a range of the moving member which is moved into both of the interior and the exterior of the vacuum chamber while the moving member is reciprocated by the drive section, and an outer surface of the cover is smaller in the amount of gas adsorption per unit area than an outer surface of the moving member.

摘要翻译： 线性致动器与其中产生等离子体的真空室一起使用。 线性致动器包括通过设置在真空室中的开口在真空室的外部和内部之间延伸以便直线往复运动的移动构件，构造成使移动构件往复移动的驱动部分，覆盖移动构件的盖 以及滑动密封部分，其在允许盖在其上滑动的同时在真空室的内部和外部之间提供密封。 盖子覆盖移动部件的范围，移动部件移动到真空室的内部和外部，同时移动部件通过驱动部分往复运动，并且盖子的外表面的气体吸附量较小 每单位面积比移动构件的外表面。

公开(公告)号：US20160001736A1

公开(公告)日：2016-01-07

申请号：US14791988

申请日：2015-07-06

申请人： TK Holdings Inc.

发明人： Joshua D. Van Hooser ,  Larry M. Wilmot ,  Ingo Kalliske ,  Kazuhiro Abe ,  Rasch Georg

IPC分类号： B60R21/38

CPC分类号： B60R21/38 ,  F15B15/1461 ,  F15B15/19

摘要： A pressurized fluid-powered actuator includes a housing and a striker movably coupled to the housing. Resilient sealing means are positioned between the striker and the housing. The sealing means are compressible so as to seal an end of the housing responsive to a force exerted on the sealing means by the striker in a first direction toward the housing. Releasable retaining means are operatively coupled to the striker and are structured to prevent motion of the striker in a second direction opposite the first direction prior to activation of the actuator, and responsive to a reaction force in the second direction exerted on the striker by the sealing means when the sealing means is compressed.

摘要翻译： 加压流体动力致动器包括壳体和可移动地联接到壳体的撞针。 弹性密封装置位于撞针和壳体之间。 密封装置是可压缩的，以便响应于冲击器沿朝向壳体的第一方向施加在密封装置上的力来密封壳体的端部。 可释放的保持装置可操作地联接到撞针并被构造成防止撞击器在致动器致动之前在与第一方向相反的第二方向上的运动，并且响应于通过密封件施加在撞针上的第二方向上的反作用力 意味着当密封装置被压缩时。

公开(公告)号：US20150292530A1

公开(公告)日：2015-10-15

申请号：US14443070

申请日：2012-11-15

申请人： Roger SJÖBECK ,  Magnus IVARSSON

发明人： Roger Sjobeck ,  Magnus Ivarsson

IPC分类号： F15B15/14 ,  B02C1/02

CPC分类号： F15B15/1461 ,  B02C1/025

摘要： A mechanical actuator configured to prevent the ingress of contaminant particulates from propagating under the cylinder head to destroy the fluid tight seal at the actuator chamber. An annular collar is tethered to an outer end region of the cylinder barrel and includes at least one scraper and seal to provide a preliminary cleaning of the piston rod.

摘要翻译： 一种机械致动器，其构造成防止污染物微粒进入到气缸盖下方，以破坏致动器腔室处的流体密封。 环形套环系在气缸筒的外端区域上，并且包括至少一个刮刀和密封件，以提供对活塞杆的初步清洁。

公开(公告)号：US20150075366A1

公开(公告)日：2015-03-19

申请号：US14485399

申请日：2014-09-12

申请人： Marcella Gai ,  Enrico Pagani ,  Alberto Fuccaro

发明人： Marcella Gai ,  Enrico Pagani ,  Alberto Fuccaro

IPC分类号： F16J1/12 ,  F15B15/14

CPC分类号： F16J1/12 ,  B63H20/12 ,  F15B15/1428 ,  F15B15/1433 ,  F15B15/1442 ,  F15B15/1461 ,  F15B2211/7054

摘要： A double-effect hydraulic actuating cylinder, particularly for hydraulic steering devices and for marine outboard motors, includes a cylinder slidably fitted on a coaxial rod, or vice versa, which sealingly projects out a head of the cylinder and carries a separating piston dividing the cylinder into two variable volume chambers, each connected to one of two inlets/outlets of the pump and a sealing head for the mutual sliding of cylinder and rod. The rod is non-slidably connected to a bracket fastening the cylinder to the motor, and an idler arm is secured to the motor and integral with the cylinder. At least one of the sealing heads include a sealing element engaging the inner side walls of one of the two variable-volume chambers, and a separate, coaxial plug element placed at the end parts of the cylinder and preventing the sealing element from sliding.

摘要翻译： 双重液压致动缸，特别是用于液压转向装置和用于船用舷外马达的双重液压致动缸包括可滑动地安装在同轴杆上的缸体，或反之亦然，该缸体密封地突出出缸体的头部，并承载分隔活塞 分别连接到泵的两个入口/出口中的一个，以及用于气缸和杆的相互滑动的密封头。 杆不可滑动地连接到将气缸固定到电动机的支架上，并且惰轮臂固定到电动机并与气缸成一体。 密封头中的至少一个包括与两个可变容积室中的一个的内侧壁接合的密封元件，以及放置在气缸的端部处并防止密封元件滑动的单独的同轴插塞元件。

公开(公告)号：US20130323103A1

公开(公告)日：2013-12-05

申请号：US13985957

申请日：2012-03-09

申请人： Joshua A. Shreve ,  Neal Almeida

发明人： Joshua A. Shreve ,  Neal Almeida

IPC分类号： F16J15/32 ,  F04B53/00

CPC分类号： F15B15/1461 ,  F04B1/0448 ,  F04B53/00 ,  F04B53/143 ,  F16J15/3208 ,  G01N30/32 ,  G01N2030/326

摘要： Low-pressure and high-pressure reciprocating and rotary applications use seal assemblies to prevent leakage. One embodiment of a seal assembly includes a major annular body having opposing spaced-apart annular lips extending from a heel portion with a bore extending through the heel portion. A first spring is disposed between the lips, biasing the lips apart. A minor annular body extends from one of the lips of the major annular body. The minor annular body has opposing spaced-apart walls that extend from a base region and form a pocket. A second spring is disposed in the pocket between the spaced-apart walls, biasing the walls apart. During actuator operation, pressurized fluid urges one wall of the minor annular body against a pump head surface to produce a face seal and one of the lips of the major annular body against a rod surface to produce a radial seal.

摘要翻译： 低压和高压往复和旋转应用使用密封组件来防止泄漏。 密封组件的一个实施例包括主要环形体，其具有相对间隔开的环形唇缘，其从具有延伸穿过跟部部分的孔的跟部部分延伸。 第一弹簧设置在嘴唇之间，使嘴唇分开。 小环形体从主环形体的一个唇部延伸。 小环形体具有从基部区域延伸并形成袋的相对的间隔开的壁。 第二弹簧设置在间隔开的壁之间的袋中，使壁分开。 在致动器操作期间，加压流体促使次环形体的一个壁抵靠泵头表面，以产生面密封件和主环形体的唇部中的一个抵靠杆表面以产生径向密封。