公开(公告)号：US20180313400A1

公开(公告)日：2018-11-01

申请号：US15770587

申请日：2016-10-26

Applicant: NTN CORPORATION

Inventor： Masato YOSHINO ,  Hiroki FUJIWARA

IPC: F16C17/02 ,  F16C33/10

CPC classification number: F16C17/024 ,  F16C17/042 ,  F16C27/02 ,  F16C32/0603 ,  F16C33/101 ,  F16C43/02 ,  F16C2300/22 ,  F16C2300/54 ,  F16C2360/23 ,  F16C2360/24

Abstract: A foil bearing (40) includes foils (42) at a plurality of portions in a rotation direction of a shaft member (11). A top foil portion (Tf) including a bearing surface (S2) is formed in a region including a front end (421) of each of the foils (42), and a back foil portion (Bf) is formed in a region including a rear end (422) of each of the foils (42). A gap (C1) is secured between, of two of the foils adjacent to the foil (42) in a rotation direction (R) and a direction opposite to the rotation direction, the rear end (422) of the foil on the rotation direction side and the front end (421) of the foil on the side opposite to the rotation direction side. A width of the gap (C1) is set to be non-uniform in a direction (N) orthogonal to the rotation direction.

公开(公告)号：US09709092B2

公开(公告)日：2017-07-18

申请号：US15123524

申请日：2015-05-11

Applicant: NIDEC COPAL ELECTRONICS CORPORATION

Inventor： Takahiro Kikuchi ,  Takeshi Hijiya ,  Toshiya Uchida

IPC: F16C17/02 ,  F16C32/06 ,  F16C35/02 ,  G02B26/12 ,  H02K5/16 ,  H02K7/08

CPC classification number: F16C32/0685 ,  F16C17/02 ,  F16C17/026 ,  F16C32/0417 ,  F16C32/0603 ,  F16C32/0614 ,  F16C35/02 ,  F16C2370/20 ,  F16C2380/26 ,  G02B26/12 ,  G02B26/121 ,  H02K5/16 ,  H02K5/165 ,  H02K7/08 ,  H02K7/086

Abstract: Provided are a fluid dynamic bearing, a motor, and an optical deflector, for which a fixed shaft can be attached with little axial eccentricity. The bearing (10) is equipped with a fixed shaft (11), a sleeve (20) provided so as to be capable of rotating around the fixed shaft (11), dynamic pressure generating sections (22, 23) provided in the sleeve (20), and a lower case (30) for securing the lower end (11a) of the fixed shaft (11). In addition, the bearing is equipped with a retaining case (40), which has a chuck (52) that retains the upper end (11b) of the fixed shaft (11) secured by the lower case (30), and which can be secured to the lower case (30) in a state that does not generate pressure causing the axial center of the fixed shaft (11) to move.

公开(公告)号：US09564786B2

公开(公告)日：2017-02-07

申请号：US13978312

申请日：2011-01-05

Applicant: Michael Staghøj ,  Gerner Larsen ,  Niels Christian Olsen ,  Frank Møller Hansen ,  Jörg Wadehn

Inventor： Michael Staghøj ,  Gerner Larsen ,  Niels Christian Olsen ,  Frank Møller Hansen ,  Jörg Wadehn

IPC: F03D9/00 ,  H02P9/04 ,  H02K7/18 ,  F16C32/06 ,  H02K21/02

CPC classification number: H02K7/183 ,  F03D9/25 ,  F03D15/20 ,  F03D80/70 ,  F05B2220/7066 ,  F05B2240/53 ,  F16C32/0603 ,  F16C32/0622 ,  F16C2360/31 ,  H02K21/02 ,  Y02E10/722 ,  Y02E10/725

Abstract: A generator for a wind turbine is disclosed. The generator comprises a rotor configured to rotate about a rotational axis, and at least one stator arranged next to the rotor. Each stator comprises at least one flux-generating module facing the rotor but spaced therefrom, thereby forming an air gap between the rotor and each flux-generating module. Each stator also comprises at least one bearing unit, each bearing unit comprising a body defining a cavity with an open end facing the rotor. The generator further comprises a source of pressurized fluid communicating with each bearing unit, and the body of each bearing unit directs the fluid towards the rotor to help maintain the air gap between the rotor and each flux-generating module. Thereby the air gap between the rotor and the flux-generating modules is controlled by means of the fluid bearing units. The invention further provides a wind turbine comprising such a generator.

Abstract translation: 公开了一种用于风力涡轮机的发电机。 该发电机包括被配置为围绕旋转轴线旋转的转子和邻近该转子布置的至少一个定子。 每个定子包括面向转子但与其隔开的至少一个通量产生模块，从而在转子和每个通量产生模块之间形成气隙。 每个定子还包括至少一个轴承单元，每个轴承单元包括限定具有面向转子的开口端的空腔的主体。 发电机还包括与每个轴承单元连通的加压流体源，并且每个轴承单元的主体将流体引向转子以帮助维持转子和每个通量产生模块之间的气隙。 因此，通过流体轴承单元来控制转子和通量产生模块之间的空气间隙。 本发明还提供一种包括这种发电机的风力涡轮机。

公开(公告)号：US09506498B2

公开(公告)日：2016-11-29

申请号：US14668144

申请日：2015-03-25

Applicant: Marc Hadarik

Inventor： Marc Hadarik

IPC: F16C17/00 ,  F16C32/06 ,  G01B13/06 ,  G01B13/12 ,  G01L19/00 ,  G01L19/16 ,  F16C17/24

CPC classification number: F16C32/067 ,  F16C17/24 ,  F16C32/0603 ,  F16C32/0614 ,  F16C32/0629 ,  F16C32/064 ,  F16C32/0644 ,  F16C32/0648 ,  F16C2370/00 ,  G01B13/06 ,  G01B13/12 ,  G01L19/0092 ,  G01L19/16

Abstract: A method for adjusting a fluid gap in fluid film bearings comprising the steps of applying a load to the bearing, measuring fluid pressure of the fluid film, determining the fluid gap using a known relationship between the bearing load applied versus gap and corresponding fluid pressure and adjusting the gap to a desired width using the known relationship between the bearing load applied versus gap and corresponding fluid pressure. Predetermined measurements of film gage pressure, supply gage pressure and gap distance can be used to determine the ratio of absolute film pressure to absolute input pressure which, in turn, can be used to determine a formula for calculating unknown gap distances.

Abstract translation: 一种用于调节流体膜轴承中的流体间隙的方法，包括以下步骤：向轴承施加负载，测量流体膜的流体压力，使用施加的轴承负载与相应流体压力之间的已知关系确定流体间隙;以及 使用所施加的轴承负载与间隙和相应的流体压力之间的已知关系将间隙调节到期望的宽度。 可以使用胶片压力，供应量规压力和间隙距离的预定测量来确定绝对膜压力与绝对输入压力的比率，其又可用于确定用于计算未知间隙距离的公式。

公开(公告)号：US20160298679A1

公开(公告)日：2016-10-13

申请号：US15183221

申请日：2016-06-15

Applicant: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE

Inventor： Tsai-Fa Chen ,  Kuo-Yu Chien

IPC: F16C29/02 ,  F16C32/06

CPC classification number: F16C29/025 ,  F16C32/0603 ,  F16C32/0614 ,  F16C32/0618 ,  F16C32/0622 ,  F16C32/0666 ,  F16C2220/66 ,  F16C2223/30

Abstract: An aerostatic bearing includes a base having a foundation layer and a plurality of ventilation bodies protruding from the foundation layer, the ventilation bodies being made of a porous material; and a sealing layer covering the base and revealing at least one of the ventilation bodies.

公开(公告)号：US20160260424A1

公开(公告)日：2016-09-08

申请号：US14906793

申请日：2014-07-22

Applicant: ZS-HANDLING GMBH

Inventor： MICHAEL SCHILP ,  JOSEF ZIMMERMANN ,  ADOLF ZITZMANN

IPC: G10K15/00 ,  F16C32/06 ,  G01N21/84 ,  G01N27/72 ,  G01B7/06 ,  G01B11/06

CPC classification number: G10K15/00 ,  F16C32/0603 ,  G01B7/10 ,  G01B11/06 ,  G01N21/84 ,  G01N21/8901 ,  G01N27/72

Abstract: A device for inspecting a workpiece surface includes a sensor, a sonotrode having a sound-emitting surface and rigidly connected to the sensor to form a sensor unit, and a movable positioning device coupled with the sensor unit to position the sensor unit in a position opposite to the workpiece surface. The positioning device includes a force-applying member to urge the sensor unit in a direction of the workpiece or strip material surface by applying a predefined urging force or using gravity as the urging force. The sound-emitting surface of the sonotrode generates ultrasonic oscillations to produce an ultrasonic levitation force field in the presence of a gaseous medium between the workpiece surface and the sound-emitting surface to thereby generate a counterforce in opposition to the urging force so that the sensor unit is held hovering at a distance to the workpiece or strip surface.

Abstract translation: 用于检查工件表面的装置包括传感器，具有声发射表面并刚性地连接到传感器以形成传感器单元的超声波发生器，以及与传感器单元耦合的可移动定位装置，以将传感器单元定位在相对的位置 到工件表面。 定位装置包括施力部件，其通过施加预定的推动力或使用重力作为推动力来推动传感器单元在工件或带材表面的方向上。 超声波发生表面在工件表面和声发射表面之间的气体介质存在下产生超声振荡以产生超声波悬浮力场，从而产生与施力相反的反作用力，使得传感器 单元被放置在与工件或条带表面一段距离的位置。

公开(公告)号：US09291208B2

公开(公告)日：2016-03-22

申请号：US14275931

申请日：2014-05-13

Applicant: MITUTOYO CORPORATION

Inventor： Hisayoshi Sakai

IPC: F16D3/04 ,  F16D3/82 ,  F16D3/02 ,  F16D3/80 ,  F16C32/06

CPC classification number: F16D3/82 ,  F16C32/0603 ,  F16D3/02 ,  F16D3/80

Abstract: A rotation transmitter includes: a first member, an intermediate member and a second member that are arranged coaxially with a rotation axis. The first member is formed with a first bearing surface along the rotation axis and a first direction. The second member is formed with a second bearing surface along the rotation axis and a second direction. The intermediate member is formed with a first middle bearing surface facing the first bearing surface and formed with a second middle bearing surface facing the second bearing surface. A static-pressure air bearing is formed between the bearing surface and the middle bearing surface. The rotation transmitter further includes: a preload device that biases the bearing surface and the middle bearing surface in a direction approaching each other.

Abstract translation: 旋转变送器包括：与旋转轴同轴布置的第一构件，中间构件和第二构件。 第一构件沿着旋转轴线和第一方向形成有第一支承面。 第二构件沿旋转轴线和第二方向形成有第二支承面。 中间构件形成有面向第一支承面的第一中间承载面，并形成有面向第二支承面的第二中间承载面。 在轴承表面和中间承载面之间形成静压空气轴承。 旋转变送器还包括：预紧装置，其使轴承表面和中间承载面朝向彼此接近的方向偏压。

公开(公告)号：US09081308B2

公开(公告)日：2015-07-14

申请号：US13227180

申请日：2011-09-07

Applicant: Osamu Yasunobe

Inventor： Osamu Yasunobe

IPC: G03B27/60 ,  G03B27/58 ,  G03F7/20 ,  F16C29/02 ,  F16C32/06

CPC classification number: G03F7/70758 ,  F16C29/025 ,  F16C32/0603 ,  G03F7/70816 ,  G03F7/7095 ,  Y10T74/20354

Abstract: A guide includes a brittle material layer and a magnetically attracting magnetic body, e.g., a metal layer. A recess and a projection are formed on the metal layer. The brittle material layer is made of, e.g., a sprayed ceramic material and covers the recess formed on the magnetically attracting metal layer. A movable body moves as it levitates above the surface of the brittle material layer.

Abstract translation: 引导件包括脆性材料层和磁吸引磁体，例如金属层。 在金属层上形成凹部和突出部。 脆性材料层由例如喷涂陶瓷材料制成并且覆盖形成在吸磁金属层上的凹部。 当可移动体悬浮在脆性材料层的表面上方时移动。

公开(公告)号：US20150030269A1

公开(公告)日：2015-01-29

申请号：US14496322

申请日：2014-09-25

Applicant: IHI Corporation

Inventor： Naomichi OMORI

IPC: F16C17/02 ,  F16C32/06

CPC classification number: F16C17/024 ,  F16C32/0603 ,  F16C43/02 ,  F16C2226/50 ,  F16C2226/76

Abstract: A radial foil bearing (3) that supports a rotating shaft (1). This radial foil bearing (3) is provided with a top foil (10), a back foil (11), and a bearing housing (12) that houses them. A through-slot (13) is formed in the inner circumferential surface of the bearing housing (12), and engagement slots (20) are formed in the through-slot (13) by a fixing tool (16).

Abstract translation: 支撑旋转轴（1）的径向箔片轴承（3）。 该径向箔片轴承（3）设置有顶盖（10），背箔（11）和容纳它们的轴承壳体（12）。 在轴承箱（12）的内周面上形成有通槽（13），通过固定工具（16）在通槽（13）上形成有卡合槽（20）。

公开(公告)号：US08511461B2

公开(公告)日：2013-08-20

申请号：US12465859

申请日：2009-05-14

Applicant: Gautam Narendra Kudva ,  Weiwei Luo

Inventor： Gautam Narendra Kudva ,  Weiwei Luo

IPC: B65G45/22 ,  C03B35/24

CPC classification number: C03B35/24 ,  B65G49/061 ,  B65G49/062 ,  B65G49/063 ,  F16C32/0603 ,  H01L21/67712 ,  H01L21/67721

Abstract: Non-contact, gas-ejecting bearings (3) are provided for conveying flexible glass sheets (13), such as LCD substrates, at high conveyance speeds, e.g., speeds of 40 meters/minute and above, e.g., 60 meters/minute. Gas is provided to the bearing's orifices (22) from a plenum which operates at a pressure Pplenum and the bearings have a calculated static pressure Pmidpoint at the midpoints (27) between the bearing's centermost orifice (26) and each of its nearest neighbors (28) in a horizontal direction which satisfies the relationship Pmidpoint/Pplenum≧0.05. The bearings (3) can reduce the time-averaged, peak-to-peak variation in the spacing between a LCD substrate (13) traveling at, for example, 60 meters/minute and the face (20) of the bearing (3) to less than 500 microns, thus reducing the chances that the substrate (13) will hit and be damaged by the bearing (3).

Abstract translation: 提供非接触式气体喷射轴承（3），以高输送速度（例如40米/分钟以上，例如60米/分钟）的速度传送诸如LCD基板的柔性玻璃板（13）。 气体从在压力Pplenum上工作的增压室提供给轴承的孔口（22），并且轴承在轴承的最中心孔口（26）和其最近的邻近件（28）之间的中点（27）处具有计算的静态压力Pmidpoint ）满足关系Pmidpoint / Pplenum> = 0.05的水平方向。 轴承（3）可以减少以例如60米/分钟行进的LCD基板（13）与轴承（3）的表面（20）之间的间隔的时间平均，峰 - 峰变化， 到小于500微米，从而减少了衬底（13）将被轴承（3）撞击并损坏的机会。