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公开(公告)号：US20240133390A1
公开(公告)日：2024-04-25
申请号：US18396316
申请日：2023-12-26
Applicant: TRANE INTERNATIONAL INC.
Inventor： Jacob T. Helgerson , Jay H. Johnson
IPC: F04D25/06 , F04D17/12 , F04D29/051 , F04D29/057 , F04D29/063 , F04D29/28 , F04D29/42 , F04D29/58 , F16C32/06 , F25B31/00 , F25B49/02
CPC classification number: F04D25/0606 , F04D17/122 , F04D29/0513 , F04D29/057 , F04D29/063 , F04D29/286 , F04D29/4206 , F04D29/5806 , F16C32/0618 , F16C32/064 , F16C32/0662 , F16C32/0696 , F25B31/002 , F25B49/022 , F04D27/004 , F16C2360/44 , F25B2400/07 , F25B2600/025
Abstract: A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a compressor with a gas bearing supplied with compressed gas and a controller. The controller is configured to determine an inlet pressure and outlet pressure of the gas bearing, determine a maximum speed limit based on the inlet pressure and the outlet pressure, and prevent the compressor from operating at a speed that is greater than the maximum speed limit A method of controlling a compressor includes calculating a maximum speed limit based on an inlet pressure and an outlet pressure of the gas bearing. The method also includes in response to determining that a speed setting is greater than the maximum speed limit, adjusting operation of the compressor such that a speed of the compressor is at or below the maximum speed limit.
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公开(公告)号：US20180104784A1
公开(公告)日：2018-04-19
申请号：US15786683
申请日：2017-10-18
Applicant: FANUC CORPORATION
Inventor： Toyoaki SUZUKI , Hiroshi MINAMI , Masahiro MUROTA
CPC classification number: B23Q11/0825 , B23Q1/4857 , B23Q1/623 , B23Q11/08 , B23Q11/121 , B23Q2011/0808 , F16C29/025 , F16C29/08 , F16C32/064 , F16C2322/39
Abstract: A liquid drainage mechanism drains oil (liquid) from a Y-axis slider that moves along a predetermined path. The liquid drainage mechanism includes an outflow hole and a nozzle flow passage that are provided in a C-axis rotary mechanism and configured to flow the oil in a stator, a nozzle configured to move integrally with the Y-axis slider and discharge the oil, and a Y-axis guide member configured to guide the Y-axis slider. The nozzle is disposed at a position that is close to but not in contact with the Y-axis guide member, and the nozzle discharges the oil so that the oil reaches the Y-axis guide member.
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公开(公告)号：US20160290395A1
公开(公告)日：2016-10-06
申请号：US15184911
申请日：2016-06-16
Applicant: Seagate Technology LLC
Inventor： Alan Lyndon Grantz , Lynn Bich-Quy Le , Klaus Diete Kloeppel
CPC classification number: F16C32/064 , F16C33/745 , F16C41/008 , F16C2370/12
Abstract: An apparatus is provided including a shaft, wherein the shaft is stationary. A rotatable component is configured to rotate with respect to the shaft. A fluid is operable to flow between the shaft and the rotatable component. A limiter is at a first axial end of the shaft, and a cup is at a second axial end of the shaft. An axially extending grooved region is between the limiter and the rotatable component.
Abstract translation: 提供了包括轴的装置，其中轴是静止的。 可旋转部件构造成相对于轴旋转。 流体可操作以在轴和可旋转部件之间流动。 限制器位于轴的第一轴向端，并且杯位于轴的第二轴向端。 轴向延伸的开槽区域位于限制器和可旋转部件之间。
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公开(公告)号：US09371857B2
公开(公告)日：2016-06-21
申请号：US14939184
申请日：2015-11-12
Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
Inventor： Tadasuke Nishioka , Yuki Sumi
CPC classification number: F16C32/0659 , F16C17/03 , F16C32/064 , F16C32/0644 , F16C32/0651 , F16C32/0655 , F16C32/0666 , F16C33/1045
Abstract: An object is to provide a tilting-pad bearing device whereby it is possible to levitate a rotation shaft with a low supply-oil pressure. A tilting-pad bearing device includes a plurality of bearing pads disposed around a rotation shaft so as to support the rotation shaft rotatably, a support member interposed between the plurality of bearing pads and a bearing housing supporting the plurality of bearing pads, the support member supporting each of the plurality of bearing pads pivotably, and an oil-supply mechanism configured to supply a lubricant oil to at least one oil groove formed on a bearing surface of at least one of the plurality of bearing pads. The at least one oil groove is disposed inside and outside a contact area of the bearing surface which is in contact with an outer circumferential surface of the rotation shaft when the rotation shaft is stopped.
Abstract translation: 本发明的目的是提供一种倾斜垫片轴承装置，由此可以以低的供油压力悬浮旋转轴。 倾斜垫轴承装置包括：多个轴承瓦片，其围绕旋转轴设置，以便可旋转地支撑旋转轴;支撑构件，其插入在所述多个轴承瓦块之间;支撑壳体，其支撑所述多个轴承瓦块;所述支撑构件 可枢转地支撑多个轴承瓦块中的每一个;以及供油机构，其构造成将润滑油供给到形成在所述多个轴承瓦块中的至少一个轴承瓦块的轴承表面上的至少一个油槽。 当旋转轴停止时，至少一个油槽设置在与旋转轴的外周面接触的轴承面的接触区域的内侧和外侧。
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公开(公告)号：US20160069387A1
公开(公告)日：2016-03-10
申请号：US14939236
申请日：2015-11-12
Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
Inventor： Tadasuke NISHIOKA , Yuki SUMI
CPC classification number: F16C32/0659 , F16C17/03 , F16C32/064 , F16C32/0644 , F16C32/0651 , F16C32/0655 , F16C32/0666 , F16C33/1045
Abstract: An object is to provide a tilting-pad bearing device whereby it is possible to levitate a rotation shaft with a low supply-oil pressure. A tilting-pad bearing device includes a plurality of bearing pads disposed around a rotation shaft so as to support the rotation shaft rotatably, a support member interposed between the plurality of bearing pads and a bearing housing supporting the plurality of bearing pads, the support member supporting each of the plurality of bearing pads pivotably, and an oil-supply mechanism configured to supply a lubricant oil to at least one oil groove formed on a bearing surface of at least one of the plurality of bearing pads. The at least one oil groove is disposed inside and outside a contact area of the bearing surface which is in contact with an outer circumferential surface of the rotation shaft when the rotation shaft is stopped.
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Patent Agency Ranking
公开(公告)号：US20150276368A1
公开(公告)日：2015-10-01
申请号：US14668144
申请日：2015-03-25
Applicant: Marc Hadarik
Inventor： Marc Hadarik
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。
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公开(公告)号：US20150016760A1
公开(公告)日：2015-01-15
申请号：US14326180
申请日：2014-07-08
Applicant: Mitsubishi Hitachi Power Systems, Ltd.
Inventor： Takayasu TANAKA , Kenichi HATTORI , Yukihiro YAMAMOTO , Kenichi TOMITA , Kengo IWASHIGE , Kenichi TOHRISAWA , Yasunori SHIGENAGA , Tomoaki YAMASHITA , Makoto HEMMI , Tateki NAKAMURA
IPC: F16C32/06
CPC classification number: F16C32/064 , F16C17/022 , F16C33/046 , F16C33/1045 , F16C33/1065 , F16C33/107 , F16C33/121 , F16C33/14 , F16C33/24
Abstract: A hydro dynamic bearing device comprising an upper half of a main bearing and a lower half of the main bearing, wherein the upper half of the main bearing is lined with a low-strength metal such as a Babbitt metal, wherein a circumferential groove is formed in the lower half of the main bearing, and wherein the low-strength metal of the upper half of the main bearing, which is formed at a region opposed to a downstream side of the circumferential groove formed in the lower half of the main bearing, is partially removed to cause a high-strength bearing base metal to be partially exposed.
Abstract translation: 一种包括主轴承的上半部和主轴承的下半部分的主动轴承装置，其中主轴承的上半部衬有诸如巴氏合金的低强度金属，其中形成周向槽 在主轴承的下半部中，主轴承的上半部的低强度金属形成在与形成在主轴承的下半部的周向槽的下游侧相对的区域， 被部分地去除以使高强度轴承母材部分露出。
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公开(公告)号：US08690436B2
公开(公告)日：2014-04-08
申请号：US13620080
申请日：2012-09-14
Applicant: Jeffry Arnold LeBlanc , Troy Michael Herndon , Robert Alan Nottingham , Alan Lyndon Grantz
Inventor： Jeffry Arnold LeBlanc , Troy Michael Herndon , Robert Alan Nottingham , Alan Lyndon Grantz
CPC classification number: F16C32/0659 , F16C17/102 , F16C17/107 , F16C32/064 , F16C33/103 , F16C33/1085 , F16C33/745 , F16C41/008 , F16C2370/12 , G11B19/2009
Abstract: A rotating hub and fixed spindle assembly with first and second fluid dynamic journal bearings and first and second fluid dynamic thrust bearings for a disc drive memory system has a pump seal and a radial ring seal at a first axial terminus for lubricant containment, and a capillary seal and a labyrinth seal at a second axial terminus for lubricant containment and storage. Lubricant fluid pressure differences between first and second seals are minimized through one or more lubricant fluid communicating channels in the hub assembly, in order to minimize lubricant fluid loss through a seal. Lubricant fluid can also be purged of any air bubbles by lubricant fluid circulation through the channel.
Abstract translation: 具有第一和第二流体动态轴颈轴承的旋转轮毂和固定主轴组件以及用于盘驱动器存储器系统的第一和第二流体动力推力轴承在用于润滑剂容纳的第一轴向端部处具有泵密封件和径向环形密封件，并且毛细管 密封件和第二轴向末端的迷宫式密封件用于润滑剂容纳和储存。 通过轮毂组件中的一个或多个润滑剂流体连通通道使第一和第二密封件之间的润滑剂流体压力差最小化，以便通过密封件减少润滑剂流体损失。 润滑剂流体也可以通过通过通道的润滑剂流体循环来清除任何气泡。
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公开(公告)号：US20140056548A1
公开(公告)日：2014-02-27
申请号：US13895512
申请日：2013-05-16
Inventor： Mitsuo Kodama , Ryusuke Sugiki
IPC: F16C32/06
CPC classification number: F16C32/064 , F16C17/107 , F16C33/103 , F16C33/745 , F16C2240/94 , F16C2370/12 , G11B19/2009 , H02K7/086
Abstract: A rotary device includes a fixed body including a shaft; a rotary body including a sleeve being configured to surround the shaft through lubricant; and first and second taper seals provided in a space between the fixed body and the rotary body in which gas-liquid interfaces of the lubricant exist, respectively, when the rotary device is operated, the first and taper seals being configured such that a lower limit of a filling ratio of the second taper seal corresponds to a predetermined range of the filling ratio of the first taper seal including its lower limit of the filling ratio, and an upper limit of the filling ratio of the second taper seal corresponds to a predetermined filling ratio of the first taper seal that is larger than an upper limit of the predetermined range and lower than an upper limit of the first taper seal.
Abstract translation: 旋转装置包括：固定体，其包括轴; 包括套筒的旋转体构造成通过润滑剂围绕轴; 以及设置在所述固定体和所述旋转体之间的空间中的第一和第二锥形密封件，其中当所述旋转装置被操作时，分别存在所述润滑剂的气液界面，所述第一和第二锥形密封件被配置为使得下限 第二锥形密封件的填充率对应于第一锥形密封件的填充率的预定范围，包括其填充比的下限，并且第二锥形密封件的填充率的上限对应于预定填充物 所述第一锥形密封件的比例大于所述预定范围的上限并且低于所述第一锥形密封件的上限。
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公开(公告)号：US20140023300A1
公开(公告)日：2014-01-23
申请号：US14033215
申请日：2013-09-20
Applicant: Seagate Technology LLC
Inventor： Alan Lyndon Grantz , Lynn Bich-Quy Le , Klaus Diete Kloeppel
IPC: F16C32/06
CPC classification number: F16C32/064 , F16C33/745 , F16C41/008 , F16C2370/12
Abstract: An apparatus and method are provided for a robust and shock resistant fluid dynamic bearing. A fluid sealing system with fluid pumping and capillary features provides increased reliability and performance for small form factor disc drive memory systems. Concerns of motor jog are addressed, jog being the rapid and repeated opening and closing of spaces between relatively rotatable components that can dispel oil from, or draw air into, these spaces. The fluid pumping capillary sealing system includes a fluid pumping groove with a rib portion and a slot portion for pumping fluid. The fluid pumping capillary sealing system also includes a capillary seal. In an aspect, a sweeping rib sweeps fluid toward the bearing. A truncated rib is situated adjacent to the sweeping rib, the truncated rib extending a shorter radial distance as compared to the sweeping rib and forming a plenum region.
Abstract translation: 提供了一种用于坚固耐冲击的流体动力轴承的装置和方法。 具有流体泵送和毛细管特性的流体密封系统为小尺寸盘驱动器存储器系统提供了更高的可靠性和性能。 解决了电机点动的问题，慢跑是能够将油从其中排出或将空气吸入这些空间的相对可旋转部件之间的空间的快速且重复的打开和关闭。 流体泵送毛细管密封系统包括具有肋部分的流体泵送槽和用于泵送流体的槽部分。 流体泵送毛细管密封系统还包括毛细管密封。 在一方面，清扫肋将流体朝向轴承扫过。 截头肋位于扫掠肋附近，与扫掠肋相比，截形肋延伸较短的径向距离并形成增压区。
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