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公开(公告)号：EP3249193A4
公开(公告)日：2018-08-01
申请号：EP15904031
申请日：2015-09-14
发明人： KOJIMA YUYA , NAMBU TAKASHI , SHIBATA NAOMICHI , FUTAE TAKAYA , ISAYAMA SHUICHI
摘要： A turbocharger according to an embodiment of the present invention includes a rotating shaft, a compressor, a turbine, a compressor-side floating bearing and a turbine-side floating bearing that rotatably support the rotating shaft, and a bearing housing that houses the compressor-side floating bearing and the turbine-side floating bearing, the bearing housing being internally provided with a turbine-side oil feeding passage through which oil to be fed to the turbine-side floating bearing flows and a compressor-side oil feeding passage through which oil to be fed to the compressor-side floating bearing flows. A ratio of an oil feeding pressure for oil at an outlet of the compressor-side oil feeding passage to an oil feeding pressure for oil at an outlet of the turbine-side oil feeding passage is configured to be higher than 1.0 and lower than 1.5.
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公开(公告)号：EP3163103A4
公开(公告)日：2017-09-13
申请号：EP14900849
申请日：2014-08-28
发明人： KOJIMA YUYA , NISHIOKA TADASUKE , FUTAE TAKAYA , EBISU MOTOKI , NAMBU TAKASHI
CPC分类号： F16C17/10 , F01D25/16 , F01D25/166 , F01D25/186 , F02B37/00 , F04D29/056 , F05D2220/40 , F16C17/047 , F16C17/18 , F16C33/10 , F16C33/1075 , F16C2360/24
摘要： A rotary machine (1) is provided with: a flange section (16) protruding in the radial direction of a rotating shaft (5) which rotates about an axis (O) and rotating together with the rotating shaft (5); a stationary bush (13) disposed at a distance in the direction of the axis (O) from the flange section (16), surrounding the outer peripheral surface of the rotating shaft (5), and provided in a housing (4) supporting the rotating shaft (5) so as to be immovable in the direction of the axis (O) relative to the rotating shaft (5); and a rotation bush (10) which is disposed between the flange section (16) and the stationary bush (13) so as to be sandwiched therebetween in the direction of the axis (O), covers the outer peripheral surface of the rotating shaft (5), and is rotatable relative to the rotating shaft (5) and the housing (4) while floating in fluid (OI). The rotation bush (10) has, on the surface thereof which faces the direction of the axis (O), a land surface (25) and a tapered surface (26) which is continuous with the land surface (25).
摘要翻译： 本发明提供一种旋转机械（1），其具有：以旋转轴（5）为中心旋转并与旋转轴（5）一起旋转的旋转轴（5）的径向突出的凸缘部（16）; 固定衬套（13），其围绕旋转轴（5）的外周表面沿轴线（O）的方向与法兰部分（16）隔开一段距离设置，并且设置在支撑 （5）相对于所述旋转轴（5）沿所述轴线（O）的方向不可移动; 和配置在所述法兰部（16）与所述固定衬套（13）之间并沿所述轴线（O）的方向夹持的旋转衬套（10），所述旋转衬套（10）覆盖所述旋转轴的外周面 5）中，并且能够在漂浮在流体（OI）中的同时相对于旋转轴（5）和壳体（4）旋转。 旋转衬套10在其面向轴线O的方向的表面上具有平台表面25和与平台表面25连续的锥形表面26。
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公开(公告)号：EP3163102A4
公开(公告)日：2017-08-02
申请号：EP14904352
申请日：2014-10-21
IPC分类号： F16C17/04
CPC分类号： F16C17/04 , F01D25/168 , F05D2220/40 , F16C17/047 , F16C33/02 , F16C33/1075 , F16C2360/24 , H02K5/167
摘要： To reduce bearing loss due to an oil-shortage region on a pad facing a thrust collar, a thrust bearing according to at least one embodiment of the present invention includes a thrust collar, and at least one bearing pad disposed along a circumferential direction on a bearing surface, the at least one bearing pad having a tapered portion and a land portion. Each of the at least one bearing pad is formed so that a periphery portion on an outer side with respect to a radial direction gets closer to an inner side with respect to the radial direction toward an upstream side with respect to the rotational direction.
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公开(公告)号：EP3184834A4
公开(公告)日：2017-11-01
申请号：EP14908440
申请日：2014-12-18
发明人： NISHIOKA TADASUKE , DANMOTO YOSUKE , TOMITA ISAO , NAMBU TAKASHI , AKIYAMA YOJI , KOJIMA YUYA , ISHIZAKI TATSUYA , YANO SEIGI , FUTAE TAKAYA , EBISU MOTOKI
IPC分类号： F16C33/10 , F01D25/18 , F04D29/056 , F16C17/04
CPC分类号： F16H57/0409 , F01D25/18 , F02B39/14 , F04D29/056 , F05D2220/40 , F16C17/04 , F16C33/1025 , F16C2360/24 , F16H57/042
摘要： An oil-drain device for a thrust bearing includes: a rotor shaft 2; a collar member 3 mounted to an outer periphery of the rotor shaft; a thrust bearing 4 supporting the rotor shaft in an axial direction; and an oil-drain space forming member 5 defining an oil-drain space 6 through which lubricant oil leaking from a sliding portion of the thrust bearing flows, between the thrust bearing and the oil-drain space forming member. The oil-drain space 6 includes: an oil-drain channel 6A defined between a first end surface of the thrust bearing and a first end surface of the oil-drain space forming member, surrounding the flange portion 32 of the collar member 3; and an oil-drain port 6B formed below the oil-drain channel 6A, for discharging the lubricant oil flowing through the oil-drain channel outside the oil-drain space. The oil-drain space is configured to guide the lubricant oil flowing through the oil-drain channel to outside the oil-drain space 6 via the oil-drain port 6B, along a flow direction f of the lubricant oil flowing through the oil-drain channel 6A from an upstream side toward a downstream side in a rotational direction R of the rotor shaft 2.
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公开(公告)号：EP3163102A1
公开(公告)日：2017-05-03
申请号：EP14904352
申请日：2014-10-21
IPC分类号： F16C17/04
CPC分类号： F16C17/04 , F01D25/168 , F05D2220/40 , F16C17/047 , F16C33/02 , F16C33/1075 , F16C2360/24 , H02K5/167
摘要： To reduce bearing loss due to an oil-shortage region on a pad facing a thrust collar, a thrust bearing according to at least one embodiment of the present invention includes a thrust collar, and at least one bearing pad disposed along a circumferential direction on a bearing surface, the at least one bearing pad having a tapered portion and a land portion. Each of the at least one bearing pad is formed so that a periphery portion on an outer side with respect to a radial direction gets closer to an inner side with respect to the radial direction toward an upstream side with respect to the rotational direction.
摘要翻译： 为了减小由于面向推力环的衬垫上的缺油区域引起的轴承损失，根据本发明的至少一个实施例的推力轴承包括止推环和至少一个轴承衬垫，所述轴承衬垫沿圆周方向布置在 所述至少一个轴承衬垫具有锥形部分和平台部分。 至少一个轴承垫中的每一个形成为使得相对于径向方向位于外侧的周边部分相对于径向方向朝向相对于旋转方向的上游侧更靠近内侧。
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6.发明公开SEAL STRUCTURE AND SUPERCHARGER PROVIDED WITH SAID SEAL STRUCTURE 审中-公开DICHTUNGSSTRUKTUR UND MIT BESAGTER DICHTUNGSSTRUKTUR AUSGESTATTETER SUPERLADER
公开(公告)号：EP3112632A4
公开(公告)日：2017-04-12
申请号：EP14884001
申请日：2014-02-25
CPC分类号： F04D29/122 , F01D11/003 , F01D25/186 , F02B33/40 , F02B39/14 , F04D29/053 , F04D29/056 , F04D29/284 , F05D2220/40 , F05D2240/60 , F16J15/164 , F16J15/24 , F16J15/3272 , F16J15/441
摘要： An object is to provide a seal structure capable of reducing abrasion of a seal ring without increasing the number of components and of minimizing generation of abrasion powder. A seal structure to seal clearance between an outer peripheral surface 8a of a rotary shaft 8 and an inner peripheral surface 6a of a bearing housing 6 includes: a first seal groove 22A formed on the outer peripheral surface 8a of the rotary shaft 8; a second seal groove 22B disposed between the first seal groove and the impeller; a first seal ring 26 to be mounted to the first seal groove; and a second seal ring 28 to be mounted to the second seal groove. The first seal ring 26 includes a first-seal body portion 26A mounted to the first seal groove, and a first-seal protruding portion 26B protruding from the first-seal body portion toward the second seal ring 28, and being configured to be in contact with the second seal ring contacting a bearing-side wall surface 22Ba of the second seal groove, in a state in which the first-seal body portion is in contact with a bearing-side wall surface 22Aa of the first seal groove.
摘要翻译： 一个目的是提供一种密封结构，其能够减少密封环的磨损而不增加部件的数量并且使磨损粉末的产生最小化。 用于密封旋转轴8的外周面8a和轴承壳体6的内周面6a之间的间隙的密封结构包括：形成在旋转轴8的外周面8a上的第一密封槽22A; 设置在第一密封槽与叶轮之间的第二密封槽22B; 安装到第一密封槽的第一密封环26; 以及将安装到第二密封槽的第二密封环28。 第一密封环26包括安装到第一密封槽的第一密封主体部26A和从第一密封主体部朝向第二密封环28突出并且构造成接触的第一密封突出部26B 在第一密封主体部与第一密封槽的轴承侧壁面22Aa接触的状态下，第二密封环与第二密封槽的轴承侧壁面22Ba接触。
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7.发明公开FLOATING BUSH BEARING DEVICE, AND TURBOCHARGER PROVIDED WITH SAID BEARING DEVICE 审中-公开TURBMADE BUCHSENLAGERVORRICHTUNG TURBOLADER MIT DIESER LAGERVORRICHTUNG
公开(公告)号：EP3112707A4
公开(公告)日：2017-02-15
申请号：EP14884074
申请日：2014-02-27
CPC分类号： F16C33/1045 , F01D25/166 , F02B33/40 , F02B37/00 , F02B39/14 , F05D2220/40 , F05D2240/30 , F05D2240/50 , F05D2260/98 , F16C17/02 , F16C17/18 , F16C33/106 , F16C33/1065 , F16C33/1075 , F16C2360/24
摘要： An object is to provide a floating bush bearing device including a circumferential groove over the entire circumference of an outer peripheral surface of a floating bush while ensuring that a pressing force is applied by lubricant oil to the floating bush to reduce oscillation, as well as a turbocharger provided with the bearing device. A floating bush bearing device includes: a rotary shaft disposed rotatably inside a bearing hole of a casing; a floating bush surrounding the rotary shaft; an oil-feed hole of lubricant oil having an opening on an inner peripheral surface of the bearing hole; a plurality of communication holes formed on the floating bush, each extending between an inner peripheral surface and an outer peripheral surface of the floating bush, and disposed at intervals in a circumferential direction of the floating bush; and a circumferential groove formed on the outer peripheral surface of the floating bush or the inner peripheral surface of the bearing hole and extending over an entire circumference of the outer peripheral surface of the floating bush or the inner peripheral surface of the bearing hole, the circumferential groove passing through openings of the plurality of communication holes or facing the openings of the plurality of communication holes. The circumferential groove has a cross-sectional area which varies in accordance with a circumferential position.
摘要翻译： 本发明的目的是提供一种浮动衬套轴承装置，其包括在浮动衬套的外周表面的整个圆周上的周向槽，同时确保通过润滑油将润滑油施加到浮动衬套上以减少振动，以及 配有轴承装置的涡轮增压器。 浮动衬套轴承装置包括：可旋转地设置在壳体的轴承孔内的旋转轴; 围绕旋转轴的浮动衬套; 润滑油的给油孔，在所述轴承孔的内周面上具有开口; 在所述浮动衬套上形成的多个连通孔，各自在所述浮动衬套的内周面和外周面之间延伸，并且在所述浮动衬套的圆周方向上间隔设置; 以及形成在所述浮动衬套的外周面或所述支承孔的内周面的周向槽，并且在所述浮动衬套的外周面或所述支承孔的内周面的整周上延伸，所述周向槽 沟槽穿过多个连通孔的开口或面对多个连通孔的开口。 周向槽的横截面积根据周向位置而变化。
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公开(公告)号：EP3249192A4
公开(公告)日：2018-08-01
申请号：EP15903587
申请日：2015-09-10
发明人： ISAYAMA SHUICHI , NAMBU TAKASHI , FUTAE TAKAYA , KOJIMA YUYA
CPC分类号： F01D25/18 , F01D25/16 , F01D25/162 , F02B37/00 , F02B39/00 , F02B39/14 , F04D29/051 , F04D29/053 , F04D29/056 , F04D29/063 , F05D2220/40 , F16C17/00
摘要： A bearing device 1 for a turbocharger according to one embodiment of the present invention includes: a rotational shaft 2; a journal bearing device 4 including a compressor-side journal bearing 41 and a turbine-side journal bearing 42; a bearing housing 6 including a compressor-side bearing supporting portion 61, a turbine-side bearing supporting portion 62, and a bearing housing main body 66; and a lubricant oil guide member 10 extending along a circumference direction of the rotational shaft 2, at an outer circumference side of at least one of the compressor-side bearing supporting portion 61 and the turbine-side bearing supporting portion 62. When a virtual line extending vertically downward from a rotational center CL of the rotational shaft 2 is defined as a reference line VL in a state where an oil discharge port 64 is orientated downward, the lubricant oil guide member 10 extends from the reference line VL along the circumference direction toward each of one side and another side of the reference line VL over a predetermined angle ¸ about the rotational center CL of the rotational shaft 2.
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公开(公告)号：EP3196437A4
公开(公告)日：2018-02-14
申请号：EP14906219
申请日：2014-11-17
发明人： FUTAE TAKAYA , DANMOTO YOSUKE , NISHIOKA TADASUKE , AKIYAMA YOJI
IPC分类号： F16C33/10 , F01D25/16 , F01D25/18 , F02B39/14 , F04D29/051 , F04D29/063 , F16C17/04
CPC分类号： F02B39/14 , F01D25/166 , F01D25/18 , F04D29/051 , F04D29/063 , F05D2220/40 , F05D2250/312 , F16C17/04 , F16C33/1025 , F16C33/106 , F16C2360/24
摘要： A turbomachine includes: a rotational shaft; a pair of thrust collars disposed around the rotational shaft; a thrust bearing disposed around the rotational shaft at an axial directional position between the pair of thrust collars; and an oil-drain channel disposed around the rotational shaft, for draining lubricant oil after lubricating a sliding portion between the thrust bearing and the thrust collars. The oil-drain channel includes: an oil-drain port portion for discharging the lubricant oil inside the oil-drain channel downward; and an oil-guide channel portion disposed above the oil-drain port portion and configured to guide the lubricant oil from the sliding portion in a circumferential direction of the rotational shaft to the oil-drain port portion. The oil-guide channel portion has an asymmetric shape with respect to a rotational direction of the rotational shaft, the oil-guide channel portion having a minimum flow-path cross sectional area at a first position on an upstream side in the rotational direction, and a maximum flow-path cross sectional area at a second position on a downstream side of the first position.
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公开(公告)号：EP3258123A4
公开(公告)日：2017-12-20
申请号：EP15881935
申请日：2015-02-10
CPC分类号： F16C17/028 , F16C17/18 , F16C33/1075 , F16C33/1085 , F16C2360/24
摘要： A floating-bush bearing device (1) for rotatably supporting a rotational shaft (2), includes: a floating bush (3) having a cylindrical shape and including a bearing hole (33) into which the rotational shaft (2) is to be inserted; and a bearing housing (4) which rotatably houses the floating bush (3). At least one of an inner peripheral surface (31) of the floating bush (3), an outer peripheral surface (32) of the floating bush (3), or an inner peripheral surface (41) of the bearing housing (4) includes, in a cross section in an axial direction thereof, a plurality of land portions (311, 321, 411) having a true arc shape which is a part of a true circular shape, and a plurality of recess portions (312, 322, 412) being disposed at a position recessed from the land portions, the recess portions being configured such that a distance between the recess portions and a virtual true circular line (31a, 32a, 41a) passing through the land portions increases in a direction opposite from a rotational direction of the rotational shaft (2) from end portions (311b, 321b, 411b) of the land portions opposite from the rotational direction of the rotational shaft.
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