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    TAPERED LAND THRUST BEARING DEVICE AND TURBOCHARGER PROVIDED WITH THE BEARING DEVICE
    2.
    发明申请
    TAPERED LAND THRUST BEARING DEVICE AND TURBOCHARGER PROVIDED WITH THE BEARING DEVICE 审中-公开
    带有轴承装置的带状陆面轴承装置和涡轮增压器

    公开(公告)号：US20160348721A1

    公开(公告)日：2016-12-01

    申请号：US15113894

    申请日：2014-02-27

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Takaya FUTAE ,  Hideaki NISHIDA

    IPC分类号： F16C33/10 ,  F04D17/10 ,  F01D25/16 ,  F16C17/04 ,  F16C33/12

    CPC分类号： F16C33/107 ,  F01D25/168 ,  F02B39/00 ,  F05D2220/40 ,  F05D2250/182 ,  F05D2250/183 ,  F05D2250/191 ,  F05D2250/292 ,  F05D2250/611 ,  F16C17/045 ,  F16C17/047 ,  F16C33/1075 ,  F16C33/128 ,  F16C2360/24

    摘要： An object is to provide a tapered land thrust bearing device with a land surface having a substantially reduced area without changing the contour shape of the land surface even if the area of the land surface is small, and high mechanical efficiency, as well as a turbocharger provided with the bearing device. A tapered land thrust bearing device includes: a flange portion fitted onto a rotary shaft and including a first thrust portion; and a thrust member including a second thrust portion which is disposed around a through hole and which faces the first thrust portion of the flange portion. The first thrust portion or the second thrust portion includes a plurality of land surfaces each of which is parallel to a plane orthogonal to an axis of the rotary shaft, the land surfaces being disposed at intervals in a circumferential direction of the through hole, a plurality of tapered surfaces each of which is disposed between the plurality of land surfaces, joined via a step to a boundary of the land surface on one side in the circumferential direction of the through hole, and joined continuously to a boundary of the land surface on the other side in the circumferential direction of the through hole, and at least one concave portion disposed on each of the plurality of land surfaces.

    摘要翻译： 本发明的目的是提供一种具有大大减小的面积而具有大幅减小的面积的锥形陆面推力轴承装置，而不改变陆面的轮廓形状，即使陆面的面积小，机械效率高，以及涡轮增压器 设有轴承装置。 锥形陆面推力轴承装置包括：安装在旋转轴上并包括第一推力部分的凸缘部分; 以及推力构件，其包括设置在通孔周围并且与凸缘部的第一推力部相对的第二推力部。 所述第一推力部或所述第二推力部具有与所述旋转轴的轴正交的平面平行的多个台面，所述台面沿所述贯通孔的圆周方向间隔配置， 所述锥形表面设置在所述多个台面表面之间，所述多个台面表面之间经由台阶在所述通孔的圆周方向上的一侧上的所述台面的边界接合，并且连续地连接到所述通孔的所述台面的边界 在通孔的圆周方向上的另一侧，以及设置在多个台面的每一个上的至少一个凹部。

    TURBOMACHINE
    5.
    发明申请
    TURBOMACHINE 审中-公开

    公开(公告)号：US20170234213A1

    公开(公告)日：2017-08-17

    申请号：US15518508

    申请日：2014-11-17

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Takaya FUTAE ,  Yosuke DANMOTO ,  Tadasuke NISHIOKA ,  Yoji AKIYAMA

    IPC分类号： F02B39/14 ,  F01D25/18 ,  F04D29/063 ,  F01D25/16 ,  F04D29/051

    CPC分类号： F02B39/14 ,  F01D25/166 ,  F01D25/18 ,  F02C6/12 ,  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.

    TURBOCHARGER
    6.
    发明申请
    TURBOCHARGER 审中-公开

    公开(公告)号：US20180003105A1

    公开(公告)日：2018-01-04

    申请号：US15546854

    申请日：2015-09-14

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Yuya KOJIMA ,  Takashi NAMBU ,  Naomichi SHIBATA ,  Takaya FUTAE ,  Shuichi ISAYAMA

    IPC分类号： F02B39/14 ,  F01D25/16 ,  F02B37/00 ,  F16C17/18

    CPC分类号： F02B39/14 ,  F01D25/16 ,  F01D25/18 ,  F02B37/00 ,  F02B39/00 ,  F05D2220/40 ,  F16C17/18

    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.

    FLOATING BUSH BEARING DEVICE AND TURBOCHARGER PROVIDED WITH THE BEARING DEVICE
    8.
    发明申请
    FLOATING BUSH BEARING DEVICE AND TURBOCHARGER PROVIDED WITH THE BEARING DEVICE 审中-公开
    浮动轴承装置和带有轴承装置的涡轮增压器

    公开(公告)号：US20170009810A1

    公开(公告)日：2017-01-12

    申请号：US15114156

    申请日：2014-02-27

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Takaya FUTAE ,  Tadasuke NISHIOKA ,  Takashi NAMBU ,  Noriyuki HAYASHI ,  Hiroshi SUZUKI

    IPC分类号： F16C33/10 ,  F16C17/02 ,  F01D25/16 ,  F02B33/40 ,  F02B39/14 ,  F16C17/18 ,  F02B37/00

    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 ,  F16C33/1085 ,  F16C2360/24 ,  Y02T10/144

    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; 形成在所述浮动衬套上的多个连通孔，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。

    SEAL STRUCTURE AND SUPERCHARGER PROVIDED WITH THE SEAL STRUCTURE
    9.
    发明申请
    SEAL STRUCTURE AND SUPERCHARGER PROVIDED WITH THE SEAL STRUCTURE 审中-公开
    密封结构和超级密封提供密封结构

    公开(公告)号：US20160356283A1

    公开(公告)日：2016-12-08

    申请号：US15110144

    申请日：2014-02-25

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Takaya FUTAE ,  Hiroshi SUZUKI ,  Noriyuki HAYASHI ,  Takuya MIYAZAWA

    IPC分类号： F04D29/12 ,  F04D29/056 ,  F04D29/28 ,  F04D29/053

    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： 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最小化磨损粉末的产生。 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; 设置在第一密封槽和叶轮之间的第二密封槽22B; 要安装到第一密封槽的第一密封环26; 以及安装到第二密封槽的第二密封环28。 第一密封环26包括安装在第一密封槽上的第一密封主体部26A和从第一密封主体部向第二密封环28突出的第一密封突出部26B， 在第一密封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。

    FLOATING BUSH BEARING DEVICE AND SUPERCHARGER INCLUDING THE SAME
    10.
    发明申请
    FLOATING BUSH BEARING DEVICE AND SUPERCHARGER INCLUDING THE SAME 有权
    浮动轴承装置和超级包括其中的装置

    公开(公告)号：US20150330442A1

    公开(公告)日：2015-11-19

    申请号：US14650811

    申请日：2012-12-19

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Takaya FUTAE ,  Hiroshi KANKI ,  Noriyuki HAYASHI ,  Hideaki NISHIDA ,  Shinji OGAWA ,  Chiaki YASUDA ,  Yutaka OZAWA

    IPC分类号： F16C17/18 ,  F04D29/28 ,  F04D29/053 ,  F04D17/10 ,  F16C33/10 ,  F04D29/056

    CPC分类号： F16C17/028 ,  F01D25/166 ,  F01D25/186 ,  F04D17/10 ,  F04D29/053 ,  F04D29/056 ,  F04D29/284 ,  F05D2260/98 ,  F16C17/18 ,  F16C33/1045 ,  F16C33/1075 ,  F16C33/1085 ,  F16C2360/24 ,  F16C2360/44

    摘要： An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device which rotatably supports a rotation shaft includes: a bearing housing, a floating bush rotatably disposed between the rotation shaft and an inner circumferential surface of the bearing housing, in the bearing housing, and a bush side oil supply hole which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole communicates with the gap portion.

    摘要翻译： 目的是提供具有优异的振荡稳定性和小的轴承损耗的浮动衬套轴承装置。 可旋转地支撑旋转轴的浮动衬套轴承装置包括：轴承壳体，可旋转地设置在旋转轴和轴承壳体的内周面之间的浮动衬套，位于轴承壳体中，以及衬套侧供油孔， 通过浮动衬套形成并且能够在旋转轴和浮动衬套的内周表面之间供给润滑油，浮动衬套的内周表面具有非圆形形状，使得在旋转轴之间形成间隙部分 轴和浮动衬套的内周面之间，间隙部分具有预定间隙或更大，而不管旋转轴和浮动衬套的内周表面的相对位置如何，衬套侧供油孔与间隙部分连通 。