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公开(公告)号：US20130251531A1
公开(公告)日：2013-09-26
申请号：US13990483
申请日：2011-10-25
IPC分类号： F04D29/30
CPC分类号： F04D29/20 , F04D17/10 , F04D17/12 , F04D29/2222 , F04D29/263 , F04D29/266 , F04D29/281 , F04D29/284 , F04D29/30 , F05D2260/37
摘要： Provided is a rotary machine including: a shaft that rotates; a disc that has a substantially cylindrical hub fitted into the shaft and is provided so as to widen outward in a radial direction from a front end to a rear end of the hub; and an impeller having a plurality of blades provided on a surface of the disc. The hub has a tight fit section having an internal radius that is smaller than a radius of the shaft, and a loose fit section having an internal radius that is greater than the internal radius of the tight fit section. The loose fit section is provided on the front end side of the hub with respect to the tight fit section.
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公开(公告)号：US09347460B2
公开(公告)日：2016-05-24
申请号：US13990483
申请日：2011-10-25
CPC分类号： F04D29/20 , F04D17/10 , F04D17/12 , F04D29/2222 , F04D29/263 , F04D29/266 , F04D29/281 , F04D29/284 , F04D29/30 , F05D2260/37
摘要： A rotary machine includes: a shaft that rotates; a disc that has a substantially cylindrical hub fitted into the shaft and is provided so as to widen outward in a radial direction from a front end to a rear end of the substantially cylindrical hub; and an impeller having a plurality of blades provided on a surface of the disc. The substantially cylindrical hub has a tight fit section having an internal radius that is smaller than a radius of the shaft, and a loose fit section having an internal radius that is greater than the internal radius of the tight fit section. The loose fit section is provided on a front end side of the substantially cylindrical hub with respect to the tight fit section.
摘要翻译： 旋转机器包括：旋转的轴; 具有安装在所述轴中的大致圆筒形的轮毂，并且设置成从所述大致圆筒形轮毂的前端到后端沿径向向外加宽; 以及具有设置在所述盘的表面上的多个叶片的叶轮。 基本上圆柱形的轮毂具有紧密配合部分，该紧密配合部分具有小于轴的半径的内半径，以及具有大于紧配合部分的内半径的内半径的松配合部分。 松紧配合部分相对于紧密配合部分设置在大致圆柱形轮毂的前端侧。
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公开(公告)号：US20130272895A1
公开(公告)日：2013-10-17
申请号：US13976108
申请日：2012-02-17
CPC分类号： F01D5/14 , B23P15/006 , F04D29/266 , F04D29/284 , F04D29/624 , F05B2230/23 , Y10T29/49316
摘要： An impeller is formed of two parts, i.e., an inner peripheral side part and an outer peripheral side part. The inner peripheral side part is molded in a cylindrical shape. The outer peripheral side part is formed by integrally molding an annular disc externally fitted to an outer peripheral surface of the inner peripheral side part, a plurality of blades provided at an interval in a circumferential direction on a surface that faces the other side in the axis line direction of the annular disc and forming al flow path extending in a radial direction, and a cover covering the plurality of blades from the other side in the axis line direction and having an insertion hole to which the inner peripheral side part is inserted in the axis line direction at an interval in a radial direction.
摘要翻译： 叶轮由两部分构成，即内周侧部分和外周侧部分。 内周侧部成型为圆筒状。 外周侧部通过一体地成形外周嵌合于内周侧部的外周面的环状盘而形成，多个叶片沿圆周方向间隔设置在与轴线相对的另一侧的面 环形盘的线方向和形成沿径向延伸的流路，以及从轴线方向上的另一侧覆盖多个叶片的盖，并且具有插入孔，内周侧部分插入到该插入孔中 轴线方向。
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公开(公告)号：US09611742B2
公开(公告)日：2017-04-04
申请号：US13976108
申请日：2012-02-17
CPC分类号： F01D5/14 , B23P15/006 , F04D29/266 , F04D29/284 , F04D29/624 , F05B2230/23 , Y10T29/49316
摘要： An impeller is formed of two parts, i.e., an inner peripheral side part and an outer peripheral side part. The inner peripheral side part is molded in a cylindrical shape. The outer peripheral side part is formed by integrally molding an annular disc externally fitted to an outer peripheral surface of the inner peripheral side part, a plurality of blades provided at an interval in a circumferential direction on a surface that faces the other side in the axis line direction of the annular disc and forming a flow path extending in a radial direction, and a cover covering the plurality of blades from the other side in the axis line direction and having an insertion hole to which the inner peripheral side part is inserted in the axis line direction at an interval in a radial direction.
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公开(公告)号：US08956118B2
公开(公告)日：2015-02-17
申请号：US13386993
申请日：2010-02-19
CPC分类号： F04D29/284 , F01D5/048 , F04D29/30 , F05D2220/40 , F05D2240/303
摘要： Provided is an impeller of a centrifugal compressor including: a hub; a plurality of blades protruding from a surface of the hub, wherein a passage is formed by the hub and a blade being adjacent with the hub, so that a fluid, flowing in along an axial direction at an inner circumferential side in a radial direction, is flowed out toward an outer circumferential side in a radial direction; each of the plurality of blades includes a main body part and a leading edge, the main body part including a pressure side and a suction side; an angle between a component central line of the main body part and the axial direction increases from an inner end toward an outer end; and a radius of curvature at a central position, intersecting with the component central line of the leading edge, decreases from the inner end toward the outer end.
摘要翻译： 提供一种离心式压缩机的叶轮，包括：轮毂; 从所述轮毂的表面突出的多个叶片，其中，所述轮毂和与所述轮毂相邻的叶片形成通道，使得沿着径向在内周侧沿轴向流动的流体， 沿径向向外周侧流出; 所述多个叶片中的每一个包括主体部分和前缘，所述主体部分包括压力侧和吸力侧; 主体部分的中心线与轴向之间的角度从内端向外端增加; 并且与前缘的部件中心线交叉的中心位置处的曲率半径从内端朝向外端减小。
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公开(公告)号：US08328510B2
公开(公告)日：2012-12-11
申请号：US12528509
申请日：2008-05-26
申请人： Akihiro Nakaniwa , Jo Masutani
发明人： Akihiro Nakaniwa , Jo Masutani
IPC分类号： F04D29/10
CPC分类号： F04D17/12 , F04D25/16 , F04D29/102 , F04D29/661
摘要： A sealing device includes a housing that rotatably accommodates a rotary shaft, a plurality of guide parts that extend along at least one of a radial direction and an axial direction of the rotary shaft and that impart flow velocity components in the rotation direction of the rotary shaft to fluid passing through therebetween, a partition part that connects ends of the plurality of guide parts and that serves as a partition between spaces between the plurality of guide parts and an outside space, a first seal part that is an annular protrusion extending in the radial direction, that forms a first gap with respect to the rotary shaft or the housing, and that blocks fluid flowing toward the plurality of guide parts, and a second seal part that is an annular protrusion, that forms a second gap with respect to the rotary shaft or the partition part, and that blocks fluid flowing through the outside space.
摘要翻译： 密封装置包括可旋转地容纳旋转轴的壳体，沿着旋转轴的径向方向和轴向方向中的至少一个延伸的多个引导部，并且使得旋转轴的旋转方向上的流速分量 通过它们之间的流体，分隔部分，其连接所述多个引导部分的端部，并且用作所述多个引导部分之间的空间与外部空间之间的间隔;第一密封部，其是径向延伸的环形突起 方向，其相对于旋转轴或壳体形成第一间隙，并阻止朝向多个引导部分流动的流体;以及作为环形突起的第二密封部分，其相对于旋转体形成第二间隙 轴或分隔部分，并且阻止流过外部空间的流体。
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公开(公告)号：US20120186605A1
公开(公告)日：2012-07-26
申请号：US13497634
申请日：2011-01-27
申请人： Akihiro Nakaniwa
发明人： Akihiro Nakaniwa
CPC分类号： B08B3/02 , F01D25/002 , F04D17/10 , F04D17/122 , F04D29/705
摘要： The centrifugal compressor is provided with a casing, a rotating shaft which is supported inside the casing, an impeller which is arranged on the rotating shaft and rotates to compress a fluid, and a washing liquid injection device which injects a washing liquid into a flow path formed by the impeller and the casing. The washing liquid injection device is provided with a plurality of nozzles which are arranged along a circumferential direction of the rotating shaft to inject the washing liquid into the flow path and a plurality of chambers which communicate with each corresponding nozzle among the plurality of nozzles and supply the washing liquid to the corresponding nozzle.
摘要翻译： 离心式压缩机设置有壳体，支撑在壳体内部的旋转轴，布置在旋转轴上并旋转以压缩流体的叶轮，以及将洗涤液喷射到流路中的洗涤液注入装置 由叶轮和壳体形成。 洗涤液注入装置具有沿着旋转轴的圆周方向排列的多个喷嘴，以将洗涤液喷射到流路中，并且与多个喷嘴中的每个相应的喷嘴连通并供给多个喷嘴 洗涤液体到相应的喷嘴。
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公开(公告)号：US09194400B2
公开(公告)日：2015-11-24
申请号：US13497634
申请日：2011-01-27
申请人： Akihiro Nakaniwa
发明人： Akihiro Nakaniwa
CPC分类号： B08B3/02 , F01D25/002 , F04D17/10 , F04D17/122 , F04D29/705
摘要： The centrifugal compressor is provided with a casing, a rotating shaft which is supported inside the casing, an impeller which is arranged on the rotating shaft and rotates to compress a fluid, and a washing liquid injection device which injects a washing liquid into a flow path formed by the impeller and the casing. The washing liquid injection device is provided with a plurality of nozzles which are arranged along a circumferential direction of the rotating shaft to inject the washing liquid into the flow path and a plurality of chambers which communicate with each corresponding nozzle among the plurality of nozzles and supply the washing liquid to the corresponding nozzle.
摘要翻译： 离心式压缩机设置有壳体，支撑在壳体内部的旋转轴，布置在旋转轴上并旋转以压缩流体的叶轮，以及将洗涤液喷射到流路中的洗涤液注入装置 由叶轮和壳体形成。 洗涤液注入装置具有沿着旋转轴的圆周方向排列的多个喷嘴，以将洗涤液喷射到流路中，并且与多个喷嘴中的每个相应的喷嘴连通并供给多个喷嘴 洗涤液体到相应的喷嘴。
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公开(公告)号：US20110200439A1
公开(公告)日：2011-08-18
申请号：US13124729
申请日：2010-01-15
IPC分类号： F01D5/22
CPC分类号： F04D29/284 , F04D29/023 , F04D29/624 , F05D2230/53
摘要： A hub is supported rotatably about an axis of rotation, and the diameter thereof increases from upstream to downstream sides along a fluid flow. A plurality of impeller blades extend radially outward from an outer circumferential surface of the hub. A shroud is formed in a cylindrical shape whose diameter increases from the upstream to downstream sides along the fluid flow and joins outer circumferential ends of the plurality of impeller blades. The impeller blades are composed of upstream blade segments and downstream blade segments bonded at a bonding surface extending in a direction substantially perpendicular to the axis of rotation. The upstream blade segments are integral with at least a portion of the shroud, and the downstream blade segments are integral with at least a portion of the hub. This improves the reliability and performance of an impeller and a compressor.
摘要翻译： 轮毂围绕旋转轴线可旋转地支撑，并且其直径沿着流体流从上游侧向下游侧增加。 多个叶轮叶片从毂的外周表面径向向外延伸。 护罩形成为圆柱形，其直径沿着流体流从上游侧向下游侧增加，并且连接多个叶轮叶片的外周端。 叶轮叶片由上游叶片段和下游叶片段组成，下游叶片段在与基本上垂直于旋转轴线的方向延伸的接合表面处结合。 上游叶片段与护罩的至少一部分是一体的，并且下游叶片段与轮毂的至少一部分是一体的。 这提高了叶轮和压缩机的可靠性和性能。
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公开(公告)号：US20100028148A1
公开(公告)日：2010-02-04
申请号：US12528509
申请日：2007-06-06
申请人： Akihiro Nakaniwa , Jo Masutani
发明人： Akihiro Nakaniwa , Jo Masutani
CPC分类号： F04D17/12 , F04D29/102 , F04D29/661
摘要： The invention provides a sealing device for a rotary fluid machine and a rotary fluid machine that reduce a decrease in efficiency and suppress swirling stall in a multistage rotary fluid machine. The sealing device includes a housing that rotatably accommodates a rotary shaft; a plurality of guide parts that extend along at least one of a radial direction and an axial direction of the rotary shaft and that impart flow velocity components in the rotation direction of the rotary shaft to fluid passing through therebetween; a partition part that connects ends of the plurality of guide parts and that serves as a partition between spaces between the plurality of guide parts and an outside space; a first seal part that is an annular protrusion extending in the radial direction, that forms a first gap with respect to the rotary shaft or the housing, and that blocks fluid flowing toward the plurality of guide parts; and a second seal part that is an annular protrusion, that forms a second gap with respect to the rotary shaft or the partition part, and that blocks fluid flowing through the outside space.
摘要翻译： 本发明提供了一种用于旋转流体机械和旋转流体机械的密封装置，其减少了多级旋转流体机械中的效率的降低并抑制了旋转失速。 密封装置包括可旋转地容纳旋转轴的壳体; 多个引导部，其沿着所述旋转轴的径向和轴向方向中的至少一个延伸，并且将所述旋转轴的旋转方向的流速分量赋予流过所述旋转轴的流体; 分隔部分，其连接所述多个引导部分的端部并且用作所述多个引导部分之间的空间与外部空间之间的分隔; 第一密封部，其是在径向方向上延伸的环状突起，其相对于所述旋转轴或所述壳体形成第一间隙，并且阻挡朝向所述多个引导部流动的流体; 以及第二密封部，其是相对于所述旋转轴或所述分隔部形成第二间隙的环状突起，并且阻止流过所述外部空间的流体。
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