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公开(公告)号：US09541094B2
公开(公告)日：2017-01-10
申请号：US13823607
申请日：2011-12-05
CPC分类号： F04D29/403 , F04D29/4206 , F04D29/441 , F05D2250/52
摘要： A scroll structure of a centrifugal compressor 1 having a spirally formed scroll passage 13. The scroll passage 13 includes: a flat connecting portion A at a flow passage joint 23 where a scroll start and a scroll end of the scroll passage 13 meet, this flat connecting portion having a flat cross-sectional shape with a same height as that of an outlet passage of a diffuser; and a transition part 21 where the flat cross-sectional shape of the flat connecting portion A gradually changes back to a circular cross-sectional shape along a circumferential direction.
摘要翻译： 具有螺旋形涡旋通道13的离心式压缩机1的涡旋结构。涡旋通道13包括：涡卷通道13的涡卷起动和涡旋端相交的流动通道接头23处的平坦连接部分A， 连接部分具有与扩散器的出口通道相同的高度的平坦的横截面形状; 以及平坦连接部A的扁平截面形状沿圆周方向逐渐变回到圆形截面形状的过渡部21。
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公开(公告)号：US20130266432A1
公开(公告)日：2013-10-10
申请号：US13823607
申请日：2011-12-05
IPC分类号： F04D29/40
CPC分类号： F04D29/403 , F04D29/4206 , F04D29/441 , F05D2250/52
摘要： A scroll structure of a centrifugal compressor 1 having a spirally formed scroll passage 13. The scroll passage 13 includes: a flat connecting portion A at a flow passage joint 23 where a scroll start and a scroll end of the scroll passage 13 meet, this flat connecting portion having a flat cross-sectional shape with a same height as that of an outlet passage of a diffuser; and a transition part 21 where the flat cross-sectional shape of the flat connecting portion A gradually changes back to a circular cross-sectional shape along a circumferential direction.
摘要翻译： 具有螺旋形涡旋通道13的离心式压缩机1的涡旋结构。涡旋通道13包括：涡卷通道13的涡卷起动和涡旋端相交的流动通道接头23处的平坦连接部分A， 连接部分具有与扩散器的出口通道相同的高度的平坦的横截面形状; 以及平坦连接部A的扁平截面形状沿圆周方向逐渐变回到圆形截面形状的过渡部21。
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公开(公告)号：US09562541B2
公开(公告)日：2017-02-07
申请号：US13981042
申请日：2012-01-27
CPC分类号： F04D29/44 , F04D29/4206 , F04D29/441 , F04D29/667 , F05D2250/52
摘要： An axial cross-sectional shape of a scroll flow path 13 is a roughly circular shape, a diffuser outlet connected to the roughly circular shape is shifted to a position which is closer to a circle center than to a position of a tangent line to the circular shape and which does not reach the circle center, the circular shape is formed from a scroll chamber 30 which juts out in the axial direction relative to the position of the diffuser outlet 11a and a shift chamber 32 that forms a remainder of the roughly circular shape in a direction opposite to the scroll chamber 30, and the shift chamber 32 is at least formed on the scroll flow path 13 of a winding end portion 19 in a circumferential direction of a spiral.
摘要翻译： 涡旋流路13的轴向截面形状为大致圆形，与大致圆形形状连接的扩散器出口偏移到比圆心更接近圆心的位置，而与圆形切线相对的位置 形状并且不到达圆心，圆形形状由相对于扩散器出口11a的位置沿轴向突出的涡旋室30和形成大致圆形形状的剩余部分的换档室32形成 在与涡旋室30相反的方向上，变速室32至少形成在螺旋的圆周方向上的卷绕端部19的涡旋流路13上。
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公开(公告)号：US20130343885A1
公开(公告)日：2013-12-26
申请号：US13981042
申请日：2012-01-27
IPC分类号： F04D29/44
CPC分类号： F04D29/44 , F04D29/4206 , F04D29/441 , F04D29/667 , F05D2250/52
摘要： An axial cross-sectional shape of a scroll flow path 13 is a roughly circular shape, a diffuser outlet connected to the roughly circular shape is shifted to a position which is closer to a circle center than to a position of a tangent line to the circular shape and which does not reach the circle center, the circular shape is formed from a scroll chamber 30 which juts out in the axial direction relative to the position of the diffuser outlet 11a and a shift chamber 32 that forms a remainder of the roughly circular shape in a direction opposite to the scroll chamber 30, and the shift chamber 32 is at least formed on the scroll flow path 13 of a winding end portion 19 in a circumferential direction of a spiral.
摘要翻译： 涡旋流路13的轴向截面形状为大致圆形，与大致圆形形状连接的扩散器出口偏移到比圆心更接近圆心的位置，而与圆形切线相对的位置 形状并且不到达圆心，圆形形状由相对于扩散器出口11a的位置沿轴向突出的涡旋室30和形成大致圆形形状的剩余部分的换档室32形成 在与涡旋室30相反的方向上，变速室32至少形成在螺旋的圆周方向上的卷绕端部19的涡旋流路13上。
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公开(公告)号：US09366265B2
公开(公告)日：2016-06-14
申请号：US13978897
申请日：2012-01-27
CPC分类号： F04D29/4206 , F04D29/403 , F04D29/4226 , F04D29/441 , F04D29/681 , F05D2250/52
摘要： In a scroll shape of a centrifugal compressor, an enlargement rate of a ratio A/R of a cross-sectional area A of a scroll portion 12 to a radius R from an axis L1 of a compressor impeller 3 to a centroid P0 of a cross section of the scroll portion is reduced from a winding start to a winding end of the scroll portion.
摘要翻译： 在离心式压缩机的涡旋形状中，涡旋部12的截面积A与压缩机叶轮3的轴线L1的相对于半径R的比A / R的增大率相对于十字形的重心P0 涡旋部的截面从涡旋部的卷绕开始减少到卷绕端。
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公开(公告)号：US20130294903A1
公开(公告)日：2013-11-07
申请号：US13978897
申请日：2012-01-27
IPC分类号： F04D29/42
CPC分类号： F04D29/4206 , F04D29/403 , F04D29/4226 , F04D29/441 , F04D29/681 , F05D2250/52
摘要： In a scroll shape of a centrifugal compressor, an enlargement rate of a ratio A/R of a cross-sectional area A of a scroll portion 12 to a radius R from an axis L1 of a compressor impeller 3 to a centroid P0 of a cross section of the scroll portion is reduced from a winding start to a winding end of the scroll portion.
摘要翻译： 在离心式压缩机的涡旋形状中，涡旋部12的截面积A与压缩机叶轮3的轴线L1的相对于半径R的比A / R的增大率相对于十字形的重心P0 涡旋部的截面从涡旋部的卷绕开始减少到卷绕端。
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公开(公告)号：US09683445B2
公开(公告)日：2017-06-20
申请号：US13813351
申请日：2011-12-05
申请人： Toru Hoshi , Isao Tomita , Kenichiro Iwakiri , Takashi Shiraishi
发明人： Toru Hoshi , Isao Tomita , Kenichiro Iwakiri , Takashi Shiraishi
CPC分类号： F01D5/225 , F04D29/284 , F04D29/30
摘要： An impeller for a centrifugal compressor is characterized in that a shroud side of a front edge 7a of a splitter blade 7 is disposed so as to be displaced toward a negative-pressure surface Sb of a full blade 5F from a position equidistant from the full blades 5R and 5F in a circumferential direction such that a blade-end leakage vortex generated during a high flow rate which occurs from a blade-end clearance between the tip of the full blade 5F and a shroud toward the portion of the front edge 7a of the splitter blade 7 gets over the front edge 7a of the splitter blade 7.
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公开(公告)号：US20130195667A1
公开(公告)日：2013-08-01
申请号：US13813351
申请日：2011-12-05
申请人： Toru Hoshi , Isao Tomita , Kenichiro Iwakiri , Takashi Shiraishi
发明人： Toru Hoshi , Isao Tomita , Kenichiro Iwakiri , Takashi Shiraishi
IPC分类号： F01D5/22
CPC分类号： F01D5/225 , F04D29/284 , F04D29/30
摘要： An impeller for a centrifugal compressor is characterized in that a shroud side of a front edge 7a of a splitter blade 7 is disposed so as to be displaced toward a negative-pressure surface Sb of a full blade 5F from a position equidistant from the full blades 5R and 5F in a circumferential direction such that a blade-end leakage vortex generated during a high flow rate which occurs from a blade-end clearance between the tip of the full blade 5F and a shroud toward the portion of the front edge 7a of the splitter blade 7 gets over the front edge 7a of the splitter blade 7.
摘要翻译： 用于离心式压缩机的叶轮的特征在于，分流叶片7的前边缘7a的护罩侧被设置成从与全叶片等距的位置朝向全叶片5F的负压表面Sb移位 5R和5F在圆周方向上产生的叶片端泄漏涡流，其在从全叶片5F的前端和护罩之间的叶片端间隙朝着前述叶片5F的前缘7a的部分发生的高流速下产生的叶片泄漏涡流 分流叶片7越过分流叶片7的前缘7a。
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公开(公告)号：US20120328444A1
公开(公告)日：2012-12-27
申请号：US13381064
申请日：2010-08-10
申请人： Koichi Sugimoto , Kenichiro Iwakiri , Isao Tomita
发明人： Koichi Sugimoto , Kenichiro Iwakiri , Isao Tomita
IPC分类号： F04D29/28
CPC分类号： F04D29/284 , F04D29/30 , F04D29/681
摘要： Interference of a leakage vortex flow generated at the tip end side of the full blade with the leading edge of the splitter blade is avoided and high pressure ratio and enhanced efficiency can be achieved. A throat of am impeller is formed so that a distance from a leading edge of a rear side full blade on the rear side of the rotation direction of the compressor to a front side full blade adjacent to the rear side full blade is minimized, and the leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the mutually adjacent full blades, on the downstream side of a leakage vortex line formed to connect the middle location of the throat to the leading edge of the front side full blade.
摘要翻译： 避免了在全叶片的前端侧产生的泄漏涡流与分流叶片的前缘的干扰，可以实现高压比和提高的效率。 叶轮的喉部被形成为使得从压缩机的旋转方向后侧的后侧全叶片的前缘到与后侧全叶片相邻的前侧全叶片的距离最小化，并且 分流叶片的前缘被放置在沿着相互相邻的完整叶片之间的流动通道流动的流体流中，在形成为将喉部的中间位置连接到前侧的前缘的泄漏涡流线的下游侧 全刀片
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公开(公告)号：US20120189454A1
公开(公告)日：2012-07-26
申请号：US13203940
申请日：2010-08-10
申请人： Kenichiro Iwakiri , Isao Tomita
发明人： Kenichiro Iwakiri , Isao Tomita
IPC分类号： F04D29/38
CPC分类号： F04D29/30 , F04D29/284
摘要： Providing an impeller of a centrifugal compressor, the impeller including, but not limited to: a plurality of full blades provided from the fluid inlet part to the fluid outlet part of the impeller, each full blade being arranged next to the adjacent full blade; a plurality of splitter blades provided on the hub surface, each splitter blade being provide between a full blade and the adjacent full blade from a location on a part way of the flow passage between the full blades to the fluid outlet part of the impeller, wherein the geometry of the flow entering part of the splitter blade is compatible with the complicated flow inside the compressor so that the evenly distributed flow rate distribution, the increased pressure ratio and the enhanced efficiency are achieved. An impeller of a centrifugal compressor, wherein, the leading edge blade angle θ in the tip end part of the flow entering front-end-part of the splitter blade 7 in the area of the higher height level from the hub surface is further inclined smoothly toward the blade suction surface side Sb of the full blade 5 in comparison with the inclination standard curve, the increased inclination angle becoming smoothly greater in response to the increase of the height level, and wherein, the leading edge blade angle θ in the hub side part of the flow entering front-end-part of the splitter blade 7 in the area of the lower height level from the hub surface is further inclined smoothly toward the blade pressure surface side Sa of the full blade 5 in comparison with the inclination standard curve, the decreased inclination angle toward minus side becoming smoothly smaller in response to the decrease of the height level.
摘要翻译： 提供离心压缩机的叶轮，叶轮包括但不限于：从流体入口部分到叶轮的流体出口部分设置的多个全叶片，每个全叶片邻近相邻的全叶片布置; 设置在轮毂表面上的多个分流叶片，每个分流叶片从完整叶片到叶轮的流体出口部分之间的流动通道的一部分路径上的整个叶片和相邻的全叶片之间提供，其中 进入分流叶片的一部分的流体的几何形状与压缩机内的复杂流动兼容，从而实现均匀分布的流量分布，增加的压力比和提高的效率。 离心压缩机的叶轮，其中，前缘叶片角度和角度; 在与叶片表面较高高度的区域中进入分流叶片7的前端的流动的前端部分进一步相对于全叶片5的叶片吸入面侧Sb平滑地倾斜，与 倾斜标准曲线，响应于高度水平的增加而增加的倾斜角度变得平滑地更大，并且其中，前缘叶片角度和角度; 在与叶片表面较低高度的区域中进入分流叶片7的前端部的流体的轮毂侧部分进一步相对于全叶片5的叶片压力表面侧Sa平滑地倾斜，与 倾斜标准曲线，减小的朝向负侧的倾斜角度随着高度水平的降低而平滑地变小。
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