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1. 发明授权

US07476081B2 Centrifugal compressing apparatus 有权
标题翻译：离心压缩装置
公开(公告)号：US07476081B2
公开(公告)日：2009-01-13
申请号：US11240527
申请日：2005-10-03
申请人： Hirotaka Higashimori , Hiroshi Kuma , Ryoma Nogami
发明人： Hirotaka Higashimori , Hiroshi Kuma , Ryoma Nogami
IPC分类号： F04D29/24
CPC分类号： F04D29/30
摘要： In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the blade is relatively large near the rear edge. The height of the blade can be made large at the rear edge side under the design restriction that an exit width of the rear edge of the blade is set to a predetermined design value. The ratio of the width of the clearance and the height of the blade is thereby made relatively large. As a result, the ratio of a flow path area occupied by a clearance flow to a flow path area occupied by a main flow is reduced. Since the pressure loss is thus made small, a drop in the efficiency can be prevented.
摘要翻译：在离心压缩装置中，叶轮的叶片的高度从其前边缘到其后边缘逐渐减小，并且叶片的高度的变化率在后边缘附近相对较大。在设计限制下叶片的后缘的出口宽度被设定为预定设计值的情况下，可以在后边缘侧使叶片的高度大。因此，间隙的宽度与叶片的高度的比例相对较大。结果，由主流所占据的间隙流量所占的流路面积与流路面积的比例降低。由于压力损失小，所以可以防止效率下降。

2. 发明申请

US20090092486A1 CENTRIFUGAL COMPRESSING APPARATUS 有权
标题翻译：离心压缩装置
公开(公告)号：US20090092486A1
公开(公告)日：2009-04-09
申请号：US12330856
申请日：2008-12-09
申请人： Hirotaka HIGASHIMORI , Hiroshi Kuma , Ryoma Nogami
发明人： Hirotaka HIGASHIMORI , Hiroshi Kuma , Ryoma Nogami
IPC分类号： F01D1/02
CPC分类号： F04D29/30
摘要： In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the blade is relatively large near the rear edge. The height of the blade can be made large at the rear edge side under the design restriction that an exit width of the rear edge of the blade is set to a predetermined design value. The ratio of the width of the clearance and the height of the blade is thereby made relatively large. As a result, the ratio of a flow path area occupied by a clearance flow to a flow path area occupied by a main flow is reduced. Since the pressure loss is thus made small, a drop in the efficiency can be prevented.
摘要翻译：在离心压缩装置中，叶轮的叶片的高度从其前边缘到其后边缘逐渐减小，并且叶片的高度的变化率在后边缘附近相对较大。在设计限制下叶片的后缘的出口宽度被设定为预定设计值的情况下，可以在后边缘侧使叶片的高度大。因此，间隙的宽度与叶片的高度的比例相对较大。结果，由主流所占据的间隙流量所占的流路面积与流路面积的比例降低。由于压力损失小，所以可以防止效率下降。

3. 发明授权

US07896618B2 Centrifugal compressing apparatus 有权
标题翻译：离心压缩装置
公开(公告)号：US07896618B2
公开(公告)日：2011-03-01
申请号：US12330856
申请日：2008-12-09
申请人： Hirotaka Higashimori , Hiroshi Kuma , Ryoma Nogami
发明人： Hirotaka Higashimori , Hiroshi Kuma , Ryoma Nogami
IPC分类号： F04D29/22
CPC分类号： F04D29/30
摘要： In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the blade is relatively large near the rear edge. The height of the blade can be made large at the rear edge side under the design restriction that an exit width of the rear edge of the blade is set to a predetermined design value. The ratio of the width of the clearance and the height of the blade is thereby made relatively large. As a result, the ratio of a flow path area occupied by a clearance flow to a flow path area occupied by a main flow is reduced. Since the pressure loss is thus made small, a drop in the efficiency can be prevented.
摘要翻译：在离心压缩装置中，叶轮的叶片的高度从其前边缘到其后边缘逐渐减小，并且叶片的高度的变化率在后边缘附近相对较大。在设计限制下叶片的后缘的出口宽度被设定为预定设计值的情况下，可以在后边缘侧使叶片的高度大。因此，间隙的宽度与叶片的高度的比例相对较大。结果，由主流所占据的间隙流量所占的流路面积与流路面积的比例降低。由于压力损失小，所以可以防止效率下降。

4. 发明申请

US20070077147A1 Centrifugal compressing apparatus 有权
标题翻译：离心压缩装置
公开(公告)号：US20070077147A1
公开(公告)日：2007-04-05
申请号：US11240527
申请日：2005-10-03
申请人： Hirotaka Higashimori , Hiroshi Kuma , Ryoma Nogami
发明人： Hirotaka Higashimori , Hiroshi Kuma , Ryoma Nogami
IPC分类号： B64C27/46
CPC分类号： F04D29/30
摘要： In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the blade is relatively large near the rear edge. The height of the blade can be made large at the rear edge side under the design restriction that an exit width of the rear edge of the blade is set to a predetermined design value. The ratio of the width of the clearance and the height of the blade is thereby made relatively large. As a result, the ratio of a flow path area occupied by a clearance flow to a flow path area occupied by a main flow is reduced and since pressure loss is thus made small, drop in the efficiency can be prevented.
摘要翻译：在离心压缩装置中，叶轮的叶片的高度从其前边缘到其后边缘逐渐减小，并且叶片的高度的变化率在后边缘附近相对较大。在设计限制下叶片的后缘的出口宽度被设定为预定设计值的情况下，可以在后边缘侧使叶片的高度大。因此，间隙的宽度与叶片的高度的比例相对较大。结果，由主流量所占据的间隙流量所占的流路面积的比例减小，因此压力损失小，能够防止效率下降。

5. 发明申请

US20070134086A1 Impeller for compressor 审中-公开
标题翻译：压缩机叶轮
公开(公告)号：US20070134086A1
公开(公告)日：2007-06-14
申请号：US10577715
申请日：2004-12-02
申请人： Hirotaka Higashimori , Hiroshi Kuma , Kunio Sumida , Toru Suita
发明人： Hirotaka Higashimori , Hiroshi Kuma , Kunio Sumida , Toru Suita
IPC分类号： F04D29/44
CPC分类号： F04D29/284 , F04D29/681
摘要： An object is to improve the efficiency of a compressor by preventing localized concentration of a boundary layer occurring on the surface of a hub, and by inducing a reduction in the thickness of the boundary layer. There is a compressor impeller having a plurality of blades, and a hub disposed at the root of this plurality of blades, and in which at least part of the surface of the hub on which a fluid flows is inclined in relation to an axis of rotation, wherein a boundary layer reduction part which induces a reduction in the thickness of a boundary layer occurring due to a flow of fluid is provided on the surface of the hub.
摘要翻译：目的是通过防止发生在轮毂表面上的边界层的局部集中，并且通过引起边界层的厚度的降低来提高压缩机的效率。存在具有多个叶片的压缩机叶轮和设置在该多个叶片的根部处的毂，并且其中流体流过的毂的表面的至少一部分相对于旋转轴线倾斜其特征在于，在所述轮毂的表面设置有由于流体流动引起的边界层的厚度减小的边界层还原部。

6. 发明申请

US20050254954A1 Mixed flow compressor impeller 审中-公开
标题翻译：混流式压缩机叶轮
公开(公告)号：US20050254954A1
公开(公告)日：2005-11-17
申请号：US11142249
申请日：2005-06-02
申请人： Hirotaka Higashimori , Hiroshi Kuma , Kunio Sumida , Toru Suita
发明人： Hirotaka Higashimori , Hiroshi Kuma , Kunio Sumida , Toru Suita
IPC分类号： F02C3/08 , F04D17/06 , F04D29/28 , F04D29/30 , F04D29/44 , F03B1/00
CPC分类号： F04D29/30 , F04D17/06 , F04D29/284
摘要： An object is to provide an impeller which can suppress or prevent reversed flow of a fluid within a diffuser and raise the efficiency of a mixed flow compressor. In an impeller of a mixed flow compressor that has a plurality of blades, and a hub disposed at the root of this plurality of blades, and in which the surface of the hub on which trailing edges of the plurality of blades are located, is inclined with respect to a rotation axis in a plane that includes the rotation axis, the trailing edges of the plurality of blades are formed so that they are positioned on a line approximately parallel to an axis of rotation of the hub.
摘要翻译：本发明的目的是提供一种叶轮，其可以抑制或防止扩散器内的流体反向流动并提高混合流动压缩机的效率。在具有多个叶片的混合流动压缩机的叶轮中，以及设置在该多个叶片的根部的毂，并且其中多个叶片的后缘在其上所在的轮毂的表面倾斜相对于包括旋转轴的平面中的旋转轴线，多个叶片的后缘形成为使得它们位于大致平行于毂的旋转轴线的线上。

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