公开(公告)号：US20120321440A1

公开(公告)日：2012-12-20

申请号：US13578163

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F01D1/12

CPC分类号： F04D29/4213 ,  F04D17/10 ,  F04D29/685

摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial distance Sr from an upstream end face of the suction ring groove 1 to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A·sin(α+θ0)+A0 and is distributed in a sinusoidal shape in a circumferential direction, an initial phase angle θ0 is in a range of 0°≦θ0≦360°, and a circumferential angle α of the casing 10 has a definition range of θ0≦α≦θ0+360°. In the expression, A denotes amplitude of distribution of the axial distance Sr or the width br, and A0 denotes an average of the axial distance Sr or the width br.

摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 从吸入环槽1的上游端面到叶轮全叶片前缘4或吸入环槽1的宽度br的轴向距离Sr表示为A·sin（α+＆eta; 0）+ A0，为 分布在圆周方向上的正弦形状，初始相位角和角度0在0°＆lt; lE;＆amp; t; 0＆nlE; 360°的范围内，并且壳体10的圆周角度α具有＆...的定义范围; 0＆ ;α＆nlE;＆thetas; 0 + 360°。 在表达式中，A表示轴向距离Sr或宽度br的分布的振幅，A0表示轴向距离Sr或宽度br的平均值。

公开(公告)号：US09234526B2

公开(公告)日：2016-01-12

申请号：US13578137

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F04D29/42 ,  F04D29/68

CPC分类号： F04D29/4213 ,  F04D17/10 ,  F04D29/685

摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial-direction position Sr from an upstream end face of the suction ring groove to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A(α·D−β·D)2+A0 and is distributed in a parabolic shape in a circumferential direction. An initial phase angle θ0 is in a range of 0≦θ0≦2π. A circumferential angle α of the casing has a definition range of θ0≦α≦θ0+2π. In the expression, A denotes a parameter of the parabola in the axial-direction position Sr or the width br, and A0 denotes an extreme of the axial-direction position Sr or the width br when corresponding circumferential angle β and the α are equal at an extreme point of distribution of the parabola.

摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 从吸入环槽的上游端面到吸入环槽1的叶轮全叶片前缘4或宽度br的轴向位置Sr表示为A（α·D-＆bgr·D）2+ A0并且沿圆周方向以抛物线形状分布。 初始相位角和角度0在0＆nlE;＆Thetas; 0＆nlE; 2＆pgr的范围内。 外壳的圆周角度α具有＆...的定义范围; 0＆nlE;α＆nlE;＆thetas; 0 + 2＆pgr。 在该表达式中，A表示轴向位置Sr或宽度br的抛物线的参数，A0表示当对应的圆周角度＆bgr时的轴向位置Sr或宽度br的极端值。 并且α在抛物线的极端分布点处相等。

公开(公告)号：US10273973B2

公开(公告)日：2019-04-30

申请号：US13578163

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F04D17/10 ,  F04D29/42 ,  F04D29/68

摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial distance Sr from an upstream end face of the suction ring groove 1 to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A·sin(α+θ0)+A0 and is distributed in a sinusoidal shape in a circumferential direction, an initial phase angle θ0 is in a range of 0°≤θ0≤360°, and a circumferential angle α of the casing 10 has a definition range of θ0≤α≤θ0+360°. In the expression, A denotes amplitude of distribution of the axial distance Sr or the width br, and A0 denotes an average of the axial distance Sr or the width br.

公开(公告)号：US09816522B2

公开(公告)日：2017-11-14

申请号：US13578188

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F04D17/16 ,  F04D29/42 ,  F04D29/68

CPC分类号： F04D29/4213 ,  F04D29/685

摘要： A centrifugal compressor has a casing 7. In the casing 7 is formed a back-flow channel 9 to return fluid from a downstream position of an impeller full blade leading edge 6a to an upstream position of the impeller full blade leading edge 6a. The back-flow channel 9 includes a suction ring groove 9a and a back-flow ring groove 9b. The suction ring groove opens at the downstream position on the inner face 7a of the casing 7, and extends in the circumferential direction. The back-flow ring groove opens at the upstream position on the inner face 7a, and extends in the circumferential direction. Distribution in the circumferential direction of the axial-direction position of the suction ring groove 9a or a width of the suction ring groove 9a is asymmetric with reference to the rotation axis.

公开(公告)号：US09151297B2

公开(公告)日：2015-10-06

申请号：US13578101

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F04D29/42 ,  F04D29/68

CPC分类号： F04D29/4213 ,  F04D29/685 ,  F05D2250/73

摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. A position or a width of the suction ring groove 1 is distributed in an arc shape in a circumferential direction, and the arc has a center angle α in a range of 0

摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 吸入环槽1的位置或宽度在圆周方向上分布成圆弧状，电弧的中心角α为0 <α<0.01; 30°的范围。

公开(公告)号：US20120315127A1

公开(公告)日：2012-12-13

申请号：US13578188

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F01D1/12

CPC分类号： F04D29/4213 ,  F04D29/685

摘要： A centrifugal compressor has a casing 7. In the casing 7 is formed a back-flow channel 9 to return fluid from a downstream position of an impeller full blade leading edge 6a to an upstream position of the impeller full blade leading edge 6a. The back-flow channel 9 includes a suction ring groove 9a and a back-flow ring groove 9b. The suction ring groove opens at the downstream position on the inner face 7a of the casing 7, and extends in the circumferential direction. The back-flow ring groove opens at the upstream position on the inner face 7a, and extends in the circumferential direction. Distribution in the circumferential direction of the axial-direction position of the suction ring groove 9a or a width of the suction ring groove 9a is asymmetric with reference to the rotation axis.

摘要翻译： 离心压缩机具有壳体7.在壳体7中形成有用于将流体从叶轮全叶片前缘6a的下游位置返回到叶轮全叶片前缘6a的上游位置的后部流路9。 背流通道9包括吸入环槽9a和后流环槽9b。 吸入环槽在壳体7的内表面7a的下游位置开口，并且在圆周方向上延伸。 背流环槽在内表面7a上的上游位置开口，并沿圆周方向延伸。 吸入环槽9a的轴向位置的圆周方向的分布或者吸入环槽9a的宽度相对于旋转轴线是不对称的。

公开(公告)号：US20120308372A1

公开(公告)日：2012-12-06

申请号：US13578137

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F04D29/42

CPC分类号： F04D29/4213 ,  F04D17/10 ,  F04D29/685

摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. An axial-direction position Sr from an upstream end face of the suction ring groove to an impeller full blade leading edge 4 or a width br of the suction ring groove 1 is represented as A(α·D−β·D)2+A0 and is distributed in a parabolic shape in a circumferential direction. An initial phase angle θ0 is in a range of 0≦θ0≦2π. A circumferential angle α of the casing has a definition range of θ0≦α≦θ0+2λ. In the expression, A denotes a parameter of the parabola in the axial-direction position Sr or the width br, and A0 denotes an extreme of the axial-direction position Sr or the width br when corresponding circumferential angle β and the α are equal at an extreme point of distribution of the parabola.

摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 从吸入环槽的上游端面到吸入环槽1的叶轮全叶片前缘4或宽度br的轴向位置Sr表示为A（α·D-＆bgr·D）2+ A0并且沿圆周方向以抛物线形状分布。 初始相位角和角度0在0＆nlE;＆Thetas; 0＆nlE; 2＆pgr的范围内。 壳体的圆周角度α具有＆...的定义范围; 0＆nlE;α＆nlE;＆thetas; 0 +2λ。 在该表达式中，A表示轴向位置Sr或宽度br的抛物线的参数，A0表示当对应的圆周角度＆bgr时的轴向位置Sr或宽度br的极端; 并且α在抛物线的极端分布点处相等。

公开(公告)号：US20120308371A1

公开(公告)日：2012-12-06

申请号：US13578101

申请日：2011-02-03

申请人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

发明人： Xinqian Zheng ,  Yun Lin ,  Yangjun Zhang ,  Mingyang Yang ,  Takahiro Bamba ,  Hideaki Tamaki

IPC分类号： F04D17/10

CPC分类号： F04D29/4213 ,  F04D29/685 ,  F05D2250/73

摘要： A centrifugal compressor includes an asymmetric self-recirculating casing treatment that includes, on an inner face of a casing 10, a suction ring groove 1, a ring guide channel 2 and a back-flow ring groove 3 to form a self-recirculating channel. A position or a width of the suction ring groove 1 is distributed in an arc shape in a circumferential direction, and the arc has a center angle a in a range of 0

摘要翻译： 离心压缩机包括不对称的自再循环壳体处理，其在壳体10的内表面上包括吸入环槽1，环形引导通道2和回流环槽3，以形成自再循环通道。 吸入环槽1的位置或宽度在圆周方向上分布成圆弧状，电弧的中心角α在0 <α30°的范围内。