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公开(公告)号：US20080131267A1
公开(公告)日：2008-06-05
申请号：US11667799
申请日：2004-11-16
申请人： Philippe Renaud , Denis Tisserant
发明人： Philippe Renaud , Denis Tisserant
CPC分类号： F01D17/165 , F01D5/141 , F05D2220/40 , F05D2250/16 , F05D2250/711 , F05D2250/712 , F05D2250/713
摘要： There is provided a turbocharger with a variable nozzle assembly having a plurality of cambered vanes positioned annularly around a turbine wheel, each vane (20) being pivotable around a pivot point (Pp) and being configured to have a leading edge (Ple) and a trailing edge (Pte) connected by an outer airfoil surface (2) and an inner airfoil surface (4), said outer airfoil surface (2) being substantially convex and said inner airfoil surface (4) having a convex section at the leading edge (Ple) which has a local extreme (Pex) of curvature and transitions into a concave section towards the trailing edge (Pte). The positions of the pivot point (Pp) and the local extreme (Pex) are set such that, even when the vanes are placed in a closed position, the exhaust gas stream exercises a positive torque on the vanes which tends to open the nozzle.
摘要翻译： 提供了一种具有可变喷嘴组件的涡轮增压器，其具有围绕涡轮机轮环定位的多个弧形叶片，每个叶片（20）围绕枢转点（Pp）可枢转并且构造成具有前缘（Ple）和 后翼缘（Pte）由外翼型表面（2）和内翼型表面（4）连接，所述外翼型表面（2）基本上是凸的，并且所述内翼型表面（4）在前缘具有凸形部分 Ple），其具有曲率的局部极值（Pex）并且朝向后缘（Pte）转变成凹部。 枢轴点（Pp）和局部极限（Pex）的位置被设定为使得即使当叶片被置于关闭位置时，排气流对趋向于打开喷嘴的叶片施加正扭矩。
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公开(公告)号：US08109715B2
公开(公告)日：2012-02-07
申请号：US11667799
申请日：2004-11-16
申请人： Philippe Renaud , Denis Tisserant
发明人： Philippe Renaud , Denis Tisserant
IPC分类号： F01D9/02
CPC分类号： F01D17/165 , F01D5/141 , F05D2220/40 , F05D2250/16 , F05D2250/711 , F05D2250/712 , F05D2250/713
摘要： There is provided a turbocharger with a variable nozzle assembly having a plurality of cambered vanes positioned annularly around a turbine wheel, each vane (20) being pivotable around a pivot point (Pp) and being configured to have a leading edge (Ple) and a trailing edge (Pte) connected by an outer airfoil surface (2) and an inner airfoil surface (4), said outer airfoil surface (2) being substantially convex and said inner airfoil surface (4) having a convex section at the leading edge (Ple) which has a local extreme (Pex) of curvature and transitions into a concave section towards the trailing edge (Pte). The positions of the pivot point (Pp) and the local extreme (Pex) are set such that, even when the vanes are placed in a closed position, the exhaust gas stream exercises a positive torque on the vanes which tends to open the nozzle.
摘要翻译： 提供了一种具有可变喷嘴组件的涡轮增压器，其具有围绕涡轮机轮环定位的多个弧形叶片，每个叶片（20）围绕枢转点（Pp）可枢转并且构造成具有前缘（Ple）和 后翼缘（Pte）由外翼型表面（2）和内翼型表面（4）连接，所述外翼型表面（2）基本上是凸的，并且所述内翼型表面（4）在前缘具有凸形部分 Ple），其具有曲率的局部极值（Pex）并且朝向后缘（Pte）转变成凹部。 枢轴点（Pp）和局部极限（Pex）的位置被设定为使得即使当叶片被置于关闭位置时，排气流对趋向于打开喷嘴的叶片施加正扭矩。
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公开(公告)号：US20070031261A1
公开(公告)日：2007-02-08
申请号：US10546384
申请日：2003-02-19
IPC分类号： B64C11/16
CPC分类号： F01D17/143 , F01D5/048 , F05D2220/40
摘要： The invention relates to a turbine (1) for a turbocharger, comprising a turbine wheel (2) and a turbine housing (5) forming a passage (6) for guiding a fluid flow to the turbine wheel (2), said passage (6) comprising a variable throat providing a throat area (8) as a smallest cross section of the fluid flow, wherein the variable throat is always defined by a annular member (7) surrounding the turbine wheel (2) and being movable in the axial direction of the turbine wheel (2).
摘要翻译： 本发明涉及一种用于涡轮增压器的涡轮机（1），其包括涡轮机叶轮（2）和形成用于将流体流引导到涡轮机叶轮（2）的通道（6）的涡轮机壳体（5），所述通道 ），其包括提供作为所述流体流的最小横截面的喉部区域（8）的可变喉部，其中所述可变喉道总是由围绕所述涡轮机叶轮（2）的环形构件（7）限定，并且可在轴向方向上移动 的涡轮机轮（2）。
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公开(公告)号：US20090104023A1
公开(公告)日：2009-04-23
申请号：US11989333
申请日：2005-07-19
CPC分类号： F01D5/141 , F01D17/165 , F02C6/12 , F05D2220/40
摘要： The shape, of a vane for use in a variable nozzle assembly of a turbocharger was designed, including a step of defining a camberline curve and a thickness curve by means of two Bézier curves having a certain number of control points, and a step of applying computational fluid dynamics analysis and a Design of Experiments methodology for optimizing the setting of the control points to improve performance of the vane. As result, a distinct vane shape as shown in the drawings was obtained.
摘要翻译： 设计了用于涡轮增压器的可变喷嘴组件中的叶片的形状，包括通过具有一定数量的控制点的两个贝塞尔曲线限定弯度曲线和厚度曲线的步骤，以及应用 计算流体动力学分析和实验设计方法，优化控制点的设置，以提高叶片的性能。 结果，得到如图所示的不同的叶片形状。
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公开(公告)号：US08608433B2
公开(公告)日：2013-12-17
申请号：US10546384
申请日：2003-02-19
CPC分类号： F01D17/143 , F01D5/048 , F05D2220/40
摘要： The invention relates to a turbine (1) for a turbocharger, comprising a turbine wheel (2) and a turbine housing (5) forming a passage (6) for guiding a fluid flow to the turbine wheel (2), said passage (6) comprising a variable throat providing a throat area (8) as a smallest cross section of the fluid flow, wherein the variable throat is always defined by a annular member (7) surrounding the turbine wheel (2) and being movable in the axial direction of the turbine wheel (2).
摘要翻译： 本发明涉及一种用于涡轮增压器的涡轮机（1），其包括涡轮机叶轮（2）和形成用于将流体流引导到涡轮机叶轮（2）的通道（6）的涡轮机壳体（5），所述通道 ），其包括提供作为所述流体流的最小横截面的喉部区域（8）的可变喉部，其中所述可变喉道总是由围绕所述涡轮机叶轮（2）的环形构件（7）限定，并且可在轴向方向上移动 的涡轮机轮（2）。
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