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公开(公告)号：US08197195B2
公开(公告)日：2012-06-12
申请号：US12093648
申请日：2005-11-16
IPC分类号： F01D17/16
CPC分类号： F01D17/143 , F05D2220/40 , F05D2240/12 , F05D2250/70
摘要： A turbocharger having a variable nozzle with stepped two-stage vanes (50), the variable nozzle comprising a tubular piston (70) disposed in the bore (44) of the turbine housing (38) such that the piston (70) is axially slidable adjacent to the vanes (50) that extend across the nozzle. Each vane defines a first vane stage (50a) proximate the free end of the vane, the second vane stage (50b) having a different aerodynamic contour in comparison with the first vane stage (50a), each vane comprising a step (60) transitioning from the first vane stage (50a) to the second vane stage (50b). The piston (70) in a closed position closes the second vane stage (50b) so that exhaust gas flows only through the first vane stage (50a). The second vane stage (50b) is progressively opened as the piston (70) is axially slid toward an open position.
摘要翻译： 一种涡轮增压器，其具有带有台阶式两级叶片（50）的可变喷嘴，该可变喷嘴包括设置在涡轮机壳体（38）的孔（44）中的管状活塞（70），使得活塞（70）可轴向滑动 邻近延伸穿过喷嘴的叶片（50）。 每个叶片限定靠近叶片自由端的第一叶片台（50a），与第一叶片台（50a）相比，第二叶片台（50b）具有不同的空气动力学轮廓，每个叶片包括台阶（60） 从第一叶片级（50a）到第二叶片级（50b）。 处于关闭位置的活塞（70）关闭第二叶片级（50b），使得排气仅流过第一叶片级（50a）。 随着活塞（70）朝向打开位置轴向滑动，第二叶片台（50b）逐渐打开。
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公开(公告)号：US20080317593A1
公开(公告)日：2008-12-25
申请号：US12093648
申请日：2005-11-16
IPC分类号： F01D25/24
CPC分类号： F01D17/143 , F05D2220/40 , F05D2240/12 , F05D2250/70
摘要： A turbocharger having a variable nozzle with stepped two-stage vanes (50), the variable nozzle comprising a tubular piston (70) disposed in the bore (44) of the turbine housing (38) such that the piston (70) is axially slidable adjacent to the vanes (50) that extend across the nozzle. Each vane defines a first vane stage (50a) proximate the free end of the vane, the second vane stage (50b) having a different aerodynamic contour in comparison with the first vane stage (50a), each vane comprising a step (60) transitioning from the first vane stage (50a) to the second vane stage (50b). The piston (70) in a closed position closes the second vane stage (50b) so that exhaust gas flows only through the first vane stage (50a). The second vane stage (50b) is progressively opened as the piston (70) is axially slid toward an open position.
摘要翻译： 一种涡轮增压器，其具有带有台阶式两级叶片（50）的可变喷嘴，该可变喷嘴包括设置在涡轮机壳体（38）的孔（44）中的管状活塞（70），使得活塞（70）可轴向滑动 邻近延伸穿过喷嘴的叶片（50）。 每个叶片限定靠近叶片自由端的第一叶片台（50a），与第一叶片台（50a）相比，第二叶片台（50b）具有不同的空气动力学轮廓，每个叶片包括台阶（60） 从第一叶片级（50a）到第二叶片级（50b）。 处于关闭位置的活塞（70）关闭第二叶片级（50b），使得排气仅流过第一叶片级（50a）。 随着活塞（70）朝向打开位置轴向滑动，第二叶片台（50b）逐渐打开。
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公开(公告)号：US07338254B2
公开(公告)日：2008-03-04
申请号：US11289214
申请日：2005-11-29
IPC分类号： F01D25/24
CPC分类号： F01D17/143 , F01D17/167 , F05D2220/40 , F05D2230/642 , F05D2240/10
摘要： A turbocharger having a sliding piston assembly comprising a tubular piston disposed in the bore of the turbine housing such that the piston is axially slidable relative to the turbine housing. The piston assembly further comprises a tubular carrier inserted axially into the bore of the turbine housing surrounding the piston and fixed against axial movement relative to the turbine housing, a radially outer surface of the carrier engaging an inner surface of the bore and a radially inner surface of the carrier being slidably engaged by a radially outer surface of the piston. The carrier defines an axial split extending a length of the carrier, and the carrier is resiliently flexible. Accordingly, the axial split allows the carrier to expand and contract in diameter.
摘要翻译： 一种具有滑动活塞组件的涡轮增压器，包括设置在涡轮机壳体的孔中的管状活塞，使得活塞相对于涡轮机壳体可轴向滑动。 活塞组件还包括轴向插入涡轮机壳体的孔中的管状载体，围绕活塞并固定以抵抗相对于涡轮机壳体的轴向移动，载体的径向外表面接合孔的内表面和径向内表面 的载体由活塞的径向外表面可滑动地接合。 载体限定延伸载体长度的轴向分裂，并且载体具有弹性柔性。 因此，轴向分裂允许载体的直径膨胀和收缩。
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公开(公告)号：US08191367B2
公开(公告)日：2012-06-05
申请号：US12093747
申请日：2005-11-16
CPC分类号： F02B37/22 , F01D17/143 , F01D17/146 , F05D2220/40 , Y02T10/144
摘要： A sliding piston cartridge (50) for a turbocharger (20) that is insertable into a bore (44) in the turbine housing (38) as a unit and that includes all of the components of a sliding piston type variable nozzle. The sliding piston cartridge comprises a carrier (52) having a tubular portion that interfaces with the bore of the turbine housing. A sliding piston (62) is disposed within the carrier and makes sliding contact therewith. Vanes (58) are mounted on or formed as a part of the carrier at its upstream end, the vanes extending across a turbine nozzle. The piston slides between a closed position and an open position relative to the carrier. The tubular portion of the carrier can include openings (66) that are progressively uncovered by the piston as it moves toward the open position, to allow additional flow to enter the turbine wheel without passing through the vanes.
摘要翻译： 一种用于涡轮增压器（20）的滑动活塞筒（50），其可作为一个单元插入涡轮机壳体（38）中的孔（44）中并且包括滑动活塞式可变喷嘴的所有部件。 滑动活塞筒包括具有与涡轮壳体的孔相接合的管状部分的托架（52）。 滑动活塞（62）设置在载体内并与其滑动接触。 叶片（58）在其上游端安装在载体的一部分上或形成为载体的一部分，叶片延伸穿过涡轮喷嘴。 活塞在关闭位置和相对于载体的打开位置之间滑动。 载体的管状部分可以包括当活塞向打开位置移动时逐渐未被活塞覆盖的开口（66），以允许额外的流动进入涡轮机叶轮而不通过叶片。
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公开(公告)号：US07249930B2
公开(公告)日：2007-07-31
申请号：US11289217
申请日：2005-11-29
IPC分类号： F03B3/18
CPC分类号： F01D17/105 , F01D17/143 , F02B37/18 , F05D2220/40 , F05D2250/41 , F05D2260/52
摘要： A turbine housing assembly includes a tubular piston disposed in a bore of a turbine housing and axially slidable between a closed position and an open position for blocking a nozzle by an amount dependent on axial positioning of the piston. A bypass control member is disposed in the turbine housing and is slidable between a no-bypass position closing a bypass passage and a open bypass opening the bypass passage. The piston is structured and arranged to slide relative to the bypass control member for a part of a full stroke of the piston from the closed position toward the open position thereof, and then to engage the bypass control member and cause the bypass control member to slide together with the piston as the piston further slides toward the open position thereof such that the bypass control member is moved toward the bypass position.
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公开(公告)号：US20090077966A1
公开(公告)日：2009-03-26
申请号：US12093747
申请日：2005-11-16
CPC分类号： F02B37/22 , F01D17/143 , F01D17/146 , F05D2220/40 , Y02T10/144
摘要： A sliding piston cartridge (50) for a turbocharger (20) that is insertable into a bore (44) in the turbine housing (38) as a unit and that includes all of the components of a sliding piston type variable nozzle. The sliding piston cartridge comprises a carrier (52) having a tubular portion that interfaces with the bore of the turbine housing. A sliding piston (62) is disposed within the carrier and makes sliding contact therewith. Vanes (58) are mounted on or formed as a part of the carrier at its upstream end, the vanes extending across a turbine nozzle. The piston slides between a closed position and an open position relative to the carrier. The tubular portion of the carrier can include openings (66) that are progressively uncovered by the piston as it moves toward the open position, to allow additional flow to enter the turbine wheel without passing through the vanes.
摘要翻译： 一种用于涡轮增压器（20）的滑动活塞筒（50），其可作为一个单元插入涡轮壳体（38）中的孔（44）中，并且包括滑动活塞式可变喷嘴的所有部件。 滑动活塞筒包括具有与涡轮壳体的孔相接合的管状部分的托架（52）。 滑动活塞（62）设置在载体内并与其滑动接触。 叶片（58）在其上游端安装在载体的一部分上或形成为载体的一部分，叶片延伸穿过涡轮喷嘴。 活塞在关闭位置和相对于载体的打开位置之间滑动。 载体的管状部分可以包括当活塞向打开位置移动时逐渐未被活塞覆盖的开口（66），以允许额外的流动进入涡轮机叶轮而不通过叶片。
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