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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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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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