公开(公告)号：US20070122296A1

公开(公告)日：2007-05-31

申请号：US11290381

申请日：2005-11-30

申请人： Steven Arnold ,  Gary Vrbas ,  Kristian Dullack ,  Glenn Thompson

发明人： Steven Arnold ,  Gary Vrbas ,  Kristian Dullack ,  Glenn Thompson

IPC分类号： F04B17/00

CPC分类号： F04D25/04 ,  F04D17/122 ,  F04D29/053 ,  F04D29/266 ,  F05B2220/40

摘要： A turbocharger with a two-stage compressor having first- and second-stage impellers mounted on a common shaft in a back-to-back configuration. The first-stage impeller has a boreless configuration, defining an unthreaded pilot hole receiving an unthreaded end of the shaft so as to establish a coaxial relationship between the impeller and the shaft. The first impeller further defines a hollow cylindrical pilot member that projects from the back of the impeller and is received in a portion of the bore through the second-stage impeller to position the impellers coaxially with each other. The shaft passes through the pilot member and is externally threaded for engaging threads on the inner surface of the pilot member to secure the impellers to the shaft. The bore of the second impeller has a second portion that engages an outer cylindrical surface of the shaft to establish a coaxial relationship between the shaft and impeller.

摘要翻译： 具有两级压缩机的涡轮增压器具有以后后配置安装在公共轴上的第一级和第二级叶轮。 第一级叶轮具有无孔构造，限定了接收轴的无螺纹端的无螺纹导向孔，以便在叶轮和轴之间建立同轴的关系。 第一叶轮还限定了一个中空的圆柱形引导件，该中空圆柱形引导件从叶轮的后部突出，并被接纳在孔的一部分中，通过第二级叶轮将叶轮彼此同轴定位。 轴通过导向构件并且被外螺纹用于接合导向构件的内表面上的螺纹，以将叶轮固定到轴上。 第二叶轮的孔具有接合轴的外圆柱形表面的第二部分，以在轴和叶轮之间建立同轴的关系。

公开(公告)号：US06971377B2

公开(公告)日：2005-12-06

申请号：US10414351

申请日：2003-04-15

申请人： Michael A. Moyer ,  Glenn F. Thompson ,  Roland Dilley ,  Kristian Dullack ,  Sara Chastain ,  Freidoon Rastegar

发明人： Michael A. Moyer ,  Glenn F. Thompson ,  Roland Dilley ,  Kristian Dullack ,  Sara Chastain ,  Freidoon Rastegar

IPC分类号： F02M25/07

CPC分类号： F02M26/26 ,  F02M26/25

摘要： An EGR cooler comprises a cooling core having a plurality of passages for accommodating the flow of exhaust gas therethrough, an exhaust gas inlet chamber connected to the cooling core, for receiving exhaust gas from an internal combustion engine and passing the exhaust gas to the cooling core, and an exhaust gas outlet chamber separate from the exhaust gas inlet chamber and connected to the cooling core for receiving exhaust gas from the core. The cooler further includes means for permitting the controlled passage of exhaust gas from the exhaust gas inlet chamber to the exhaust gas outlet chamber without passing through the cooling core, said means being positioned upstream from the exhaust gas outlet chamber. Configured in this manner, the EGR cooler permits the mixing of cooled exhaust gas with uncooled exhaust to provide a desired exiting gas temperature that is below an exhaust gas dew point.

摘要翻译： EGR冷却器包括具有多个通道以用于容纳排出气流的冷却芯，连接到冷却芯的排气入口室，用于接收来自内燃机的废气并将废气送至冷却芯 ，以及与排气入口室分离并连接到冷却芯的排气出口室，用于从核心接收废气。 冷却器还包括用于允许废气从排气入口室受控地通过排气出口室而不通过冷却芯的装置，所述装置位于废气出口室的上游。 以这种方式配置，EGR冷却器允许冷却的废气与非冷却的排气混合，以提供低于废气露点的期望的出口气体温度。

公开(公告)号：US20060198727A1

公开(公告)日：2006-09-07

申请号：US11069336

申请日：2005-03-01

申请人： Steven Arnold ,  Kristian Dullack ,  David Calta ,  Glenn Thompson

发明人： Steven Arnold ,  Kristian Dullack ,  David Calta ,  Glenn Thompson

IPC分类号： F03B11/00

CPC分类号： F04D25/04 ,  F01D9/026 ,  F02B37/013 ,  F02C6/12 ,  F04D17/12 ,  F04D27/0207 ,  F04D29/4213 ,  F04D29/444 ,  F04D29/685 ,  F05D2250/51 ,  Y02T10/144

摘要： A two-stage radial compressor having a ported second-stage shroud, forming a passive surge control system. Thus, some proportion of the fluid is allowed to flow between the second-stage of the compressor in the vicinity of the impeller blade tips, through a port in the shroud into an upstream portion of the compressor flow path that leads into the second-stage impeller inlet. The fluid is allowed to flow in either direction, depending on the pressure difference existing between the two locations. Surge margin at higher pressure ratios is significantly increased by the ported second-stage shroud.

摘要翻译： 具有端口的第二级护罩的两级径向压缩机，形成被动浪涌控制系统。 因此，允许一部分流体在叶轮叶片尖端附近的压缩机的第二级之间通过护罩中的端口流入压缩机流动路径的上游部分，其进入第二级 叶轮入口。 允许流体沿任一方向流动，这取决于存在于两个位置之间的压力差。 通过移动的第二级护罩，在较高压力比下的浪涌裕度显着增加。