Exhaust gas recirculation system with variable geometry turbine and bypass venturi assembly
    4.
    发明授权
    Exhaust gas recirculation system with variable geometry turbine and bypass venturi assembly 有权
    具有可变几何涡轮机和旁路文丘里管组件的废气再循环系统

    公开(公告)号:US06609373B2

    公开(公告)日:2003-08-26

    申请号:US10025655

    申请日:2001-12-19

    IPC分类号: F02B3344

    摘要: An internal combustion engine, particularly suitable for use in a work machine, is provided with an exhaust manifold, a turbocharger, and a bypass venturi assembly. The turbocharger includes a turbine and a compressor, with the turbine having a variable geometry inlet coupled with the exhaust manifold, and the compressor having an outlet. The bypass venturi assembly includes a housing having an outlet, a combustion air inlet and an exhaust gas inlet. The combustion air inlet is coupled with the compressor outlet. The exhaust gas inlet is coupled with the exhaust manifold. A center piece is positioned within the housing and is in communication with the combustion air inlet. The center piece defines a combustion air bypass section therein. A combustion air bypass valve is positioned in association with the combustion air bypass section. The exhaust gas valve is positioned in association with the exhaust gas inlet. The variable geometry inlet of the turbine allows the pressure ratio of the compressed combustion air to be varied, thereby improving the mixing efficiency of the exhaust gas with the combustion air.

    摘要翻译: 特别适用于作业机械的内燃机设置有排气歧管,涡轮增压器和旁路文氏管组件。 涡轮增压器包括涡轮机和压缩机,涡轮机具有与排气歧管连接的可变几何入口,并且压缩机具有出口。 旁路文氏管组件包括具有出口,燃烧空气入口和废气入口的壳体。 燃烧空气入口与压缩机出口连接。 排气入口与排气歧管连接。 中心件位于壳体内并与燃烧空气入口连通。 中心件在其中限定燃烧空气旁通部分。 燃烧空气旁通阀与燃烧空气旁路部分相关联地定位。 排气阀与排气入口相关联地定位。 涡轮机的可变几何形状入口允许压缩的燃烧空气的压力比改变,从而提高废气与燃烧空气的混合效率。

    Twin variable nozzle turbine exhaust gas recirculation system
    5.
    发明授权
    Twin variable nozzle turbine exhaust gas recirculation system 有权
    双变量喷嘴涡轮排气再循环系统

    公开(公告)号:US06484499B2

    公开(公告)日:2002-11-26

    申请号:US09755356

    申请日:2001-01-05

    IPC分类号: F02B3344

    摘要: An internal combustion engine, particularly suitable for a vehicle, is provided with a plurality of combustion cylinders, at least a first exhaust manifold and a second exhaust manifold and at least one intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders. Each intake manifold is coupled with a plurality of the combustion cylinders. A first turbocharger includes a first turbine having at least one inlet and an outlet, and a first compressor having an inlet and an outlet. Then at least one first turbine inlet has a controllable, variable intake nozzle fluidly coupled with the first exhaust manifold. A second turbocharger includes a second turbine having an inlet and an outlet, and a second compressor having an inlet and an outlet. The second turbine inlet has a controllable, variable intake nozzle fluidly coupled with the second exhaust manifold. The first compressor outlet is fluidly coupled with the second compressor inlet. The engine has improved performance, is compact in design and is economical in operation.

    摘要翻译: 特别适用于车辆的内燃机设置有多个燃烧缸,至少第一排气歧管和第二排气歧管以及至少一个进气歧管。 每个排气歧管与多个燃烧气缸联接。 每个进气歧管与多个燃烧气缸联接。 第一涡轮增压器包括具有至少一个入口和出口的第一涡轮机和具有入口和出口的第一压缩机。 然后,至少一个第一涡轮机入口具有与第一排气歧管流体耦合的可控制的可变进气喷嘴。 第二涡轮增压器包括具有入口和出口的第二涡轮机和具有入口和出口的第二压缩机。 第二涡轮机入口具有与第二排气歧管流体耦合的可控制的可变进气喷嘴。 第一压缩机出口与第二压缩机入口流体耦合。 发动机性能提高,设计紧凑,操作经济。

    Exhaust gas recirculation system in an internal combustion engine
    6.
    发明授权
    Exhaust gas recirculation system in an internal combustion engine 有权
    内燃机废气再循环系统

    公开(公告)号:US06321537B1

    公开(公告)日:2001-11-27

    申请号:US09706481

    申请日:2000-11-03

    IPC分类号: F02B3344

    摘要: An exhaust gas recirculation system, particularly suitable for use in an internal combustion engine, is provided with a plurality of combustion cylinders, at least one exhaust manifold, and at least one intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders, and each intake manifold is coupled with a plurality of combustion cylinders. A first turbocharger includes a first turbine having at least one inlet and an outlet, and a first compressor having an inlet and an outlet. The at least one first turbine inlet is fluidly coupled with a corresponding exhaust manifold. A second turbocharger includes a second turbine having at least one inlet and an outlet, and a second compressor having an inlet and an outlet. The at least one second turbine inlet is fluidly coupled with a corresponding exhaust manifold. A valve assembly includes an inlet, a first outlet and a second outlet. The valve inlet is fluidly coupled with a corresponding first turbine inlet, the valve first outlet is fluidly coupled with the second turbine inlet, and the valve second outlet is fluidly coupled with at least one intake manifold.

    摘要翻译: 特别适用于内燃机的排气再循环系统设置有多个燃烧气缸,至少一个排气歧管和至少一个进气歧管。 每个排气歧管与多个燃烧气缸联接,并且每个进气歧管与多个燃烧气缸联接。 第一涡轮增压器包括具有至少一个入口和出口的第一涡轮机和具有入口和出口的第一压缩机。 所述至少一个第一涡轮机入口与相应的排气歧管流体联接。 第二涡轮增压器包括具有至少一个入口和出口的第二涡轮机和具有入口和出口的第二压缩机。 至少一个第二涡轮机入口与相应的排气歧管流体连接。 阀组件包括入口,第一出口和第二出口。 阀入口与对应的第一涡轮机入口流体联接,阀第一出口与第二涡轮机入口流体联接,阀第二出口与至少一个进气歧管流体连接。

    Two turbocharger engine emission control system
    7.
    发明授权
    Two turbocharger engine emission control system 有权
    两个涡轮增压器发动机排放控制系统

    公开(公告)号:US06484500B1

    公开(公告)日:2002-11-26

    申请号:US09939968

    申请日:2001-08-27

    IPC分类号: F02B3344

    摘要: An internal combustion engine comprises a first exhaust manifold, a second exhaust manifold, a first turbocharger having a first turbine and a first compressor, and a second turbocharger having a second turbine and a second compressor. A second gas inlet port of the second turbine is connected in fluid communication with a second exhaust manifold to receive at least a portion of second combustion gases. A second gas outlet port of the second turbine and the first exhaust manifold are in fluid communication with a first gas inlet port of the first turbine. A valve is connected in fluid communication with the second exhaust manifold to receive a remainder of exhaust gases not included in the at least a portion of the second combustion gases supplied to the second turbine. The valve is connected in fluid communication with a mixer to deliver at least a portion of the remainder of exhaust gases to the mixer for mixing with compressed air in the mixer.

    摘要翻译: 内燃机包括第一排气歧管,第二排气歧管,具有第一涡轮机和第一压缩机的第一涡轮增压器和具有第二涡轮机和第二压缩机的第二涡轮增压器。 第二涡轮机的第二气体入口与第二排气歧管流体连通地连接以接收至少一部分第二燃烧气体。 第二涡轮机和第一排气歧管的第二气体出口与第一涡轮机的第一气体入口端口流体连通。 阀与第二排气歧管流体连通地连接,以接收不包括在供应到第二涡轮的第二燃烧气体的至少一部分中的余下的废气。 阀与混合器流体连通地连接以将剩余的废气的至少一部分输送到混合器以与混合器中的压缩空气混合。

    Two turbocharger exhaust gas re-circulation system having a first stage variable nozzle turbine
    8.
    发明授权
    Two turbocharger exhaust gas re-circulation system having a first stage variable nozzle turbine 失效
    两个具有第一级可变喷嘴涡轮的涡轮增压器排气再循环系统

    公开(公告)号:US06418721B1

    公开(公告)日:2002-07-16

    申请号:US09755632

    申请日:2001-01-05

    IPC分类号: F02B3344

    摘要: An internal combustion engine, particularly suitable for a motor vehicle, is provided with a plurality of combustion cylinders, at least a first exhaust manifold and a second exhaust manifold and at least one intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders. Each intake manifold is coupled with a plurality of the combustion cylinders. A first turbocharger includes a first turbine having at least one inlet and an outlet, and a first compressor having an inlet and an outlet. The at least one first turbine inlet is fluidly coupled with the first exhaust manifold and includes a controllable, variable intake nozzle. A second turbocharger includes a second turbine having an inlet and an outlet, and a second compressor having an inlet and an outlet. The second turbine inlet is fluidly coupled with the second exhaust manifold. The first compressor outlet is fluidly coupled with the second compressor inlet. The engine has improved performance and efficiency, with an efficient and compact turbocharger arrangement.

    摘要翻译: 特别适用于机动车辆的内燃机设置有多个燃烧缸,至少第一排气歧管和第二排气歧管以及至少一个进气歧管。 每个排气歧管与多个燃烧气缸联接。 每个进气歧管与多个燃烧气缸联接。 第一涡轮增压器包括具有至少一个入口和出口的第一涡轮机和具有入口和出口的第一压缩机。 所述至少一个第一涡轮机入口与所述第一排气歧管流体耦合并且包括可控的可变进气喷嘴。 第二涡轮增压器包括具有入口和出口的第二涡轮机和具有入口和出口的第二压缩机。 第二涡轮机入口与第二排气歧管流体耦合。 第一压缩机出口与第二压缩机入口流体耦合。 发动机具有改进的性能和效率,具有高效紧凑的涡轮增压器装置。

    Twin turbine exhaust gas re-circulation system having a second stage variable nozzle turbine
    9.
    发明授权
    Twin turbine exhaust gas re-circulation system having a second stage variable nozzle turbine 失效
    具有第二级可变喷嘴涡轮机的双涡轮排气再循环系统

    公开(公告)号:US06412279B1

    公开(公告)日:2002-07-02

    申请号:US09742700

    申请日:2000-12-20

    IPC分类号: F02B3344

    摘要: An internal combustion engine, particularly suitable for a motor vehicle, is provided with a plurality of combustion cylinders, at least a first exhaust manifold and a second exhaust manifold and at least one intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders. Each intake manifold is coupled with a plurality of the combustion cylinders. A first turbocharger includes a first turbine having at least one inlet and an outlet, and a first compressor having an inlet and an outlet. The at least one first turbine inlet is fluidly coupled with the first exhaust manifold. A second turbocharger includes a second turbine having an inlet and an outlet, and a second compressor having an inlet and an outlet. The second turbine inlet is fluidly coupled with the second exhaust manifold and includes a controllable, variable intake nozzle. The first compressor outlet is fluidly coupled with the second compressor inlet. The engine has good fuel consumption characteristics and EGR flow rate control.

    摘要翻译: 特别适用于机动车辆的内燃机设置有多个燃烧缸,至少第一排气歧管和第二排气歧管以及至少一个进气歧管。 每个排气歧管与多个燃烧气缸联接。 每个进气歧管与多个燃烧气缸联接。 第一涡轮增压器包括具有至少一个入口和出口的第一涡轮机和具有入口和出口的第一压缩机。 所述至少一个第一涡轮机入口与所述第一排气歧管流体耦合。 第二涡轮增压器包括具有入口和出口的第二涡轮机和具有入口和出口的第二压缩机。 第二涡轮机入口与第二排气歧管流体连接并且包括可控的可变进气喷嘴。 第一压缩机出口与第二压缩机入口流体耦合。 发动机具有良好的燃油消耗特性和EGR流量控制。

    Exhaust gas recirculation system
    10.
    发明授权
    Exhaust gas recirculation system 有权
    废气再循环系统

    公开(公告)号:US06230695B1

    公开(公告)日:2001-05-15

    申请号:US09274140

    申请日:1999-03-22

    IPC分类号: F02B3344

    摘要: Past exhaust emission control systems fail to utilize exhaust gas recirculation during all operating parameters of an engine. The present exhaust gas recirculation system reduces the emissions emitted from an engine during all operating parameters of the engine. The engine has a cylinder, a rotatable crankshaft and a turbocharger defining a compressor section compressing a flow of intake air to a first preestablished pressure and being driven by a flow of exhaust gas having a first preestablished pressure. The exhaust gas recirculation system is comprised of a portion of the flow of exhaust gas being recirculated back to the cylinder and forming a flow of exhaust gas recirculation. The flow of exhaust gas recirculation is cooled. The flow of exhaust gas recirculation is mixed with exhaust gas and compressed to a second preestablished pressure by the positive displacement pump. The second preestablished pressure of the flow of exhaust gas recirculation is at least as great as the first preestablished pressure of the intake air. And, a quantity of the flow of exhaust gas recirculation is controlled by a mixing valve. The mixing valve has an open position in which a portion of the flow of intake air is mixed with the flow of exhaust gas recirculation and a closed position in which the flow of intake air is blocked.

    摘要翻译: 过去的废气排放控制系统在发动机的所有运行参数期间都不能利用废气再循环。 本发明的废气再循环系统在发动机的所有操作参数期间减少了从发动机排放的排放。 发动机具有气缸,可旋转曲轴和涡轮增压器,其限定将进气流压缩至第一预先建立的压力并由具有第一预定压力的排气流驱动的压缩机部分。 废气再循环系统包括废气流的一部分被再循环回到气缸并形成废气再循环流。 废气再循环的流量被冷却。 废气再循环的流动与废气混合,并通过正排量泵压缩至第二预先建立的压力。 废气再循环流动的第二个预先建立的压力至少与进气的第一预先建立的压力一样大。 并且,排气再循环的流量由混合阀控制。 混合阀具有打开位置,其中一部分进气流与废气再循环流和封闭位置混合,在该位置中进气的流动被阻挡。