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1. 发明申请

US20110100343A1 EMISSION CONTROL SYSTEM FOR AN ENGINE HAVING A TWO-STAGE TURBOCHARGER 有权
标题翻译：具有两级涡轮增压器的发动机排放控制系统
公开(公告)号：US20110100343A1
公开(公告)日：2011-05-05
申请号：US12612384
申请日：2009-11-04
申请人： Zhengbai Liu , Ning Lei , Jincai Zheng , Robert L. Rowells
发明人： Zhengbai Liu , Ning Lei , Jincai Zheng , Robert L. Rowells
IPC分类号： F02M25/07 , F02B47/08 , F02B33/44 , F02D23/00
CPC分类号： F02D41/0065 , F02B29/0412 , F02B37/004 , F02B37/013 , F02D9/02 , F02D41/0007 , F02M26/08 , F02M26/15 , F02M26/24 , F02M26/38 , Y02T10/144 , Y02T10/146 , Y02T10/47
摘要： While an engine (10, 10A, 10B, 10C, 10D, 10E) is operating, a control system (22) processes data for certain engine operating parameters to calculate a quantity of exhaust gas needed to satisfy an exhaust gas recirculation requirement. If a primary EGR control loop (34) alone can satisfy the calculated quantity of exhaust gas, a secondary EGR control loop (36) is closed while the primary EGR control loop is controlled to satisfy the calculated quantity. When the processing determines that the primary EGR control loop alone cannot satisfy the calculated quantity, the secondary EGR control loop is open concurrently with the primary EGR control loop and both the primary EGR loop and the secondary EGR loop are controlled to cause the combined flow of exhaust gas through the primary EGR control loop and flow of exhaust gas through the secondary EGR control loop to satisfy the calculated quantity.
摘要翻译：当发动机（10,10A，10B，10C，10D，10E）运行时，控制系统（22）处理某些发动机运行参数的数据，以计算满足废气再循环要求所需的废气量。如果主EGR控制回路（34）单独能够满足计算出的废气量，则在控制主EGR控制回路以满足计算量的情况下关闭二次EGR控制回路（36）。当处理确定单独的EGR控制回路不能满足计算量时，二次EGR控制回路与主EGR控制回路同时打开，并且主EGR回路和二次EGR回路都被控制以使得废气通过主EGR控制回路和废气通过次级EGR控制回路以满足计算量。

2. 发明授权

US08596252B2 Emission control system for an engine having a two-stage turbocharger 有权
标题翻译：具有两级涡轮增压器的发动机排放控制系统
公开(公告)号：US08596252B2
公开(公告)日：2013-12-03
申请号：US12612384
申请日：2009-11-04
申请人： Zhengbai Liu , Ning Lei , Jincai Zheng , Robert L. Rowells
发明人： Zhengbai Liu , Ning Lei , Jincai Zheng , Robert L. Rowells
IPC分类号： F02B33/44 , F02D23/00
CPC分类号： F02D41/0065 , F02B29/0412 , F02B37/004 , F02B37/013 , F02D9/02 , F02D41/0007 , F02M26/08 , F02M26/15 , F02M26/24 , F02M26/38 , Y02T10/144 , Y02T10/146 , Y02T10/47
摘要： While an engine (10, 10A, 10B, 10C, 10D, 10E) is operating, a control system (22) processes data for certain engine operating parameters to calculate a quantity of exhaust gas needed to satisfy an exhaust gas recirculation requirement. If a primary EGR control loop (34) alone can satisfy the calculated quantity of exhaust gas, a secondary EGR control loop (36) is closed while the primary EGR control loop is controlled to satisfy the calculated quantity. When the processing determines that the primary EGR control loop alone cannot satisfy the calculated quantity, the secondary EGR control loop is open concurrently with the primary EGR control loop and both the primary EGR loop and the secondary EGR loop are controlled to cause the combined flow of exhaust gas through the primary EGR control loop and flow of exhaust gas through the secondary EGR control loop to satisfy the calculated quantity.
摘要翻译：当发动机（10,10A，10B，10C，10D，10E）运行时，控制系统（22）处理某些发动机运行参数的数据，以计算满足废气再循环要求所需的废气量。如果主EGR控制回路（34）单独能够满足计算出的废气量，则在控制主EGR控制回路以满足计算量的情况下关闭二次EGR控制回路（36）。当处理确定单独的EGR控制回路不能满足计算量时，二次EGR控制回路与主EGR控制回路同时打开，并且主EGR回路和二次EGR回路都被控制以使得废气通过主EGR控制回路和废气通过次级EGR控制回路以满足计算量。

3. 发明申请

US20100318276A1 Control Strategy For A Diesel Engine During Lean-Rich Modulation 审中-公开
标题翻译：精益调制下柴油发动机的控制策略
公开(公告)号：US20100318276A1
公开(公告)日：2010-12-16
申请号：US12481661
申请日：2009-06-10
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F02D41/30
CPC分类号： F02D41/0275 , F02D41/0007 , F02D41/0055 , F02D41/307 , F02D41/3836 , F02D2250/21 , F02M26/05 , F02M26/22
摘要： The control system controls lean-rich modulation of fueling using a set of engine specific fueling parameter maps. One set of maps is a set of lean fueling maps, and another set is a set of rich fueling maps. The two map sets each comprise a fuel injection pressure map, an EGR valve opening map, and a VGT valve opening map, established for the particular diesel engine, with neither form of modulation requiring post injection. The strategy is represented by a flow diagram and is useful in regenerating an NOx adsorber catalyst in the engine exhaust system in a manner that controls torque so that the regeneration process is transparent to the operator of the vehicle, while producing significant fuel savings.
摘要翻译：控制系统使用一组发动机特定的燃料加注参数图来控制富燃料调节。一套地图是一组精益加油地图，另一套地图是一套丰富的加油地图。这两个地图集包括为特定柴油发动机而建立的燃料喷射压力图，EGR阀开度图和VGT阀开度图，既不需要后喷射的调制形式。该策略由流程图表示，并且可用于在发动机排气系统中以控制转矩的方式再生NOx吸附剂催化剂，使得再生过程对车辆的操作者是透明的，同时产生显着的燃料节省。

4. 发明申请

US20060236693A1 ENGINE VALVE SYSTEM AND METHOD 有权
标题翻译：发动机阀门系统及方法
公开(公告)号：US20060236693A1
公开(公告)日：2006-10-26
申请号：US11111324
申请日：2005-04-21
申请人： Puning Wei , Zhengbai Liu
发明人： Puning Wei , Zhengbai Liu
IPC分类号： F02B33/44 , F02B29/04
CPC分类号： F02B37/013 , F02B37/004 , F02M26/05 , F02M26/06 , F02M26/08 , F02M26/15 , F02M26/23 , F02M26/42 , F02M26/71 , Y02T10/144 , Y10T137/86863 , Y10T137/86895
摘要： An engine system (100) has a valve system (137). An inlet of a turbine (109) is fluidly connected to a first inlet (119) of the valve system (137). An outlet of the turbine (123) is fluidly connected to a second inlet (113) of the valve system (137). An outlet of a compressor (155) is fluidly connected to a first outlet (115) of the valve system (137). An inlet of the compressor (141) is fluidly connected to a second outlet (111) of the valve system (137). An inlet of an exhaust gas recirculation system (133) is fluidly connected to a third outlet (121) of the valve system (137), and an outlet of the exhaust gas recirculation system is fluidly connected to a third inlet (117) of the valve system (137).
摘要翻译：发动机系统（100）具有阀系统（137）。涡轮（109）的入口流体地连接到阀系统（137）的第一入口（119）。涡轮（123）的出口流体地连接到阀系统（137）的第二入口（113）。压缩机（155）的出口流体地连接到阀系统（137）的第一出口（115）。压缩机（141）的入口流体地连接到阀系统（137）的第二出口（111）。排气再循环系统（133）的入口流体地连接到阀系统（137）的第三出口（121），并且废气再循环系统的出口流体连接到第二入口阀系统（137）。

5. 发明授权

US07117843B2 Emission reduction in a diesel engine using an alternative combustion process and a low-pressure EGR loop 有权
公开(公告)号：US07117843B2
公开(公告)日：2006-10-10
申请号：US10960664
申请日：2004-10-07
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F02B3/12 , F02B47/08 , F02B33/44 , F02M25/07 , F01N3/00
CPC分类号： F02D41/3035 , F01N3/021 , F02B1/12 , F02B3/06 , F02B29/0406 , F02B37/00 , F02D41/0007 , F02D41/0057 , F02D41/405 , F02M26/06 , F02M26/15 , F02M26/23 , Y02T10/44
摘要： A compression ignition engine (20) has a control system (26) for processing data, one or more combustion chambers (22), and fuel injectors (24) for injecting fuel into the combustion chambers. The control system controls fueling using a result of the processing of certain data, such as engine speed and engine load.

6. 发明授权

US07032578B2 Venturi mixing system for exhaust gas recirculation (EGR) 有权
标题翻译：用于废气再循环（EGR）的文丘里混合系统
公开(公告)号：US07032578B2
公开(公告)日：2006-04-25
申请号：US10945618
申请日：2004-09-21
申请人： Zhengbai Liu , Laura M. Ricart-Ugaz , Timothy Chang , Yuanxian Zhu
发明人： Zhengbai Liu , Laura M. Ricart-Ugaz , Timothy Chang , Yuanxian Zhu
IPC分类号： F02B47/08
CPC分类号： F02M35/10118 , F02M26/10 , F02M26/19 , F02M35/10157 , F02M35/10222
摘要： A venturi mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The venturi mixing system has a venturi disposed in a mixing conduit. The venturi is connected to an intake air conduit and a supply conduit. The venturi and mixing conduit form an annular cavity connected to an EGR conduit. The venturi forms a mixing chamber. One or more inset conduits connect to the venturi and extend into the mixing chamber. Each inset conduit has an end outlet and one or more side outlets. The venturi generates a lower pressure region in the intake air. The inset conduits generate a turbulence field in the lower pressure region. The inset conduits direct intake air into the turbulence field. The inset conduits direct exhaust gases through the end and side outlets into the turbulence field. The exhaust gases mix with the intake air in the turbulence field to form a combustion gas for combustion of fuel in the engine. The venturi provides the combustion gas to the supply conduit.
摘要翻译：文丘里混合系统将进气和废气混合在内燃机中用于废气再循环（EGR）。文丘里混合系统具有布置在混合管道中的文氏管。文丘里管连接到进气管道和供应管道。文丘里管和混合管道形成连接到EGR管道的环形空腔。文氏管形成混合室。一个或多个插入管道连接到文丘里管并延伸到混合室中。每个插入导管都有一个端口和一个或多个侧插口。文氏管在进气中产生较低的压力区域。插入管道在较低压力区域产生湍流场。插入管道将进气直接引入湍流场。插入管道将废气直接通过端部和侧面出口进入湍流场。废气与湍流场中的进气混合形成用于燃料在发动机中燃烧的燃烧气体。文氏管将燃烧气体提供给供应管道。

7. 发明申请

US20060005805A1 TORQUE CONTROL STRATEGY FOR A DIESEL ENGINE DURING LEAN-RICH MODULATION USING INDEPENDENT FUEL INJECTION MAPS 有权
标题翻译：柴油发动机扭矩控制策略使用独立燃油喷射系统进行精细调制
公开(公告)号：US20060005805A1
公开(公告)日：2006-01-12
申请号：US10889382
申请日：2004-07-12
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F02D41/30 , F02D41/14
CPC分类号： F02D41/0275 , F02D41/0007 , F02D41/0077 , F02D41/307 , F02D2250/21
摘要： An engine (20) and an engine control strategy (FIGS. 2 and 3) for lean-to-rich transitions, such transitions being useful for various purposes, one of which is purging, or regenerating, a NOx adsorber (36) in the engine exhaust system.
摘要翻译：用于贫富过渡的发动机（20）和发动机控制策略（图2和图3），这种转换可用于各种目的，其中之一是净化或再生，其中的NOx吸附器（36）发动机排气系统。

8. 发明授权

US07299771B2 Coolant valve system for internal combustion engine and method 有权
公开(公告)号：US07299771B2
公开(公告)日：2007-11-27
申请号：US11330523
申请日：2006-01-12
申请人： Puning Wei , Zhengbai Liu
发明人： Puning Wei , Zhengbai Liu
IPC分类号： F01P7/14
CPC分类号： F01P3/02 , F01P7/165 , F01P2003/028 , F02M26/24 , F02M26/28 , F02M26/33
摘要： An internal combustion engine (200) includes a coolant pump (212) having a pump outlet (214), and a first exhaust gas recirculation (EGR) cooler (206) fluidly connected to the pump outlet (214). A crankcase (202) is fluidly connected in parallel with the EGR cooler (206) to the pump outlet (214) for receiving coolant therefrom. A cylinder head (204) is fluidly connected to the crankcase (202) for receiving coolant therefrom. A thermostat (232) is fluidly connected between the cylinder head (204) and the coolant pump (212). A valve system (238) has a first selectable position fluidly connecting the flow from the first EGR cooler (206) to the flow in the cylinder head (204), and a second selectable position fluidly connecting the flow from the first EGR cooler (206) to the thermostat (232) in bypassing relation to the cylinder head (204). Each of the first or second position is effected in response to an engine operating parameter.

9. 发明申请

US20060060173A1 Vortex mixing system for exhaust gas recirculation (EGR) 有权
公开(公告)号：US20060060173A1
公开(公告)日：2006-03-23
申请号：US10945636
申请日：2004-09-21
申请人： Puning Wei , Zhengbai Liu
发明人： Puning Wei , Zhengbai Liu
IPC分类号： F02M25/07
CPC分类号： F02B29/0425 , F02M26/19 , F02M26/22 , Y02T10/146
摘要： A vortex mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The vortex mixing system may have a vortex mixing device connected to an intake air conduit, a supply conduit, and an EGR conduit. The vortex mixing device may have a plenum disposed around a mixing conduit, which is connected to the intake air conduit and the supply conduit. The plenum is connected to one or more cross conduits and to the EGR conduit. The cross conduits extend across a mixing chamber formed by the mixing conduit. The cross conduits generate one or more vortices in the intake air. Each cross conduit has one or more outlets. The cross conduits direct the exhaust gases through the outlets into the vortices. The exhaust gases mix with the intake air in the vortices.

10. 发明授权

US06997158B1 Diesel combustion chamber 有权
标题翻译：柴油燃烧室
公开(公告)号：US06997158B1
公开(公告)日：2006-02-14
申请号：US10960662
申请日：2004-10-07
申请人： Zhengbai Liu
发明人： Zhengbai Liu
IPC分类号： F02F3/26
CPC分类号： F02B23/0672 , F02B3/06 , Y02T10/125
摘要： A combustion chamber assembly for use in a diesel engine includes a combustion chamber being defined intersecting a crown of a piston, the combustion chamber being defined by a first curved surface having a reentrancy formed proximate a first curved surface first end and having a post formed proximate a first curved surface second end, a corner being formed at a juncture of the first curved surface second end and the post, adjacent surfaces being direct smooth junctures. A piston and a method of forming a combustion chamber are further included.
摘要翻译：用于柴油发动机的燃烧室组件包括被定义为与活塞冠部相交的燃烧室，所述燃烧室由具有靠近第一弯曲表面第一端形成的重新形成的第一弯曲表面限定，并且具有靠近第一弯曲表面第二端，在第一弯曲表面第二端和柱的接合处形成的角部，相邻的表面是直接平滑的接合处。还包括活塞和形成燃烧室的方法。

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