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31. 发明授权

US07017561B1 Control strategy for expanding diesel HCCI combustion range by lowering intake manifold temperature 有权
标题翻译：通过降低进气歧管温度来扩大柴油HCCI燃烧范围的控制策略
公开(公告)号：US07017561B1
公开(公告)日：2006-03-28
申请号：US11072549
申请日：2005-03-03
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F02B47/08
CPC分类号： F02B47/08 , F02B1/12 , F02M26/05 , F02M26/24 , F02M26/39 , F02M26/44 , Y02T10/121
摘要： An engine (10) utilizes “regular EGR cooling” when operating in HCCI mode at loads within a low load range (56, 58, 60) and “enhanced EGR cooling” that allows the engine to continue to operate in HCCI mode when engine load increases beyond loads in the low load range (64, 66, 68). When engine load increases further to a point where it enters a high load range, the combustion mode changes over to conventional diesel combustion, and exhaust gas recirculation reverts to “regular EGR cooling” (70, 72, 74).
摘要翻译：发动机（10）在低负载范围（56,58,60）的负载下以HCCI模式工作时使用“常规EGR冷却”，并且当发动机负载时允许发动机继续在HCCI模式下工作的“增强型EGR冷却” 在低负载范围内增加超过负载（64,66,68）。当发动机负荷进一步升高至进入高负载范围时，燃烧模式转变为常规柴油燃烧，排气再循环回复到“常规EGR冷却”（70,72,74）。

32. 发明申请

US20060060172A1 VENTURI MIXING SYSTEM FOR EXHAUST GAS RECIRCULATION (EGR) 有权
标题翻译： VENTURI混合气体再循环系统（EGR）
公开(公告)号：US20060060172A1
公开(公告)日：2006-03-23
申请号：US10945618
申请日：2004-09-21
申请人： Zhengbai Liu , Laura Ricart-Ugaz , Timothy Chang , Yuanxian Zhu
发明人： Zhengbai Liu , Laura Ricart-Ugaz , Timothy Chang , Yuanxian Zhu
IPC分类号： F02M25/07
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。

33. 发明授权

US06935301B2 Combustion chamber 失效
标题翻译：燃烧室
公开(公告)号：US06935301B2
公开(公告)日：2005-08-30
申请号：US10725091
申请日：2003-12-01
申请人： Zhengbai Liu
发明人： Zhengbai Liu
IPC分类号： F02B3/06 , F02B23/06 , F02F3/26
CPC分类号： F02F3/26 , F02B3/06 , F02B23/0672 , F02B23/0693 , F02B2275/14 , Y02T10/123 , Y02T10/125
摘要： A combustion chamber assembly for use in a diesel engine, includes a combustion chamber having a lower portion and an upper portion and being defined in a crown of a piston, the combustion chamber lower portion being formed of a plurality of spherical and annular surfaces having smooth annular transitions; and the combustion chamber upper portion having at least one step defining a flat surface and defining a transition between the lower portion and the crown. A piston incorporating the combustion chamber assembly and a method for forming the combustion chamber assembly are further included.
摘要翻译：一种用于柴油发动机的燃烧室组件，包括燃烧室，该燃烧室具有下部和上部并被限定在活塞的顶部中，燃烧室下部由多个球形和环形表面形成，该表面具有光滑环形过渡; 并且所述燃烧室上部具有限定平坦表面并且限定所述下部和所述冠部之间的过渡的至少一个台阶。还包括并入燃烧室组件的活塞和用于形成燃烧室组件的方法。

34. 发明授权

US06868817B2 Simplified combustion chamber 失效
标题翻译：简化燃烧室
公开(公告)号：US06868817B2
公开(公告)日：2005-03-22
申请号：US10318499
申请日：2002-12-13
申请人： Zhengbai Liu
发明人： Zhengbai Liu
IPC分类号： F02B3/06 , F02B23/06 , F02F3/26 , F02F3/00
CPC分类号： F02F3/26 , F02B3/06 , F02B23/0672 , F02B2275/14 , Y02T10/125
摘要： A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber defined intersecting a crown of the piston, the combustion chamber being defined by three curved surfaces, adjacent surfaces having direct smooth junctures.A piston and a method of forming a combustion chamber are further included.
摘要翻译：用于柴油发动机的活塞的燃烧室组件包括与活塞冠部相交的燃烧室，燃烧室由三个弯曲表面限定，相邻表面具有直接平滑的接合点。一种活塞和一种形成还包括燃烧室。

35. 发明授权

US06637402B2 Piston having combustion chamber defined in the crown 失效
标题翻译：活塞内有燃烧室，定义在表冠上
公开(公告)号：US06637402B2
公开(公告)日：2003-10-28
申请号：US09922972
申请日：2001-08-06
申请人： Zhengbai Liu
发明人： Zhengbai Liu
IPC分类号： F02F326
CPC分类号： F02B23/0672 , F02B3/06 , Y02T10/125
摘要： A combustion chamber assembly (and a piston having the combustion chamber assembly) for use in a diesel engine, includes a combustion chamber being defined in a crown of a piston, the combustion chamber having a central axis, and having a center portion being raised above a bottom plane of the combustion chamber. The center portion of the combustion chamber is defined in part by a portion of a sphere, the sphere having a radius, the origin of the radius lying on the combustion chamber central axis. The combustion chamber has a plurality of curved surfaces having smooth tangential transitions between adjacent smooth surfaces, the smooth surfaces including the spherical center portion in combination with a plurality of annular surfaces. A method of forming a combustion chamber is also included.
摘要翻译：一种用于柴油发动机的燃烧室组件（以及具有燃烧室组件的活塞）包括一个限定在活塞顶部的燃烧室，该燃烧室具有一个中心轴线，并具有一个中心部分在上方升高燃烧室的底面。燃烧室的中心部分部分地由球体的一部分限定，球体具有半径，半径的原点位于燃烧室中心轴线上。燃烧室具有在相邻的光滑表面之间具有平滑切向过渡的多个弯曲表面，光滑表面包括与多个环形表面组合的球形中心部分。还包括形成燃烧室的方法。

36. 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。

37. 发明授权

US07631489B2 Strategy for selectively bypassing a DPF in a hybrid HCCI combustion engine 有权
标题翻译：选择性地绕过混合HCCI内燃机中的DPF的策略
公开(公告)号：US07631489B2
公开(公告)日：2009-12-15
申请号：US11062358
申请日：2005-02-22
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F01N3/00
CPC分类号： F02D41/3035 , F01N3/031 , F02B37/00 , F02D41/3076 , Y02T10/128 , Y02T10/20
摘要： In a conventional diesel combustion mode, one or more cylinders (12) of an engine (10) is or are fueled to cause conventional diesel combustion in each such cylinder. The resulting exhaust gas is treated by a diesel particulate filter (36) in an exhaust system (34) before exiting the exhaust system. In an alternative diesel combustion mode, such as HCCI, one or more cylinders of the engine are fueled to create in each such cylinder an in-cylinder fuel-air charge that ignites by auto-ignition as the charge is increasingly compressed. Also a bypass valve (38) is opened so that the resulting exhaust gas bypasses the DPF as the exhaust gas passes through the exhaust system.
摘要翻译：在常规的柴油燃烧模式中，发动机（10）的一个或多个气缸（12）被燃料化以在每个这样的气缸中引起常规的柴油燃烧。所得废气在离开排气系统之前由排气系统（34）中的柴油机微粒过滤器（36）处理。在诸如HCCI的替代柴油燃烧模式中，发动机的一个或多个气缸被燃料以在每个这样的气缸中产生随着电荷越来越多地被压缩而通过自动点火点燃的缸内燃料空气装料。此外，旁通阀（38）打开，使得当废气通过排气系统时，所产生的废气绕过DPF。

38. 发明授权

US07461627B2 Hybrid combustion in a diesel engine 有权
标题翻译：柴油发动机混合燃烧
公开(公告)号：US07461627B2
公开(公告)日：2008-12-09
申请号：US11380537
申请日：2006-04-27
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F02B17/00 , F02B5/00 , F02B33/44 , F02M25/07 , F02D17/02
CPC分类号： F02B29/0412 , F02B1/12 , F02B3/06 , F02B9/04 , F02B37/007 , F02D23/02 , F02D41/0057 , F02D41/0065 , F02D41/0082 , F02D41/3035 , F02M26/08 , F02M26/24 , F02M26/38 , F02M26/42 , Y02T10/128 , Y02T10/144 , Y02T10/146 , Y02T10/47
摘要： A compression ignition engine (10) has a control system (40), one or more combustion chambers (12), and fuel injectors (42, 44) for injecting fuel into the combustion chambers. The control system controls fueling using a result of the processing of engine speed and engine load to select a particular domain for engine operation (HCCI, HCCI+CD, or CD, —FIG. 1). When the processing selects HCCI, the engine is fueled to cause alternative diesel combustion (such as HCCI) in all combustion chambers. When the processing selects CD, all combustion chambers are fueled for conventional diesel combustion. When the processing selects HCCI+CD, a first group of combustion chambers are fueled for HCCI combustion and a second group for CD combustion. Each group (G1, G2) has its own EGR valve (34, 38) and turbocharger (22, 24).
摘要翻译：压缩点火发动机（10）具有控制系统（40），一个或多个燃烧室（12）和用于将燃料喷射到燃烧室中的燃料喷射器（42,44）。控制系统使用处理发动机转速和发动机负荷的结果控制加油，以选择用于发动机运行的特定领域（HCCI，HCCI + CD或CD，图1）。当处理选择HCCI时，发动机被燃料以在所有燃烧室中引起备用柴油燃烧（例如HCCI）。当处理选择CD时，所有燃烧室被燃料用于常规的柴油燃烧。当处理选择HCCI + CD时，第一组燃烧室用于HCCI燃烧，第二组用于CD燃烧。每组（G1，G2）具有其自己的EGR阀（34,38）和涡轮增压器（22,24）。

39. 发明授权

US07171957B2 Control strategy for expanding diesel HCCI combustion range by lowering intake manifold temperature 有权
标题翻译：通过降低进气歧管温度来扩大柴油HCCI燃烧范围的控制策略
公开(公告)号：US07171957B2
公开(公告)日：2007-02-06
申请号：US11343371
申请日：2006-01-31
申请人： Zhengbai Liu , Puning Wei
发明人： Zhengbai Liu , Puning Wei
IPC分类号： F02M25/07 , F02B47/08
CPC分类号： F02D41/3035 , F02B1/12 , F02B3/06 , F02B29/0406 , F02B47/08 , F02D41/0065 , F02M26/05 , F02M26/24 , F02M26/28 , F02M26/33 , F02M26/38 , Y02T10/128 , Y02T10/47
摘要： An engine (10, 100) utilizes “regular EGR cooling” when operating in HCCI mode within a low load range and “enhanced EGR cooling” that allows the engine to continue to operate in HCCI mode when engine load increases beyond the low load range. When engine load increases to a high load range, the combustion mode changes over to conventional diesel combustion, and exhaust gas recirculation reverts to “regular EGR cooling”. In a first embodiment, cooling is provided by two heat exchangers, one being a regular EGR cooler always used when cooling is needed and the other, an enhancing EGR cooler that is selectively used. In a second embodiment, cooling is also provided by two heat exchangers, one being an EGR cooler through which liquid coolant always flows when cooling is needed, and the other being a radiator used selectively to cool the liquid coolant before it enters the EGR cooler.
摘要翻译：发动机（10,100）在低负载范围内以HCCI模式运行时使用“常规EGR冷却”，并且当发动机负载增加到低负载范围时，允许发动机继续在HCCI模式下运行的“增强型EGR冷却”。当发动机负载增加到高负载范围时，燃烧模式转变为常规柴油燃烧，排气再循环回复到“常规EGR冷却”。在第一实施例中，冷却由两个热交换器提供，一个是在需要冷却时总是使用的常规EGR冷却器，另一个是选择性地使用的增强型EGR冷却器。在第二实施例中，冷却也由两个热交换器提供，一个是EGR冷却器，当需要冷却时，液体冷却剂通过该冷却器始终流动，另一个是选择性地冷却液体冷却剂进入EGR冷却器之前的散热器。

40. 发明授权

US07140357B2 Vortex mixing system for exhaust gas recirculation (EGR) 有权
标题翻译：废气再循环涡轮混合系统（EGR）
公开(公告)号：US07140357B2
公开(公告)日：2006-11-28
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.
摘要翻译：涡流混合系统将进气与用于内燃机中废气再循环（EGR）的废气混合。涡流混合系统可以具有连接到进气管道，供应管道和EGR管道的涡流混合装置。涡流混合装置可以具有围绕混合管道设置的增压室，该混合管道连接到进气管道和供应管道。增压室连接到一个或多个交叉管道和EGR管道。交叉管道跨越由混合管道形成的混合室。交叉管道在进气中产生一个或多个涡流。每个十字管道具有一个或多个出口。交叉管道将废气通过出口引导到涡流中。废气与涡流中的进气混合。

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