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1. 发明授权

US06725828B1 Vortex-induced stratification combustion for direct injection spark ignition engines 有权
标题翻译：直接喷射火花点火发动机的涡旋诱导分层燃烧
公开(公告)号：US06725828B1
公开(公告)日：2004-04-27
申请号：US10462282
申请日：2003-06-17
申请人： Zhiyu Han , Claudia Olivia Iyer , Ruben Humberto Munoz Pascua , Brad Alan VanDerWege , Jianwen James Yi
发明人： Zhiyu Han , Claudia Olivia Iyer , Ruben Humberto Munoz Pascua , Brad Alan VanDerWege , Jianwen James Yi
IPC分类号： F02B1700
CPC分类号： F02B17/005 , F02B23/101 , F02B31/085 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02F1/4214 , F02M51/06 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A system and method for controlling combustion in a direct injection spark ignition internal combustion engine inject fuel directly into a combustion chamber in a wide-angle, hollow-cone spray to form a vortex that draws fuel vapor out of the spray to form a combustible fuel-air mixture at a spark location outside the hollow-cone spray. Various piston combustion bowl configurations further enhance the stability of the vortex and reduce fuel impingement on the piston surface while providing a desired compression ratio. Cylinder airflow is controlled to produce substantial swirl flow resulting in a more compact fuel cloud around the spark location to reduce over-mixing and improve robustness to cycle-to-cycle variation in the mixing process.
摘要翻译：用于控制直接喷射火花点火内燃机中的燃烧的系统和方法将燃料直接喷射到广角中空锥形喷雾器中的燃烧室中，以形成将燃料蒸气从喷雾中吸出以形成可燃燃料在中空锥体喷雾之外的火花位置处的空气混合物。各种活塞燃烧碗形结构进一步增强了涡流的稳定性并减少了活塞表面上的燃料冲击，同时提供了所需的压缩比。控制气缸气流以产生大量的旋流，从而在火花位置周围产生更紧凑的燃料云，以减少过混合并提高混合过程中循环到循环变化的鲁棒性。

2. 发明授权

US06286477B1 Combustion chamber for direct-injected spark-ignited engines with swirl airflows 失效
标题翻译：用于直喷式火花点火发动机的涡流气流燃烧室
公开(公告)号：US06286477B1
公开(公告)日：2001-09-11
申请号：US09469050
申请日：1999-12-21
申请人： Jialin Yang , Jianwen Yi , Zhiyu Han
发明人： Jialin Yang , Jianwen Yi , Zhiyu Han
IPC分类号： F02F326
CPC分类号： F02B23/104 , F02B17/005 , F02B2023/108 , F02B2031/006 , F02B2075/125 , F02B2275/48 , F02F1/4214 , F02F3/26 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A stratified-charge combustion chamber system for a direct-injection spark-ignited (DISI) engine with a swirl-type airflow. An asymmetrical combustion bowl design in the top wall of the piston provides a wide area on the downstream side of the swirl flow and a harbor area upstream of the swirl flow in a direction further away from the fuel injector. The edge of the combustion bowl is comprised of smoothly-connected curves with large radii, except for the curve connecting the wide and harbor areas, which has a small radius. The vertical cross-sections of the bowl also have large radii in order to guide the air-fuel mixture and rebounded fuel droplets toward the spark plug and prevent dead regions for the fuel. The precise position of the spark plug in the harbor area can be adjusted as desired within a certain range to improve ignitability of the air-fuel mixture.
摘要翻译：用于具有涡流式气流的直喷式点火（DISI）发动机的分层充气燃烧室系统。在活塞的顶壁中的不对称燃烧碗设计在涡流的下游侧和在远离燃料喷射器的方向上的漩涡流的上游的港口区域提供了广泛的区域。燃烧碗的边缘由具有大半径的平滑连接的曲线组成，除了连接具有小半径的宽和港区域的曲线之外。碗的垂直横截面也具有大的半径，以引导空气燃料混合物和反弹的燃料液滴朝向火花塞并且防止燃料的死区。可以根据需要在一定范围内调整火花塞在港口区域的精确位置，以改善空气 - 燃料混合物的点火性。

3. 发明授权

US06910455B2 Spark ignition engine with shallow bowl-in-piston geometry 有权
标题翻译：具有浅碗活塞几何形状的火花点火发动机
公开(公告)号：US06910455B2
公开(公告)日：2005-06-28
申请号：US10063034
申请日：2002-03-13
申请人： Jeffry Gerard Sczepanski , Jianwen Yi , Nizar Trigui , Zhiyu Han
发明人： Jeffry Gerard Sczepanski , Jianwen Yi , Nizar Trigui , Zhiyu Han
IPC分类号： F02B23/10 , F02B75/12 , F02F1/24 , F02F3/26 , F02F3/21
CPC分类号： F02F3/26 , F02B23/104 , F02B2075/125 , F02F2001/245 , Y02T10/123 , Y02T10/125
摘要： A piston for use with a direct injection, spark ignition engine includes a piston body with a top face having a piston deck and a shallow bowl. Furthermore, the shallow bowl has a maximum depth that is in the range of one to five millimeters below the piston deck.
摘要翻译：用于直接喷射的活塞，火花点火发动机包括具有顶面的活塞体，活塞主体具有活塞甲板和浅碗。此外，浅碗的最大深度在活塞甲板下方一至五毫米的范围内。

4. 发明授权

US06863058B2 System and method for reducing NOx emissions during transient conditions in a diesel fueled vehicle 有权
标题翻译：在柴油燃料车辆的瞬态条件下减少NOx排放的系统和方法
公开(公告)号：US06863058B2
公开(公告)日：2005-03-08
申请号：US10248633
申请日：2003-02-03
申请人： Eric Matthew Kurtz , Zhiyu Han , Richard Eugene Baker
发明人： Eric Matthew Kurtz , Zhiyu Han , Richard Eugene Baker
IPC分类号： F02B1/12 , F02D41/02 , F02D41/40 , F02M25/07 , F02D41/30 , F02B3/00
CPC分类号： F02D41/0275 , F02B1/12 , F02D41/405 , F02M26/05 , F02M26/06 , F02M26/07 , F02M26/24 , Y02T10/44
摘要： The present invention is a dual-stage fuel injection strategy for compression ignition engines in which 15-40% of the fuel is injected into the combustion chamber no later than about −20 to −30 CA ATDC and as early as IVC. The rest of the fuel is then injected in one or more fuel pulses, none of which start before about −20 to −30 CA ATDC. The fuel injected early in the compression stroke forms a lean mixture that burns with low soot and low NOx emissions. The combustion of that fuel serves to increase in-cylinder temperature such that the ignition delay of subsequent fuel injection pulses is short. This mode is utilized when it is predicted that a NOx spike is imminent. Various other alternative methods for reducing NOx spikes are also disclosed such as specialized EGR systems that can provide EGR with low manifold vacuum.
摘要翻译：本发明是一种用于压缩点火发动机的双级燃料喷射策略，其中15-40％的燃料不晚于约-20至-30CA ATDC并且早于IVC被注入到燃烧室中。然后将剩余的燃料注入一个或多个燃料脉冲中，其中没有一个在大约-20至-30℃之间开始。在压缩冲程早期喷射的燃料形成燃烧的低烟炱和低NOx排放的稀混合物。该燃料的燃烧用于增加缸内温度，使得随后的燃料喷射脉冲的点火延迟较短。当预测NOx尖峰即将到来时，利用该模式。还公开了用于减少NOx尖峰的各种其它替代方法，例如可以提供低歧管真空的EGR的专用EGR系统。

5. 发明授权

US06378488B1 Direct injection spark ignition engine 失效
标题翻译：直喷式点火引擎
公开(公告)号：US06378488B1
公开(公告)日：2002-04-30
申请号：US09649930
申请日：2000-08-29
申请人： Nizar Trigui , Jianwen Yi , Zhiyu Han
发明人： Nizar Trigui , Jianwen Yi , Zhiyu Han
IPC分类号： F02B2310
CPC分类号： F02B23/101 , F02B2075/125 , Y02T10/123 , Y02T10/125
摘要： A method is presented for improving performance of direct injection spark ignition internal combustion engines at high load conditions by increasing the degree of homogeneity of the air-fuel mixture during the intake stroke of the engine. The improved performance is achieved by adding a deflector designed to reduce intake air impinging upon the fuel spray and deflecting it to the intake side of the combustion chamber, thus facilitating better fuel circulation throughout the combustion chamber. This method improves engine performance at high load engine operating conditions.
摘要翻译：提出了一种通过在发动机的进气冲程期间增加空气 - 燃料混合物的均匀度来提高直接喷射火花点火内燃机在高负载条件下的性能的方法。改进的性能是通过增加一个设计用于减少入射空气撞击到燃料喷雾并将其偏转到燃烧室的进气侧的偏转器来实现的，从而有助于在整个燃烧室中更好的燃料循环。该方法在高负荷发动机运行条件下提高发动机的性能。

6. 发明授权

US07104250B1 Injection spray pattern for direct injection spark ignition engines 有权
标题翻译：喷射喷射模式用于直接喷射火花点火发动机
公开(公告)号：US07104250B1
公开(公告)日：2006-09-12
申请号：US11162248
申请日：2005-09-02
申请人： Jianwen Yi , Huiyu Fu , Xiangdong Chen , Zhiyu Han
发明人： Jianwen Yi , Huiyu Fu , Xiangdong Chen , Zhiyu Han
IPC分类号： F02B1/00 , F02B5/00
CPC分类号： F02M69/045 , F02B17/005 , F02M61/1806 , Y02T10/128
摘要： A system and method for controlling combustion in a direct injection spark ignition internal combustion engine inject fuel directly into a combustion chamber through an injector having an ignition jet or group of jets positioned primarily to support stratified charge formation and a mixing jet or group of jets positioned primarily to support homogeneous charge formation. The ignition jet(s) and mixing jet(s) produce discernibly different yet well connected fuel clouds within the cylinder to provide stable combustion and reduce cylinder wall wetting by appropriate selection of the axial/longitudinal angles and radial/circumferential angles of the ignition and mixing jets.
摘要翻译：用于控制直接喷射火花点火内燃机中的燃烧的系统和方法通过具有主要用于支撑分层电荷形成的点火射流或射流组的喷射器将燃料直接喷射到燃烧室中，喷射器或喷射器组被定位主要用于支持均匀电荷形成。点火喷气和混合射流在气缸内产生明显不同但良好连接的燃料云，以通过适当选择点火的轴向/纵向角度和径向/圆周角度来提供稳定的燃烧并减少气缸壁润湿，混合喷气机

7. 发明授权

US06397813B1 Method and apparatus for inducing swirl in an engine cylinder by controlling engine valves 有权
标题翻译：通过控制发动机气门在发动机气缸中引起涡流的方法和装置
公开(公告)号：US06397813B1
公开(公告)日：2002-06-04
申请号：US09561460
申请日：2000-04-28
申请人： Zhiyu Han , Jialin Yang , Richard Walter Anderson
发明人： Zhiyu Han , Jialin Yang , Richard Walter Anderson
IPC分类号： F02B3100
CPC分类号： F02D13/0207 , F02D13/0257 , F02D13/0261 , F02D21/08 , F02M26/01 , Y02T10/18
摘要： Swirl motion of gases in a combustion chamber of an engine is affected by changing the timing of opening and closing one of two intake and/or exhaust valves. By retarding the opening of one intake valve relative to a second intake valve, swirl motion can be enhanced for the intake gases in the engine cylinder. Similarly, by retarding the opening of one of two exhaust valves, swirl motion can be induced for the residual gases. The system may include electric or hydraulic actuators or mechanically controlled valves. A variable valve lift system can also be used to control swirl motion in a combustion chamber.
摘要翻译：发动机燃烧室内的气体的旋转运动通过改变打开和关闭两个进气门和/或排气门中的一个的时间而受到影响。通过相对于第二进气门延迟一个进气门的打开，可以提高发动机气缸中的进气的旋转运动。类似地，通过延迟两个排气门中的一个的打开，可以为残余气体引起漩涡运动。该系统可以包括电动或液压致动器或机械控制阀。可变气门升程系统也可用于控制燃烧室中的涡流运动。

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