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    Injection spray pattern for direct injection spark ignition engines
    1.
    发明授权
    Injection spray pattern for direct injection spark ignition engines 有权
    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

    Applicant: Jianwen Yi ,  Huiyu Fu ,  Xiangdong Chen ,  Zhiyu Han

    Inventor： Jianwen Yi ,  Huiyu Fu ,  Xiangdong Chen ,  Zhiyu Han

    IPC: F02B1/00 ,  F02B5/00

    CPC classification number: F02M69/045 ,  F02B17/005 ,  F02M61/1806 ,  Y02T10/128

    Abstract: 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.

    Abstract translation: 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

    Direct injection spark ignition engine
    3.
    发明授权
    Direct injection spark ignition engine 失效
    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

    Applicant: Nizar Trigui ,  Jianwen Yi ,  Zhiyu Han

    Inventor： Nizar Trigui ,  Jianwen Yi ,  Zhiyu Han

    IPC: F02B2310

    CPC classification number: F02B23/101 ,  F02B2075/125 ,  Y02T10/123 ,  Y02T10/125

    Abstract: 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.

    Abstract translation: 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。

    Combustion chamber for direct-injected spark-ignited engines with swirl airflows
    4.
    发明授权
    Combustion chamber for direct-injected spark-ignited engines with swirl airflows 失效
    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

    Applicant: Jialin Yang ,  Jianwen Yi ,  Zhiyu Han

    Inventor： Jialin Yang ,  Jianwen Yi ,  Zhiyu Han

    IPC: F02F326

    CPC classification number: F02B23/104 ,  F02B17/005 ,  F02B2023/108 ,  F02B2031/006 ,  F02B2075/125 ,  F02B2275/48 ,  F02F1/4214 ,  F02F3/26 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

    Abstract: 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.

    Abstract translation: 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。

    Combustion chamber for DISI engines with exhaust side piston bowl
    9.
    发明授权
    Combustion chamber for DISI engines with exhaust side piston bowl 失效
    具有排气侧活塞碗的DISI发动机燃烧室

    公开(公告)号：US06269790B1

    公开(公告)日：2001-08-07

    申请号：US09434347

    申请日：1999-11-05

    Applicant: Jianwen Yi ,  Jialin Yang ,  Richard Walter Anderson

    Inventor： Jianwen Yi ,  Jialin Yang ,  Richard Walter Anderson

    IPC: F02B302

    CPC classification number: F02B23/104 ,  F02B2023/106 ,  F02B2275/48 ,  Y02T10/125

    Abstract: A stratified-charge combustion system design for direct-injection spark-ignited engines with the piston bowl in the exhaust-valve side. The air flow from the inlet valve provides a normal tumble in cylinder air flow. The fuel injector is positioned on the intake-valve side of the combustion cylinder and forms a charge stratification in the combustion chamber. With the piston bowl on the exhaust-valve side, the distance for spray penetration of the fuel from the injector is extended. The rate of fuel spray penetration in the combustion chamber is reduced by counter air flow against the fuel spray. The air-fuel mixture is moved upwardly to the area of the spark plug by the tumble air flow for ignition. The invention provides less piston bowl wall wetting which results in less soot formation and less emissions of undesirable hydrocarbons.

    Abstract translation: 用于直喷式火花点火发动机的分层充气燃烧系统设计，排气阀侧的活塞碗。 来自进气阀的气流在气缸气流中提供正常的翻转。 燃料喷射器位于燃烧筒的进气阀侧，并且在燃烧室中形成进料分层。 在排气阀侧的活塞碗上，燃料喷射器喷射穿透的距离延长。 在燃烧室中的燃料喷雾渗透速率通过抵靠燃料喷雾的反向气流而减小。 空气燃料混合物通过用于点火的翻转空气流向上移动到火花塞的区域。 本发明提供较少的活塞碗壁润湿，其导致较少的烟灰形成和较少的不需要的烃的排放。

    Direct injection spark ignition engine
    10.
    发明授权
    Direct injection spark ignition engine 失效
    直喷式点火引擎

    公开(公告)号：US5941207A

    公开(公告)日：1999-08-24

    申请号：US925131

    申请日：1997-09-08

    Applicant: Richard Walter Anderson ,  Jianwen Yi ,  Jialin Yang

    Inventor： Richard Walter Anderson ,  Jianwen Yi ,  Jialin Yang

    IPC: F02B17/00 ,  F02B23/10 ,  F02B75/12 ,  F02D41/02 ,  F02D41/34 ,  F02M61/14 ,  F02M61/18

    CPC classification number: F02B17/005 ,  F02B2075/125 ,  F02B23/101 ,  Y02T10/12 ,  Y02T10/123

    Abstract: A stratified charge is formed in a direct injection engine by injecting fuel at a predetermined velocity, a predetermined droplet size, and forming the injected fuel with a hollow cone having a predetermined initial cone angle. The injected fuel thereby shallowly penetrates the combustion chamber so as to float therein to reduce wall-wetting and subsequent soot formation. A substantially flat top piston forms the injected fuel into a ball-shaped kernel during a compression stroke of the engine. The ball-shaped kernel remains substantially unmixed with the inducted air, thereby producing the stratified charge. The continued motion of the piston causes the ball-shaped kernel to move toward the spark plug for ignition.

    Abstract translation: 在直接喷射发动机中通过以预定速度喷射燃料，预定的液滴尺寸，并用具有预定的初始锥角的中空圆锥形成喷射的燃料，形成分层的电荷。 喷射的燃料因此浅地穿透燃烧室以便在其中漂浮以减少壁湿润和随后的烟灰形成。 在发动机的压缩冲程期间，基本平坦的顶部活塞将喷射的燃料形成为球形的内核。 球形内核基本上与引入的空气不混合，从而产生分层电荷。 活塞的持续运动导致球形内核朝着火花塞移动以点燃。

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