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    Direct fuel injection engine
    3.
    发明授权
    Direct fuel injection engine 失效
    直接燃油喷射发动机

    公开(公告)号：US06851408B2

    公开(公告)日：2005-02-08

    申请号：US10694013

    申请日：2003-10-28

    申请人： Isamu Hotta ,  Koji Hiraya ,  Masaaki Kubo ,  Akihiko Kakuho

    发明人： Isamu Hotta ,  Koji Hiraya ,  Masaaki Kubo ,  Akihiko Kakuho

    IPC分类号： F02B17/00 ,  F02B23/10 ,  F02D13/02 ,  F02D41/30

    CPC分类号： F02D13/0215 ,  F02B17/005 ,  F02B23/101 ,  F02D41/3029 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/18

    摘要： An direct fuel injection spark ignition internal combustion engine comprises a fuel injection valve arranged at a substantially center part of an upper are of a combustion chamber, and a piston having a crown surface with a cavity shaped so that a center axis of a substantially conical-shaped fuel stream injected from the fuel injection valve is substantially coincident with a center axis of the piston. In a low-load stratified combustion operating region when spark ignition is executed, the fuel injection angle is increased to form a first combustible air-fuel mixture before the fuel stream collides against the cavity of the piston crown surface. In a high-load stratified combustion operating region, the fuel injection angle is reduced to form a second combustible air-fuel mixture after the fuel stream collides against the cavity of the piston crown surface.

    摘要翻译： 直接燃油喷射火花点火内燃机包括配置在燃烧室的上部的大致中心部分处的燃料喷射阀，以及具有冠形表面的活塞，其具有形状为使得基本上圆锥形的中心轴线的中心轴线， 从燃料喷射阀喷射的形状的燃料流基本上与活塞的中心轴线重合。 在执行火花点火时的低负荷分层燃烧操作区域中，在燃料流碰撞活塞冠表面的空腔之前，燃料喷射角度增加以形成第一可燃空气燃料混合物。 在高负荷分层燃烧操作区域中，在燃料流与活塞冠表面的空腔相撞之后，燃料喷射角度减小以形成第二可燃空气 - 燃料混合物。

    Direct fuel injection engine
    4.
    发明申请
    Direct fuel injection engine 失效
    直接燃油喷射发动机

    公开(公告)号：US20050098145A1

    公开(公告)日：2005-05-12

    申请号：US10969339

    申请日：2004-10-21

    申请人： Hirofumi Tsuchida ,  Koji Hiraya ,  Isamu Hotta ,  Taisuke Shiraishi ,  Toshikazu Shiino

    发明人： Hirofumi Tsuchida ,  Koji Hiraya ,  Isamu Hotta ,  Taisuke Shiraishi ,  Toshikazu Shiino

    IPC分类号： F02B17/00 ,  F02B23/10 ,  F02B3/00

    CPC分类号： F02B17/005 ,  F02B23/101 ,  F02B2023/103 ,  Y02T10/125

    摘要： A direct fuel injection engine is provided that an appropriate stratified fuel-air mixture is formed to conduct good stratified combustion over a wide range of loads. The engine has a fuel injection valve that is arranged at an upper surface of the combustion chamber on or near the center reciprocation axis of the piston and oriented such that the injection center axis of the fuel stream injected therefrom is slanted with respect to the center reciprocation axis of the piston. The piston is disposed in the combustion chamber to move along a cylinder center axis. The piston has a top surface having a first outer cavity having a first cavity center axis, and a second inner cavity located in the outer cavity. The second inner cavity has a second cavity center axis offset from the cylinder center axis of the piston in a direction perpendicular to the cylinder center axis.

    摘要翻译： 提供了直接燃料喷射发动机，其形成适当的分层燃料 - 空气混合物以在宽范围的负载下进行良好的分层燃烧。 发动机具有燃料喷射阀，该燃料喷射阀布置在燃烧室的上表面处或活塞的中心往复运动轴线附近，并被定向成使得从其喷射的燃料流的喷射中心轴线相对于中心往复运动倾斜 活塞轴线。 活塞设置在燃烧室中以沿着气缸中心轴线移动。 所述活塞具有顶表面，所述顶表面具有第一外腔，所述第一外腔具有第一空腔中心轴线，所述第二内腔位于所述外腔中。 第二内腔具有在垂直于气缸中心轴线的方向上偏离活塞的气缸中心轴线的第二空腔中心轴线。

    Direct fuel injection internal combustion engine
    5.
    发明授权
    Direct fuel injection internal combustion engine 有权
    直燃式内燃机

    公开(公告)号：US07086378B2

    公开(公告)日：2006-08-08

    申请号：US10990957

    申请日：2004-11-18

    申请人： Daisuke Tanaka ,  Koji Hiraya ,  Isamu Hotta ,  Hirofumi Tsuchida

    发明人： Daisuke Tanaka ,  Koji Hiraya ,  Isamu Hotta ,  Hirofumi Tsuchida

    IPC分类号： F02B3/02

    CPC分类号： F02B23/101 ,  Y02T10/125

    摘要： A direct fuel injection internal combustion engine includes a fuel injector arranged above a center portion of the piston and positioned higher than a combustion chamber upper surface of a cylinder head. The cylinder head includes a recess portion in which a tip of the fuel injector is disposed in a cross sectional view of the cylinder head in a plane perpendicular to a fuel injection center axis. The recess portion is provided with a channel extending longitudinally away from the tip of the fuel injector configured and arranged to reduce negative pressure within the recess portion. The channel is oriented in such a direction as to avoid the interference between the channel and other parts of the cylinder head. When the fuel injector is a multi-hole fuel injector, the channel can be oriented toward a direction along a centerline between two adjacent injection vents of the fuel injector.

    摘要翻译： 直接燃料喷射内燃机包括布置在活塞的中心部分上方并位于高于气缸盖的燃烧室上表面的燃料喷射器。 气缸盖包括凹部，燃料喷射器的前端在与燃料喷射中心轴线垂直的平面中在气缸盖的横截面视图中设置。 所述凹部设置有纵向延伸远离所述燃料喷射器的末端的通道，所述末端构造和布置成减小所述凹部内的负压。 通道朝向避免通道与气缸盖的其他部分之间的干涉的方向。 当燃料喷射器是多孔燃料喷射器时，通道可以朝向沿燃料喷射器的两个相邻喷射通气口之间的中心线的方向。

    Direct fuel injection engine
    6.
    发明授权
    Direct fuel injection engine 失效
    直接燃油喷射发动机

    公开(公告)号：US07028662B2

    公开(公告)日：2006-04-18

    申请号：US10969339

    申请日：2004-10-21

    申请人： Hirofumi Tsuchida ,  Koji Hiraya ,  Isamu Hotta ,  Taisuke Shiraishi ,  Toshikazu Shiino

    发明人： Hirofumi Tsuchida ,  Koji Hiraya ,  Isamu Hotta ,  Taisuke Shiraishi ,  Toshikazu Shiino

    IPC分类号： F02B19/08

    CPC分类号： F02B17/005 ,  F02B23/101 ,  F02B2023/103 ,  Y02T10/125

    摘要： A direct fuel injection engine is provided that an appropriate stratified fuel-air mixture is formed to conduct good stratified combustion over a wide range of loads. The engine has a fuel injection valve that is arranged at an upper surface of the combustion chamber on or near the center reciprocation axis of the piston and oriented such that the injection center axis of the fuel stream injected therefrom is slanted with respect to the center reciprocation axis of the piston. The piston is disposed in the combustion chamber to move along a cylinder center axis. The piston has a top surface having a first outer cavity having a first cavity center axis, and a second inner cavity located in the outer cavity. The second inner cavity has a second cavity center axis offset from the cylinder center axis of the piston in a direction perpendicular to the cylinder center axis.

    摘要翻译： 提供了直接燃料喷射发动机，其形成适当的分层燃料 - 空气混合物以在宽范围的负载下进行良好的分层燃烧。 发动机具有燃料喷射阀，该燃料喷射阀布置在燃烧室的上表面处或活塞的中心往复运动轴线附近，并被定向成使得从其喷射的燃料流的喷射中心轴线相对于中心往复运动倾斜 活塞轴线。 活塞设置在燃烧室中以沿着气缸中心轴线移动。 所述活塞具有顶表面，所述顶表面具有第一外腔，所述第一外腔具有第一空腔中心轴线，所述第二内腔位于所述外腔中。 第二内腔具有在垂直于气缸中心轴线的方向上偏离活塞的气缸中心轴线的第二空腔中心轴线。

    Direct fuel injection internal combustion engine
    7.
    发明申请
    Direct fuel injection internal combustion engine 有权
    直燃式内燃机

    公开(公告)号：US20050139191A1

    公开(公告)日：2005-06-30

    申请号：US10990957

    申请日：2004-11-18

    申请人： Daisuke Tanaka ,  Koji Hiraya ,  Isamu Hotta ,  Hirofumi Tsuchida

    发明人： Daisuke Tanaka ,  Koji Hiraya ,  Isamu Hotta ,  Hirofumi Tsuchida

    IPC分类号： F02B23/10 ,  F02M61/18 ,  F02B3/00

    CPC分类号： F02B23/101 ,  Y02T10/125

    摘要： A direct fuel injection internal combustion engine includes a fuel injector arranged above a center portion of the piston and positioned higher than a combustion chamber upper surface of a cylinder head. The cylinder head includes a recess portion in which a tip of the fuel injector is disposed in a cross sectional view of the cylinder head in a plane perpendicular to a fuel injection center axis. The recess portion is provided with a channel extending longitudinally away from the tip of the fuel injector configured and arranged to reduce negative pressure within the recess portion. The channel is oriented in such a direction as to avoid the interference between the channel and other parts of the cylinder head. When the fuel injector is a multi-hole fuel injector, the channel can be oriented toward a direction along a centerline between two adjacent injection vents of the fuel injector.

    摘要翻译： 直接燃料喷射内燃机包括布置在活塞的中心部分上方并位于高于气缸盖的燃烧室上表面的燃料喷射器。 气缸盖包括凹部，燃料喷射器的前端在与燃料喷射中心轴线垂直的平面中在气缸盖的横截面视图中设置。 所述凹部设置有纵向延伸远离所述燃料喷射器的末端的通道，所述末端构造和布置成减小所述凹部内的负压。 通道朝向避免通道与气缸盖的其他部分之间的干涉的方向。 当燃料喷射器是多孔燃料喷射器时，通道可以朝向沿燃料喷射器的两个相邻喷射通气口之间的中心线的方向。

    Direct fuel injection engine
    8.
    发明授权
    Direct fuel injection engine 失效
    直接燃油喷射发动机

    公开(公告)号：US06814046B1

    公开(公告)日：2004-11-09

    申请号：US10788324

    申请日：2004-03-01

    申请人： Koji Hiraya ,  Eiji Takahashi ,  Hirofumi Tsuchida ,  Isamu Hotta ,  Akihiko Kakuho

    发明人： Koji Hiraya ,  Eiji Takahashi ,  Hirofumi Tsuchida ,  Isamu Hotta ,  Akihiko Kakuho

    IPC分类号： F02B300

    CPC分类号： F02D13/0215 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02B2275/18 ,  F02D37/02 ,  F02D41/3023 ,  F02D41/3029 ,  F02D41/401 ,  F02D2041/001 ,  Y02T10/12 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/18 ,  Y02T10/44

    摘要： A direct fuel injection engine basically comprises a combustion chamber, a piston with a cavity, a fuel injection valve, a spark plug and a control unit. The fuel injection valve is configured and arranged to directly inject a fuel stream into the combustion chamber in a substantially constant hollow circular cone shape in a stratified combustion region. The control unit is configured to ignite a first air-fuel mixture formed directly after the fuel stream is injected and prior to a majority of the fuel stream striking the cavity when the direct fuel injection engine is operating in a low-load stratified combustion region, and to ignite a second air-fuel mixture formed after a majority of the fuel stream is guided by the cavity toward an upper portion of the combustion chamber above the cavity when the direct fuel injection engine is operating in a high-load stratified combustion region.

    摘要翻译： 直接燃料喷射发动机基本上包括燃烧室，具有空腔的活塞，燃料喷射阀，火花塞和控制单元。 燃料喷射阀被构造和布置成在分层燃烧区域中以基本恒定的中空圆锥形状将燃料流直接喷射到燃烧室中。 控制单元被配置为点燃燃料流被注入之后直接形成的第一空气 - 燃料混合物，并且当直接燃料喷射发动机在低负荷分层燃烧区域中操作时，大部分燃料流冲击空腔之前， 并且当所述直接燃料喷射发动机在高负荷分层燃烧区域中操作时，在所述燃料流的大部分被所述空腔朝向所述空腔上方的所述燃烧室的上部引导时，点燃形成的第二空气 - 燃料混合物。

    Exhaust emission control apparatus and method for internal combustion engine
    9.
    发明授权
    Exhaust emission control apparatus and method for internal combustion engine 失效

    公开(公告)号：US07073480B2

    公开(公告)日：2006-07-11

    申请号：US11246208

    申请日：2005-10-11

    申请人： Taisuke Shiraishi ,  Koji Hiraya ,  Isamu Hotta ,  Daisuke Tanaka

    发明人： Taisuke Shiraishi ,  Koji Hiraya ,  Isamu Hotta ,  Daisuke Tanaka

    IPC分类号： F02B17/00

    CPC分类号： F02P5/1502 ,  F02D41/024 ,  F02D41/3023 ,  F02D2200/0602 ,  Y02T10/26 ,  Y02T10/46

    摘要： An exhaust emission control apparatus for an internal combustion engine includes a fuel injection valve placed substantially at a midpoint above a combustion chamber of the engine; a piston having an outer cavity formed substantially in a midsection of an upper surface of the piston and an inner cavity formed in a bottom surface of the outer cavity; an ignition plug placed in a region right above the outer cavity; an exhaust purifying catalyst provided in an exhaust passage of the engine; and a controller. This controller is configured to carry out a stratified charge combustion when a temperature rise for the exhaust purifying catalyst is required, by forming air-fuel mixture which is richer than stoichiometric ratio and is able to be ignited by the ignition plug, within the outer cavity and in an area substantially right above the outer cavity, from a fuel injected through the fuel injection valve.

    Exhaust emission control apparatus and method for internal combustion engine
    10.
    发明申请
    Exhaust emission control apparatus and method for internal combustion engine 失效
    内燃机废气排放控制装置及方法

    公开(公告)号：US20060075741A1

    公开(公告)日：2006-04-13

    申请号：US11246208

    申请日：2005-10-11

    申请人： Taisuke Shiraishi ,  Koji Hiraya ,  Isamu Hotta ,  Daisuke Tanaka

    发明人： Taisuke Shiraishi ,  Koji Hiraya ,  Isamu Hotta ,  Daisuke Tanaka

    IPC分类号： F01N3/00 ,  F02B17/00 ,  F02F3/26

    CPC分类号： F02P5/1502 ,  F02D41/024 ,  F02D41/3023 ,  F02D2200/0602 ,  Y02T10/26 ,  Y02T10/46

    摘要： An exhaust emission control apparatus for an internal combustion engine includes a fuel injection valve placed substantially at a midpoint above a combustion chamber of the engine; a piston having an outer cavity formed substantially in a midsection of an upper surface of the piston and an inner cavity formed in a bottom surface of the outer cavity; an ignition plug placed in a region right above the outer cavity; an exhaust purifying catalyst provided in an exhaust passage of the engine; and a controller. This controller is configured to carry out a stratified charge combustion when a temperature rise for the exhaust purifying catalyst is required, by forming air-fuel mixture which is richer than stoichiometric ratio and is able to be ignited by the ignition plug, within the outer cavity and in an area substantially right above the outer cavity, from a fuel injected through the fuel injection valve.

    摘要翻译： 一种用于内燃机的废气排放控制装置，包括基本上位于发动机的燃烧室上方的中点处的燃料喷射阀， 具有基本上形成在所述活塞的上表面的中间部分的外腔的活塞和形成在所述外腔的底表面中的内腔; 放置在所述外腔正上方的区域中的火花塞; 设置在发动机的排气通路内的排气净化催化剂; 和控制器。 该控制器被配置为当需要用于排气净化催化剂的温度升高时，通过形成比化学计量比更丰富并且能够被火花塞点燃的空气 - 燃料混合物在外腔内进行分层充气燃烧 并且在基本上位于外腔正上方的区域中，从通过燃料喷射阀喷射的燃料。