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    Direct fuel injection engine
    1.
    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
    2.
    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。

    Direct fuel injection internal combustion engine
    4.
    发明授权
    Direct fuel injection internal combustion engine 失效
    直燃式内燃机

    公开(公告)号：US06739309B2

    公开(公告)日：2004-05-25

    申请号：US10421874

    申请日：2003-04-24

    申请人： Koji Hiraya ,  Akihiko Kakuho ,  Tomonori Urushihara

    发明人： Koji Hiraya ,  Akihiko Kakuho ,  Tomonori Urushihara

    IPC分类号： F02F326

    CPC分类号： F02B23/10 ,  F02B2023/103 ,  F02B2075/125 ,  F02B2275/18 ,  Y02T10/123 ,  Y02T10/125

    摘要： A direct fuel injection internal combustion engine comprises a combustion chamber, a fuel injection valve and a spark plug. The combustion chamber has a piston including an outer cavity located in a top surface of the piston and an inner cavity located in the outer cavity. The outer and inner cavities are substantially axially symmetrical about the reciprocation axis of the piston. The fuel injection valve is arranged adjacent the reciprocation axis of the piston to inject a fuel stream directly into the combustion chamber. The spark plug is arranged adjacent the reciprocation axis of the piston to ignite a fuel-air mixture inside the combustion chamber. The direct fuel injection internal combustion engine further comprises a control unit configured to vary at least one of frequency and start timings of the fuel injection valve based on an engine operating condition.

    摘要翻译： 直接燃料喷射内燃机包括燃烧室，燃料喷射阀和火花塞。 燃烧室具有包括位于活塞顶表面中的外腔和位于外腔中的内腔的活塞。 外腔和内腔基本上是关于活塞的往复运动轴线对称的。 燃料喷射阀邻近活塞的往复运动轴设置，以将燃料流直接喷入燃烧室。 火花塞被布置成邻近活塞的往复运动轴线点燃燃烧室内的燃料 - 空气混合物。 直接燃料喷射内燃机还包括控制单元，该控制单元被配置为基于发动机运行状态来改变燃料喷射阀的频率和开始定时中的至少一个。

    Internal combustion engine with a precombustion chamber
    6.
    发明授权
    Internal combustion engine with a precombustion chamber 失效
    具有预燃室的内燃机

    公开(公告)号：US07584739B2

    公开(公告)日：2009-09-08

    申请号：US11637930

    申请日：2006-12-13

    申请人： Eiji Takahashi ,  Toru Noda ,  Akihiko Kakuho ,  Isamu Hotta ,  Koichi Ashida

    发明人： Eiji Takahashi ,  Toru Noda ,  Akihiko Kakuho ,  Isamu Hotta ,  Koichi Ashida

    IPC分类号： F02B19/10 ,  F02B19/12

    CPC分类号： F02D13/0265 ,  F02B19/12 ,  F02B23/101 ,  F02B23/104 ,  Y02T10/125 ,  Y02T10/18

    摘要： An internal combustion engine includes neighboring main and auxiliary combustion chambers that are separated by a partition wall including a communicating passage. Ignition of an air/fuel mixture in the auxiliary combustion chamber produces a fuel torch that is jetted into an air/fuel mixture in the main combustion chamber. Under a predetermined operation condition, timing for opening an intake valve is retarded relative to both the timing for closing an exhaust valve and the timing for top dead center of a piston on an exhaust stroke. By retarding the timing for opening the intake valve, residual gas in the auxiliary combustion that is left over from a previous cycle can be reduced.

    摘要翻译： 内燃机包括由包括连通通道的分隔壁隔开的相邻的主燃烧室和辅助燃烧室。 在辅助燃烧室中点燃空气/燃料混合物产生喷射到主燃烧室中的空气/燃料混合物中的燃料喷枪。 在预定操作条件下，相对于关闭排气门的时间和排气冲程上的活塞的上止点的定时两者都延迟了用于打开进气门的定时。 通过延迟打开进气门的时间，可以减少从先前循环留下的辅助燃烧中的残留气体。

    Internal combustion engine with a precombustion chamber
    8.
    发明申请
    Internal combustion engine with a precombustion chamber 失效
    具有预燃室的内燃机

    公开(公告)号：US20070151540A1

    公开(公告)日：2007-07-05

    申请号：US11637930

    申请日：2006-12-13

    申请人： Eiji Takahashi ,  Toru Noda ,  Akihiko Kakuho ,  Isamu Hotta ,  Koichi Ashida

    发明人： Eiji Takahashi ,  Toru Noda ,  Akihiko Kakuho ,  Isamu Hotta ,  Koichi Ashida

    IPC分类号： F02B19/10 ,  F02B19/14

    CPC分类号： F02D13/0265 ,  F02B19/12 ,  F02B23/101 ,  F02B23/104 ,  Y02T10/125 ,  Y02T10/18

    摘要： An internal combustion engine includes neighboring main and auxiliary combustion chambers that are separated by a partition wall including a communicating passage. Ignition of an air/fuel mixture in the auxiliary combustion chamber produces a fuel torch that is jetted into an air/fuel mixture in the main combustion chamber. Under a predetermined operation condition, timing for opening an intake valve is retarded relative to both the timing for closing an exhaust valve and the timing for top dead center of a piston on an exhaust stroke. By retarding the timing for opening the intake valve, residual gas in the auxiliary combustion that is left over from a previous cycle can be reduced.

    摘要翻译： 内燃机包括由包括连通通道的分隔壁隔开的相邻的主燃烧室和辅助燃烧室。 在辅助燃烧室中点燃空气/燃料混合物产生喷射到主燃烧室中的空气/燃料混合物中的燃料喷枪。 在预定操作条件下，相对于关闭排气门的时间和排气冲程上的活塞的上止点的定时两者都延迟了用于打开进气门的定时。 通过延迟打开进气门的时间，可以减少从先前循环留下的辅助燃烧中的残留气体。