-
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。
-
公开(公告)号：US20050098145A1
公开(公告)日：2005-05-12
申请号：US10969339
申请日：2004-10-21
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。
-
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。
-
公开(公告)号：US07028662B2
公开(公告)日：2006-04-18
申请号：US10969339
申请日：2004-10-21
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。
-
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
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。
-
6.发明申请公开(公告)号：US20110005496A1
公开(公告)日：2011-01-13
申请号：US12866906
申请日：2009-02-19
CPC分类号： F02D39/08 , F02D15/02 , F02D35/027 , F02D39/06 , F02D41/047 , F02D41/10 , F02D41/3023 , F02D41/3029 , F02D41/401 , F02D41/402 , Y02T10/44
摘要： A control apparatus is provided for a four stroke cylinder direct-injection internal combustion engine having a cylinder and a piston disposed within the cylinder. The control apparatus includes a variable compression ratio mechanism for variably controlling the engine compression ratio by changing the top dead center position of the piston and a fuel injection device for injecting fuel directly into the cylinder. When the actual compression ratio of the engine is higher than a target compression ratio, the variable compression ratio mechanism reduces the compression ratio, and in accordance with the reduction in the compression ratio, the fuel injecting device injects an intake fuel injection amount in the intake stroke and a compression fuel injection amount in the compression stroke, and the timing for starting the fuel injection in the compression stroke is retarded.
摘要翻译： 一种用于四冲程缸直喷式内燃机的控制装置，其具有设置在气缸内的气缸和活塞。 控制装置包括可变压缩比机构，用于通过改变活塞的上止点位置和用于将燃料直接喷射到气缸中的燃料喷射装置来可变地控制发动机压缩比。 当发动机的实际压缩比高于目标压缩比时，可变压缩比机构降低压缩比，并且根据压缩比的降低，燃料喷射装置在进气口喷射进气燃料喷射量 行程和压缩冲程中的压缩燃料喷射量，并且延迟了在压缩冲程中开始燃料喷射的定时。
-
公开(公告)号：US07980207B2
公开(公告)日：2011-07-19
申请号：US12255370
申请日：2008-10-21
申请人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
发明人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
IPC分类号： F02B75/04
CPC分类号： F02B75/048
摘要： A multi-link engine has a piston that moves inside a cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link. A crank pin of a crankshaft supports the lower link thereon. The lower link is pivotally connected to one end of a control link, which is connected at another end to the engine block body by a control shaft. The control shaft is lower than a crank journal of the crankshaft, and disposed on a first side of a plane that is parallel to a cylinder center axis and that contains a center rotational axis of the crank journal. The cylinder center axis is located on a second (i.e., opposite the first side) plane. The control link has a center axis that is parallel to the cylinder center axis when the piston is near top and bottom dead centers.
摘要翻译： 多连杆发动机具有在气缸内移动的活塞。 活塞销将活塞连接到连接到下部连杆的上部连杆。 曲轴的曲柄销支撑其上的下连杆。 下连杆枢转地连接到控制连杆的一端，控制链的另一端通过控制轴连接到发动机机体主体。 控制轴低于曲轴的曲柄轴颈，并且设置在平行于气缸中心轴线并且包含曲柄轴颈的中心旋转轴线的平面的第一侧上。 气缸中心轴位于第二侧（即，与第一侧相对）的平面上。 当活塞靠近上下死点时，控制连杆具有平行于气缸中心轴线的中心轴线。
-
公开(公告)号：US20060032478A1
公开(公告)日：2006-02-16
申请号：US11187235
申请日：2005-07-22
申请人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
发明人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
CPC分类号： F02B23/101 , Y02T10/125
摘要： In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besides, the fuel injection valve and the spark plug of at least one of the cylinders are inclined at different angles from each other in directions parallel to the cylinder arrangement direction. A cooling channel is provided between the fuel injection valve and the spark plug of the at least one of the cylinders.
摘要翻译： 在直喷式内燃机中，相邻气缸的燃料喷射阀和火花塞在与配置气缸的气缸排列方向垂直的方向上以不同的角度倾斜。 此外，至少一个气缸的燃料喷射阀和火花塞在与气缸排列方向平行的方向上以不同的角度倾斜。 在燃料喷射阀和至少一个气缸的火花塞之间设置冷却通道。
-
公开(公告)号：US08100098B2
公开(公告)日：2012-01-24
申请号：US12255390
申请日：2008-10-21
申请人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
发明人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
CPC分类号： F02B75/048
摘要： A multi-link engine has a piston coupled to a crankshaft to move inside an engine cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link by an upper link pin. A crank pin of the crankshaft rotatably supports the lower link thereon. A control link pin connects the lower link to one end of a control link, which is connected at another end to the engine block body by a control shaft. The upper link has an upper link axis that forms an angle with the cylinder axis, as viewed along a crank axis direction of the crankshaft, such that the angle reaches a minimum when a crank angle of the engine is within a range where the bottom end of a piston skirt is positioned below a topmost part of the bottom end of the cylinder liner.
摘要翻译： 多连杆发动机具有联接到曲轴以在发动机气缸内移动的活塞。 活塞销将活塞连接到上连杆，上连杆通过上连杆销连接到下连杆。 曲轴的曲柄销可旋转地支撑其上的下连杆。 控制连杆销将下连杆连接到控制链节的另一端，控制链通过控制轴连接到发动机机体。 上部连杆具有与曲轴的曲柄轴方向观察时与气缸轴线形成角度的上连杆轴，使得当发动机的曲轴角度在下端 活塞裙部位于气缸套的底端的最上部的下方。
-
公开(公告)号：US08100097B2
公开(公告)日：2012-01-24
申请号：US12255336
申请日：2008-10-21
申请人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
发明人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
IPC分类号： F02B75/04
CPC分类号： F02B75/048
摘要： A multi-link engine has a piston coupled to a crankshaft to move inside an engine cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link by an upper link pin. A crank pin of the crankshaft rotatably supports the lower link thereon. A control link pin connects the lower link to one end of a control link, which is connected at another end to the engine block body by a control shaft. The crank pin has a center arranged on a straight line joining centers of the upper link pin and the control link pin such that an angle formed between the straight line and a horizontal axis that is perpendicular to a center axis of the cylinder and that passes through an axial center of a crank journal is the same for at top dead center and at bottom dead center.
摘要翻译： 多连杆发动机具有联接到曲轴以在发动机气缸内移动的活塞。 活塞销将活塞连接到上连杆，上连杆通过上连杆销连接到下连杆。 曲轴的曲柄销可旋转地支撑其上的下连杆。 控制连杆销将下连杆连接到控制链节的另一端，控制链通过控制轴连接到发动机机体。 曲柄销的中心设置在与上连杆销和控制连杆销的中心连接的直线上，使得在直线与水平轴线之间形成的角度垂直于气缸的中心轴线并穿过 曲柄轴颈的轴心在上止点和下止点处是相同的。
-
-
-
-
-
-
-
-
-
搜索结果
63 条记录 (耗时 0.023 秒)
