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1.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。
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公开(公告)号：US07334573B2
公开(公告)日：2008-02-26
申请号：US11684862
申请日：2007-03-12
CPC分类号： F02D41/006 , F02D13/0207 , F02D13/023 , F02D13/0249 , F02D13/0265 , F02D13/0269 , F02D15/02 , F02D41/0052 , F02D41/0065 , F02D2041/001 , F02M26/01 , F02M26/21 , Y02T10/142 , Y02T10/47
摘要： A NOx emission reduction apparatus includes high-temperature EGR gas supply means for supplying a high-temperature EGR gas into an engine cylinder, low-temperature EGR gas supply means for supplying a low-temperature EGR gas into the engine cylinder and very-low-load operation control means for, as an engine load decreases in a very-low-load range, increasing an EGR rate of the high-temperature EGR gas and decreasing an EGR rate of the low-temperature EGR gas for stable engine operations and NOx emission reduction.
摘要翻译： NOx排放减少装置包括用于将高温EGR气体供应到发动机气缸中的高温EGR气体供给装置，用于将低温EGR气体供应到发动机气缸中的低温EGR气体供给装置， 负载运行控制装置，用于随着发动机负荷在极低负载范围内减小，增加高温EGR气体的EGR率并降低用于稳定的发动机运转和NOx排放的低温EGR气体的EGR率 减少。
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公开(公告)号：US06832594B2
公开(公告)日：2004-12-21
申请号：US10327925
申请日：2002-12-26
申请人： Koji Hiraya , Tomonori Urushihara
发明人： Koji Hiraya , Tomonori Urushihara
IPC分类号： F02B500
CPC分类号： F02F3/26 , F02B23/101 , F02B23/104 , F02B2023/103 , F02B2075/125 , Y02T10/123 , Y02T10/125
摘要： A direct fuel injection engine has a fuel injection valve that injects fuel toward a cavity formed in a top of a piston, and a spark plug that ignites the fuel-air mixture resulting from the fuel injection. The direct fuel injection engine is configured to strengthen the penetration of the fuel streams, to improve the directionality of the fuel streams and to form in the cavity an agglomerate fuel-air mixture that is homogeneous and has uniform concentration. The cavity preferably has a bottom surface, a curved surface, and a flat surface. The fuel injection valve has a plurality of injection vents that spray solid-core fuel streams with angles formed between adjacent injection vents that are less than or equal to the spray angle of the fuel stream sprayed from each injection vent. The fuel streams form a combined fuel stream having a hollow circular cone shape.
摘要翻译： 直接燃料喷射发动机具有燃料喷射阀，其向形成在活塞顶部的空腔喷射燃料，以及火花塞，其点燃由燃料喷射产生的燃料 - 空气混合物。 直接燃料喷射发动机被构造成加强燃料流的穿透，以改善燃料流的方向性，并且在空腔中形成均匀且具有均匀浓度的凝聚燃料 - 空气混合物。 空腔优选具有底面，弯曲表面和平坦表面。 燃料喷射阀具有多个喷射孔，其喷射在相邻喷射口之间形成的角度小于或等于从每个喷射出口喷射的燃料流的喷射角度的实芯燃料流。 燃料流形成具有中空圆锥形状的组合燃料流。
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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。
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公开(公告)号：US06622689B2
公开(公告)日：2003-09-23
申请号：US10150157
申请日：2002-05-20
申请人： Kazuya Hasegawa , Koji Hiraya
发明人： Kazuya Hasegawa , Koji Hiraya
IPC分类号： F01L134
CPC分类号： F02D13/0265 , F01L1/34 , F02B1/12 , F02B23/104 , F02B2075/125 , F02D35/025 , F02D41/006 , F02D41/3041 , F02D2041/001 , F02M26/01 , Y02T10/18 , Y02T10/47
摘要： A method and system for controlling an auto-ignition in an internal combustion engine, comprises setting the closing timing of an outlet control device of a cylinder increasingly before or ahead a top dead center (TDC) during the exhaust stroke with the decreasing engine loads at the rate of a change in the closing timing per a unit change in the decreasing engine loads. This change in the closing timing increases with the decreasing engine loads. The opening timing of an inlet control device of the cylinder is set after the TDC.
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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。
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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。
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公开(公告)号：US20070209630A1
公开(公告)日：2007-09-13
申请号：US11716886
申请日：2007-03-12
CPC分类号： F01L1/3442 , F01L1/022 , F01L13/0026 , F01L2013/0073 , F01L2800/00 , F02B75/048 , F02D13/0211 , F02D13/0249 , F02D15/02 , F02D15/04 , Y02T10/18
摘要： A variable expansion-ratio engine includes an expansion-ratio adjuster configured to adjust an expansion ratio; a load detector configured to detect an engine load; and a controller configured to control the expansion-ratio adjuster. The controller controls the expansion ratio such that the expansion ratio at the time when the load is below a predetermined load value is set lower than that at the time when the load is equal to the predetermined load value.
摘要翻译： 可变膨胀比发动机包括构造成调节膨胀比的膨胀比调节器; 负载检测器，被配置为检测发动机负载; 以及控制器，被配置为控制所述膨胀比调节器。 控制器控制膨胀比使得当负载低于预定负载值时的膨胀比被设定为低于负载等于预定负载值时的膨胀比。
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公开(公告)号：US20060219211A1
公开(公告)日：2006-10-05
申请号：US11378045
申请日：2006-03-17
申请人： Koji Hiraya , Toshiya Kono , Masahiro Fukuzumi
发明人： Koji Hiraya , Toshiya Kono , Masahiro Fukuzumi
CPC分类号： F02D41/401 , F02D37/02 , F02D41/3023 , F02D2041/389 , F02F2001/247 , Y02T10/44
摘要： A direct-injection internal combustion engine and a combustion method therefore in which fuel injection timing of a fuel injection valve is so configured that (a) the fuel inverted from a cavity in a crown portion of a piston reaches proximity to the discharge electrode portion of a spark plug later than the time of ignition or (b) fuel injection by the fuel injection valve is completed at approximately the same time of ignition. There is no risk of rich combustion at the discharge electrode portion due to the mixed fuel-air mass having a high fuel density, and consequently problems such as wear on the spark plug or smoke generation can be avoided.
摘要翻译： 一种直喷式内燃机和燃烧方法，其特征在于，燃料喷射阀的燃料喷射正时构造成：（a）从活塞的顶部部分的空腔中倒转的燃料接近于活塞的顶部部分的放电电极部分 比点火时间晚的火花塞或燃料喷射阀的燃料喷射在大约同时点火的时刻完成。 由于具有高燃料密度的混合燃料 - 空气质量，在放电电极部分不存在富燃烧的风险，因此可以避免火花塞磨损或产生烟雾等问题。
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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。
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