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1. 发明授权

US06659068B2 Feedback control for auto-ignition two-stage combustion of gasoline in engine cylinder 有权
标题翻译：发动机气缸汽油自动点火二级燃烧的反馈控制
公开(公告)号：US06659068B2
公开(公告)日：2003-12-09
申请号：US09853704
申请日：2001-05-14
申请人： Tomonori Urushihara , Koudai Yoshizawa , Koji Hiraya
发明人： Tomonori Urushihara , Koudai Yoshizawa , Koji Hiraya
IPC分类号： F02B1700
CPC分类号： F02D35/028 , F02B1/12 , F02B2075/125 , F02D35/023 , F02D35/027 , F02D41/3047 , F02D41/401 , F02F2001/245 , Y02T10/123 , Y02T10/44
摘要： A split injection of gasoline produces stratified charge in at least one cylinder. A sensor measures cylinder pressure or knock and generates a sensor signal indicative of combustion event timing of stratified charge. From the sensor signal, a controller determines an actual value of a characteristic parameter representing combustion event timing in the cylinder. The controller modifies at least one of operating variables governing a split injection for the subsequent cycle in such a direction as to decrease a deviation between the actual value of the characteristic parameter and a target value thereof toward zero.
摘要翻译：汽油的分体喷射在至少一个汽缸中产生分层电荷。传感器测量气缸压力或敲击并产生指示分层电荷的燃烧事件时间的传感器信号。从传感器信号，控制器确定表示气缸中的燃烧事件定时的特性参数的实际值。控制器在控制用于后续周期的分割喷射的操作变量中的至少一个方向上，将特征参数的实际值和其目标值之间的偏差减小到零。

2. 发明授权

US06609493B2 System and method for enhanced combustion control in an internal combustion engine 有权
标题翻译：一种用于内燃机燃烧控制的系统和方法
公开(公告)号：US06609493B2
公开(公告)日：2003-08-26
申请号：US09986037
申请日：2001-11-07
申请人： Koichi Yamaguchi , Tomonori Urushihara , Koudai Yoshizawa , Tsuyoshi Taniyama
发明人： Koichi Yamaguchi , Tomonori Urushihara , Koudai Yoshizawa , Tsuyoshi Taniyama
IPC分类号： F02M4300
CPC分类号： F02D41/005 , F02B1/12 , F02B3/04 , F02B23/101 , F02D13/0265 , F02D37/02 , F02D41/006 , F02D41/0065 , F02D41/3011 , F02D41/3041 , F02D41/3047 , F02D41/401 , F02D41/402 , Y02T10/44 , Y02T10/47
摘要： A fuel supply system has a fuel injector positioned to directly inject fuel into a combustion chamber, and it is capable of performing a split injection wherein a first fuel injection in each engine cycle precedes a second fuel injection that occurs during compression stroke in the same engine cycle. A spark plug produces a spark to ignite a first air/fuel mixture portion created due to the second fuel injection, initiating a first stage combustion. The first stage combustion raises temperature and pressure high enough to cause auto-ignition of a second air/fuel mixture portion surrounding the first air-fuel mixture portion, initiating a second stage combustion. This control is accomplished by varying at least one of a fuel injection timing of the first fuel injection, a fuel injection timing of the second fuel injection, spark timing, a proportion of fuel quantity of the second fuel injection to the total fuel injected in each engine cycle, and an EGR rate in response to at least one of engine speed and load.
摘要翻译：燃料供给系统具有定位成将燃料直接喷射到燃烧室中的燃料喷射器，并且其能够执行分离喷射，其中在每个发动机循环中的第一燃料喷射先于在同一发动机中的压缩冲程期间发生的第二燃料喷射周期。火花塞产生火花以点燃由于第二燃料喷射而产生的第一空气/燃料混合物部分，开始第一级燃烧。第一级燃烧提高了足够高的温度和压力，引起围绕第一空气 - 燃料混合物部分的第二空气/燃料混合物部分的自动点火，开始第二阶段燃烧。该控制是通过改变第一燃料喷射的燃料喷射正时，第二燃料喷射的燃料喷射正时，火花正时，第二燃料喷射的燃料量与在每个燃料喷射中喷射的总燃料的比例中的至少一个来实现的发动机循环，以及响应于发动机转速和负载中的至少一个的EGR率。

3. 发明授权

US06688293B2 System and method for auto-ignition support 失效
标题翻译：自动点火支持系统和方法
公开(公告)号：US06688293B2
公开(公告)日：2004-02-10
申请号：US10094970
申请日：2002-03-12
申请人： Tomonori Urushihara , Koichi Yamaguchi , Kazuya Hasegawa , Koudai Yoshizawa
发明人： Tomonori Urushihara , Koichi Yamaguchi , Kazuya Hasegawa , Koudai Yoshizawa
IPC分类号： F02B4708
CPC分类号： F02D13/0276 , F02B1/12 , F02B47/08 , F02D13/0273 , F02M26/01 , F02M26/37 , Y02T10/18
摘要： An internal combustion engine includes a cylinder including at least one intake valve which is selectively open to allow at least air to enter the cylinder and at least one exhaust valve which is selectively open to allow residual gas escape from the cylinder after a firing event. An auto-ignition system for such an engine comprises a device communicably coupled with the cylinder. The device is, effective to allow an amount of high temperature and pressure residual gas to enter the cylinder in the compression stroke of an engine cycle after valve closure of the intake valve.
摘要翻译：一种内燃机包括一个气缸，该气缸包括至少一个进气门，该至少一个进气门选择性地打开以允许至少空气进入气缸;以及至少一个选择性打开的排气阀，以便在点火事件之后允许残余气体从气缸中逸出。用于这种发动机的自动点火系统包括与气缸可通信地联接的装置。该装置有效地允许一定量的高温和高压残余气体在进气门关闭后在发动机循环的压缩冲程中进入气缸。

4. 发明授权

US06619255B2 Combustion event indicative parameter dependent control for auto-ignited combustion 失效
公开(公告)号：US06619255B2
公开(公告)日：2003-09-16
申请号：US10001971
申请日：2001-12-05
申请人： Tomonori Urushihara , Koudai Yoshizawa , Tsuyoshi Taniyama , Koichi Yamaguchi
发明人： Tomonori Urushihara , Koudai Yoshizawa , Tsuyoshi Taniyama , Koichi Yamaguchi
IPC分类号： F02B1700
CPC分类号： F02D35/028 , F02B1/12 , F02B17/005 , F02B2075/125 , F02D35/023 , F02D35/027 , F02D41/3041 , F02D41/3047 , F02D41/3809 , F02D2200/602 , F02P5/045 , Y02T10/123
摘要： A system and method for controlling an internal combustion engine employs a split injection to create stratified air/fuel mixture charge. The stratified charge includes an ignitable air/fuel mixture portion around a spark plug within the surrounding lean air/fuel mixture and experiences a two-stage combustion. The first stage is combustion of the ignitable air/fuel mixture portion initiated by a spark produced by the spark plug, providing an additional increase of cylinder pressure. The second stage is auto-ignited combustion of the surrounding lean air/fuel mixture induced by such additional cylinder pressure increase. The system and method also employ generating a combustion event indicative (CEI) parameter related with combustion speed or ignition timing point of auto-ignition of auto-ignited combustion of the surrounding mixture, and determining control parameters of a spark timing controller and a fuel supply controller in response to the CEI parameter.

5. 发明授权

US06336436B1 Compression autoignition gasoline engine 有权
标题翻译：压缩自燃汽油机
公开(公告)号：US06336436B1
公开(公告)日：2002-01-08
申请号：US09661407
申请日：2000-09-13
申请人： Hiroshi Miyakubo , Koudai Yoshizawa , Tomonori Urushihara , Atsushi Teraji
发明人： Hiroshi Miyakubo , Koudai Yoshizawa , Tomonori Urushihara , Atsushi Teraji
IPC分类号： F02B1700
CPC分类号： F02D13/0215 , F02B1/04 , F02B1/12 , F02B3/06 , F02B11/02 , F02B17/005 , F02B23/101 , F02B69/00 , F02B2075/125 , F02D13/0265 , F02D37/02 , F02D41/0002 , F02D41/3029 , F02D41/3035 , F02D41/3064 , F02D41/401 , F02D2041/001 , F02D2041/389 , F02M26/01 , Y02T10/123 , Y02T10/18 , Y02T10/42 , Y02T10/44
摘要： A gasoline engine has an actuating system including an in-cylinder fuel injection system and an ignition system, capable of changing over combustion between spark ignition combustion and compression autoignition combustion, and a controlling system for controlling the combustion changeover. In a transition from one combustion to the other, the actuating system is controlled to perform transient combustion such as stratified charge combustion with fuel injection on the compression stroke, or combustion with fuel injection during a valve shutoff period during which intake and exhaust valves are both closed.
摘要翻译：汽油发动机具有能够切换火花点火燃烧和压缩自燃燃烧之间的燃烧的缸内燃料喷射系统和点火系统的致动系统，以及用于控制燃烧切换的控制系统。在从一个燃烧到另一个燃烧的过渡中，致动系统被控制以执行瞬时燃烧，例如在压缩冲程上具有燃料喷射的分层充气燃烧，或者在进气和排气阀都在阀关闭期间的燃料喷射期间燃烧关闭。

6. 发明授权

US06832594B2 Direct fuel injection engine 失效
标题翻译：直接燃油喷射发动机
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。

7. 发明授权

US06739309B2 Direct fuel injection internal combustion engine 失效
标题翻译：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。

8. 发明申请

US20050045145A1 Direct fuel injection engine 失效
标题翻译：直接燃油喷射发动机
公开(公告)号：US20050045145A1
公开(公告)日：2005-03-03
申请号：US10960966
申请日：2004-10-12
申请人： Koji Hiraya , Tomonori Urushihara
发明人： Koji Hiraya , Tomonori Urushihara
IPC分类号： F02B23/10 , F02B75/12 , F02F3/26
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。

9. 发明授权

US06672276B2 Direct fuel injection engine 失效
标题翻译：直接燃油喷射发动机
公开(公告)号：US06672276B2
公开(公告)日：2004-01-06
申请号：US10327924
申请日：2002-12-26
申请人： Koji Hiraya , Tomonori Urushihara
发明人： Koji Hiraya , Tomonori Urushihara
IPC分类号： F02F326
CPC分类号： F02B23/101 , F02B23/104 , F02B2023/103 , F02B2075/125 , F02B2275/18 , F02F3/26 , 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 stably form an agglomerate fuel-air mixture close to the spark plug. The cavity preferably has a bottom surface, a curved surface, and a flat surface. In a plan view taken along the center axis of the engine cylinder, cavity C is shaped like an ellipse whose foci are located at the tip of fuel injection valve and the spark discharge gap of spark plug, respectively. The fuel injection valve has a plurality of injection vents that spray solid-core fuel streams.
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稳定地形成靠近火花塞的附聚燃料 - 空气混合物。空腔优选具有底面，弯曲表面和平坦表面。在沿着发动机气缸的中心轴线的平面图中，空腔C的形状分别形成为其焦点位于燃料喷射阀的末端和火花塞的火花放电间隙的椭圆形。燃料喷射阀具有喷射固体燃料流的多个喷射孔。

10. 发明授权

US07104247B2 Direct fuel injection engine 失效
公开(公告)号：US07104247B2
公开(公告)日：2006-09-12
申请号：US10960966
申请日：2004-10-12
申请人： Koji Hiraya , Tomonori Urushihara
发明人： Koji Hiraya , Tomonori Urushihara
IPC分类号： F02B23/10 , F02F3/26
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.

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