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公开(公告)号：US07650872B2
公开(公告)日：2010-01-26
申请号：US12347705
申请日：2008-12-31
IPC分类号： F02F3/26
CPC分类号： F02B23/104 , F02B17/005 , F02B23/0675 , F02B2075/125 , Y02T10/123 , Y02T10/125
摘要： Disclosed is an internal combustion engine, which has a geometric compression ratio of 13.0 or greater, and a combustion chamber (4) configured to satisfy a condition of S/V2≦0.12 (mm−1) when a radius r of a hypothetical sphere (IS) with its center at an ignition point (CP) of a spark plug (3) is set to satisfy a condition of V2=0.15×V1, where: S (mm2) is an area of an interference surface between the hypothetical sphere (IS) and an inner wall of the combustion chamber (4) in a state when a piston (30) is at its top dead center position; V1 (mm3) is a volume of the combustion chamber 4 in the state when the piston (30) is at the top dead center position; and V2 (mm3) is a volume of a non-interference part of the hypothetical sphere (IS) which is free of interference with the inner wall of the combustion chamber (4) when the piston (30) is at the top dead center position. The internal combustion engine of the present invention can more reliably improve fuel economy.
摘要翻译： 本发明公开了一种几何压缩比为13.0以上的内燃机和构成为满足S / V2 <= 0.12（mm-1）的条件的燃烧室（4），当假想球体的半径r （IS），其中心位于火花塞（3）的点火点（CP）处以满足V2 = 0.15×V1的条件，其中：S（mm2）是假想球体 IS）和燃烧室（4）的内壁处于活塞（30）处于其上止点位置的状态; V1（mm3）是当活塞（30）处于上止点位置时的燃烧室4的容积; 而V2（mm3）是当活塞（30）处于上死点位置时，与燃烧室（4）的内壁不相干的假想球（IS）的非干涉部分的体积 。 本发明的内燃机能够更可靠地提高燃油经济性。
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公开(公告)号：US20100077990A1
公开(公告)日：2010-04-01
申请号：US12566561
申请日：2009-09-24
申请人： Kouji Shishime , Naoya Matsuo , Masahisa Yamakawa , Tatsuya Fujikawa , Takashi Youso , Toshiaki Nishimoto , Naohiro Yamaguchi , Mikinori Ohashi
发明人： Kouji Shishime , Naoya Matsuo , Masahisa Yamakawa , Tatsuya Fujikawa , Takashi Youso , Toshiaki Nishimoto , Naohiro Yamaguchi , Mikinori Ohashi
CPC分类号： F02D41/3023 , F02D13/0261 , F02D41/402 , F02P5/152 , Y02T10/18 , Y02T10/44
摘要： There is provided a method of controlling a spark ignited internal combustion engine having a fuel injector which injects fuel directly into its combustion chamber. The method comprises injecting a total amount of fuel into a combustion chamber by early in a compression stroke during a cylinder cycle at a first engine speed. The method further comprises injecting a first stage of fuel into the combustion chamber during a cylinder cycle by an early in a compression stroke of the cylinder cycle, and injecting a second stage of fuel by late in the compression stroke during the cylinder cycle at a second engine speed less than the first engine speed, after injecting the first stage of fuel. The amount of the second stage fuel is greater than an amount of said first stage fuel. Accordingly, the first and second stage fuels may not be pre-ignited before the spark ignition.
摘要翻译： 提供了一种控制具有燃料喷射器的火花点火内燃机的方法，所述燃料喷射器将燃料直接喷射到其燃烧室中。 该方法包括在第一发动机转速的汽缸循环期间，在压缩行程中早期将总量的燃料喷入燃烧室。 该方法还包括在汽缸循环期间在汽缸循环的早期压缩冲程期间将第一级燃料喷射到燃烧室中，并且在汽缸循环期间在压缩冲程中稍后喷射第二级燃料 发动机转速小于第一发动机转速后，注入第一级燃油。 第二级燃料的量大于所述第一级燃料的量。 因此，第一和第二级燃料在火花点火之前可能不被预先点燃。
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公开(公告)号：US08191528B2
公开(公告)日：2012-06-05
申请号：US12346976
申请日：2008-12-31
CPC分类号： F02B23/08 , F02B23/104 , Y02T10/125
摘要： Disclosed is an internal combustion engine (A), which has a valve overlap period (T) during which an intake valve (1) and an exhaust valve (2) are opened, and a geometric compression ratio of 13.0 or greater. The engine (A) is designed to satisfy, at a center timing (Tc) of the valve overlap period (T), a conditional expression: S1≧S2, where S1 is a cross-sectional area of a combustion chamber (4) taken along any selected one of a plurality of mutually parallel hypothetical cutting-planes (IP) each of which extends parallel to a linear reciprocating direction (d1 or d2) of at least one of the intake and exhaust valves (1, 2) and passes through a valve head (1a or 2a) of the at least one of the valves (1, 2), and S2 is an effective opening area defined between the valve head (1a or 2a) and a corresponding valve seat (11a or 12a) in a region on an outward side of the combustion chamber (4) relative to the selected hypothetical cutting-plane (IP). The present invention can reliably improve combusted-gas scavenging efficiency and intake-air charging efficiency.
摘要翻译： 公开了一种内燃机（A），其具有打开进气门（1）和排气阀（2）的气门重叠期（T），并且几何压缩比为13.0以上。 发动机（A）被设计成在阀重叠周期（T）的中心定时（Tc）满足条件表达式：S1≥S2，其中S1是所采用的燃烧室（4）的横截面面积 沿着平行于所述进气门和排气门（1,2）中的至少一个的直线往复运动方向（d1或d2）延伸的多个相互平行的假想切割平面（IP）中的任何一个选定的一个，并且通过 所述阀（1,2）和所述至少一个阀（S2）的阀头（1a或2a）是限定在所述阀头（1a或2a）和相应的阀座（11a或12a）之间的有效开口区域 相对于所选择的假想切割平面（IP）在燃烧室（4）的外侧的区域。 本发明可以可靠地提高燃气清除效率和进气充气效率。
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公开(公告)号：US20100242900A1
公开(公告)日：2010-09-30
申请号：US12749418
申请日：2010-03-29
CPC分类号： F02D41/3047 , F02B1/12 , F02B29/0406 , F02B2075/125 , F02D13/0238 , F02D13/0265 , F02D15/00 , F02D23/02 , F02D35/023 , F02D41/0002 , F02D41/006 , F02D41/402 , F02D2041/001 , F02D2041/3052 , F02P23/045 , Y02T10/12 , Y02T10/123 , Y02T10/128 , Y02T10/144 , Y02T10/18 , Y02T10/42 , Y02T10/44
摘要： Various systems and methods are disclosed for controlling an internal combustion engine system having an internal combustion engine, and a fuel injector which directly injects fuel into a combustion chamber of the internal combustion engine. One example method comprises, when a desired torque for the internal combustion engine system is in a first range, injecting a first stage fuel into the combustion chamber so that it ends during a middle stage of a compression stroke at the latest in a cylinder cycle; determining combustion of the first stage fuel initiated by its compression self-ignition; and injecting a second stage fuel into the combustion chamber in a period when the determined combustion of the first stage fuel continues at a timing determined so as to cause combustion of the second stage fuel with its compression self-ignition.
摘要翻译： 公开了用于控制具有内燃机的内燃机系统和将燃料直接喷射到内燃机的燃烧室中的燃料喷射器的各种系统和方法。 一个示例性方法包括，当内燃机系统的期望扭矩处于第一范围时，将第一级燃料喷射到燃烧室中，使得其在最后的气缸循环中在压缩冲程的中间阶段期间结束; 确定由其压缩自点火启动的第一级燃料的燃烧; 以及在所确定的第一级燃料的燃烧在确定为使第二级燃料以其压缩自点火燃烧的时刻继续进行的期间，将第二级燃料喷入燃烧室。
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公开(公告)号：US08544444B2
公开(公告)日：2013-10-01
申请号：US12749418
申请日：2010-03-29
IPC分类号： F02B3/12
CPC分类号： F02D41/3047 , F02B1/12 , F02B29/0406 , F02B2075/125 , F02D13/0238 , F02D13/0265 , F02D15/00 , F02D23/02 , F02D35/023 , F02D41/0002 , F02D41/006 , F02D41/402 , F02D2041/001 , F02D2041/3052 , F02P23/045 , Y02T10/12 , Y02T10/123 , Y02T10/128 , Y02T10/144 , Y02T10/18 , Y02T10/42 , Y02T10/44
摘要： Various systems and methods are disclosed for controlling an internal combustion engine system having an internal combustion engine, and a fuel injector which directly injects fuel into a combustion chamber of the internal combustion engine. One example method comprises, when a desired torque for the internal combustion engine system is in a first range, injecting a first stage fuel into the combustion chamber so that it ends during a middle stage of a compression stroke at the latest in a cylinder cycle; determining combustion of the first stage fuel initiated by its compression self-ignition; and injecting a second stage fuel into the combustion chamber in a period when the determined combustion of the first stage fuel continues at a timing determined so as to cause combustion of the second stage fuel with its compression self-ignition.
摘要翻译： 公开了用于控制具有内燃机的内燃机系统和将燃料直接喷射到内燃机的燃烧室中的燃料喷射器的各种系统和方法。 一个示例性方法包括，当内燃机系统的期望扭矩处于第一范围时，将第一级燃料喷射到燃烧室中，使得其在最后的气缸循环中在压缩冲程的中间阶段期间结束; 确定由其压缩自点火启动的第一级燃料的燃烧; 以及在所确定的第一级燃料的燃烧在确定为使第二级燃料以其压缩自点火燃烧的时刻继续进行的期间，将第二级燃料喷入燃烧室。
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公开(公告)号：US20090216427A1
公开(公告)日：2009-08-27
申请号：US12391974
申请日：2009-02-24
申请人： Masahisa Yamakawa , Toshiaki Nishimoto , Hirokazu Matsuura , Takashi Youso , Kouji Shishime , Mikinori Ohashi
发明人： Masahisa Yamakawa , Toshiaki Nishimoto , Hirokazu Matsuura , Takashi Youso , Kouji Shishime , Mikinori Ohashi
IPC分类号： F02D41/30
CPC分类号： F02D41/0002 , F02D13/0215 , F02D13/0269 , F02D2041/001 , F02D2041/002 , Y02T10/142 , Y02T10/42
摘要： Methods and systems for controlling an internal combustion engine are provided. One example method may include closing an intake valve later during a cylinder cycle than a timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized, and earlier during the cylinder cycle as a desired amount of air to be inducted into the cylinder increases, while an engine is operating at a given engine speed. The method may further include closing the intake valve earlier during a cylinder cycle as the engine speed increases when the desired amount of air to be inducted into the cylinder is at a maximum.
摘要翻译： 提供了用于控制内燃机的方法和系统。 一个示例性方法可以包括在气缸循环期间稍后关闭进气门比从空气进气通道引入气缸的空气量将最大化的时间，以及在气缸循环期间作为期望的空气量的时间 引擎进入汽缸增加，而发动机在给定的发动机转速下运行。 该方法可以进一步包括当汽缸循环期间较早地关闭进气门，因为当被引入汽缸的所需空气量处于最大值时发动机转速增加。
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公开(公告)号：US09328688B2
公开(公告)日：2016-05-03
申请号：US12749388
申请日：2010-03-29
CPC分类号： F02D41/3035 , F02D41/402 , Y02T10/128 , Y02T10/44
摘要： Various systems and methods are disclosed for controlling an internal combustion engine system having an internal combustion engine, a fuel injector which directly injects fuel into a combustion chamber of the internal combustion engine, and a supercharger which supercharges air into the combustion chamber. One example method comprises, injecting fuel into the combustion chamber multiple times so that a first part of the fuel is self ignited and a last part of the fuel being injected during the compression stroke or later in a cylinder cycle when a desired torque of said internal combustion engine system is in a first range; and increasing a pressure of air which the supercharger charges into the combustion chamber as amount of fuel injected into the combustion chamber during a cylinder cycle increases when the desired torque is in the first range.
摘要翻译： 公开了用于控制内燃机系统的各种系统和方法，所述内燃机系统具有内燃机，将燃料直接喷射到内燃机的燃烧室中的燃料喷射器，以及将空气增压到燃烧室中的增压器。 一个示例性方法包括：将燃料多次喷射到燃烧室中，使得燃料的第一部分自燃，并且在压缩行程期间或稍后在汽缸循环中喷射燃料的最后部分，当所述内部的期望扭矩 内燃机系统处于第一范围; 并且当期望的扭矩处于第一范围时，增加在气缸循环期间喷射到燃烧室中的燃料量增加时增压器充入燃烧室的空气压力。
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公开(公告)号：US08468823B2
公开(公告)日：2013-06-25
申请号：US12728830
申请日：2010-03-22
CPC分类号： F02D41/3035 , F02D41/3041 , F02D41/402 , Y02T10/128 , Y02T10/44
摘要： Disclosed is a supercharged direct-injection engine, which comprises a supercharging device (25, 30) for compressing intake air, and an injector 10 for directly injecting fuel into a combustion chamber 5. In the engine, an excess air factor λ as a ratio of an actual air-fuel ratio to a stoichiometric air-fuel ratio, at least in an engine warmed-up mode, is set to 2 or more in the entire engine-load region. Further, compressed self-ignited combustion is performed in a low engine-load region, and a supercharging amount by the supercharging device (25, 30) is increased along with an increase in engine load in a high engine-load region to allow the excess air factor λ to be kept at 2 or more. The engine of the present invention can effectively reduce NOx emission, while improving fuel economy.
摘要翻译： 公开了一种增压直喷式发动机，其包括用于压缩进气的增压装置（25,30）和用于将燃料直接喷射到燃烧室5中的喷射器10.在发动机中，过量空气因子λ作为比率 至少在发动机预热模式下，实际的空燃比至理论空燃比在整个发动机负载区域中设定为2以上。 此外，在低发动机负载区域中执行压缩自燃燃烧，并且通过增压装置（25,30）的增压量随着高发动机负载区域中的发动机负荷的增加而增加，以允许过量 空气因子λ保持在2以上。 本发明的发动机可以有效地减少NOx排放，同时提高燃油经济性。
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9.发明授权公开(公告)号：US08155862B2
公开(公告)日：2012-04-10
申请号：US12390107
申请日：2009-02-20
申请人： Toshiaki Nishimoto , Naohiro Yamaguchi , Masahisa Yamakawa , Takashi Youso , Kouji Shishime , Hiroaki Abe , Hiroki Morimoto , Naoya Matsuo , Naoya Watanabe
发明人： Toshiaki Nishimoto , Naohiro Yamaguchi , Masahisa Yamakawa , Takashi Youso , Kouji Shishime , Hiroaki Abe , Hiroki Morimoto , Naoya Matsuo , Naoya Watanabe
CPC分类号： F02D13/023 , F01L2820/032 , F02D41/0002 , F02D41/006 , F02D41/0065 , F02D2041/002 , Y02T10/18 , Y02T10/42 , Y02T10/47
摘要： A system and method of controlling an internal combustion engine are provided. The method may include closing said intake valve at a timing in a first range, which is before a maximum charge closing timing with which an amount of air inducted into said cylinder from said air intake passage would be maximized at a given engine speed, during a cylinder cycle when a desired amount of air to be inducted into said cylinder is less than or equal to a predetermined air amount at the given engine speed. The method may further include closing said intake valve at a timing in a second range, which is after said maximum charge closing timing and separated from said first range during a cylinder cycle, when a desired amount of air to be inducted into said cylinder is greater than said predetermined air amount at the given engine speed.
摘要翻译： 提供了一种控制内燃机的系统和方法。 该方法可以包括在第一范围内的定时关闭所述进气门，该第一范围在最大充气关闭正时之前，在最大充气关闭正时期间，在给定发动机转速期间，从所述进气通道引入所述气缸的空气量将最大化 当要被引入所述气缸的期望量的空气小于或等于在给定发动机速度下的预定空气量时，气缸循环。 该方法可以进一步包括在所述最大充气关闭正时之后的第二范围内的时刻关闭所述进气门，并且在气缸循环期间与所述第一范围分离时，当要被引入所述气缸的所需量的空气更大时 比在给定发动机转速下的所述预定空气量。
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公开(公告)号：US08150597B2
公开(公告)日：2012-04-03
申请号：US12391974
申请日：2009-02-24
申请人： Masahisa Yamakawa , Toshiaki Nishimoto , Hirokazu Matsuura , Takashi Youso , Kouji Shishime , Mikinori Ohashi
发明人： Masahisa Yamakawa , Toshiaki Nishimoto , Hirokazu Matsuura , Takashi Youso , Kouji Shishime , Mikinori Ohashi
CPC分类号： F02D41/0002 , F02D13/0215 , F02D13/0269 , F02D2041/001 , F02D2041/002 , Y02T10/142 , Y02T10/42
摘要： Methods and systems for controlling an internal combustion engine are provided. One example method may include closing an intake valve later during a cylinder cycle than a timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized, and earlier during the cylinder cycle as a desired amount of air to be inducted into the cylinder increases, while an engine is operating at a given engine speed. The method may further include closing the intake valve earlier during a cylinder cycle as the engine speed increases when the desired amount of air to be inducted into the cylinder is at a maximum.
摘要翻译： 提供了用于控制内燃机的方法和系统。 一个示例性方法可以包括在气缸循环期间稍后关闭进气门比从空气进气通道引入气缸的空气量将最大化的时间，以及在气缸循环期间较早的期望空气量 引擎进入汽缸增加，而发动机在给定的发动机转速下运行。 该方法可以进一步包括当汽缸循环期间较早地关闭进气门，因为当被引入汽缸的所需空气量处于最大值时发动机转速增加。
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