-
公开(公告)号：US07360531B2
公开(公告)日：2008-04-22
申请号：US11520700
申请日：2006-09-14
CPC分类号： F02B31/085 , F02B23/08 , F02B23/101 , F02B2023/085 , F02B2031/006 , Y02T10/125 , Y02T10/146
摘要： This invention relates to a combustion chamber structure for a spark-ignition engine, which comprises a combustion chamber defined between a bottom surface of a cylinder head and a top surface of a piston in such a manner that the bottom surface of the cylinder head serves as a ceiling wall thereof, and a spark plug having a sparking end protruding from the ceiling wall into the combustion chamber. In this combustion chamber structure, when the piston is at a top dead center, a principal space of the combustion chamber is comprised of a first combustion space around the sparking end of the spark plug and a second combustion space around a circumference of a cylinder bore. Further, the first combustion space and the second combustion space are communicated with each other through a small interspace zone where an interspace between the ceiling wall and the top surface of the piston is narrowed. The combustion chamber structure makes it possible to increase compression ratio in a practically effective manner.
摘要翻译： 本发明涉及一种用于火花点火发动机的燃烧室结构，该燃烧室结构包括燃烧室，该燃烧室限定在气缸盖的底表面和活塞的顶表面之间，使得气缸盖的底表面用作 其顶壁和火花塞具有从顶壁向燃烧室突出的火花端。 在该燃烧室结构中，当活塞处于上止点时，燃烧室的主要空间由火花塞的火花端周围的第一燃烧空间和围绕气缸孔周围的第二燃烧空间 。 此外，第一燃烧空间和第二燃烧空间通过在顶壁与活塞顶面之间的间隙变窄的小间隙区域彼此连通。 燃烧室结构使得可以以实际有效的方式增加压缩比。
-
公开(公告)号：US20070056556A1
公开(公告)日：2007-03-15
申请号：US11520700
申请日：2006-09-14
CPC分类号： F02B31/085 , F02B23/08 , F02B23/101 , F02B2023/085 , F02B2031/006 , Y02T10/125 , Y02T10/146
摘要： This invention relates to a combustion chamber structure for a spark-ignition engine, which comprises a combustion chamber defined between a bottom surface of a cylinder head and a top surface of a piston in such a manner that the bottom surface of the cylinder head serves as a ceiling wall thereof, and a spark plug having a sparking end protruding from the ceiling wall into the combustion chamber. In this combustion chamber structure, when the piston is at a top dead center, a principal space of the combustion chamber is comprised of a first combustion space around the sparking end of the spark plug and a second combustion space around a circumference of a cylinder bore. Further, the first combustion space and the second combustion space are communicated with each other through a small interspace zone where an interspace between the ceiling wall and the top surface of the piston is narrowed. The combustion chamber structure makes it possible to increase compression ratio in a practically effective manner.
摘要翻译： 本发明涉及一种用于火花点火发动机的燃烧室结构，该燃烧室结构包括燃烧室，该燃烧室限定在气缸盖的底表面和活塞的顶表面之间，使得气缸盖的底表面用作 其顶壁和火花塞具有从顶壁向燃烧室突出的火花端。 在该燃烧室结构中，当活塞处于上止点时，燃烧室的主要空间由火花塞的火花端周围的第一燃烧空间和围绕气缸孔周围的第二燃烧空间 。 此外，第一燃烧空间和第二燃烧空间通过在顶壁与活塞顶面之间的间隙变窄的小间隙区域彼此连通。 燃烧室结构使得可以以实际有效的方式增加压缩比。
-
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。
-
4.发明授权公开(公告)号：US08196560B2
公开(公告)日：2012-06-12
申请号：US12410076
申请日：2009-03-24
CPC分类号： F02B23/104 , F02B17/005 , F02B2023/103 , F02B2023/106 , F02B2075/125 , F02D13/0238 , F02M61/1813 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A multi-hole injector directly injects fuel into a combustion chamber. Intake air is introduced into the combustion chamber through intake ports to provide tumble flow in the combustion chamber. A cavity is formed in a part of the top surface of a piston which is eccentric to the exhaust side. In the intake stroke, fuel injection ends in a downstroke of a piston. When the crank angle is 100 degrees after the top dead center in the intake stroke at which the fuel injection ends, a most downward lower spray collides with a part of the top surface of the piston which ranges on the intake side from the edge on the exhaust side of the cavity. A most upward upper spray does not come into contact with a spark plug. Thus, the fuel injection can enhance the tumble flow to promote homogeneous dispersion of fuel-air mixture in the combustion chamber.
摘要翻译： 多孔喷射器将燃料直接喷射到燃烧室中。 吸入空气通过进气口引入燃烧室，以在燃烧室中提供滚筒流。 在与排气侧偏心的活塞的上表面的一部分中形成空腔。 在进气冲程中，燃料喷射以活塞的下冲程结束。 当燃料喷射结束的进气行程中的上止点之后的曲柄角为100度时，最下面的下喷射与活塞顶表面的一部分在入口侧的边缘上相撞 空腔的排气侧。 最向上的上喷雾器不会与火花塞接触。 因此，燃料喷射可以增强滚筒流动，以促进燃料 - 空气混合物在燃烧室中的均匀分散。
-
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。
-
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。
-
7.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。
-
8.发明申请公开(公告)号：US20090235897A1
公开(公告)日：2009-09-24
申请号：US12410076
申请日：2009-03-24
IPC分类号： F02B5/00
CPC分类号： F02B23/104 , F02B17/005 , F02B2023/103 , F02B2023/106 , F02B2075/125 , F02D13/0238 , F02M61/1813 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A multi-hole injector directly injects fuel into a combustion chamber. Intake air is introduced into the combustion chamber through intake ports to provide tumble flow in the combustion chamber. A cavity is formed in a part of the top surface of a piston which is eccentric to the exhaust side. In the intake stroke, fuel injection ends in a downstroke of a piston. When the crank angle is 100 degrees after the top dead center in the intake stroke at which the fuel injection ends, a most downward lower spray collides with a part of the top surface of the piston which ranges on the intake side from the edge on the exhaust side of the cavity. A most upward upper spray does not come into contact with a spark plug. Thus, the fuel injection can enhance the tumble flow to promote homogeneous dispersion of fuel-air mixture in the combustion chamber.
摘要翻译： 多孔喷射器将燃料直接喷射到燃烧室中。 吸入空气通过进气口引入燃烧室，以在燃烧室中提供滚筒流。 在与排气侧偏心的活塞的上表面的一部分中形成空腔。 在进气冲程中，燃料喷射以活塞的下冲程结束。 当燃料喷射结束的进气行程中的上止点之后的曲柄角为100度时，最下面的下喷射与活塞顶表面的一部分在入口侧的边缘上相撞 空腔的排气侧。 最向上的上喷雾器不会与火花塞接触。 因此，燃料喷射可以增强滚筒流动，以促进燃料 - 空气混合物在燃烧室中的均匀分散。
-
公开(公告)号：US08919303B2
公开(公告)日：2014-12-30
申请号：US13818051
申请日：2011-06-27
申请人： Kouji Shishime , Junsou Sasaki , Hideki Omori
发明人： Kouji Shishime , Junsou Sasaki , Hideki Omori
CPC分类号： F02B75/04 , F02D13/02 , F02D15/00 , F02D41/006 , F02D2200/10 , F02P5/045 , F02P5/152 , Y02T10/18
摘要： An exhaust manifold has a plurality of branched exhaust passages connected to respective exhaust ports of individual cylinders; a plurality of first collector segments each of which joins the branched exhaust passages for the cylinders which are not adjacent in the exhaust order sequence; a plurality of middle exhaust passages connected to the downstream of the first collector segments, respectively; and a second collector segment that joins the middle exhaust passages. In at least low and middle speed ranges in a high load region of the engine, a valve opening time of an exhaust valve is changed according to the engine speed so that a predetermined amount of a valve overlap period is ensured and that negative pressure waves from exhaust pressure pulses reach an exhaust port during the valve overlap period in a plurality of engine speed ranges.
摘要翻译： 排气歧管具有连接到各个气缸的相应排气口的多个分支排气通道; 多个第一收集器段，每个第一收集器段连接用于在排气顺序序列中不相邻的气缸的分支排气通道; 多个中间排气通道分别连接到第一收集器段的下游; 以及连接中间排气通道的第二收集器段。 在发动机的高负载区域的至少中低档范围内，根据发动机转速来改变排气阀的开阀时间，从而确保预定量的阀重叠期间， 排气压力脉冲在多个发动机转速范围内的气门重叠期间到达排气口。
-
公开(公告)号：US20130152901A1
公开(公告)日：2013-06-20
申请号：US13818051
申请日：2011-06-27
申请人： Kouji Shishime , Junsou Sasaki , Hideki Omori
发明人： Kouji Shishime , Junsou Sasaki , Hideki Omori
IPC分类号： F02B75/04
CPC分类号： F02B75/04 , F02D13/02 , F02D15/00 , F02D41/006 , F02D2200/10 , F02P5/045 , F02P5/152 , Y02T10/18
摘要： An engine has a geometric compression ratio of higher than 12, and includes an exhaust manifold, a variable exhaust valve timing mechanism, an ignition timing controller, and an effective compression ratio adjuster. The exhaust manifold has a plurality of branched exhaust passages connected to the respective exhaust ports of the individual cylinders; a plurality of first collector segments each of which joins the branched exhaust passages for the cylinders which are not adjacent in the exhaust order sequence; a plurality of middle exhaust passages connected to the downstream of the first collector segments, respectively; and a second collector segment that joins the middle exhaust passages. In at least low and middle speed ranges in a high load region of the engine, the effective compression ratio is set to have a value larger than 10 and the ignition timing is retarded, and the valve opening time of the exhaust valve is changed according to the engine speed so that a predetermined amount of a valve overlap period is ensured and that negative pressure waves from exhaust pressure pulses reach an exhaust port during the valve overlap period in a plurality of engine speed ranges. This effectively reduces knocking in low and middle speed ranges in a high load region of the engine while achieving high torque by keeping the compression ratio high.
摘要翻译： 发动机具有高于12的几何压缩比，并且包括排气歧管，可变排气门正时机构，点火正时控制器和有效压缩比调节器。 排气歧管具有连接到各个气缸的相应排气口的多个分支排气通道; 多个第一收集器段，每个第一收集器段连接用于在排气顺序序列中不相邻的气缸的分支排气通道; 多个中间排气通道分别连接到第一收集器段的下游; 以及连接中间排气通道的第二收集器段。 在发动机的高负载区域的至少中低档范围内，有效压缩比设定为大于10，点火正时延迟，排气阀的开阀时间根据 发动机转速使得在多个发动机转速范围内在气门重叠期间确保预定量的气门重叠周期，并且来自排气压力脉冲的负压波到达排气口。 这有效地减少了发动机的高负荷区域的低速和中速范围的撞击，同时通过保持压缩比高达到高扭矩。
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.031 秒)
