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公开(公告)号：US06240724B1
公开(公告)日：2001-06-05
申请号：US09365722
申请日：1999-08-03
IPC分类号： F01N300
CPC分类号： F02D41/402 , F01N3/2006 , F02B2075/125 , F02D41/024 , F02D41/3023 , F02D41/401 , F02D2041/389 , F02M45/02 , Y02T10/123 , Y02T10/26 , Y02T10/44
摘要： A control device for a direct injection engine having a catalyst provided in an exhaust passage for converting exhaust gases and an injector for injecting fuel directly into a combustion chamber, includes a temperature state identifier for judging the temperature state of the catalyst, a load condition detector for sensing engine load conditions, and a fuel injection controller for controlling fuel injection from the injector. The fuel injection controller performs quick light-off control operation by causing the injector to inject fuel in one-time injection mode during a compression stroke in a specific low-load operating range of the engine when the catalyst is in its unheated state where its temperature is below its activation temperature, and switching the mode of fuel injection to intake-compression stroke split injection mode in a specific high-load operating range of the engine.
摘要翻译： 一种用于直接喷射发动机的控制装置，其具有设置在用于转换废气的排气通道中的催化剂和用于将燃料直接喷射到燃烧室中的喷射器，包括用于判断催化剂的温度状态的温度状态标识符，负载条件检测器 用于感测发动机负载条件，以及用于控制来自喷射器的燃料喷射的燃料喷射控制器。 燃料喷射控制器通过在发动机的特定低负荷运行范围内的压缩冲程期间使喷射器以一次喷射模式喷射燃料来执行快速熄灯控制操作，当催化剂处于其未加热状态时，其温度 低于其启动温度，并且在发动机的特定高负载运行范围内将燃料喷射模式切换到进气压缩冲程分流喷射模式。
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公开(公告)号：US6067954A
公开(公告)日：2000-05-30
申请号：US162498
申请日：1998-09-29
IPC分类号： F02B17/00 , F02B23/10 , F02B75/12 , F02D41/02 , F02D41/04 , F02D41/10 , F02D41/30 , F02D41/34 , F02D41/40 , F02M61/14 , F02M69/04
CPC分类号： F02D41/402 , F02D41/10 , F02D41/3023 , F02D41/3029 , F02M69/045 , F02B2075/125 , F02B23/101 , F02D2041/389 , Y02T10/123 , Y02T10/44
摘要： A direct injection engine including an injector disposed in an upper portion of a combustion chamber defined above a piston disposed in a cylinder of the engine with a fuel injecting direction of the injector being provided so that a fuel being injected toward a top portion of the piston, an ignition plug disposed at an upper portion of the combustion chamber, an engine operating condition detector for detecting an engine operating condition. The fuel is injected in a compression stroke from the injector when it is detected by the engine operating condition detector that the engine is in a low engine load and speed zone so as to stratify an injected air fuel mixture around the ignition plug to accomplish a stratified combustion. The engine further includes a fuel controller for controlling an fuel injection so as to inject the fuel plural times into the combustion chamber in a compression stroke when at least one of an engine load and an engine speed is relatively high in an engine operating zone for accomplishing the stratified combustion. A stable combustion is accomplished to improve the fuel consumption efficiency.
摘要翻译： 一种直喷式发动机，其包括设置在燃烧室的上部中的喷射器，所述喷射器设置在设置在发动机的气缸中的活塞的上方，燃料喷射方向被设置成使得燃料朝向活塞的顶部喷射 设置在燃烧室的上部的火花塞，用于检测发动机工作状态的发动机运转状态检测器。 当发动机工作条件检测器检测到发动机处于低发动机负载和速度区域时，燃料在压缩行程中从喷射器喷射，以便将注入的空气燃料混合物分层在火花塞周围以完成分层 燃烧。 发动机还包括燃料控制器，用于在发动机运转区域内的发动机负荷和发动机转速中的至少一个相对较高的压缩行程中将燃料喷射多次喷入到燃烧室中的燃料喷射控制装置， 分层燃烧。 实现稳定的燃烧以提高燃料消耗效率。
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公开(公告)号：US08677957B2
公开(公告)日：2014-03-25
申请号：US12853595
申请日：2010-08-10
申请人： Tsuyoshi Goto , Hidetoshi Kudou , Masami Nishida
发明人： Tsuyoshi Goto , Hidetoshi Kudou , Masami Nishida
CPC分类号： F02D41/0002 , F02B2075/125 , F02D13/0219 , F02D13/0269 , F02D15/04 , F02M26/13 , Y02T10/123 , Y02T10/142 , Y02T10/42
摘要： There is provided, in one aspect of the present description, an internal combustion engine system. In one example, the system comprises a controller configured to control an intake valve closing timing varying mechanism to vary a closing timing of the intake valve to regulate air charged in a combustion chamber in accordance with engine operating conditions and, in a first engine operating condition where a least volume of air is required to be charged into the combustion chamber, retard a closing timing of the intake valve to a most retarded crank angle which is after bottom dead center during a cylinder cycle and satisfies the following formulas: α≧−0.2685×ε02+10.723×ε0+15.815 and ε0≧11.0, where α is the most retarded crank angle and ε0 is a geometric compression ratio of the engine.
摘要翻译： 在本说明书的一个方面，提供一种内燃机系统。 在一个示例中，该系统包括控制器，该控制器被配置为控制进气门关闭正时改变机构以改变进气门的关闭正时，以根据发动机运行状况调节在燃烧室中充入的空气，并且在第一发动机运行状态 其中需要将最少体积的空气装入燃烧室中，将进气门的关闭正时延迟到在汽缸循环内处于下死点之后的最大延迟曲柄角，并且满足以下公式：α≥-0.0685 ×＆egr; 02 + 10.723×＆egr; 0 + 15.815和＆egr;0≥11.0，其中α是最大延迟的曲柄角，＆egr; 0是发动机的几何压缩比。
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公开(公告)号：US20110094473A1
公开(公告)日：2011-04-28
申请号：US12907394
申请日：2010-10-19
IPC分类号： F02M61/14
CPC分类号： F02B23/104 , Y02T10/125
摘要： Provided is a spark-ignition internal combustion engine capable of ensuring engine output power while setting a geometric compression ratio of an engine body to a high value. In the spark-ignition internal combustion engine, each of a clearance between a top surface (3a) of a piston (3) located at a top dead center position and a lower surface (8a) of each of two intake valves (8) in a full-closed state, and a clearance between the top surface (3a) of the piston (3) located at the top dead center position and a lower surface (9a) of each of two exhaust valves (9) in a full-closed state, is set to 5 mm or more, and a stroke length S of the piston (3) is set to satisfy the following relation: S≦0.977×B+18.2, where B is a bore diameter of a cylinder.
摘要翻译： 提供一种能够在将发动机主体的几何压缩比设定为高值的同时确保发动机输出功率的火花点火式内燃机。 在火花点火式内燃机中，位于上止点位置的活塞（3）的上表面（3a）和两个进气门（8）中的每一个的下表面（8a）之间的间隙中的每一个在 全闭合状态和位于上死点位置的活塞（3）的顶表面（3a）与两个排气门（9）中的每一个的下表面（9a）之间的间隙处于全封闭状态 状态设定为5mm以上，将活塞（3）的行程长度S设定为满足以下关系：S＆lt; ll; 0.977×B + 18.2，其中B是气缸的孔径。
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公开(公告)号：US20110041786A1
公开(公告)日：2011-02-24
申请号：US12853595
申请日：2010-08-10
申请人： Tsuyoshi Goto , Hidetoshi Kudou , Masami Nishida
发明人： Tsuyoshi Goto , Hidetoshi Kudou , Masami Nishida
CPC分类号： F02D41/0002 , F02B2075/125 , F02D13/0219 , F02D13/0269 , F02D15/04 , F02M26/13 , Y02T10/123 , Y02T10/142 , Y02T10/42
摘要： There is provided, in one aspect of the present description, an internal combustion engine system. In one example, the system comprises a controller configured to control an intake valve closing timing varying mechanism to vary a closing timing of the intake valve to regulate air charged in a combustion chamber in accordance with engine operating conditions and, in a first engine operating condition where a least volume of air is required to be charged into the combustion chamber, retard a closing timing of the intake valve to a most retarded crank angle which is after bottom dead center during a cylinder cycle and satisfies the following formulas: α≧−0.2685×ε02+10.723×ε0+15.815 and ε0≧11.0, where α is the most retarded crank angle and ε0 is a geometric compression ratio of the engine.
摘要翻译： 在本说明书的一个方面，提供一种内燃机系统。 在一个示例中，该系统包括控制器，该控制器被配置为控制进气门关闭正时改变机构以改变进气门的关闭正时，以根据发动机运行状况调节在燃烧室中充入的空气，并且在第一发动机运行状态 其中需要将最少体积的空气装入燃烧室中，将进气门的关闭正时延迟到在汽缸循环内处于下死点之后的最大延迟曲柄角，并且满足以下公式：α≥-0.0685 ×＆egr; 02 + 10.723×＆egr; 0 + 15.815和＆egr;0≥11.0，其中α是最大延迟的曲柄角，＆egr; 0是发动机的几何压缩比。
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公开(公告)号：US5873344A
公开(公告)日：1999-02-23
申请号：US67286
申请日：1998-04-27
IPC分类号： F02B23/08 , F02B17/00 , F02B23/10 , F02B31/00 , F02B31/08 , F02B75/12 , F02D41/02 , F02D45/00 , F02F1/24 , F02F1/42 , F02F3/26 , F02B31/06
CPC分类号： F02F3/26 , F02B17/005 , F02B23/104 , F02B31/08 , F02B31/085 , F02B2023/106 , F02B2023/108 , F02B2031/006 , F02B2075/125 , F02B2275/18 , F02B2275/48 , F02F1/4214 , F02F2001/241 , F02F2001/245 , Y02T10/12 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A direct injection ignition engine includes a piston with a cavity on a top surface thereof, an injector arranged at a peripheral portion of a combustion chamber to be faced to the combustion chamber for injecting a fuel directly into the combustion chamber, an ignition plug arranged to be projected to the combustion chamber for igniting the fuel introduced into the combustion chamber, an intake passage connected to the combustion chamber for introducing an intake air to the combustion chamber, intake air flow control valve arranged in the intake passage for controlling an intake air flow of an inclined vortex including a tumble component and swirl component produced in the combustion chamber, an actuator for driving the control valve, engine load detecting sensor for detecting an engine load, engine speed detecting sensor for detecting an engine speed, fuel supply controller, based on the output signals from the engine load detecting sensor and the engine speed detecting sensor, for producing control signals for the injector which include a fuel injection amount and fuel injection timing in a compression stroke for accomplishing a stratified combustion condition in which an air fuel mixture with an air fuel ratio greater than a theoretical one is concentrated around the ignition plug when an operating condition is in at least a low engine load and low engine speed condition, and, the fuel injection amount and fuel injection timing in an intake stroke for accomplishing a uniform combustion condition in which an air fuel mixture with an air fuel ratio greater than a theoretical one is uniformly and entirely dispersed in the combustion chamber when the operating condition is at least in a condition beyond said low engine load and engine speed condition with regard to the engine load and engine speed, and, producing control signals for the actuator to produce the inclined vortex of the air fuel mixture in the operating condition from the stratified combustion condition to the uniform combustion condition.
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公开(公告)号：US08820292B2
公开(公告)日：2014-09-02
申请号：US12907394
申请日：2010-10-19
IPC分类号： F02F3/26
CPC分类号： F02B23/104 , Y02T10/125
摘要： Provided is a spark-ignition internal combustion engine capable of ensuring engine output power while setting a geometric compression ratio of an engine body to a high value. In the spark-ignition internal combustion engine, each of a clearance between a top surface (3a) of a piston (3) located at a top dead center position and a lower surface (8a) of each of two intake valves (8) in a full-closed state, and a clearance between the top surface (3a) of the piston (3) located at the top dead center position and a lower surface (9a) of each of two exhaust valves (9) in a full-closed state, is set to 5 mm or more, and a stroke length S of the piston (3) is set to satisfy the following relation: S≦0.977×B+18.2, where B is a bore diameter of a cylinder.
摘要翻译： 提供一种能够在将发动机主体的几何压缩比设定为高值的同时确保发动机输出功率的火花点火式内燃机。 在火花点火式内燃机中，位于上止点位置的活塞（3）的上表面（3a）和两个进气门（8）中的每一个的下表面（8a）之间的间隙中的每一个在 全闭合状态和位于上死点位置的活塞（3）的顶表面（3a）与两个排气门（9）中的每一个的下表面（9a）之间的间隙处于全封闭状态 状态设定为5mm以上，将活塞（3）的行程长度S设定为满足以下关系：S＆lt; ll; 0.977×B + 18.2，其中B是气缸的孔径。
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