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61.发明申请公开(公告)号：US20060000457A1
公开(公告)日：2006-01-05
申请号：US11159275
申请日：2005-06-23
申请人： Shenquiang Huang
发明人： Shenquiang Huang
CPC分类号： F02D13/0246 , F01L1/34 , F01L13/0015 , F01L2800/00 , F02D13/0207 , F02D13/0249 , F02D41/006 , F02D2041/001 , F02D2250/36 , Y02T10/18
摘要： A method for actuating one or more exhaust valves in an internal combustion engine during positive power operation is disclosed. The expansion stroke of an engine cylinder is effectively lengthened and the exhaust stroke is effectively shortened by delaying the opening and/or advancing the closing of the exhaust valve relative to conventional exhaust valve timing during the exhaust stroke. Selective variation of the exhaust stroke during positive power operation of the engine may reduce NOx production.
摘要翻译： 公开了一种用于在正功率操作期间致动内燃机中的一个或多个排气门的方法。 发动机气缸的膨胀行程被有效地延长，并且通过在排气冲程期间相对于常规排气门正时延迟开启和/或推进排气门的关闭来有效地缩短排气冲程。 发动机正功率运行时排气冲程的选择性变化可能会降低NOx的产生。
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公开(公告)号：US20050066920A1
公开(公告)日：2005-03-31
申请号：US10952279
申请日：2004-09-28
申请人： Yasunori Daigo , Masahiro Maekawa , Toru Kawatani , Manabu Horiuchi , Satoshi Nakajima , Koichi Kawamoto
发明人： Yasunori Daigo , Masahiro Maekawa , Toru Kawatani , Manabu Horiuchi , Satoshi Nakajima , Koichi Kawamoto
CPC分类号： F02D13/0246 , F01L1/267 , F01L13/0036 , F01L2105/00 , F02D13/0211 , F02D13/0273 , F02D41/006 , F02D2041/001 , F02M26/01 , Y02T10/18
摘要： The valve drive apparatus of the invention comprises an exhaust valve drive mechanism capable of changing an open/close timing of an exhaust valve, and a control device which controls the exhaust valve drive apparatus so as to release the exhaust valve during an intake stroke, independently of an exhaust stroke, in an EGR mode. Preferably, the exhaust valve drive mechanism comprises a first exhaust cam which defines the exhaust valve releasing timing and the amount of valve lift in the exhaust stroke, and a second exhaust cam which defines the exhaust valve releasing timing and the amount of valve lift during the intake stroke. In an normal mode, the displacement of the first exhaust cam is transmitted to the exhaust valve, and in the EGR mode, the displacement of the second exhaust cam is transmitted to the exhaust valve, in addition to the displacement of the first exhaust cam.
摘要翻译： 本发明的阀驱动装置包括能够改变排气阀的打开/关闭正时的排气门驱动机构，以及控制排气门驱动装置以便在进气冲程期间独立地释放排气阀的控制装置 的排气冲程。 优选地，排气门驱动机构包括限定排气门释放正时和排气行程中的气门升程量的第一排气凸轮，以及限定排气门释放正时和第二排气凸轮中的气门升程量的第二排气凸轮 进气冲程 在正常模式中，第一排气凸轮的位移被传递到排气阀，并且在EGR模式中，除了第一排气凸轮的位移之外，第二排气凸轮的位移也被传递到排气阀。
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公开(公告)号：US20040250802A1
公开(公告)日：2004-12-16
申请号：US10660508
申请日：2003-09-12
发明人： Zhou Yang , Brian Ruggiero , Shengqiang Huang
IPC分类号： F02M025/07
CPC分类号： F02D13/0226 , F01L1/08 , F01L13/06 , F01L13/065 , F01L2800/00 , F02D13/0246 , F02D13/0253 , F02D13/0261 , F02D13/0265 , F02D13/0273 , F02D41/0047 , F02D41/006 , F02D2041/001 , F02M26/01 , Y02T10/18 , Y02T10/47
摘要： A system and method for actuating one or more engine valves to produce one or more internal exhaust gas recirculation events is disclosed. The method of the present invention is a method of providing exhaust gas recirculation (EGR) in a multi-cylinder engine, each engine cylinder having at least one engine valve, intake and exhaust manifolds, and a valve actuator. The method comprises the steps of: imparting motion to the valve actuator; actuating the engine valve of a first engine cylinder responsive to the imparted motion; determining a first and a second engine parameter level; modifying the imparted motion responsive to the level of the first engine parameter level and the second engine parameter level to produce an exhaust gas recirculation event.
摘要翻译： 公开了用于致动一个或多个发动机气门以产生一个或多个内部废气再循环事件的系统和方法。 本发明的方法是在多气缸发动机中提供废气再循环（EGR）的方法，每个发动机气缸具有至少一个发动机气门，进气歧管和排气歧管以及阀致动器。 该方法包括以下步骤：向阀致动器施加运动; 响应于所施加的运动来致动第一发动机气缸的发动机气门; 确定第一和第二引擎参数水平; 响应于第一发动机参数水平和第二发动机参数水平的水平来改变所施加的运动以产生废气再循环事件。
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公开(公告)号：US06748919B2
公开(公告)日：2004-06-15
申请号：US10041606
申请日：2002-01-10
申请人： Matsuharu Abo , Yoshiyuki Tanabe , Hiroshi Fujii , Koji Onishi , Toshio Ishii , Mamoru Fujieda
发明人： Matsuharu Abo , Yoshiyuki Tanabe , Hiroshi Fujii , Koji Onishi , Toshio Ishii , Mamoru Fujieda
IPC分类号： F02B300
CPC分类号： F02B23/104 , F02B2075/125 , F02D13/0219 , F02D13/0246 , F02D13/0261 , F02D41/402 , F02D2041/001 , F02D2041/0015 , F02D2041/389 , F02D2250/38 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/18 , Y02T10/44
摘要： In the fuel cylinder injection engine with the supercharging machine, the ignitability deteriorates because the density of the fuel at the spray center becomes excessive due to the shrinkage of the fuel spray under the supercharging. As a result, the density of the smoke and the hydrocarbon exhaust rate increase. The mixture of the fuel and the air under the supercharging is promoted by the control by TCV installed in the suction port which is a divided spray and air flow generation mechanism and the valve timing control of the suction and exhaust valve, etc.
摘要翻译： 在具有增压机的燃料缸喷射发动机中，由于喷射中心处的燃料的密度由于增压下的燃料喷雾的收缩而变得过大，所以点火性降低。 结果，烟雾密度和碳氢化合物排放速率增加。通过安装在吸入口中的TCV的控制来促进增压下的燃料和空气的混合，其是分开的喷雾和空气流产生机构， 吸气和排气阀的气门正时控制等
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65.发明申请Method for controlling the charging pressure at a turbocharged combustion engine, and a corresponding combustion engine 失效用于控制涡轮增压内燃机的充气压力的方法和相应的内燃机公开(公告)号：US20040089278A1
公开(公告)日：2004-05-13
申请号：US10473440
申请日：2003-09-30
发明人： Martin Ekenberg
IPC分类号： F02B033/00
CPC分类号： F02D13/0246 , F02B37/02 , F02B37/18 , F02D13/0257 , F02D23/00 , F02D2041/001 , Y02T10/144 , Y02T10/18
摘要： A multicylinder internal combustion engine with an exhaust-driven turbocompressor and with a divided exhaust gas flow has at least two exhaust valves (2,3) and one intake valve per cylinder. A first exhaust valve (2) is connected to a first exhaust manifold which leads to the turbine of the compressor, while a second exhaust valve (3) is connected to a second exhaust manifold which opens downstream of the turbine. The charging pressure in the engine can be regulated by virtue of the opening periods of the exhaust valves (2,3) being varied in relation to one another in order to adapt the flow through the exhaust turbine to a value which provides the desired charging pressure in the engine. By opening the second exhaust valve (3) increasingly earlier, an increasingly lower charging pressure can be achieved.
摘要翻译： 具有排气驱动的涡轮压缩机并且具有分流排气流的多缸内燃机具有至少两个排气门（2,3）和每个气缸一个进气阀。 第一排气阀（2）连接到通向压缩机的涡轮机的第一排气歧管，而第二排气阀（3）连接到在涡轮下游开口的第二排气歧管。 发动机中的充气压力可以通过相对于彼此变化的排气门（2,3）的打开周期来调节，以便使通过排气涡轮机的流量适应于提供期望的充气压力 在发动机。 通过越来越早地打开第二排气阀（3），可以实现越来越低的充气压力。
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公开(公告)号：US6435149B2
公开(公告)日：2002-08-20
申请号：US96356101
申请日：2001-09-27
申请人： TOYOTA MOTOR CO LTD
CPC分类号： F02D13/0207 , F01L1/34 , F01L13/0042 , F01L2800/00 , F01L2800/11 , F02D13/0211 , F02D13/0219 , F02D13/0226 , F02D13/0246 , F02D13/0261 , F02D13/0265 , Y02T10/18
摘要： A valve train for an internal combustion engine has a variable valve performance mechanism for changing the valve open angle of at least one set of intake valves and exhaust valves. The valve train further includes an electronic control unit (ECU) for controlling the variable valve performance mechanism and a sensor for detecting the running state of the engine. The ECU judges whether there is a malfunction in the engine based on detection signals from the sensor. If there is a malfunction in the engine, the ECU actuates the variable valve performance mechanism to decrease the valve overlap thereby performing a failsafe. The ECU also advances the closing timing of the intake valves. Alternatively, the ECU retards the opening timing of the exhaust valves.
摘要翻译： 用于内燃机的气门机构具有用于改变至少一组进气门和排气门的阀开度的可变阀性能机构。 气门机构还包括用于控制可变阀性能机构的电子控制单元（ECU）和用于检测发动机的运行状态的传感器。 ECU根据来自传感器的检测信号判断发动机是否发生故障。 如果发动机发生故障，则ECU启动可变阀性能机构以减小阀重叠，从而执行故障保护。 ECU还提前进气阀的关闭时机。 或者，ECU延迟排气门的打开正时。
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公开(公告)号：US20020017258A1
公开(公告)日：2002-02-14
申请号：US09963561
申请日：2001-09-27
IPC分类号： F01L001/34
CPC分类号： F02D13/0207 , F01L1/34 , F01L13/0042 , F01L2800/00 , F01L2800/11 , F02D13/0211 , F02D13/0219 , F02D13/0226 , F02D13/0246 , F02D13/0261 , F02D13/0265 , Y02T10/18
摘要： A valve train for an internal combustion engine has a variable valve performance mechanism for changing the valve open angle of at least one set of intake valves and exhaust valves. The valve train further includes an electronic control unit (ECU) for controlling the variable valve performance mechanism and a sensor for detecting the running state of the engine. The ECU judges whether there is a malfunction in the engine based on detection signals from the sensor. if there is a malfunction in the engine, the ECU actuates the variable valve performance mechanism to decrease the valve overlap thereby performing a failsafe. The ECU also advances the closing timing of the intake valves. Alternatively, the ECU retards the opening timing of the exhaust valves.
摘要翻译： 用于内燃机的气门机构具有用于改变至少一组进气门和排气门的阀开度的可变阀性能机构。 气门机构还包括用于控制可变阀性能机构的电子控制单元（ECU）和用于检测发动机的运行状态的传感器。 ECU根据来自传感器的检测信号判断发动机是否发生故障。 如果发动机发生故障，则ECU致动可变阀性能机构以减小阀重叠，从而执行故障保护。 ECU还提前进气阀的关闭时机。 或者，ECU延迟排气门的打开正时。
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公开(公告)号：US5450824A
公开(公告)日：1995-09-19
申请号：US185152
申请日：1994-01-24
CPC分类号： F02D13/023 , F02D13/0238 , F02D13/0246 , F02D13/0249 , F02D13/0261 , F02D13/0269 , F02D15/04 , F02D2041/001 , Y02T10/12 , Y02T10/142
摘要： An internal combustion engine has an intake valve and an exhaust valve. When the engine operates at low speed with low and medium load, the intake valve is operated to close at a relatively advanced timing for increased volumetric effeciency and increased real compression ratio. When the engine operates at low speeds with high load, the exhaust valve is operated to close at a relatively retarded timing with the intake valve being operated to close at the relatively advanced timing, whereby the volumetric efficiency is subject to a drop to prevent occurrence of knocking.
摘要翻译： 内燃机具有进气门和排气阀。 当发动机在中低负载下低速运行时，进气阀在相对较高的时间运行以关闭以提高容积效率和增加的实际压缩比。 当发动机在高负载下低速运转时，排气阀在相对延迟的时机运行，使进气阀在相对较高的时间运转而关闭，由此容积效率会下降，以防发生 敲门
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公开(公告)号：US4424790A
公开(公告)日：1984-01-10
申请号：US377142
申请日：1982-05-11
申请人： Remi Curtil
发明人： Remi Curtil
IPC分类号： F01L1/08 , F02B3/06 , F02B29/08 , F02B75/02 , F02D13/02 , F02D23/00 , F02M23/08 , F02M25/07 , F02M25/06
CPC分类号： F02D13/0215 , F01L1/08 , F02B29/08 , F02D13/0246 , F02D13/0261 , F02D13/0269 , F02D13/0273 , F02B2075/027 , F02B2275/32 , F02B3/06 , Y02T10/142 , Y02T10/146
摘要： The invention relates to a method and a device for improving the efficiency of a four-stroke-cycle internal combustion engine. The main purpose of the invention is to obtain an effective compression ratio that is capable of automatic variation without introducing additional elements whatever the load, but only by adapting the engine cycle timing diagram. Said timing diagram includes an overlap stage between the lifts of at least one exhaust valve and at least one intake valve, said intake valve being closed near or before the bottom dead center of the piston, and said exhaust valve being closed beyond the instant of fixed closing of the intake valve.
摘要翻译： 本发明涉及一种用于提高四冲程循环内燃机的效率的方法和装置。 本发明的主要目的是获得一种有效的压缩比，其能够在不引入附加元件的情况下自动变化，而不管是通过适应发动机循环时序图。 所述时序图包括至少一个排气阀的升降机与至少一个进气门之间的重叠台，所述进气门在活塞的下止点附近或之前关闭，并且所述排气门被关闭超过固定时刻 关闭进气阀。
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公开(公告)号：US11725562B2
公开(公告)日：2023-08-15
申请号：US17093446
申请日：2020-11-09
CPC分类号： F01N3/22 , F01N3/306 , F01N3/32 , F02D13/0246 , F02D41/025 , F01N2900/0601 , F01N2900/1402 , F01N2900/1404 , F02D2200/0802
摘要： Methods and systems are provided for reducing emissions during an engine cold start. In one example, a method may include, during emission control device heating, injecting heated air into an exhaust runner of each cylinder of the engine during an exhaust stroke of the corresponding cylinder, after a blowdown exhaust pulse. In this way, an amount of hydrocarbons in feedgas provided to the emission control device prior to the emission control device reaching its light-off temperature may be reduced.
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