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    • 1. 发明专利
    • Device for controlling variable compression ratio internal combustion engine
    • 用于控制可变压缩比内部燃烧发动机的装置
    • JP2012193635A
    • 2012-10-11
    • JP2011056659
    • 2011-03-15
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAHASHI EIJIKAMATA SHINOBU
    • F02D15/02F01L13/00F02B67/06F02B75/04F02B75/32F02D13/02
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To avoid interference between an intake/exhaust valve and a piston due to elongation of a timing chain, and to suppress decrease in operation performance without generating knocking.SOLUTION: A control device includes a variable compression ratio mechanism changing an engine compression ratio in accordance with an engine operating condition by changing a top dead center position of a piston. An elongation amount (dL) of a timing chain is estimated on the basis of a rotation phase difference between a crankshaft and camshaft. A target compression ratio (tCR) is corrected in accordance with the elongation amount (dL) of the timing chain. In contrast to a case when the elongation amount of the chain is small (A), when the elongation amount of the chain is large (B), the target compression ratio is corrected to the increase side so that decrease in torque is compensated in a region A at a low rotation high torque side. In a region C at a high rotation side and a low load side, the target compression ratio is corrected to a lower side to avoid interference between the intake/exhaust valve and the piston, and the generation of knocking is suppressed.
    • 要解决的问题:为了避免由于正时链的伸长引起的进/排气门和活塞之间的干扰,并且抑制运行性能的降低而不产生爆震。 解决方案:控制装置包括可变压缩比机构,通过改变活塞的上止点位置来改变发动机运行状态下的发动机压缩比。 基于曲轴和凸轮轴之间的旋转相位差来估计正时链的伸长量(dL)。 目标压缩比(tCR)根据正时链的伸长量(dL)进行校正。 与链条的伸长量小(A)的情况相反,当链条的伸长量大(B)时,将目标压缩比校正为增加侧,使得扭矩的降低在 区域A处于低旋转高扭矩侧。 在高旋转侧和低负载侧的区域C中,将目标压缩比校正到下侧以避免进/排气门和活塞之间的干扰,并且抑制了爆震的产生。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Controller for internal combustion engine
    • 内燃机控制器
    • JP2011241764A
    • 2011-12-01
    • JP2010114850
    • 2010-05-19
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAHASHI EIJIKAMATA SHINOBUHIYOSHI RYOSUKE
    • F02D15/02F02B75/04F02B75/32
    • PROBLEM TO BE SOLVED: To provide a controller for an internal combustion engine which controller achieves an improvement in fuel consumption and power output performance while taking into consideration fluctuation of an actual compression ratio to a target compression ratio (compression ratio fluctuation).SOLUTION: A fluctuation range of an actual compression ratio from a specific target compression ratio (compression ratio fluctuation range) is not always optimum. For this reason, when an engine is operated with a compression ratio kept almost constant, an actuator 15 that drives a variable compression ratio mechanism is controlled so that the maximum of a deviation between the target compression ratio and the actual compression ratio changes depending on an operation status of the engine. Specifically, the fluctuation range of the actual compression ratio to the specific target compression ratio (compression ratio fluctuation range) is changed depending on the operation status of the engine to achieve an improvement in fuel consumption and power output.
    • 要解决的问题:为了提供一种用于内燃机的控制器,其控制器在考虑到实际压缩比的波动与目标压缩比(压缩比变动)的同时,实现燃料消耗和功率输出性能的提高。 解决方案:从特定目标压缩比(压缩比变动范围)的实际压缩比的波动范围并不总是最佳。 因此,当发动机以几乎保持不变的压缩比运行时,控制驱动可变压缩比机构的致动器15,使得目标压缩比与实际压缩比之间的偏差的最大值根据 发动机的运行状态。 具体而言,实际压缩比与特定目标压缩比(压缩比变动范围)的波动范围根据发动机的运转状态而变化,以实现燃料消耗和功率输出的提高。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Stratified charge, compression and ignition type engine and control device of engine
    • 发动机的分段充气,压缩和点火型发动机和控制装置
    • JP2010285969A
    • 2010-12-24
    • JP2009142378
    • 2009-06-15
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAHASHI EIJIASHIDA KOICHINAGAMINE MORIHIRO
    • F02D41/02F02D15/02F02D21/08
    • PROBLEM TO BE SOLVED: To provide a cylinder direct injection type engine capable of inhibiting the emission of both NOx and unburnt CO even if stratified charge, compression and self-ignition combustion is performed. SOLUTION: The engine includes a fuel injection valve 31 directly injecting fuel into a combustion chamber 21, uses the fuel injected from the fuel injection valve 31 to form a stratified mixture, and allows the ignition of partial fuel in the stratified mixture within a predetermined equivalent ratio after a partial fuel concentration in the stratified mixture is diluted to a first equivalent ratio which is a limit value for not generating a large quantity of NOx and before the partial fuel concentration in the stratified mixture is diluted to a second equivalent ratio which is a limit value for not generating a large quantity of CO. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使进行分层充气,压缩和自燃燃烧,也能够提供能够抑制NOx和未燃烧CO的排放的气缸直接喷射型发动机。 解决方案:发动机包括将燃料直接喷射到燃烧室21中的燃料喷射阀31,使用从燃料喷射阀31喷射的燃料形成分层混合物,并允许在分层混合物内点燃部分燃料 将分层混合物中的部分燃料浓度之后的预定当量比稀释至作为不产生大量NOx的极限值的第一当量比,并且将分层混合物中的部分燃料浓度稀释至第二当量比 这是不产生大量CO的极限值。版权所有(C)2011年,JPO&INPIT
    • 4. 发明专利
    • Intake air control device for internal combustion engine
    • 内燃机空气控制装置
    • JP2010138869A
    • 2010-06-24
    • JP2008318058
    • 2008-12-15
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAHASHI EIJINODA TORUEMI MASAHIKOKASAI MICHIHARU
    • F02D21/02F02B47/06F02D21/00
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To supply nitrogen-rich gas or oxygen-rich gas to a combustion chamber by a simple structure.
      SOLUTION: This intake air control device includes an accumulator 31 having a first accumulation chamber 311 and a second accumulation chamber 312 partitioned by an oxygen permeating film 313 that selectively allows oxygen to permeate therethrough, a communication passage 32 for communicating the first accumulation chamber 311 of the accumulator 31 with a combustion chamber 213 of the internal combustion engine 2, an opening and closing valve 33 for opening and closing the communication passage 32, and a control means for controlling opening and closing of the opening and closing valve 33 according to the accumulation state of gas in the first accumulation chamber 311.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过简单的结构将富氮气体或富氧气体供应到燃烧室。 解决方案:该进气控制装置包括具有第一积聚室311和由选择性地允许氧气渗透通过的氧气渗透膜313隔开的第二积聚室312的蓄液器31,用于将第一积聚物 蓄能器31的室311具有内燃机2的燃烧室213,用于打开和关闭连通通道32的开闭阀33,以及用于控制开关阀33的打开和关闭的控制装置, 对于第一蓄积室311中的气体的累积状态。(C)2010年,JPO和INPIT
    • 5. 发明专利
    • Engine
    • 发动机
    • JP2010001865A
    • 2010-01-07
    • JP2008163355
    • 2008-06-23
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAHASHI EIJISHIRAISHI TAISUKEURUSHIBARA TOMONORI
    • F02B1/14F02B23/02F02B23/06F02D13/02
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To provide an engine capable of enhancing an ignitability improving effect. SOLUTION: The engine supplied with radicals in a combustion chamber is provided with: an intake valve 31 for opening/closing an intake port 30; a valve-timing adjusting device 200 for adjusting valve timing of the intake valve 31; a discharge unit 50 including a first electrode 51, a dielectric element 53 covering the first electrode 51, and a second electrode 52 arranged at a position to face the dielectric element 53, and constituted such that a discharge chamber 55 formed between the second electrode 52 and the dielectric element 53 faces a combustion chamber 13, thereby to generate an unbalanced plasma discharge in the discharge chamber 55; a voltage applying means 60 for applying voltage to the discharge unit 50 so that the radicals can be produced in the discharge chamber by the unbalanced plasma discharge; and a controller 70 for controlling the valve-timing adjusting device 200 so that an intake valve closing period for closing the intake valve 31 can be provided during the downward movement of the piston from an exhaust top dead center to an intake bottom dead center, thereby to diffuse the radicals in the discharge chamber into the combustion chamber. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供能够提高点火性提高效果的发动机。 解决方案:在燃烧室中提供自由基的发动机设有:用于打开/关闭进气口30的进气门31; 用于调节进气门31的气门正时的气门正时调节装置200; 排出单元50,包括第一电极51,覆盖第一电极51的电介质元件53和布置在与电介质元件53相对的位置处的第二电极52,并且构造成使得形成在第二电极52之间的排出室55 并且电介质元件53面向燃烧室13,从而在排出室55中产生不平衡的等离子体放电; 用于向放电单元50施加电压使得能够通过不平衡等离子体放电在放电室中产生自由基的电压施加装置60; 以及控制器70,其用于控制​​气门正时调节装置200,使得在活塞从排气上止点向下进入下死点的向下运动期间能够设置用于关闭进气门31的进气门关闭时段,从而 以将排放室中的自由基扩散到燃烧室中。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Combustion control device of internal combustion engine
    • 内燃机燃烧控制装置
    • JP2009036068A
    • 2009-02-19
    • JP2007200591
    • 2007-08-01
    • Nissan Motor Co Ltd日産自動車株式会社
    • SHIRAISHI TAISUKEKAKUHO AKIHIKOTAKAHASHI EIJINAGAMINE MORIHIRO
    • F02B19/12F02B19/16F02D13/02F02D15/00F02D21/08F02D41/04F02D45/00F02M25/07F02P3/01F02P13/00F02P23/04
    • F02P23/045
    • PROBLEM TO BE SOLVED: To improve combustion stability by generating a large volume of plasma in an auxiliary combustion chamber with small energy consumption.
      SOLUTION: This combustion control device of an internal combustion engine comprises a main combustion chamber 1, the auxiliary combustion chamber 12 formed adjacent to the main combustion chamber 1 and smaller in volume than the main combustion chamber 1, a partition wall 19 for forming the auxiliary combustion chamber 12, a nozzle hole 20 formed at the partition wall 19 and allowing the main combustion chamber 1 to communicate with the auxiliary combustion chamber 12, an ignition plug 13 installed in the auxiliary combustion chamber 12, and a magnetic field intensity reinforcing means 16 for reinforcing magnetic field intensity in the auxiliary combustion chamber 12. When an air-fuel mixture is ignited, the magnetic field intensity around the discharge gap 13a of the ignition plug 13 is enhanced by the magnetic field reinforcing means 16 at least during the discharge of the ignition plug 13.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过在能量消耗小的辅助燃烧室中产生大量的等离子体来提高燃烧稳定性。 解决方案:内燃机的燃烧控制装置包括主燃烧室1,邻近主燃烧室1形成的辅助燃烧室12,并且体积小于主燃烧室1的分配壁19, 形成辅助燃烧室12,形成在分隔壁19处并允许主燃烧室1与辅助燃烧室12连通的喷嘴孔20,安装在辅助燃烧室12中的火花塞13和磁场强度 用于增强辅助燃烧室12中的磁场强度的加强装置16.当空燃混合物被点燃时,至少在磁场增强装置16期间通过磁场增强装置16增强火花塞13的放电间隙13a周围的磁场强度 点火插头13的放电。(C)2009,JPO&INPIT
    • 7. 发明专利
    • Ignition device of internal combustion engine
    • 内燃机点火装置
    • JP2008121462A
    • 2008-05-29
    • JP2006304146
    • 2006-11-09
    • Nissan Motor Co Ltd日産自動車株式会社
    • KAKUHO AKIHIKOSHIRAISHI TAISUKETAKAHASHI EIJI
    • F02P9/00F02D45/00F02P3/01F02P13/00F02P23/04H01T13/50H01T19/04
    • PROBLEM TO BE SOLVED: To balance improvement of fuel efficiency in a partial load with securement of operability in a high load by setting a combustion speed suitable for an operating condition.
      SOLUTION: This ignition device of an internal combustion engine is provided with: a first ignition means 9 igniting an air-fuel mixture in a cylinder by corona discharge; a second ignition means 9 igniting the air-fuel mixture in the cylinder by arc discharge; and a determination means 16 determining, based on an operating condition of the engine, whether the internal combustion engine is in a state where quick combustion is required or in a state where the quick combustion should be avoided. When the determination means 16 determines that the internal combustion engine is in the state where quick combustion is required, positive ignition is executed by using the first ignition means 9, and when it determines that the internal combustion engine is in the state where the quick combustion should be avoided, local ignition is executed by using the second ignition means 9.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过设定适合于操作条件的燃烧速度,通过确保高负载下的可操作性来平衡部分负载中的燃料效率的提高。 解决方案:内燃机的点火装置设有:第一点火装置9,通过电晕放电点燃气缸中的空气燃料混合物; 第二点火装置9通过电弧放电点燃气缸中的空气燃料混合物; 以及基于发动机的运行状态来确定内燃机是否处于需要快速燃烧或者应该避免快速燃烧的状态的确定装置16。 当确定装置16确定内燃机处于需要快速燃烧的状态时,通过使用第一点火装置9来执行正点火,并且当确定内燃机处于快速燃烧状态时 应避免使用第二个点火装置9进行本地点火。版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Auxiliary-chamber type internal combustion engine
    • 辅助型室内燃油发动机
    • JP2007247420A
    • 2007-09-27
    • JP2006067952
    • 2006-03-13
    • Nissan Motor Co Ltd日産自動車株式会社
    • TERACHI ATSUSHITAKAHASHI EIJI
    • F02B19/18F02B19/12F02F1/24
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To provide an auxiliary-chamber type internal combustion engine capable of reducing a cooling loss, by restraining the deterioration in fuel economy.
      SOLUTION: This auxiliary-chamber type internal combustion engine 100 has a main combustion chamber 63, an auxiliary-combustion chamber 161 and communicating passages 162a to 162d. The auxiliary-combustion chamber 161 is adjacent to the main combustion chamber 63. The communicating passages 162a to 162d change flames F101a to F101d in a shorter shape in the direction parallel to the cylinder axis CA than the direction along a surface vertical to the cylinder axis CA. The flames F101a to F101d are a flame injected into the main combustion chamber 63 from the auxiliary-combustion chamber 161.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过抑制燃料经济性的劣化,提供能够降低冷却损失的辅助室型内燃机。 解决方案:该辅助室型内燃机100具有主燃烧室63,辅助燃烧室161和连通通路162a至162d。 辅助燃烧室161与主燃烧室63相邻。连通通道162a至162d沿垂直于气缸轴线的方向的方向将火焰F101a至F101d沿与气缸轴线CA平行的方向更短的形状 CA. 火焰F101a至F101d是从辅助燃烧室161喷射到主燃烧室63中的火焰。版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Fuel supply device of internal combustion engine
    • 内燃机燃油供应装置
    • JP2007231937A
    • 2007-09-13
    • JP2007024565
    • 2007-02-02
    • Nissan Motor Co LtdYasushi Sekine日産自動車株式会社泰 関根
    • HOTTA ISAMUKUBO MASAAKITAKAHASHI EIJIASHIDA KOICHISEKINE YASUSHI
    • F02M27/02F02D19/06F02D19/08F02D41/02
    • Y02T10/36
    • PROBLEM TO BE SOLVED: To provide a fuel supply device of an internal combustion engine which makes possible an arbitrary change in a formation ratio of high-octane-value fuel (isomerization fuel) to high-combustion-speed fuel (decomposition fuel). SOLUTION: Isomerization reforming and decomposition reforming are provided to the feed fuel to the internal combustion engine 1 by a reforming catalyst 6. Each of the fuel injectors 27, 33, 35 separately supplies main fuel, the isomerization fuel formed by the isomerization reforming, and the decomposition fuel formed by the decomposition reforming to the internal combustion engine 1. The ratio of the isomerization reforming to the decomposition reforming depends on the temperature of the reforming catalyst 6. Then the amount of fuel supply to the reforming catalyst 6 is adjusted by an fuel injector 8, and the amount of supply air is adjusted by an air-volume-control valve 14. Thus, the temperature of the catalyst is controlled, and the formation ratio of the isomerization fuel to the decomposition fuel is changed. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种内燃机的燃料供给装置,其能够将高辛烷值燃料(异构化燃料)与高燃烧速度燃料(分解燃料)的形成比例任意变化 )。 解决方案:通过重整催化剂6向内燃机1的进料燃料提供异构化重整和分解重整。每个燃料喷射器27,33,35分别供应主要燃料,通过异构化形成的异构化燃料 重整和通过分解重整而形成的分解燃料。内燃机1的异构化重整与分解重整的比例取决于重整催化剂6的温度。然后,向重整催化剂6供应的燃料量为 通过燃料喷射器8调节,并且通过空气量控制阀14调节供给空气量。因此,控制催化剂的温度,并且改变异构化燃料与分解燃料的形成比。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2007032453A
    • 2007-02-08
    • JP2005218234
    • 2005-07-28
    • Nissan Motor Co Ltd日産自動車株式会社
    • NODA TORUHOTTA ISAMUASHIDA KOICHITAKAHASHI EIJI
    • F02M21/02F02B19/10F02B33/00F02B37/00F02B37/04F02M27/02
    • Y02T10/125Y02T10/144Y02T10/32
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine stably supplying gas fuel into a combustion chamber without consuming the shaft output of the engine. SOLUTION: The internal combustion engine 1 comprises a main combustion chamber 63 and a sub combustion chamber 61, and a fuel supply mechanism 70. The fuel supply mechanism 70 supplies fuel into the main combustion chamber 63 and the sub combustion chamber 61. The fuel supply mechanism 70 consists of a first compressor 71, a fuel reformer 72, and a first turbine 74. The first compressor 71 compresses first gas. The first gas contains fresh air. The fuel reformer 72 uses part of the first gas compressed by the first compressor 71 for reforming part of liquid fuel with exothermic reaction to produce gas fuel. The first turbine 74 uses heat energy generated by the exothermic reaction to drive the first compressor 71. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种将燃料燃料稳定地供应到燃烧室中的内燃机,而不消耗发动机的轴输出。 解决方案:内燃机1包括主燃烧室63和副燃烧室61以及燃料供给机构70.燃料供给机构70将燃料供应到主燃烧室63和副燃烧室61中。 燃料供给机构70包括第一压缩机71,燃料重整器72和第一涡轮74.第一压缩机71压缩第一气体。 第一种气体含有新鲜空气。 燃料重整器72使用由第一压缩机71压缩的第一气体的一部分用于通过放热反应重整部分液体燃料以产生气体燃料。 第一涡轮74使用由放热反应产生的热能来驱动第一压缩机71.版权所有:(C)2007,JPO&INPIT