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    • 3. 发明专利
    • Spark ignition type internal combustion engine
    • 火花点火型内燃机
    • JP2011001962A
    • 2011-01-06
    • JP2010224570
    • 2010-10-04
    • Mazda Motor Corpマツダ株式会社
    • NISHIMOTO TOSHIROWATANABE NAOYANAGATSU KAZUHIROABE HIROAKI
    • F02B23/10F02F3/26
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To sufficiently enhance flame propagation characteristics with a geometric compression ratio of 13 or greater, and to reduce fuel consumption, in an spark ignition type internal combustion engine having 0.3 liter or greater of a single chamber volume of a cylinder.SOLUTION: In a virtual sphere having its center at a spark point of an ignition plug 11, when the radius is set so that the virtual sphere is brought into contact with a spherical inner surface of a recess part 32 when the piston 3 is at a top dead center, the recess part 32 is formed to satisfy the expression of V21/V1≤0.37, wherein a volume of non-interfering part of the virtual sphere is V21 when the piston 3 is at a top dead center. In the virtual sphere having its center at the spark point of the ignition plug 11, when the radius is set so that a volume V22 of the non-interfering part of the virtual sphere while the piston 3 is at the top dead center satisfies the expression of V22=0.15×V1, a combustion chamber 5 is formed to satisfy the expression of S/V22≤0.12 mm, wherein an area of an interfering surface where the virtual sphere interferes with an inner wall of the combustion chamber is S (mm).
    • 要解决的问题:在具有单缸体积为0.3升或更大的火花点火式内燃机中,为了充分提高几何压缩比为13以上的火焰传播特性,并降低燃料消耗。 :在其中心位于火花塞11的火花点的虚拟球体中,当半径被设定为使得当活塞3处于顶部时虚拟球体与凹部32的球形内表面接触 凹部32形成为满足V21 /V1≤0.37的表达式,其中当活塞3处于上止点时,虚拟球的非干扰部分的体积为V21。 在其中心处于火花塞11的火花点的虚拟球体中,当半径被设定为使得当活塞3处于上止点时虚拟球体的非干扰部分的体积V22满足表达式 的V22 = 0.15×V1,形成满足S /V22≤0.12mm的表示的燃烧室5,其中虚拟球体与燃烧室的内壁干涉的干涉面的面积为S(mm) 。
    • 4. 发明专利
    • Direct-injection engine
    • 直喷式发动机
    • JP2010236466A
    • 2010-10-21
    • JP2009086952
    • 2009-03-31
    • Mazda Motor Corpマツダ株式会社
    • HITOMI MITSUOYAMAKAWA MASANAONISHIMOTO TOSHIROYOUSO TAKASHIARAKI KEIJI
    • F02D41/02F02B3/06F02D41/38
    • Y02T10/12Y02T10/128
    • PROBLEM TO BE SOLVED: To improve fuel efficiency by compressive self-ignition combustion and the effect of reducing NOx.
      SOLUTION: This direct-injection engine includes a multi-nozzle hole injector 10 having a plurality of nozzle holes at the tip. An HCCI zone A for combustion due to compressive self-ignition is set in at least a part of the operating zones of the engine. In the HCCI zone A, an effective compression ratio is set to approximately 15 or higher, and the injection pressure of the fuel from the injector is set to 50 MPa or higher. A divided injection for injecting the fuel at multiple timings including during the compression stroke is performed in a predetermined load region in the HCCI zone A.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过压缩自点火燃烧提高燃油效率和减少NOx的效果。 解决方案:该直喷式发动机包括在尖端具有多个喷嘴孔的多喷嘴孔喷射器10。 用于由压缩自点火燃烧的HCCI区域A设置在发动机的至少一部分操作区域中。 在HCCI区域A中,将有效压缩比设定为大约15以上,将来自喷射器的燃料的喷射压力设定为50MPa以上。 在HCCI区域A中的预定负载区域中执行用于在包括压缩冲程期间的多个定时处喷射燃料的分开喷射。(C)2011,JPO和INPIT
    • 5. 发明专利
    • Intake and exhaust controller for four cycle gasoline engine
    • 用于四个循环汽油发动机的进气和排气控制器
    • JP2006144711A
    • 2006-06-08
    • JP2004338044
    • 2004-11-22
    • Mazda Motor Corpマツダ株式会社
    • NISHIMOTO TOSHIROHIRASHITA SHIGEYUKIYOUSO TAKASHIMATSUURA HIROKAZUYAMAKAWA MASANAOHAYASHI YOSHINORIFUJIKAWA TATSUYAHITOMI MITSUOARAKI KEIJI
    • F02D13/02F01L13/00F02D21/08F02D41/02F02D41/04F02D43/00F02D45/00F02M25/07
    • Y02T10/47
    • PROBLEM TO BE SOLVED: To ensure required filling efficiency ηv and proper inside EGR rate m being suitable for ensuring compression self-ignition and torque while reducing pumping loss in accordance with change of an operation condition of an engine by enlarging margin of change of filling efficiency ηv. SOLUTION: An exhaust valve driving means 62 for opening an exhaust valve 60 during an intake process when performing valve reopening operation and closing the exhaust valve 60 in a period from time close to bottom dead center to initial time in a compression process is provided. An intake valve driving means 43 for changing amount of valve opening of an intake valve 40 while opening the intake valve 40 in the vicinity of top dead center and closing the intake valve before bottom dead center in an operation region for performing at least valve reopening operation of the exhaust valve 60 is provided. Control means 120, 123 for controlling the intake valve driving means 43 to increase amount of valve opening of the intake valve 40 in a high load operation region when compared with a low load operation region among operation regions for performing valve reopening operation of the exhaust valve in accordance with engine load are provided. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了确保所需的填充效率ηv和适当的内部EGR率m适合于确保压缩自点火和转矩,同时根据发动机的操作条件的变化减小泵送损失,通过扩大变化幅度 的填充效率ηv。 解决方案:在压缩过程中,在接近下死点的时间到初始时间的时间段内执行阀重新打开操作和关闭排气门60时,在进气过程中打开排气阀60的排气门驱动装置62, 提供。 进气阀驱动装置43,用于在至少在阀门重新打开操作的操作区域中打开进气阀40在上止点附近,并且在下死点之前关闭进气门,从而改变进气门40的阀门开度 的排气门60。 用于控制进气门驱动装置43的控制装置120,123,用于与用于执行排气门的阀重新打开操作的操作区域中的低负载操作区域相比,在高负载操作区域中增加进气门40的阀门开度 根据发动机负载提供。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Engine starting device
    • 发动机起动装置
    • JP2006052695A
    • 2006-02-23
    • JP2004235525
    • 2004-08-12
    • Mazda Motor Corpマツダ株式会社
    • NISHIMOTO TOSHIROTETSUNO MASAYUKIARAKI KEIJI
    • F02D17/00F02D9/02F02D29/02F02D29/06F02D41/04F02D45/00F02N11/08F02N15/00F02N99/00
    • Y02T10/48
    • PROBLEM TO BE SOLVED: To automatically stop an engine under preset conditions for further improving fuel consumption and to reliably restart it after automatically stopped. SOLUTION: This engine starting device comprises a stopping/restarting control means for automatically stopping/restarting the engine, a speed detecting means for detecting an engine speed, a predicting means for predicting a stroke of one cylinder during stopping the engine in accordance with the detection result of the speed detecting means in a stopping operation period before stopping the engine, and an intake flow amount adjusting means for adjusting an intake flow amount in each cylinder. The stopping/restarting control means controls the intake flow amount adjusting means in accordance with the prediction result of the predicting means so that the amount of air in a cylinder predicted to be in an expansion stroke during stop is greater than the amount of air in a cylinder predicted to be in a compression stroke during stop. Then, it stops a piston in the cylinder predicted to be in the expansion stroke during stopping the engine so as to be located in a predetermined adequate range for restart. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:在预设条件下自动停止发动机,以进一步提高燃油消耗,并在自动停止后可靠地重新起动。 解决方案:该发动机启动装置包括用于自动停止/重启发动机的停止/重启控制装置,用于检测发动机转速的速度检测装置,用于根据发动机停止发动机预测一个气缸的行程的预测装置 在停止发动机之前的停止运转期间,检测速度检测机构的检测结果,以及用于调节各气缸内的进气流量的进气流量调节机构。 停止/再起动控制装置根据预测装置的预测结果来控制进气流量调节装置,使得在停止期间被预测为膨胀冲程的气缸中的空气量大于空气的量 气缸预计在停止期间处于压缩冲程。 然后,在停止发动机期间停止预计在膨胀冲程中的气缸中的活塞,以便位于预定的适当范围内用于重新启动。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Control device of spark ignition engine
    • 火花点火发动机的控制装置
    • JP2005105952A
    • 2005-04-21
    • JP2003340732
    • 2003-09-30
    • Mazda Motor Corpマツダ株式会社
    • YAMAKAWA MASANAOARAKI KEIJIHAYASHI YOSHINORINISHIMOTO TOSHIRO
    • F02B75/18F02B75/20F02D13/02F02D41/02F02D41/30F02F1/24F02F1/42F02M25/07
    • F02D13/0276F02B75/20F02B2075/1816F02D41/0065F02D41/3064F02F1/4214F02F2001/245F02M26/01F02M26/40F02M26/43Y02T10/18
    • PROBLEM TO BE SOLVED: To properly switch a gas flow passage from a cylinder independent state to a two-cylinder connected state while preventing emission performance from lowering in a transient period of switching. SOLUTION: When an operation mode is switched between a normal operation mode for introducing fresh air to each cylinder and independently burning each cylinder and a special operation mode for burning at the air-fuel ratio of preceding cylinders 2A and 2D which is in a lean air-fuel ratio larger than a theoretical air-fuel ratio while bringing specified cylinders into the two-cylinder connected state in the partial load area of the engine, introducing burned gas of the lean air-fuel ratio from the preceding cylinders 2A and 2D to succeeding cylinders 2B and 2C, and burning the burned gas together with a newly supplied fuel in the succeeding cylinders, the gas flow passage is brought into the two-cylinder connected state and a transient operation mode for stopping combustion in the preceding cylinders 2A and 2D and burning by a compression self-ignition in the succeeding cylinders 2B and 2C is interposed. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了将气体流路从气缸独立状态适当地切换到双气缸连接状态,同时防止在切换的过渡期间的排放性能下降。 解决方案:当在用于将新鲜空气引入每个气缸的正常操作模式和独立燃烧每个气缸之间切换操作模式时,以及在先前气缸2A和2D的空燃比燃烧的特殊操作模式 将特定气缸在发动机的部分负荷区域中的两气缸连接状态同时将理论空燃比大于理论空燃比的空燃比,将来自先前气缸2A的稀空燃比的燃烧气体 2D到后续的气缸2B和2C,并且将燃烧的气体与随后的气缸中的新供应的燃料一起燃烧,气体流动通道进入两气缸连接状态,并且用于停止在前一个气缸2A中的燃烧的暂态操作模式 并且插入2D并且在后续的气缸2B和2C中通过压缩自点火燃烧。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Spark ignition type engine
    • 火花点火型发动机
    • JP2005054669A
    • 2005-03-03
    • JP2003286285
    • 2003-08-04
    • Mazda Motor Corpマツダ株式会社
    • NISHIMOTO TOSHIROASAUMI KOJIMATSUURA HIROKAZUYAMAUCHI TAKETOSHI
    • F02B11/00F02B15/00F02B23/08F02B31/00F02D13/02F02D21/08F02D41/02F02D41/04F02D45/00F02F1/42
    • Y02T10/12Y02T10/125Y02T10/146
    • PROBLEM TO BE SOLVED: To improve a fuel consumption by performing a lean combustion in a preceding cylinder and a homogeneous combustion in a following cylinder in two-cylinder connection and to particularly improve a combustion performance by raising a mixing performance of a gas and a fuel spray in the following cylinder and the homogeneous dispersibility of a fuel.
      SOLUTION: A spark ignition type engine performs the combustion of an air fuel ratio larger than a theoretical air fuel ratio in the air fuel ratio of preceding cylinders 2A, 2D while considering two-cylinder connection state in a load partial load area of the engine, introduces burned gas of a lean air fuel ratio from the preceding cylinders 2A, 2D to following cylinders 2B, 2C, and performs a homogeneous combustion together with newly supplied fuel in the following cylinders 2B, 2C. A port 11b disposed at the following cylinder side end of a gas passage 22 between the cylinders is made as a helical port, while a port 12b disposed at the preceding cylinder side end of the gas passage 22 between the cylinders is made a tangential port.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了通过在前一个气缸中进行稀薄燃烧和在两缸连接中的后续气缸中均匀燃烧来改善燃料消耗,并且通过提高气体的混合性能来特别地提高燃烧性能 并在随后的气缸中具有燃料喷雾和燃料的均匀分散性。 解决方案:火花点火式发动机在考虑前一缸2A,2D的空燃比中的理论空燃比大于空燃比的燃烧时,同时考虑到在负荷部分负荷区域中的两气缸连接状态 发动机将先前的气缸2A,2D的稀薄空气燃料的燃烧气体引入后续的气缸2B,2C,并且在随后的气缸2B,2C中与新供应的燃料一起进行均匀的燃烧。 设置在气缸之间的气体通道22的随后的气缸侧端部的端口11b被制成螺旋形端口,而设置在气缸之间的气体通道22的先前气缸侧端部的端口12b被制成切向端口。 版权所有(C)2005,JPO&NCIPI