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    • 1. 发明专利
    • Premixed compression ignition internal combustion engine
    • 高精度压缩点火内燃机
    • JP2008095539A
    • 2008-04-24
    • JP2006275245
    • 2006-10-06
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUDA TAKESHIKONO TOSHIYANAKAJIMA AKIRAURUSHIBARA TOMONORI
    • F02D41/04F02D41/02F02D45/00
    • Y02T10/128
    • PROBLEM TO BE SOLVED: To enlarge a premixed compression ignition combustion area to a high load side by restraining increase of combustion noise caused by rise of an engine load.
      SOLUTION: Fuel ignition timing is retarded when a fuel injection amount is increased, and the fuel ignition timing is advanced when the fuel injection amount is decreased. When the fuel injection timing is retarded with respect to increase of the fuel injection amount, interference between fuel spray and a wall surface of a combustion chamber is minimized, and the air-fuel mixture in the combustion chamber becomes uneven, and thereby, the air-fuel mixture is cooled, and a temperature in a cylinder is lowered. As a result, the ignition timing is retarded, and increase of the combustion noise can be restrained.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过抑制由发动机负载的升高引起的燃烧噪声的增加,将预混压缩点火燃烧区域扩大到高负荷侧。 解决方案:当燃料喷射量增加时燃料点火正时被延迟,并且当燃料喷射量减少时燃料点火正时提前。 当燃料喷射正时相对于燃料喷射量的增加而延迟时,燃料喷雾与燃烧室的壁面之间的干扰被最小化,并且燃烧室中的空气 - 燃料混合物变得不均匀,从而空气 - 燃料混合物被冷却,并且气缸中的温度降低。 结果,点火正时被延迟,并且可以抑制燃烧噪声的增加。 版权所有(C)2008,JPO&INPIT
    • 3. 发明专利
    • Control device for compression ignition internal combustion engine
    • 用于压缩点火内燃机的控制装置
    • JP2007040218A
    • 2007-02-15
    • JP2005226358
    • 2005-08-04
    • Nissan Motor Co Ltd日産自動車株式会社
    • DATE TOMOYOSHIKOYAMA HIROKIMIMATSUDA TAKESHI
    • F02D45/00F02B11/00F02B23/10F02D13/02F02D41/04
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To cope with the deterioration of an engine compression system in an compression ignition combustion engine.
      SOLUTION: Compression pressure on a low rotation side (at cranking) and compression pressure on a high rotation side (at decelerating fuel-cut) are each detected. When a difference between an allowance X of the drop of the compression pressure from an initial value on the low rotation side and an allowance Y of the drop of the compression pressure from an initial value on the high rotation side is a predetermined value or greater, deterioration is determined. When the deterioration is determined, a fuel injection amount is corrected to be increased so as to improve ignitability, depending on an engine speed. Otherwise, a temperature in a cylinder is increased with a negative overlap period, or spark ignition combustion is selected.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了应对压缩点火内燃机中的发动机压缩系统的劣化。 解决方案:检测低转动侧的压缩压力(起动时)和高旋转侧的压缩压力(减速燃料切断时)。 当从低旋转侧的初始值的压缩压力的下降的容许量X与高旋转侧的初始值的压缩压力的下降的余量Y之间的差为预定值以上时, 劣化确定。 当确定劣化时,根据发动机转速,燃料喷射量被校正以增加点燃性。 否则,气缸内的温度随负重叠周期增加,或者选择火花点火燃烧。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2007016685A
    • 2007-01-25
    • JP2005198752
    • 2005-07-07
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUDA TAKESHIDATE TOMOYOSHIKOYAMA HIROKIMINAKAJIMA MASAHIRO
    • F02D41/04F02B11/00F02B23/10F02B31/00F02D13/02F02D41/02F02D43/00F02P5/15
    • F02D41/3029F02D41/3035F02D41/307Y02T10/125Y02T10/146
    • PROBLEM TO BE SOLVED: To suppress a torque level difference with change-over from spark ignition combustion into compression self-igniting combustion in an internal combustion engine which is operated with change-over between the spark ignition combustion and the compression self-igniting combustion.
      SOLUTION: When determining a request for change-over from the spark ignition combustion into the compression self-igniting combustion in accordance with an engine operated condition, this control device increases a throttle opening to actualize homogeneous combustion at a leaner air-fuel ratio and intensify the flow of intake air in a cylinder, controls an internal EGR amount to be increased until reaching a limit of stabilizing homogeneous lean combustion, and selects stratified charge lean combustion to accelerate leaner combustion. When compression self-igniting possible conditions are established, the compression self-igniting combustion is started.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了在由火花点火燃烧和压缩自发燃烧之间的转换操作的内燃机中抑制从火花点火燃烧转换成压缩自燃燃烧的转矩水平差, 点燃燃烧 解决方案:当根据发动机操作状态确定从火花点火燃烧转换为压缩自燃燃烧的请求时,该控制装置增加节气门开度以实现较稀的空气燃料的均匀燃烧 比例并加强气缸内进气的流量,控制内部EGR量增加直到达到稳定均匀稀薄燃烧的极限,并选择分层充气稀燃燃烧以加速精馏燃烧。 当建立压缩自点燃可能的条件时,开始压缩自燃燃烧。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Controller of internal combustion engine
    • 内燃机控制器
    • JP2012137031A
    • 2012-07-19
    • JP2010290140
    • 2010-12-27
    • Nissan Motor Co Ltd日産自動車株式会社
    • YONEKURA KENGONAKAMURA TAKESHIMATSUDA TAKESHISHIRAISHI TAISUKE
    • F02D45/00
    • PROBLEM TO BE SOLVED: To provide a controller of an internal combustion engine, which does not require a dedicated sensor to determine a failure of an ozone supply means.SOLUTION: The controller of an internal combustion engine has a knocking detection means 18 for detecting knocking, an ozone generation means 23 for generating ozone to be supplied into a combustion chamber 11 of the internal combustion engine, and a control means 100 for controlling the knocking detection means 18 and the ozone generation means 23. The control means 100 supplies ozone generated by the ozone generation means 23 into the combustion chamber 11, and combustion under spark ignition, according to output of knocking detected by the knocking detection means 18, a failure of the ozone generation means 23 is determined.
    • 要解决的问题:提供一种不需要专用传感器来确定臭氧供应装置的故障的内燃机的控制器。 解决方案:内燃机的控制器具有用于检测爆震的爆震检测装置18,用于产生要供给到内燃机的燃烧室11中的臭氧的臭氧发生装置23,以及用于 控制爆震检测装置18和臭氧产生装置23.控制装置100根据由爆震检测装置18检测到的爆震的输出,将由臭氧发生装置23产生的臭氧供应到燃烧室11中,并在火花点火下进行燃烧 确定臭氧产生装置23的故障。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • Combustion control device for internal combustion engine
    • 内燃机用燃烧控制装置
    • JP2011021483A
    • 2011-02-03
    • JP2009164426
    • 2009-07-13
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUDA TAKESHI
    • F02D41/04F02B1/14F02B11/00F02B23/10F02D13/02F02D41/02F02D45/00
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To provide a combustion control device for an internal combustion engine suppressing misfire when switching from compression self-ignition combustion to spark ignition combustion. SOLUTION: This combustion control device for the internal combustion engine capable of switching between the spark ignition combustion and the compression self-ignition combustion by internal EGR gas includes a control means 11, which performs control to inject fuel from the closing timing of an exhaust valve through a top dead center in an exhaust stroke until the closing timing EVC of the exhaust valve 122 is shifted to predetermined timing when switching from the compression self-ignition combustion to the spark ignition combustion. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于在从压缩自点火燃烧切换到火花点火燃烧时抑制失火的内燃机的燃烧控制装置。 解决方案:用于能够在火花点火燃烧和由内部EGR气体进行的压缩自点燃燃烧之间切换的内燃机的燃烧控制装置包括控制装置11,其控制从燃料的关闭时刻喷射燃料 在从压缩自点火燃烧切换到火花点火燃烧时,通过排气冲程中的上止点的排气阀直到排气门122的关闭正时EVC偏移到预定定时。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Engine combustion control device
    • 发动机燃烧控制装置
    • JP2009197724A
    • 2009-09-03
    • JP2008041755
    • 2008-02-22
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUDA TAKESHI
    • F02D19/08F02B3/06F02B17/00F02B23/10F02D41/02F02M63/00
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To enhance the exhaust performance by supplementing degradation of the ignitability of fuel of low cetane number caused by the low-load drive in a self-ignition type engine using a plurality of fuel having different cetane number.
      SOLUTION: A first fuel injection valve for feeding first fuel of low cetane number, and a second fuel injection valve for feeding second fuel of high cetane number are provided. The second fuel injection valve is installed so that the second fuel can be directly injected in a cylinder. The timing at which the injected fuel is diffused entirely in the cylinder is set as the injection timing of the first fuel. The first injection timing ITl1 is set at which the injected fuel is diffused entirely in the cylinder, and the second injection timing ITl2 is set at which the injected fuel is locally and unevenly distributed in the cylinder as the second fuel injection timing by the second fuel injection valve. The second fuel diffused entirely in the cylinder is superposed on the homogeneous fuel/air mixture of the first fuel.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过补充使用具有不同十六烷值的多种燃料的自点火式发动机中由低负荷驱动引起的低十六烷值的燃料的点火性降低来提高排气性能。 解决方案:提供用于供给低十六烷值的第一燃料的第一燃料喷射阀和用于供给高十六烷值的第二燃料的第二燃料喷射阀。 第二燃料喷射阀安装成使得第二燃料可以直接喷射到气缸中。 将注入的燃料在气缸中完全扩散的定时设定为第一燃料的喷射正时。 设定第一喷射正时IT1,其中喷射的燃料完全在气缸中扩散,并且第二喷射正时IT12被设定为喷射的燃料局部地且不均匀地分布在气缸中作为第二燃料喷射正时由第二燃料 注射阀。 在气缸中完全扩散的第二燃料叠加在第一燃料的均匀燃料/空气混合物上。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2007056797A
    • 2007-03-08
    • JP2005244129
    • 2005-08-25
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUDA TAKESHIDATE TOMOYOSHIKOYAMA HIROKIMI
    • F01N3/24F02B11/00F02D41/02F02D41/04
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine utilizing spark ignition combustion and compression ignition combustion together and capable of raising the temperature of exhaust gas and improving exhaust gas post-treatment performance by joining both exhaust gases when compared with a case where only compression ignition combustion is utilized.
      SOLUTION: This internal combustion engine lets a part of cylinders (No. 1 and No.2) perform spark ignition combustion and lets the other cylinders (No. 3 and No.4) perform compression ignition combustion. An exhaust manifold 12 joins exhaust gases of the No. 1 and No. 2 cylinders performing the spark ignition combustion and exhaust gases of the No. 3 and No. 4 cylinders performing the compression ignition combustion mutually (13, 14) first of all, and three-way catalyst 15 is arranged on the downstream side of a joining part 13 of the No. 1 and No. 2 cylinders. Next, the exhaust manifold joins joining exhaust gases of the No. 1 and No. 2 cylinders and joining exhaust gases of the No. 3 and No. 4 cylinders mutually (17), and oxidation catalyst 18 is arranged on the downstream side of a joining part 17. An intake restricting means (a second throttle valve) 11 for restricting amount of intake air in the No. 1 and No. 2 cylinders performing the spark ignition combustion is provided.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种利用火花点火燃烧和压缩点火燃烧在一起的能够提高排气温度并且通过连接两种废气来提高废气后处理性能的内燃机 其中仅使用压缩点火燃烧。

      解决方案:该内燃机使一部分气缸(1号和2号)执行火花点火燃烧,并允许其他气缸(3号和4号)进行压缩点火燃烧。 排气歧管12首先将执行点火燃烧的1号和2号气缸和执行压缩点火燃烧的3号和4号气缸的废气相互连接(13,14) 在1号和2号气缸的接合部13的下游侧配置有三元催化剂15。 接下来,排气歧管连接1号和2号气缸的排气,并连接3号和4号气缸相互排出的废气(17),氧化催化剂18配置在 提供了用于限制执行火花点火燃烧的1号和2号气缸中的进气量的进气限制装置(第二节流阀)11。 版权所有(C)2007,JPO&INPIT

    • 9. 发明专利
    • Control device for compression self ignition internal combustion engine
    • 用于压缩自燃点火内燃机的控制装置
    • JP2006233921A
    • 2006-09-07
    • JP2005052526
    • 2005-02-28
    • Nissan Motor Co Ltd日産自動車株式会社
    • DATE TOMOYOSHIKOYAMA HIROKIMIMATSUDA TAKESHI
    • F02D21/08F02M25/07
    • F02M26/03F02M26/36
    • PROBLEM TO BE SOLVED: To provide a control device for a compression self ignition internal combustion engine raising temperature in all cylinders to demand temperature with good response by burned and heated external EGR and improving stable self ignition performance. SOLUTION: A secondary air passage 17 is provided supplying secondary air to an exhaust gas passage 11 part in an inlet upstream side of an EGR passage 12. A fuel injection valve 19 for secondary air is provided near an outlet thereof. A glow plug 20 for promoting oxidation reaction (combustion) of injected fuel and unburned HC in exhaust gas by secondary air is provided. Exhaust gas burned and heated by supply of secondary air and fuel is re-circulated to an intake system as external EGR in a light load zone. Temperature in the cylinder is increased and self ignition nature is improved by such structure. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于所有气缸中的压缩自点火内燃机升高温度的控制装置,以通过燃烧和加热的外部EGR具有良好响应来提高温度并提高稳定的自点火性能。 解决方案:设置二次空气通道17,其向EGR通道12的入口上游侧的排气通道11部分供应二次空气。二次空气燃料喷射阀19设置在其出口附近。 提供了用于通过二次空气促进喷射燃料和废气中的未燃烧HC的氧化反应(燃烧)的电热塞20。 通过二次空气和燃料的供给燃烧和加热的废气在轻负载区域中被再循环到作为外部EGR的进气系统。 通过这种结构,气缸中的温度增加并且自燃特性得到改善。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Internal combustion engine system control device and control method
    • 内燃机系统控制装置及控制方法
    • JP2014034892A
    • 2014-02-24
    • JP2012175109
    • 2012-08-07
    • Nissan Motor Co Ltd日産自動車株式会社
    • MAEDA YOJIMATSUDA TAKESHI
    • F02D9/02F02D21/08F02D45/00
    • PROBLEM TO BE SOLVED: To more reliably prevent accidental fire or knocking of an internal combustion engine.SOLUTION: A controller 110 calculates a target opening area of a throttle valve 12 and an EGR valve 31 defined by a target EGR rate based on an operation condition of an internal combustion engine 20, and specifies an actual flow rate of the EGR valve 31 according to change of the target opening area of the EGR valve 31. The controller 110 limits the target opening area of the throttle valve 12 by a limit value of the EGR rate required for normal combustion based on the specified actual flow rate of the EGR valve 31. Then, the controller 110 controls the throttle valve based on the limited target opening area, and controls the EGR valve 31 based on the calculated target opening area.
    • 要解决的问题:为了更可靠地防止内燃机的意外起火或爆震。解决方案:控制器110基于操作条件计算由目标EGR率定义的节气门12和EGR阀31的目标开口面积 并且根据EGR阀31的目标开口面积的变化来指定EGR阀31的实际流量。控制器110将节气门12的目标开口面积限制在 根据EGR阀31的指定的实际流量,正常燃烧所需的EGR率。然后,控制器110基于受限制的目标开度来控制节气门,并且基于计算出的目标开度面积来控制EGR阀31 。