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    • 91. 发明专利
    • Method for producing filter
    • 生产过滤器的方法
    • JP2013184075A
    • 2013-09-19
    • JP2012048467
    • 2012-03-05
    • Toyota Motor Corpトヨタ自動車株式会社Cataler Corp株式会社キャタラー
    • IMAI DAICHINAKAYAMA SHIGEKINISHIOKA HIROMASAOTSUKI HIROSHITANAKA SEIJISUGAWARA YASUSHI
    • B01J35/04B01D53/94F01N3/023F01N3/035
    • PROBLEM TO BE SOLVED: To enable a filter with an exhaust emission control catalyst carried thereon to be produced, the filter exhibiting an almost uniform pressure loss to exhaust gas flowing thereto.SOLUTION: There is provided a method for producing a filter in which an exhaust emission control catalyst is carried on a partition wall for defining a plurality of flow passages each extending to the center axis direction. In the method, a predetermined water repellent having water repellency is filled into a base material of the partition wall along the center axis direction of the filter in such a way that the thickness of a layer of the predetermined water repellent becomes almost constant along the center axis direction of the filter. Then, after the filling step, a coating agent containing the exhaust emission control catalyst is applied to the base material, which is not filled with the predetermined water repellent, of the partition wall.
    • 要解决的问题:为了能够制备其上载有废气排放控制催化剂的过滤器,该过滤器对流过其的废气表现出几乎均匀的压力损失。解决方案:提供一种生产过滤器的方法,其中排气 排放控制催化剂承载在分隔壁上,用于限定各自延伸到中心轴线方向的多个流动通道。 在该方法中,具有防水性的预定的防水剂沿着过滤器的中心轴方向被填充到分隔壁的基材中,使得预定防水剂层的厚度沿着中心变得几乎恒定 过滤器的轴向。 然后,在填充步骤之后,将含有废气排放控制催化剂的涂布剂施加到未被预定防水剂填充的分隔壁的基材上。
    • 92. 发明专利
    • Exhaust emission control apparatus of internal combustion engine
    • 内燃机排气控制装置
    • JP2012180782A
    • 2012-09-20
    • JP2011043726
    • 2011-03-01
    • Toyota Motor Corpトヨタ自動車株式会社
    • OSHIKAWA KATSUHIKONAKAYAMA SHIGEKINISHIOKA HIROMASATSUKAMOTO YOSHIHISAOTSUKI HIROSHIMATSUO JUNICHI
    • F01N3/28B01D51/00B01D53/94B01J35/04F01N3/01F01N3/02F01N3/022
    • PROBLEM TO BE SOLVED: To provide an exhaust emission control apparatus of an internal combustion engine that improves the collection efficiency of particulates in exhaust discharged from the internal combustion engine and also prevents deposit of ash.SOLUTION: The exhaust emission control apparatus includes: a filter having a plurality of exhaust channels formed in an exhaust flow direction by a partition having a pore; an electrification device that electrifies the particulates in the exhaust and located upstream the filter; and an electric field formation device that forms an electric field between the filter and the electrification device and guides the electrified particulates to an outer peripheral side of the filter. The filter has a central side region and an outer peripheral side region which are arranged from the center of the filter toward a radial outside in order. The porosity of the partition formed of each exhaust channel in the outer peripheral side region of the filter is smaller than that in the central side region of the filter.
    • 要解决的问题:提供一种内燃机的废气排放控制装置,其提高从内燃机排出的排气中的微粒的收集效率,并且还防止灰分沉积。 解决方案:废气排放控制装置包括:过滤器,具有通过具有孔的隔板在排气流动方向上形成的多个排气通道; 对排气中的微粒进行通气并位于过滤器上游的带电装置; 以及电场形成装置,其在所述过滤器和所述带电装置之间形成电场,并且将所述带电的微粒引导到所述过滤器的外周侧。 过滤器具有从过滤器的中心朝向径向外侧排列的中心侧区域和外周侧区域。 在过滤器的外周侧区域中由每个排气通道形成的隔板的孔隙率小于过滤器的中央侧区域的孔隙率。 版权所有(C)2012,JPO&INPIT
    • 93. 发明专利
    • Cylinder gas temperature estimation device for internal combustion engine
    • 用于内燃机的气缸温度估算装置
    • JP2011058377A
    • 2011-03-24
    • JP2009206035
    • 2009-09-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAYAMA SHIGEKI
    • F02D45/00
    • PROBLEM TO BE SOLVED: To provide a cylinder gas temperature estimation device for an internal combustion engine accurately estimating cylinder gas temperature when a cavity is formed in the top of a piston.
      SOLUTION: When estimating the cylinder gas temperature, it is assumed that all cylinder gases exist outside of the cavity if a crank angle is out of a range of CA1 and CA2 including a TDC (Top Dead Center), and the amount of heat loss of the cylinder gas is calculated based on "the amount of heat transmitted between the cylinder gas and a cylinder sidewall" calculated using a heat transfer coefficient h1 based on a swirl flow speed V1 with respect to the cylinder sidewall (Step 1018). It is assumed that all cylinder gases exist in the cavity if the crank angle is within the range of CA1 and CA2, and the amount of heat loss of the cylinder gas is calculated based on "the amount of heat transmitted between the cylinder gas and the cavity sidewall" calculated using a heat transfer coefficient h2 (>h1) based on a swirl flow speed V2 (>V1) increased due to spinning up with respect to the cavity sidewall (Step 1036).
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于内燃机的气缸温度估计装置,其精确地估计当在活塞的顶部形成空腔时的气缸温度。

      解决方案:当估计气缸温度时,假设所有气缸气体存在于腔体外部,如果曲柄角度超出包括TDC(上止点)在内的CA1和CA2的范围, 基于相对于气缸侧壁的涡旋流速V1,使用基于传热系数h1计算的“气缸气体与气缸侧壁之间传递的热量”来计算气缸气体的热损失(步骤1018)。 如果曲轴转角在CA1和CA2的范围内,气缸内气体全部存在,气缸内气体的热损失量就是基于“气缸和气缸之间传递的热量 基于由于相对于空腔侧壁旋转而增加的旋转流速V2(> V1),使用传热系数h2(> h1)计算的空腔侧壁(步骤1036)。 版权所有(C)2011,JPO&INPIT

    • 94. 发明专利
    • Device for setting control parameter of internal combustion engine
    • 用于设定内燃机控制参数的装置
    • JP2010138864A
    • 2010-06-24
    • JP2008317910
    • 2008-12-15
    • Toyota Motor Corpトヨタ自動車株式会社
    • TAKASU YUSUKENAKAYAMA SHIGEKIIBUKI TAKU
    • F02D45/00
    • PROBLEM TO BE SOLVED: To easily obtain a control parameter set result in which fuel consumption is optimum while satisfying emission regulation. SOLUTION: A NOx-fuel consumption potential defined as a changing locus with respect to a NOx generation rate of a minimum value of a fuel consumption rate on a plane with the NOx generation rate and the fuel consumption rate as coordinates is obtained for each of a plurality of conditions of engine speed and engine load, and according to an exhaust gas test measuring operation mode of exhaust gas regulation of an internal combustion engine, by determining a point on each NOx-fuel consumption potential so as to minimize the fuel consumption amount while making the NOx generation total amount to be a prescribed total amount target value or less when the internal combustion engine is operated, an individual target value of the NOx generation rate for each of the plurality of conditions of the engine speed and the engine load is set. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了容易地获得在满足排放调节的情况下燃料消耗最佳的控制参数设定结果。 解决方案:获得将NOx生成速率和燃料消耗率作为坐标的平面上的燃料消耗率的最小值的NOx生成速度定义为变化轨迹的NOx燃料消耗电位, 发动机转速和发动机负荷的多个条件中的每一个,并且根据内燃机的排气调节的排气测试测量操作模式,通过确定每个NOx-燃料消耗电位上的点以使燃料最小化 使内燃机运转时使NOx生成总量达到规定总量目标值以下的消耗量,发动机转速和发动机的多个条件中的每一个的NOx生成率的个别目标值 负载设置。 版权所有(C)2010,JPO&INPIT
    • 95. 发明专利
    • Exhaust emission control device for internal combustion engine
    • 用于内燃机的排气排放控制装置
    • JP2009144543A
    • 2009-07-02
    • JP2007320667
    • 2007-12-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAYAMA SHIGEKIYASUZAKI ICHIJI
    • F01N3/02B01D46/42B01D53/86B01D53/94
    • PROBLEM TO BE SOLVED: To provide a technique preventing fuel economy from lowering, by reducing opportunities executing a forced regeneration control of a filter as far as possible, in an exhaust emission control device for an internal combustion engine.
      SOLUTION: The exhaust emission control device for an internal combustion engine comprises: an exhaust passage discharging exhaust from the internal combustion engine; a DPF disposed to the exhaust passage to carry a catalyst with oxidation function and capturing PM in the exhaust; and an exhaust pulsation control means increasing a reciprocation amount of exhaust by exhaust pulsation at an arrangement position of the DPF when oxidation and removal of the PM captured in the DPF are promoted, and decreasing the exhaust pulsation itself near the arrangement position of the DPF when an deposition amount of the PM captured in the DPF is detected.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过在内燃机的废气排放控制装置中尽可能地减少执行过滤器的强制再生控制的机会来提供防止燃料经济性降低的技术。 解决方案:用于内燃机的废气排放控制装置包括:排气通道,其排出来自内燃机的排气; 设置在排气通道上以携带具有氧化功能的催化剂并在排气中捕获PM的DPF; 以及排气脉动控制装置,当促进在DPF中捕获的PM的氧化和去除时,在DPF的布置位置处通过排气脉动增加排气的往复运动量,并且在DPF的布置位置附近减小排气脉动本身, 检测在DPF中捕获的PM的沉积量。 版权所有(C)2009,JPO&INPIT
    • 96. 发明专利
    • Ignition timing determination system of internal combustion engine
    • 内燃机点火时间确定系统
    • JP2009138675A
    • 2009-06-25
    • JP2007317456
    • 2007-12-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAYAMA SHIGEKI
    • F02D45/00
    • PROBLEM TO BE SOLVED: To provide a technique of improving accuracy of determining an ignition timing based on a heat generation rate which is calculated from values measured by an in-cylinder pressure sensor and a crank angle sensor.
      SOLUTION: In an ignition timing determination system, under a prescribed condition in which heat absorption due to fuel evaporation and heat generation due to combustion do not occur within a prescribed crank angle near a compression stroke upper dead point, heat generation rates are calculated at a plurality of points within the prescribed crank angle. An average value of the heat generation rates at a plurality of the points is calculated. The average value is added to a basic determination reference value which is set based on an assumption that the crank angle sensor does not have an offset error, to thereby obtain a determination reference value used in determining an ignition timing. If a heat generation rate calculated from a measured in-cylinder pressure value and a measured crank angle value exceeds the determination reference value at a certain point of time, the certain point of time is determined as an ignition timing.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种基于由缸内压力传感器和曲轴转角传感器测量的值计算出的发热率来提高确定点火正时的精度的技术。 解决方案:在点火正时确定系统中,在压缩冲程上死点附近的规定曲柄角内不发生燃料蒸发和由于燃烧产生的热产生的吸热的规定条件下,发热率为 在规定的曲柄角内的多个点处计算出。 计算多个点处的发热率的平均值。 平均值被添加到基于曲柄角传感器不具有偏移误差的假设而设定的基本判定基准值,从而获得用于确定点火正时的判定基准值。 如果从测定的缸内压力值和测量的曲柄角值计算的发热量在某个时间点超过判定基准值,则将该特定时间点确定为点火正时。 版权所有(C)2009,JPO&INPIT
    • 97. 发明专利
    • Intake control device for internal combustion engine
    • 内燃机控制装置
    • JP2009013872A
    • 2009-01-22
    • JP2007176305
    • 2007-07-04
    • Toyota Motor Corpトヨタ自動車株式会社
    • MATSUNAGA AKIONAKAYAMA SHIGEKIONISHI TOMOMI
    • F02D21/08F02M35/108
    • PROBLEM TO BE SOLVED: To provide an intake control device for an internal combustion engine which is equipped with two passages provided to branch the intake passage and selectively switches the passages at introduction and stop of EGR gas without deteriorating exhaust emission and combustion state of the internal combustion engine. SOLUTION: An intake control device is applied to an internal combustion engine 1 equipped with a first branch passage 9 and second branch passage 10 which are provided to the lower reaches from a connection position in a low pressure EGR passage 20 so as to branch an intake passage 3, and introduces intake to a cylinder 2 through the first branch passage 9 when introducing EGR gas and trough the second branch passage 10 when stopping the EGR gas, wherein a first main regulating valve 11 and second main regulating valve 13 are gradually closed from fully opened positions to totally closed positions, respectively, and a first fresh air regulating valve 14 and second fresh air regulating valve 16 are gradually opened from totally closed positions to fully opened positions, respectively, when switching intake flow from the first branch passage 9 to the second branch passage 10. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种内燃机的进气控制装置,其具有设置成分支进气通道的两个通道,并且在EGR气体的引入和停止期间选择性地切换通道,而不会使废气排放和燃烧状态恶化 的内燃机。 解决方案:将进气控制装置应用于配备有从低压EGR通路20的连接位置设置在下游的第一分支通路9和第二分支通路10的内燃机1,以便 分支一个进气通道3,当引入EGR气体时通过第一分支通道9将气体引入气缸2,并在停止EGR气体时通过第二分支通道10,其中第一主调节阀11和第二主调节阀13是 从完全打开位置逐渐关闭到完全关闭位置,并且当从第一分支切换进气流时,第一新鲜空气调节阀14和第二新鲜空气调节阀16分别从完全关闭位置逐渐打开到完全打开位置 第9段至第2分支通道10.版权所有(C)2009,JPO&INPIT
    • 98. 发明专利
    • Temperature sensor element and temperature sensor
    • 温度传感器元件和温度传感器
    • JP2008309526A
    • 2008-12-25
    • JP2007155445
    • 2007-06-12
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • SATO TAKAAKINAKASE YOSHIHIROIBUKI TAKUNAKAYAMA SHIGEKI
    • G01K7/02
    • PROBLEM TO BE SOLVED: To provide a temperature sensor element and a temperature sensor, each capable of preventing its mechanical strength from degrading, while maintaining its temperature-following capability against a change in temperature.
      SOLUTION: The temperature sensor element and the temperature sensor are characterized by comprising: a substrate 102d including a thick-wall part 102x having a prescribed thickness and a thin-wall part 102y thinner than the thick-wall part; an electric insulating film 102a formed on the substrate 102d; a first thermocouple film 102b formed on the electric insulating film 102a on the thick-wall part 102x; and a second thermocouple film 102c formed so as to traverse the upper surface of the electric insulating film 102a on the thin-wall part 102y.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种温度传感器元件和温度传感器,每个温度传感器元件和温度传感器能够防止其机械强度降低,同时保持其温度跟随能力抵抗温度变化。 解决方案:温度传感器元件和温度传感器的特征在于包括:衬底102d,其包括具有规定厚度的厚壁部分102x和比厚壁部分薄的薄壁部分102y; 形成在基板102d上的电绝缘膜102a; 形成在厚壁部102x上的电绝缘膜102a上的第一热电偶膜102b; 以及形成为在薄壁部102y上横越电绝缘膜102a的上表面的第二热电偶膜102c。 版权所有(C)2009,JPO&INPIT
    • 99. 发明专利
    • Exhaust gas recirculation control device for internal combustion engine
    • 用于内燃机的排气回收控制装置
    • JP2008274872A
    • 2008-11-13
    • JP2007120500
    • 2007-05-01
    • Toyota Motor Corpトヨタ自動車株式会社
    • IEMURA AKIYUKIMATSUNAGA AKIOONISHI TOMOMINAKAYAMA SHIGEKI
    • F02D21/08F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To sufficiently secure NOx reduction effect by recirculation of exhaust gas under an operation condition where oxygen concentration in EGR gas is high.
      SOLUTION: This exhaust gas recirculation device for an internal combustion engine includes an exhaust gas recirculation means such as an EGR passage, and re-circulates exhaust gas after passing through an oxidation catalyst to an intake passage. The exhaust gas recirculation means can be a so-called high pressure loop EGR device and/or a low pressure loop EGR device. The oxidation catalyst can be provided in the EGR passage or in the exhaust passage. Oxygen concentration in exhaust gas is acquired, and fuel is supplied into exhaust gas by a fuel supply means when the acquired oxygen concentration is higher than predetermined value. Since the fuel reacts in the oxidation catalyst and consumes oxygen, oxygen concentration in exhaust gas is reduced. Since exhaust gas in which oxygen concentration is dropped is returned to an intake side, sufficient NOx reduction effect is provided even under the operation condition where oxygen concentration in exhaust gas is high.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过在EGR气体中的氧浓度高的操作条件下,通过再循环废气来充分确保NOx还原效果。 解决方案:这种用于内燃机的废气再循环装置包括诸如EGR通道的废气再循环装置,并且在通过氧化催化剂之后使废气再循环到进气通道。 废气再循环装置可以是所谓的高压回路EGR装置和/或低压回路EGR装置。 氧化催化剂可以设置在EGR通道或排气通道中。 获取排气中的氧浓度,当获取的氧浓度高于预定值时,通过燃料供给装置将燃料供给到排气中。 由于燃料在氧化催化剂中反应并消耗氧气,所以废气中的氧浓度降低。 由于其中氧浓度下降的废气返回到进气侧,所以即使在废气中的氧浓度高的操作条件下也提供了足够的NOx还原效果。 版权所有(C)2009,JPO&INPIT
    • 100. 发明专利
    • Egr system of internal combustion engine
    • 内燃机EGR系统
    • JP2008184925A
    • 2008-08-14
    • JP2007017367
    • 2007-01-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • MURATA HIROKIMATSUMOTO ISAONAGAE MASAHIROONO TOMOYUKIYAMASHITA AKIRAHAGA HIROYUKISHIMIZU HAJIMENAKAYAMA SHIGEKIONISHI TOMOMIMIYAKE TERUHIKOKARITA KOJI
    • F02D21/08F01N3/02F01N3/20F01N3/24F01N3/36F02D23/00F02M25/07
    • Y02T10/121Y02T10/144
    • PROBLEM TO BE SOLVED: To provide a technique for preventing recirculation of the reducing agent added to exhaust gas during regeneration treatment of an exhaust emission control device, and of the reaction product produced by the reducing agent, into an internal combustion engine provided with a low pressure EGR device for recirculating the exhaust gas on the downstream side more than the exhaust emission control device together with the exhaust gas, by the low pressure EGR device.
      SOLUTION: This EGR system of the internal combustion engine is provided with: a low pressure EGR passage 31 for connecting a downstream side exhaust pipe 12 on the downstream side of a turbine 52 of a turbocharger 5 with an intake pipe 3 on the upstream side of a compressor 51; and branched passages 60, 70 branched in an upstream side exhaust pipe 4 on the upstream side more than a connection part of the low pressure EGR passage 31 and joining mutually. Fuel addition valves 61, 71, the exhaust emission control devices 62, 72, and exhaust throttle valves 63, 73 are provided in each branched passage. While regeneration treatment is applied on the exhaust emission control device 72 on one side, fuel is added by the fuel addition valve 71, the exhaust throttle valve 73 is closed, and the exhaust throttle valve 63 is opened to prevent fuel and CO
      2 from flowing into the low pressure EGR passage 31 and recirculating into the internal combustion engine.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种技术,用于防止在废气排放控制装置的再生处理期间将废气中的还原剂和由还原剂产生的反应产物再循环到设置在内燃机中的技术 具有低压EGR装置,用于通过低压EGR装置将排气与排气一起再循环在排气排放控制装置的下游侧。 解决方案:内燃机的EGR系统设置有用于将涡轮增压器5的涡轮52的下游侧的下游侧排气管12与吸入管3连接的低压EGR通路31 压缩机51的上游侧; 以及在低于上述低压EGR通路31的连接部的上游侧的上游侧排气管4中分支的分支通路60,70,相互连接。 燃料添加阀61,71,废气排放控制装置62,72以及排气节流阀63,73设置在各分支流路中。 当在一侧的废气排放控制装置72上进行再生处理时,由燃料添加阀71添加燃料,关闭排气节流阀73,打开排气节流阀63,以防止燃料和CO 2 流入低压EGR通道31并再循环进入内燃机。 版权所有(C)2008,JPO&INPIT