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    • 1. 发明专利
    • Exhaust gas cooling adapter
    • 排气冷却适配器
    • JP2013036448A
    • 2013-02-21
    • JP2011175308
    • 2011-08-10
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社
    • TAKAHASHI YUKIHIROHOSHI KOICHISHINODA SACHIHISAMITANI SHINICHI
    • F01N3/02F01N13/10F01P3/12
    • PROBLEM TO BE SOLVED: To improve cooling efficiency of exhaust gas in an exhaust gas cooling adapter for an internal combustion engine.SOLUTION: A passage cross-sectional area of an exhaust passage 22 of the exhaust gas cooling adapter 8 is reduced as it goes from a side of an exhaust port 12 to a side of an exhaust manifold 10. The exhaust gas flowing from the exhaust port 12 into the exhaust passage 22 is cooled while flowing and the volume is reduced. The passage cross-sectional area of the exhaust passage 22 is also reduced, thereby preventing the reduction in flow velocity and improving cooling efficiency. The passage cross-sectional area of a water jacket 24 is enlarged in an exhaust downstream side, so that cooling water flows at high speed on the side of the exhaust port 12. Accordingly, the exhaust gas can be efficiently cooled on the side of the exhaust port 12, which is a high temperature side, and film boiling can be prevented. Thus, the cooling efficiency is not reduced. In addition, the passage cross-sectional area of the water jacket 24 is enlarged on the exhaust downstream side, thereby reducing the pressure loss of a pump.
    • 要解决的问题:提高用于内燃机的排气冷却适配器中的废气的冷却效率。 解决方案:排气冷却适配器8的排气通道22的通道横截面积从排气口12的侧面到排气歧管10的侧面减小。排气从 进入排气通道22的排气口12在流动的同时被冷却并且体积减小。 排气通道22的通道横截面积也减小,从而防止流速的降低和提高冷却效率。 水套24的通道横截面积在排气下游侧被扩大,使得冷却水在排气口12的侧面高速流动。因此,排气可以在 作为高温侧的排气口12,能够防止膜沸腾。 因此,冷却效率不降低。 此外,水套24的通道横截面积在排气下游侧增大,从而减小了泵的压力损失。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Cooling device of internal combustion engine
    • 内燃机冷却装置
    • JP2012007523A
    • 2012-01-12
    • JP2010143200
    • 2010-06-23
    • 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
    • TAKAHASHI YUKIHIROMITANI SHINICHIHOSHI KOICHISHINODA SACHIHISA
    • F01P3/12F01P7/16
    • PROBLEM TO BE SOLVED: To provide a cooling device of an internal combustion engine that prevents boiling of a coolant circulating through an exhaust manifold.SOLUTION: An engine cooling system 1 includes: a coolant circulation channel 22 which circulates the coolant through a water jacket 111 installed on the exhaust manifold 110; and a bypass channel 23 which branches from the coolant circulation channel 22 to bypass the water jacket 111. In addition, the system predicts a temperature variation of a heat-exchanging part between the coolant and the water jacket 111 on the basis of an engine output and an amount of the coolant (Wt) circulating through the water jacket 111 (Ti); and determines the necessity of increase of the amount of the coolant circulating through the water jacket 111 from the predicted result. When it is determined that the amount of the coolant needs to be increased, a control valve 24 installed on the bypass channel 23 is closed to shut off a communication, Wt is increased, and which thus prevents boiling of the coolant circulating through the exhaust manifold 110.
    • 要解决的问题:提供一种内燃机的冷却装置,其防止循环通过排气歧管的冷却剂的沸腾。 发动机冷却系统1包括:冷却剂循环通道22,其使冷却剂循环通过安装在排气歧管110上的水套111; 以及从冷却剂循环通道22分支以绕过水套111的旁通通道23.另外,系统基于发动机输出预测冷却剂和水套111之间的热交换部的温度变化 和通过水套111(Ti)循环的冷却剂量(Wt)的量; 并且根据预测结果确定需要增加从水套111循环的冷却剂的量。 当确定需要增加冷却剂的量时,安装在旁通通道23上的控制阀24被关闭以阻止通信,Wt增加,从而防止通过排气歧管循环的冷却剂的沸腾 (C)2012年,JPO&INPIT
    • 7. 发明专利
    • Particulate matter processing device
    • 颗粒物加工装置
    • JP2013245659A
    • 2013-12-09
    • JP2012122306
    • 2012-05-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • MITANI SHINICHINOMURA HIROSHI
    • F02D41/04F02D45/00
    • PROBLEM TO BE SOLVED: To provide a particulate matter processing device capable of preventing a drop in fuel consumption for the condensation of particulate matters.SOLUTION: In a particulate matter processing device having an electrode capable of changing an applied voltage while being arranged on an exhaust passage of an internal combustion engine, a detection device for detecting a current passing through the electrode, a voltage control device for making adjustment to raise the applied voltage to the electrode within a range where no pulse current is generated in the current detected by the detection device, an in-cylinder injection valve for injecting fuel in a cylinder of the internal combustion engine, and an in-passage injection valve for injecting the fuel in an air intake passage of the internal combustion engine, an amount of fuel injected from the in-cylinder injection valve is reduced as an amount of current conduction to the electrode is increased, and an amount of fuel injected from the in-passage injection valve is increased.
    • 要解决的问题:提供一种能够防止颗粒物冷凝的燃料消耗下降的颗粒物质处理装置。解决方案:在具有能够在排气排列时能够改变施加电压的电极的颗粒物质处理装置中 内燃机的通过,用于检测通过电极的电流的检测装置,用于进行调节的电压控制装置,以在由检测检测到的电流中不产生脉冲电流的范围内升高对电极的施加电压 装置,用于在内燃机的气缸中喷射燃料的缸内喷射阀,以及用于将燃料喷射到内燃机的进气通道中的通道内喷射阀, 当电极的电流传导量增加时,气缸喷射阀减少,燃料量i增加 从通道内注射阀注射的量增加。
    • 8. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2013142305A
    • 2013-07-22
    • JP2012002206
    • 2012-01-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • MITANI SHINICHIMURASE EIJITSUKAKOSHI TAKAHIROMATSUDA KAZUHISA
    • F02D19/08F02D41/34F02D45/00
    • F02D41/3094F02D19/084F02D19/087F02D41/047F02D41/062F02D2200/0611Y02T10/36
    • PROBLEM TO BE SOLVED: To improve air-fuel ratio controllability when starting, by simultaneously using intake passage injection by considering a characteristic of alcohol fuel, while securing startability by cylinder injection.SOLUTION: An ECU 50 injects fuel only from a cylinder injection valve 28 in at least a first cycle when starting an engine, and simultaneously uses fuel injection of an intake passage injection valve 26 on and after a second cycle. When an alcohol concentration in the fuel is a predetermined value or more, a portion of the fuel injected from the intake passage injection valve 26 in the second cycle, is injected from the intake passage injection valve 26 by moving up to the first cycle. Thus, even when the alcohol concentration in the fuel is high, a portion of an intake passage injection quantity of becoming excessive in the second cycle, is moved up to the first cycle, and this fuel can be burnt in the second cycle by a transport delay, and quantity of fuel to be burnt in the respective cycles can be properly controlled.
    • 要解决的问题:为了提高起动时的空燃比控制性,通过考虑醇燃料的特性同时使用进气通道喷射,同时通过气缸喷射确保启动性。解决方案:ECU50仅从气缸喷射阀28喷射燃料 在起动发动机时的至少第一循环中,并且同时在第二循环之
      间和之后使用进气通道喷射阀26的燃料喷射。 当燃料中的酒精浓度为预定值以上时,从进气通道喷射阀26在第二循环中喷射的燃料的一部分从进气通道喷射阀26通过向上移动直到第一循环来喷射。 因此,即使当燃料中的醇浓度高时,在第二循环中进入通道喷射量变得过大的部分被移动到第一循环,并且该燃料可以在第二循环中通过运输 可以适当地控制延迟和在各循环中燃烧的燃料量。
    • 9. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2013142301A
    • 2013-07-22
    • JP2012002090
    • 2012-01-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • MITANI SHINICHIMURASE EIJITSUKAKOSHI TAKAHIROMATSUDA KAZUHISA
    • F02D41/06F02D19/08F02D41/02F02D41/34F02D45/00F02M63/00
    • PROBLEM TO BE SOLVED: To excellently hold combustibility, even if an estimation error of an alcohol concentration exists when starting.SOLUTION: An ECU 50 injects fuel exceeding an allowable limit in a transport delay out of fuel tried to be injected from an intake passage injection valve 26, from a cylinder injection valve 28 as a transport delay increase quantity, when simultaneously using intake passage injection and cylinder injection when starting an engine. Thus, even when an estimation error is caused when estimating an alcohol concentration in the fuel, a cylinder injection quantity for improving startability can be increased. Thus, influence of the estimation error on an intake passage injection quantity and a transport delay increase quantity is restrained, and starting time combustibility can be excellently held. A variation in the air-fuel ratio and the deterioration in exhaust emission caused by the transport delay of the intake passage injection are restrained, and the startability and an exhaust characteristic can be improved.
    • 要解决的问题:即使在启动时存在酒精浓度的估计误差,也能够保持可燃性。解决方案:ECU 50将超过允许极限的燃料从运行延迟中喷出,从尝试从进气通道注入喷射的燃料 阀26,作为输送延迟增加量,来自气缸喷射阀28,同时在起动发动机时同时使用进气通道喷射和气缸喷射。 因此,即使当估计燃料中的酒精浓度时发生估计误差时,也可以提高用于提高启动性的气缸喷射量。 因此,抑制了估计误差对进气通道喷射量和运送延迟增加量的影响,并且可以良好地保持起动时间可燃性。 抑制由于进气通道喷射的输送延迟引起的空燃比的变化和废气排放的劣化,能够提高起动性和排气特性。
    • 10. 发明专利
    • Engine control unit of internal combustion engine
    • 内燃机发动机控制单元
    • JP2013119822A
    • 2013-06-17
    • JP2011268774
    • 2011-12-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • MITANI SHINICHIMURASE EIJITSUKAKOSHI TAKAHIROMATSUDA KAZUHISA
    • F02P5/15
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To suitably control ignition timing for catalyst warmup on the basis of an alcohol concentration even if the alcohol concentration in fuel is varied.SOLUTION: The ECU 50 executes second catalyst warmup control after first catalyst warmup control is executed at the ignition retard angle permissible number α after starting the engine. In the first catalyst warmup control, an ignition action is executed while an amount of a retard angle of ignition timing is reduced than that of the second catalyst warmup control. An amount of an ignition retard angle is considerably retarded on the second catalyst warmup control on the basis of the alcohol concentration. Even though errors are contained in an acquired value of the alcohol concentration caused by refueling, such the errors can be prevented from being reflected to the ignition timing at an early stage of the catalyst warmup control. Consequently, catalyst warmup control can be performed at an optimal state in the internal combustion engine using alcohol fuel, and a catalyst can be effectively warmed up.
    • 要解决的问题:为了适当地控制基于醇浓度的催化剂预热的点火正时,即使燃料中的醇浓度变化。 解决方案:ECU50在启动发动机之后以点火延迟角许可数α执行第一催化剂预热控制之后执行第二催化剂预热控制。 在第一催化剂预热控制中,当点火正时的延迟角的量比第二催化剂预热控制的点降低时,执行点火动作。 基于醇浓度,第二催化剂预热控制上的点燃延迟角的量显着延迟。 即使在由加油引起的酒精浓度的获取值中包含误差,因此可以防止在催化剂预热控制的早期阶段反映到点火正时的误差。 因此,可以使用醇燃料在内燃机的最佳状态下进行催化剂预热控制,能够有效地预热催化剂。 版权所有(C)2013,JPO&INPIT