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    • 1. 发明专利
    • Cooling device for internal combustion engine
    • 内燃机用冷却装置
    • JP2013007310A
    • 2013-01-10
    • JP2011139801
    • 2011-06-23
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKATANI KOICHIROYAMASHITA AKIRA
    • F01P11/14F01P7/16
    • PROBLEM TO BE SOLVED: To provide a technique for efficiently using a specific heat change band in the lowest temperature region, when using cooling water having specific heat change bands in a plurality of temperature regions.SOLUTION: This cooling device for an internal combustion engine uses cooling water having specific heat change bands while specific heat changes in a plurality of temperature regions and controls the cooling water in a plurality of target temperature states using the specific heat change bands. A permissible heat receiving amount permissible by the change in specific heat in the specific heat change band of the lowest temperature region is larger than those in the other specific heat change bands.
    • 要解决的问题:提供一种用于在多个温度区域中使用具有比热变换带的冷却水时,在最低温度区域中有效地使用比热变换带的技术。 解决方案:该内燃机用冷却装置使用具有比热变化的冷却水,同时在多个温度区域进行比热改变,并使用比热变换带控制多个目标温度状态下的冷却水。 最低温度区域的比热变化带中的比热变化允许的允许热量大于其他比热变换带的允许热容量。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Internal combustion engine cooling system
    • 内燃机冷却系统
    • JP2012102628A
    • 2012-05-31
    • JP2010249751
    • 2010-11-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKATANI KOICHIROYAMASHITA AKIRASAODA TAKENORI
    • F01P7/16
    • PROBLEM TO BE SOLVED: To optimize an open-and-close condition of a thermostat.SOLUTION: An internal combustion engine cooling system 1 circulates a coolant to a coolant passage 12 of which the specific heat is increased higher at a plurality of predetermined temperatures than at other than the predetermined temperature. The system includes: a radiator 13; a bypass passage 14 for bypassing the radiator 13; the thermostat 15; and a control device 30 which opens the thermostat 15 at any of the plurality of predetermined temperatures and changes a temperature of opening the thermostat 15 according to an operation condition of the internal combustion engine 1.
    • 要解决的问题:优化恒温器的开启和关闭状态。 解决方案:内燃机冷却系统1将冷却剂循环到冷却剂通道12,其比热比预定温度以外的多个预定温度更高地增加比热。 该系统包括:散热器13; 用于旁路散热器13的旁路通路14; 恒温器15; 以及控制装置30,其以多个预定温度中的任何一个打开恒温器15,并根据内燃机1的操作条件改变打开恒温器15的温度。版权所有:(C)2012,JPO&INPIT
    • 3. 发明专利
    • Foreign matter collection device for low pressure egr passage
    • 用于低压EGR通道的外部收集装置
    • JP2010242662A
    • 2010-10-28
    • JP2009093800
    • 2009-04-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • OKI HISASHIYAMASHITA AKIRASAODA TAKENORI
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a technique of controlling an increase in pressure loss in a foreign matter collection device for low pressure EGR passage while sufficiently achieving an effect of collecting foreign matters.
      SOLUTION: The foreign matter collection device for low pressure EGR passage includes: a vessel 41 disposed in a low pressure EGR passage; a separation plate 42 against which an inflow gas stream C1 flowing from the low pressure EGR passage upstream of the vessel 41 is hit; a foreign matter collection part 43 which collects a foreign matter contained in the inflow gas stream C1 and hit against the separation plate 42; and a filter 44 which is disposed on a wall of the foreign matter collection part 43 and through which a foreign matter collection part circulating gas stream C2 circulating in the foreign matter collection part 43 flows out of the foreign matter collection part 43; and a gas circulation passage 45 through which a bypass gas stream C3 bypassing the separation plate 42 and the foreign matter collection part 43 circulates from the low pressure EGR passage upstream of the vessel 41 to the low pressure EGR passage downstream of the vessel 41.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种控制在低压EGR通路的异物收集装置中的压力损失增加的技术,同时充分实现收集异物的效果。 解决方案:用于低压EGR通道的异物收集装置包括:设置在低压EGR通道中的容器41; 撞击从容器41上游的低压EGR通道流入的流入气流C1的分离板42; 异物收集部分43,其收集流入气流C1中包含的异物并撞击分离板42; 以及设置在异物收集部43的壁上的过滤器44,异物收集部43中流出的异物收集部循环气流C2从该异物收集部43流出。 以及旁通气体流C3绕过分离板42和异物收集部分43的气体循环通道45,从容器41的上游的低压EGR通道循环到容器41下游的低压EGR通路。 P>版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Intake air leakage detection system for internal combustion engine
    • 内燃机空气泄漏检测系统
    • JP2010242640A
    • 2010-10-28
    • JP2009092991
    • 2009-04-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMASHITA AKIRAOKI HISASHI
    • F02D9/02F02M35/10F02M35/104
    • PROBLEM TO BE SOLVED: To suppress the deterioration of detection accuracy caused by intake air pressure fluctuation, in a system for detecting intake air leakage from an internal combustion engine.
      SOLUTION: This intake air leakage detection system for the internal combustion engine includes: a first throttle valve disposed in the intake passage of the internal combustion engine; a second throttle valve disposed in an intake passage downstream of the first throttle valve; an intake pressure sensor acquiring pressure downstream of the second throttle valve; and a detection means performing vacuum processing for controlling the first throttle valve to a fully closed state to set a portion downstream of the first throttle valve in a vacuum state, and also detecting the intake air leakage based on intake pressure detected by the intake pressure sensor during the vacuum processing. The detection means damps intake pulsation by controlling the opening of the second throttle valve to a predetermined opening smaller than the fully opened state and larger than the fully closed state when performing the vacuum processing.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:在用于检测来自内燃机的进气泄漏的系统中,抑制由进气压力波动引起的检测精度的劣化。 该解决方案:该内燃机的进气泄漏检测系统包括:设置在内燃机的进气通道中的第一节流阀; 第二节流阀,设置在第一节流阀下游的进气通道中; 进气压力传感器,其获取第二节流阀下游的压力; 以及执行真空处理的检测装置,用于将第一节流阀控制到完全关闭状态,以将第一节气门的下游部分设定在真空状态,并且还基于由进气压力传感器检测到的进气压力来检测进气泄漏 在真空加工过程中。 检测装置通过在执行真空处理时将第二节流阀的打开控制到比完全打开状态小的预定开口并且大于完全关闭状态来减小进气脉动。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Abnormality detection system for internal combustion engine
    • 内燃机异常检测系统
    • JP2010242617A
    • 2010-10-28
    • JP2009092165
    • 2009-04-06
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMASHITA AKIRA
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a technology for determining the generation of leakage in an intake system and an exhaust system in an internal combustion engine having a low pressure EGR device. SOLUTION: An abnormality detection system detects that any abnormality occurs in an intake system or an exhaust system in the case in which a low pressure EGR valve is fully open during fuel cut, an exhaust throttle valve provided downstream of the branch portion of a low pressure EGR passage is fully closed, the measurement Pim of an intake air pressure by a pressure sensor provided in an intake air passage is equal to or smaller than a predetermined reference value Pimth, and the measured value Ga of air amount by an air flow sensor is equal to or larger than a predetermined reference value Gath. When an abnormality is detected, the detected abnormality is determined as an exhaust air leakage in the case where the low pressure EGR valve is fully closed, and the measured value Pex of an exhaust air pressure by a pressure sensor provided in an exhaust air passage is equal to or smaller than a predetermined reference value Pexth. The detected abnormality is determined as an intake air leakage in the other cases. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于确定具有低压EGR装置的内燃机中的进气系统和排气系统中的泄漏的产生的技术。 解决方案:异常检测系统检测在燃料切断期间低压EGR阀完全打开的情况下,在进气系统或排气系统中发生异常的情况,设置在分支部分的下游的排气节流阀 低压EGR通路完全关闭,由进气通道中设置的压力传感器的进气压力的测量Pim等于或小于预定基准值Pimth,空气量的测量值Ga由空气 流量传感器等于或大于预定参考值Gath。 当检测到异常时,在低压EGR阀完全关闭的情况下,检测到的异常被确定为排气泄漏,并且通过设置在排气通道中的压力传感器的排气压力的测量值Pex为 等于或小于预定参考值Pexth。 在其他情况下,检测到的异常被确定为进气泄漏。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Foreign material catching device
    • 外部材料采集设备
    • JP2010156242A
    • 2010-07-15
    • JP2008334280
    • 2008-12-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • KOYAMA TAKASHIYAMASHITA AKIRA
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To prevent the stay of condensed water in a foreign material catching device.
      SOLUTION: The foreign material catching device 34 provided in an EGR passage 31, which connects an intake passage and an exhaust passage of an internal combustion engine to each other so as to catch a foreign material contained in EGR gas includes a heating means 41 for heating the foreign material catching device 34. Since the temperature of the foreign material catching device 34 can be raised higher than a dew point temperature by heating the foreign material catching device 34 by the heating means 41, the generation of condensed water in the foreign material catching device 34 can be restricted.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:防止冷凝水在异物捕获装置中停留。 解决方案:设置在将内燃机的进气通道和排气通道彼此连接以便捕获包含在EGR气体中的异物的EGR通道31中的异物捕获装置34包括加热装置 41,用于加热异物捕获装置34.由于通过加热装置41加热异物捕获装置34可以使异物捕获装置34的温度升高到高于露点温度,因此在 可以限制异物捕获装置34。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Egr system for internal combustion engine
    • 内燃机EGR系统
    • JP2010151111A
    • 2010-07-08
    • JP2008333253
    • 2008-12-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMASHITA AKIRA
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide technology capable of certainly removing clogging of a capturing device while suppressing deterioration of fuel economy, in an EGR system provided with the capturing device for capturing foreign matter in an EGR gas on a midway of an EGR passage. SOLUTION: The EGR system for the internal combustion engine is provided with the EGR passage; the capturing device provided on the EGR passage and capturing the foreign matter contained in the EGR gas; an exhaust temperature obtaining means for obtaining a temperature of the exhaust gas flowing into the capturing device; a soot deposition amount obtaining means for obtaining a deposition amount of soot in the capturing device; a pressure loss obtaining means for obtaining pressure loss in the capturing device; a removal means for removing an exhaust component deposited in the capturing device by temperature-raising the capturing device when it is detected that the pressure loss obtained by the pressure loss obtaining means exceeds a predetermined reference value; and a setting means for setting a target temperature when the removal means temperature-raises the capturing device according to the temperature obtained by the exhaust temperature obtaining means and the deposition amount obtained by the soot deposition amount obtaining means. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供能够有效地消除捕获装置的堵塞同时抑制燃料经济性的劣化的技术,在设置有用于在EGR中途的EGR气体中捕获异物的捕获装置的EGR系统中 通道。 解决方案:用于内燃机的EGR系统设置有EGR通道; 所述捕获装置设置在所述EGR通路上并且捕获包含在所述EGR气体中的异物; 排气温度获取装置,用于获得流入捕获装置的废气的温度; 用于获取捕获装置中的烟灰沉积量的烟灰沉积量获取装置; 用于获取捕获装置中的压力损失的压力损失获取装置; 去除装置,用于当检测到压力损失获得装置获得的压力损失超过预定参考值时,通过升温捕获装置来去除在捕获装置中沉积的排气部件; 以及设定装置,用于当除去装置根据由排气温度获得装置获得的温度升高捕获装置和由烟灰沉积量获得装置获得的沉积量时,设定目标温度。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2009209816A
    • 2009-09-17
    • JP2008054666
    • 2008-03-05
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMASHITA AKIRA
    • F02D23/00F02B37/00F02B37/24F02D21/08F02D23/02F02D41/02F02D41/04F02D43/00F02D45/00F02M25/07
    • Y02T10/144
    • PROBLEM TO BE SOLVED: To suppress damage to a compressor due to the inflow of a liquid into the compressor, in a control device of an internal combustion engine. SOLUTION: This control device of the internal combustion engine comprises a turbocharger, a low-pressure EGR device, and a liquid level detection sensor. When the liquid level detected by the liquid level sensor is equal to or higher than a predetermined level (S103-Yes), and a cavitation may occur, a low-pressure EGR gas recirculated using the low-pressure EGR device is reduced when the low-pressure EGR gas is recirculated using the low-pressure EGR device (S105), and the supercharging pressure of a turbocharger is reduced by a control determined according to whether or not the low-pressure EGR gas is recirculated using the low-pressure EGR device (S106, S108). COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:在内燃机的控制装置中,抑制由于液体进入压缩机而导致的压缩机的损坏。 解决方案:内燃机的该控制装置包括涡轮增压器,低压EGR装置和液位检测传感器。 当由液位传感器检测到的液位等于或高于预定水平时(S103-Yes),并且可能发生气穴现象,使用低压EGR装置再循环的低压EGR气体在低 压缩EGR气体使用低压EGR装置再循环(S105),并且通过根据低压EGR气体是否使用低压EGR装置再循环确定的控制来减小涡轮增压器的增压压力 (S106,S108)。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Cooling device for internal combustion engine
    • 内燃机用冷却装置
    • JP2009185673A
    • 2009-08-20
    • JP2008025644
    • 2008-02-05
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMASHITA AKIRA
    • F02B29/04F01P11/14F02M25/07
    • Y02T10/121Y02T10/146
    • PROBLEM TO BE SOLVED: To provide a cooling device for an internal combustion engine capable of detecting the occurrence of abnormality due to corrosion of the cooling device.
      SOLUTION: This cooling device for the internal combustion engine includes: a tube material formed out of a conductive core material and a conductive coating material; an electric potential difference acquisition means acquiring electric potential difference between the core material and the coating material; and an abnormality detection means detecting occurrence of abnormality due to corrosion of the tube material if an acquired value acquired by the electric potential difference acquisition means is continuously kept lower than a first abnormality judgment value predetermined in a range of electric potential difference during formation of the tube material for a prescribed period of time or longer.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够检测由于冷却装置的腐蚀引起的异常的发生的内燃机的冷却装置。 解决方案:该内燃机的冷却装置包括:由导电芯材和导电涂层材料形成的管材; 电位差获取装置获取芯材和涂层材料之间的电位差; 以及异常检测装置,如果在电位差获取装置获取的获取值连续保持低于形成电位差的电位差范围内预定的第一异常判断值,则检测由于管材的腐蚀引起的异常的发生 管材规定时间或更长时间。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Valve device for high-pressure tank and fuel cell system
    • 用于高压罐和燃料电池系统的阀装置
    • JP2009168166A
    • 2009-07-30
    • JP2008007338
    • 2008-01-16
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMASHITA AKIRA
    • F17C13/04F16K31/06H01M8/04H01M8/10
    • Y02E60/321
    • PROBLEM TO BE SOLVED: To enhance filling efficiency of hydrogen gas into a hydrogen tank by reducing the number of high pressure pipes connected to a high pressure valve for a hydrogen tank as much as possible. SOLUTION: A valve system for high pressure tank which includes a high pressure valve 51, is equipped with a gas flow path 511 for forcing hydrogen gas stored in the hydrogen tank to be supplied thereoutside and a hydrogen gas to be stored in the hydrogen tank to flow thereinto from the outside of the hydrogen tank 50, a solenoid valve 52 for cutting off or allowing the supply of hydrogen gas to the outside of the hydrogen tank from thereinside and Peltier element mounted on the outer surface of the hydrogen tank to supply current to the solenoid valve 52 in response to the temperature rise of the hydrogen tank. The solenoid valve 52 include a solenoid coil 523 for moving a valve element 521 by electromagnetic force. When current is supplied to the solenoid coil through the Peltier element, the valve element is moved in a valve opening direction in accordance with the amount of the current. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过尽可能减少连接到氢罐的高压阀的高压管的数量来提高氢气进入氢气罐的填充效率。 解决方案:包括高压阀51的用于高压罐的阀系统配备有用于迫使储存在氢气箱中的氢气被供应到外侧的气体流路511和要存储在氢气罐中的氢气 氢罐从氢罐50的外部流入,用于切断或允许氢气从其内部供应到氢罐外部的电磁阀52和安装在氢罐外表面上的珀尔帖元件至 响应于氢罐的温度升高向电磁阀52提供电流。 电磁阀52包括用于通过电磁力移动阀元件521的螺线管线圈523。 当电流通过珀耳帖元件提供给螺线管线圈时,阀元件根据电流的量在阀打开方向上移动。 版权所有(C)2009,JPO&INPIT