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31. 发明专利

JP2004156498A Evaporated fuel treatment device of internal combustion engine 有权
公开(公告)号：JP2004156498A
公开(公告)日：2004-06-03
申请号：JP2002321687
申请日：2002-11-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MATSUBARA TAKUJI , KIDOKORO TORU , HYODO YOSHIHIKO
IPC分类号： F02M25/08 , G01M99/00
CPC分类号： F02M25/0818
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device for correctly diagnosing an opening malfunction of a closing valve provided in a passage to communicate a canister with a fuel tank by a simple control.
SOLUTION: A closing valve 28 is provided between a fuel tank 10 and a canister 26. A pump module pressure sensor 86 to detect the canister side pressure and a tank internal pressure sensor 12 to detect the tank internal pressure are provided. It is determined that no opening malfunction occurs in the closing valve 28 if a significant differential pressure is detected between the canister side pressure and the tank internal pressure.
COPYRIGHT: (C)2004,JPO

32. 发明专利

JP2004156493A Evaporated fuel treatment device of internal combustion engine 有权
公开(公告)号：JP2004156493A
公开(公告)日：2004-06-03
申请号：JP2002321658
申请日：2002-11-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KIDOKORO TORU , MATSUBARA TAKUJI , HYODO YOSHIHIKO
IPC分类号： F02M25/08 , F02M37/00 , G01M99/00
CPC分类号： F02M25/0809 , F02M25/0827
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device for efficiently performing failure diagnosis of a closing valve to seal a fuel tank with high accuracy. SOLUTION: A closing valve 28 is provided between a fuel tank 10 and a canister 26. A purge VSV 36 is provided between the canister 26 and an air intake passage 38. A pump module unit 52 to introduce the negative pressure inside the canister 26 is provided. Negative pressure is introduced into the canister 26 while the purge VSV 36 and the closing valve 28 are closed. An opening malfunction of the closing valve 26 is diagnosed based on the canister side pressure Pc. A closed malfunction of the closing valve 26 is diagnosed by utilizing the differential pressure generated on both sides of the closing valve 26 associated with the opening malfunction. COPYRIGHT: (C)2004,JPO

33. 发明专利

JP2003042338A Leak preventing structure for back pressure chamber of diaphragm valve 审中-公开
标题翻译：背压阀背压室的泄漏防止结构
公开(公告)号：JP2003042338A
公开(公告)日：2003-02-13
申请号：JP2001233645
申请日：2001-08-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YOSHIOKA MAMORU , HYODO YOSHIHIKO , MORI NOBUHISA
IPC分类号： F02M55/02 , F02M69/00 , F16K17/04 , F16K51/00
摘要： PROBLEM TO BE SOLVED: To prevent a leak from a back pressure chamber of a diaphragm type pressure control valve.
SOLUTION: A valve element 30 is provided to communicate the back pressure chamber 11 formed inside of a casing 5 of a pulsation damper 1 having a diaphragm 10 with the atmospheric air through an atmospheric air port 15 of the casing and to close the atmospheric air port when the pressure of the pressure chamber 13 in the casing is lowered. A cap cover 17 is fitted on the outer surface of the casing 5 to cover the atmospheric air port 15. The outside air is led into the atmospheric air port through a clearance 23 between the cap cover and the casing outer surface, and a filter 20 is interposed between the cap cover and the casing end surface to filter the air flowing from the clearance.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：防止隔膜式压力控制阀的背压室泄漏。解决方案：提供一种阀元件30，用于将具有隔膜10的脉动阻尼器1的壳体5内的背压室11与大气通过壳体的大气孔15连通，并将大气空气口当壳体中的压力室13的压力降低时。盖罩17安装在壳体5的外表面上以覆盖大气空气口15.外部空气通过盖罩和壳体外表面之间的间隙23被引导到大气空气端口中，并且过滤器20 插入在盖罩和壳体端面之间以过滤从间隙流出的空气。

34. 发明专利

JP2008128012A Air-fuel ratio detection apparatus 审中-公开
标题翻译：空气燃料比检测装置
公开(公告)号：JP2008128012A
公开(公告)日：2008-06-05
申请号：JP2006310726
申请日：2006-11-16
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： WATANABE NAOHISA , HYODO YOSHIHIKO
IPC分类号： F02D41/14 , F01N3/24 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio detection apparatus that allows air-fuel ratio to be detected with a good accuracy in an air-fuel ratio detection apparatus for detecting an air-fuel ratio of exhaust gas at downstream side from installation position of catalyst in an exhaust route. SOLUTION: The air-fuel ratio detection apparatus includes methane concentration detecting and estimating means (13, 20) for detecting and estimating the concentration of methane in an exhaust gas at downstream side from the installation position of a catalyst 12 in an exhaust route 11, and a downstream side air-fuel ratio detecting means 14 for detecting an air-fuel ratio of exhaust gas at downstream side form the installed position of the catalyst in the exhaust route, wherein an air-fuel ratio of exhaust gas at the downstream side detected by the downstream side air-fuel ratio detecting means is corrected, based on the concentration of methane detected or estimated by the methane concentration detecting and estimating means. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种空燃比检测装置，其能够在用于检测下游的排气的空燃比的空燃比检测装置中以高精度检测空燃比一侧处于催化剂在排气路径中的安装位置。解决方案：空燃比检测装置包括甲烷浓度检测和估计装置（13,20），用于检测和估计在排气中的催化剂12在排气中的安装位置的下游侧的排气中的甲烷浓度路线11，以及用于检测下游侧排气的空燃比的下游侧空燃比检测机构14，形成排气路径中的催化剂的安装位置，其中，排气的排气的空燃比基于由甲烷浓度检测和估计装置检测或估计的甲烷的浓度来校正由下游侧空燃比检测装置检测的下游侧。版权所有（C）2008，JPO＆INPIT

35. 发明专利

JP2007315271A Exhaust emission control device of internal combustion engine 审中-公开
标题翻译：内燃机排气控制装置
公开(公告)号：JP2007315271A
公开(公告)日：2007-12-06
申请号：JP2006145096
申请日：2006-05-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HYODO YOSHIHIKO , WATANABE NAOHISA
IPC分类号： F01N3/20 , F01N3/08 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine equipped with a conversion catalyst for converting components in exhaust gas and raising catalyst temperature to an active temperature as soon as possible after engine starting. SOLUTION: A HC holding material 12 and the conversion catalyst 13 for oxidizing and converting CO and converting at least one component other than CO are equipped in an exhaust passage. Provided that a temperate at which the conversion catalyst oxidizes and converts CO is referred to as a CO converting temperature and a temperature at which the conversion catalyst converts the component other than CO is referred to as the active temperature, the conversion catalyst holds CO when the active temperature is higher than the CO converting temperature and the catalyst temperature is lower than the CO converting temperature. While the catalyst temperature is lower than the CO converting temperature in engine starting, an air-fuel ratio of a mixture is controlled to be rich and the exhaust gas is caused to flow in the conversion catalyst after it passes through the HC holding material. When the catalyst temperature becomes higher than the CO converting temperature, the air-fuel ratio of the mixture is controlled to be lean and the exhaust gas is caused to flow in at least the conversion catalyst. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决问题：提供一种内燃机的废气排放控制装置，该内燃机配备有用于在发动机起动之后尽可能快地将废气中的组分转化并将催化剂温度升高至活性温度的转化催化剂。解决方案：排气通道中装有HC保持材料12和用于氧化和转化CO并转化至少一种除CO以外的成分的转化催化剂13。假设转化催化剂氧化并转化为CO的温度称为CO转化温度，将转化催化剂将除CO以外的成分转化为的温度称为活性温度，则当转化催化剂保持CO时活性温度高于CO转化温度，催化剂温度低于CO转化温度。在催化剂温度低于发动机起动时的CO转化温度的情况下，将混合气的空燃比控制为浓，并且使废气在通过HC保持材料后在转化催化剂中流动。当催化剂温度变得高于CO转化温度时，混合物的空燃比被控制为贫，并且排气至少在转化催化剂中流动。版权所有（C）2008，JPO＆INPIT

36. 发明专利

JP2006231250A Exhaust gas purifying apparatus 审中-公开
标题翻译：排气净化装置
公开(公告)号：JP2006231250A
公开(公告)日：2006-09-07
申请号：JP2005051967
申请日：2005-02-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： WATANABE NAOHISA , HYODO YOSHIHIKO
IPC分类号： B01D53/94 , B01J35/02 , F01N3/10 , F01N3/24 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas purifying apparatus constituted so as to enhance the catalytic purifying capacity on the downstream side of an exhaust gas flowing direction without increasing the amount of an expensive noble metal used and capable of developing a good purifying capacity especially even in a case that the temperature of a catalyst bed is low. SOLUTION: The exhaust gas purifying apparatus is equipped with the catalyst 100A on an upstream side and the catalyst 100B on a downstream side both of which are arranged in the exhaust gas passage of an internal combustion engine along an exhaust gas flowing direction. The catalyst 100A on the upstream side is formed from a three-dimensional structural coating layer 102 which is formed by coating a base material layer 101 with carrier particles on which a noble metal is supported and the catalyst 100B on the downstream side is formed from a planar structural coating layer 112 formed by supporting a noble metal on a coating layer, which is formed by coating a base material layer 111 with carrier particles, as a surface layer part 113. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种排气净化装置，其构成为提高废气流动方向的下游侧的催化净化能力，而不增加使用昂贵的贵金属的量并能够显现良好的特别是即使在催化剂床的温度低的情况下也能够进行净化。解决方案：废气净化装置在上游侧配备有催化剂100A，在其下游侧具有沿排气流动方向配置在内燃机的排气通路中的催化剂100B。上游侧的催化剂100A由三维结构涂层102形成，该三维结构涂层102是通过用载体颗粒涂覆基材层101而形成的，其上载有贵金属的载体颗粒，下游侧的催化剂100B由通过将通过用载体颗粒涂覆基材层111而形成的涂层上的贵金属负载形成的平面结构涂层112作为表面层部113.权利要求（C）2006，JPO＆NCIPI

37. 发明专利

JP2006170074A Evaporated fuel treatment device 审中-公开
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2006170074A
公开(公告)日：2006-06-29
申请号：JP2004363471
申请日：2004-12-15
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HYODO YOSHIHIKO , YOSHIOKA MAMORU
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To enhance efficiency in a system and suppress release of evaporated fuel into the atmosphere by idealizing the operation time of a pump for introducing pressure into an evaporated fuel route according to atmospheric pressure. SOLUTION: The evaporated fuel treatment device is equipped with a fuel tank 10, a canister 12 connected to the fuel tank 10 for adsorbing evaporated fuel occurring inside the fuel tank 10, a negative pressure pump 38 for introducing negative pressure to a closed space including the fuel tank 10 via the canister 12, a pressure sensor 40 for detecting pressure of the closed space wherein negative pressure is introduced in the closed space by the negative pressure pump 38, a determining means for determining the state of leakage in the closed space including the fuel tank 10 based on the pressure detected by the pressure sensor 40, an atmospheric sensor 52 for obtaining atmospheric pressure, and an upper limit time setting means for setting the upper limit time of the operation of the negative pressure pump 38 according to the atmospheric pressure. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过理想化根据大气压将压力引入蒸发燃料路径的泵的操作时间来提高系统的效率并抑制蒸发的燃料的释放。解决方案：蒸发燃料处理装置配备有燃料箱10，连接到燃料箱10的用于吸收燃料箱10内部的蒸发燃料的罐12，用于将负压引入封闭的负压泵38 通过罐12包括燃料箱10的空间，用于检测封闭空间的压力的压力传感器40，其中负压由负压泵38引入封闭空间中;确定装置，用于确定封闭状态下的泄漏状态根据由压力传感器40检测到的压力，包含用于获得大气压力的大气传感器52的燃料箱10的空间，以及用于设定负压泵38的运转的上限时间的上限时间设定装置，根据大气压力。版权所有（C）2006，JPO＆NCIPI

38. 发明专利

JP2004308484A Evaporated fuel treatment device for internal combustion engine 有权
公开(公告)号：JP2004308484A
公开(公告)日：2004-11-04
申请号：JP2003100453
申请日：2003-04-03
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KIDOKORO TORU , MATSUBARA TAKUJI , HYODO YOSHIHIKO
IPC分类号： F02M25/08 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device for an internal combustion engine capable of maintaining a sealing valve for sealing a fuel tank in a non-current carrying condition when operation load beyond inference is applied on the sealing valve.
SOLUTION: A vapor passage 20 communicating with the fuel tank 10 is provided. The sealing valve 28 controlling a vapor passing condition in the vapor passage 20 is provided. A tank internal pressure sensor 12 detecting tank internal pressure Ptnk is provided. If tank internal pressure Ptnk exceeds a target upper limit value, the sealing valve 28 is opened to reduce tank internal pressure Ptnk. If operation load of the sealing valve 28 exceeds a determination value, current carrying to the sealing valve 28 is inhibited irrespective of tank internal pressure Ptnk to protect the sealing valve 28.
COPYRIGHT: (C)2005,JPO&NCIPI

39. 发明专利

JP2003278610A Abnormality diagnostic device for evaporated fuel processing device 有权
标题翻译：用于蒸发燃料加工装置的异常诊断装置
公开(公告)号：JP2003278610A
公开(公告)日：2003-10-02
申请号：JP2002078894
申请日：2002-03-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MATSUOKA TAKUYA , HYODO YOSHIHIKO , TAKAGI NAOYA
IPC分类号： G01M3/26 , F02D29/02 , F02D45/00 , F02M25/08
摘要： PROBLEM TO BE SOLVED: To prevent an erroneous leakage diagnosis from being performed due to influence of atmospheric pressure fluctuation caused by a tunnel traveling, etc., regarding an abnormality diagnostic device for an evaporated fuel processing device.
SOLUTION: This device is provided with a relative pressure sensor for detecting pressure within a prescribed system including a fuel tank as a relative pressure to the atmospheric pressure. When an execution condition of the leakage diagnosis is established (step 100), the system is blocked after introducing negative pressure. Subsequently, the abnormality diagnosis of the system is performed based on a sensor output of the relative pressure sensor at prescribed decision timing. When a GPS signal is not received (step 104) and speed is higher than a prescribed value (step 106) after blocking the system (step 102), a vehicle is judged to be traveling in a tunnel and the execution of the leakage diagnosis is interrupted (step 108).
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了防止由于蒸汽燃料处理装置的异常诊断装置引起的隧道行驶等引起的大气压力波动的影响而导致的错误泄漏诊断。解决方案：该装置设置有相对压力传感器，用于检测包括作为大气压的相对压力的燃料箱的规定系统内的压力。当建立泄漏诊断的执行条件（步骤100）时，在引入负压之后系统被阻塞。随后，在规定的判定时刻，基于相对压力传感器的传感器输出进行系统的异常诊断。在阻止系统（步骤102）之后没有接收到GPS信号（步骤104）和速度高于规定值（步骤106）的情况下，车辆被判断为在隧道中行驶，并且执行泄漏诊断为中断（步骤108）。版权所有（C）2004，JPO

40. 发明专利

JP2003278590A Evaporative fuel processing device 审中-公开
标题翻译：蒸发燃料加工装置
公开(公告)号：JP2003278590A
公开(公告)日：2003-10-02
申请号：JP2002080874
申请日：2002-03-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SATO FUMIHIKO , MATSUBARA TAKUJI , HYODO YOSHIHIKO , HIRAI KATSUYA
IPC分类号： F02M25/08 , F02D29/02 , F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an evaporative fuel processing device for specifying the relationship between the output of an evaporative emission concentration sensor disposed on the intake side and the evaporative emission concentration at a non-atmospheric point. SOLUTION: This device is provided with a purge mechanism for purging evaporative fuel to an intake passage. The device is provided with an evaporative emission concentration sensor for detecting the evaporative emission concentration in gas flowing through the intake passage and an exhaust side sensor for generating output depending on the exhaust air-fuel ratio. According to the output of the exhaust side sensor, the fuel injection quantity is feedback controlled so that the exhaust air-fuel ratio reaches a stoichiometric air-fuel ratio. Under the execution of feedback control, the evaporative emission concentration is estimated depending on the loss proportion of the fuel injection quantity due to correction (step 106, 108). The non-atmospheric point is specified by making the estimated value of the evaporative emission concentration correspond to the output of the evaporative emission concentration sensor (step 112). The output of the evaporative emission concentration sensor is composed of the atmospheric point and the non-atmospheric point (step 116). COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种蒸发燃料处理装置，用于规定设置在进气侧的蒸发发射浓度传感器的输出与非大气压下的蒸发发射浓度之间的关系。解决方案：该装置设置有用于将蒸发燃料吹扫到进气通道的净化机构。该装置设置有用于检测通过进气通道的气体中的蒸发发射浓度的蒸发发射浓度传感器和用于根据排气空燃比产生输出的排气侧传感器。根据排气侧传感器的输出，对燃料喷射量进行反馈控制，使得排气空燃比达到理论空燃比。在反馈控制的执行下，根据由于校正引起的燃料喷射量的损失比例来估计蒸发发射浓度（步骤106,108）。通过使蒸发发射浓度的估计值对应于蒸发发射浓度传感器的输出来指定非大气点（步骤112）。蒸发发射浓度传感器的输出由大气点和非大气点组成（步骤116）。版权所有（C）2004，JPO

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