公开(公告)号：US06405718B1

公开(公告)日：2002-06-18

申请号：US09613766

申请日：2000-07-11

申请人： Mamoru Yoshioka ,  Yoshihiko Hyodo ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Yoshihiko Hyodo ,  Naoya Takagi

IPC分类号： F02M3704

CPC分类号： F02M25/0809

摘要： A fuel vapor purge system connects a fuel tank with a canister and collects fuel vapor generated in the fuel tank by the canister. The purge system purges the collected fuel vapor to an intake passage of an internal combustion engine through a purge passage. A change of pressure due to fuel vapor generation in the fuel tank is measured while the purge passage is sealed. The pressure in the purge passage is differentiated from the pressure outside the purge passage and the purge passage is sealed. In this state, a change of the pressure in the purge passage is measured. After measuring the amount of generated fuel vapor, a test for leakage in the purge passage is performed based on the change of pressure due to the fuel vapor generation when measuring changes of pressure in the purge passage during a predetermined period.

摘要翻译： 燃料蒸汽吹扫系统将燃料箱与罐连接，并且通过罐收集在燃料箱中产生的燃料蒸气。 净化系统通过净化通道将收集的燃料蒸气吹扫到内燃机的进气通道。 在吹扫通道被密封的同时测量燃料箱中产生燃料蒸气的压力变化。 净化通道中的压力与净化通道外部的压力不同，并且吹扫通道被密封。 在这种状态下，测量吹扫通道中的压力变化。 在测量产生的燃料蒸汽的量之后，基于在测量预定时间段内的净化通道中的压力变化时由于燃料蒸气产生的压力变化而进行吹扫通道中的泄漏试验。

公开(公告)号：US08997470B2

公开(公告)日：2015-04-07

申请号：US13635065

申请日：2010-03-17

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： F01N3/00 ,  F01N3/20 ,  F01N3/28 ,  F01N3/05

CPC分类号： F01N3/2046 ,  F01N3/055 ,  F01N3/2013 ,  F01N3/2026 ,  F01N3/2853 ,  F01N2900/1602 ,  Y02T10/26

摘要： An exhaust gas purifying device for an internal combustion engine, including: an electrically heated catalyst which has a catalyst carrier supporting a catalyst and a carrier retention unit which is provided on an outer periphery of the catalyst carrier, which retains the catalyst carrier, and which has an electrical insulation property; and a cooling unit which cools the carrier retention unit. Therefore, it is possible to prevent the temperature of the carrier retention unit from becoming high, and it becomes possible to appropriately ensure the insulation property of the electrically heated catalyst. Hence, it becomes possible to expand a condition range in which the current can be applied to the electrically heated catalyst.

摘要翻译： 一种用于内燃机的废气净化装置，包括：具有负载催化剂的催化剂载体的电加热催化剂和保持催化剂载体的催化剂载体的外周上设置的载体保持单元， 具有电绝缘性能; 以及冷却载体保持单元的冷却单元。 因此，可以防止载体保持单元的温度变高，并且可以适当地确保电加热的催化剂的绝缘性。 因此，可以扩大电流可以施加到电加热的催化剂的条件范围。

公开(公告)号：US08776586B2

公开(公告)日：2014-07-15

申请号：US13994570

申请日：2010-12-15

申请人： Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

发明人： Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

IPC分类号： G01M15/10

CPC分类号： F01N11/00 ,  F01N3/10 ,  F01N3/2013 ,  F01N9/00 ,  F01N9/007 ,  F01N11/007 ,  F01N2550/02 ,  F01N2550/22 ,  F02D41/0255 ,  F02D41/1454 ,  F02D41/1474 ,  F02D41/221 ,  F02D2200/0804 ,  Y02T10/26 ,  Y02T10/47

摘要： Whether or not an electrically heated catalyst is normal is detected by accurately detecting whether the temperature of the electrically heated catalyst has gone up. To this end, provision is made for an air fuel ratio control device that adjusts an air fuel ratio of an exhaust gas flowing into the electrically heated catalyst to a rich air fuel ratio, at the time of starting of an internal combustion engine, a downstream side detection device that is arranged at the downstream side of the electrically heated catalyst and detects a concentration of oxygen in the exhaust gas, and a determination device that determines whether the electrically heated catalyst is electrically energized, based on the time at which the oxygen concentration detected by the downstream side detection device changes to a value indicating a rich air fuel ratio at the time when the air fuel ratio of the exhaust gas is adjusted by the air fuel ratio control device to the rich air fuel ratio, after starting of the internal combustion engine.

摘要翻译： 通过精确检测电加热催化剂的温度是否升高来检测电加热催化剂是否正常。 为此，提供了一种空燃比控制装置，其在内燃机起动时将流入电加热催化剂的废气的空燃比调节为浓空燃比，下游 所述侧面检测装置配置在所述电加热催化剂的下游侧，并检测排气中的氧浓度;以及判定装置，其根据所述氧浓度的时间决定所述电加热催化剂是否通电 由下游侧检测装置检测到的内部变化为表示当空燃比控制装置将排气的空燃比调节为浓空燃比时的浓空燃比的值，内部 内燃机。

公开(公告)号：US20130291630A1

公开(公告)日：2013-11-07

申请号：US13994570

申请日：2010-12-15

申请人： Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

发明人： Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

IPC分类号： F01N11/00

CPC分类号： F01N11/00 ,  F01N3/10 ,  F01N3/2013 ,  F01N9/00 ,  F01N9/007 ,  F01N11/007 ,  F01N2550/02 ,  F01N2550/22 ,  F02D41/0255 ,  F02D41/1454 ,  F02D41/1474 ,  F02D41/221 ,  F02D2200/0804 ,  Y02T10/26 ,  Y02T10/47

摘要： Whether or not an electrically heated catalyst is normal is detected by accurately detecting whether the temperature of the electrically heated catalyst has gone up. To this end, provision is made for an air fuel ratio control device that adjusts an air fuel ratio of an exhaust gas flowing into the electrically heated catalyst to a rich air fuel ratio, at the time of starting of an internal combustion engine, a downstream side detection device that is arranged at the downstream side of the electrically heated catalyst and detects a concentration of oxygen in the exhaust gas, and a determination device that determines whether the electrically heated catalyst is electrically energized, based on the time at which the oxygen concentration detected by the downstream side detection device changes to a value indicating a rich air fuel ratio at the time when the air fuel ratio of the exhaust gas is adjusted by the air fuel ratio control device to the rich air fuel ratio, after starting of the internal combustion engine.

摘要翻译： 通过精确检测电加热催化剂的温度是否升高来检测电加热催化剂是否正常。 为此，提供了一种空燃比控制装置，其在内燃机起动时将流入电加热催化剂的废气的空燃比调节为浓空燃比，下游 所述侧面检测装置配置在所述电加热催化剂的下游侧，并检测排气中的氧浓度;以及判定装置，其根据所述氧浓度的时间决定所述电加热催化剂是否通电 由下游侧检测装置检测到的内部变化为表示当空燃比控制装置将排气的空燃比调节为浓空燃比时的浓空燃比的值，内部 内燃机。

公开(公告)号：US20130025267A1

公开(公告)日：2013-01-31

申请号：US13638776

申请日：2010-04-06

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi ,  Tatsuo Iida ,  Yasuo Kinoshita

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi ,  Tatsuo Iida ,  Yasuo Kinoshita

IPC分类号： F01N3/20

CPC分类号： F01N3/2026 ,  F01N3/2853 ,  Y02T10/26

摘要： An electrically-heated catalytic converter comprises a catalyst support which produces heat when electric current is applied, a holding mat made of an electrical insulating material, the holding mat being provided so as to cover an outer circumference of the catalyst support, and a case which houses the catalyst support and holds the catalyst support via the holding mat. The catalytic converter treats gas flowing in the case by a catalyst supported on the catalyst support. The holding mat has a water-absorbing property. An insulation layer made of an electrical insulating material is provided between the case and the holding mat.

摘要翻译： 电加热催化转化器包括在施加电流时产生热的催化剂载体，由电绝缘材料制成的保持垫，所述保持垫设置成覆盖催化剂载体的外周;以及壳体， 容纳催化剂载体并通过保持垫保持催化剂载体。 催化转化器通过负载在催化剂载体上的催化剂处理气体流动。 保持垫具有吸水性。 由电绝缘材料制成的绝缘层设置在外壳和保持垫之间。

公开(公告)号：US09131535B2

公开(公告)日：2015-09-08

申请号：US13818518

申请日：2010-08-23

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： B01D50/00 ,  H05B1/00 ,  F01N3/20 ,  F01N13/14 ,  F01N13/16

CPC分类号： H05B1/00 ,  F01N3/2026 ,  F01N13/14 ,  F01N13/16 ,  Y02T10/26

摘要： An object of the present invention is to suppress the decrease in the insulation resistance between an electrode and a case resulting from condensed water in an electric heating catalyst (EHC). The EHC includes a heat generating element which generates heat by applying electricity and which heats a catalyst, a case which accommodates the heat generating element, and an insulating member which is provided between the heat generating element and the case, and which provides insulation from electricity. An electrode chamber, which is a space formed around an electrode connected to the heat generating element, is occluded by an occluding member, which has an airtightness higher than those of the heat generating element and the insulating member, in the case of the EHC.

摘要翻译： 本发明的目的在于抑制在电加热催化剂（EHC）中电极与由冷凝水引起的情况之间的绝缘电阻的降低。 EHC包括通过施加电力并且加热催化剂，容纳发热元件的壳体和设置在发热元件和壳体之间并且提供与电绝缘的绝缘构件而产生热量的发热元件 。 作为与发热元件连接的电极周围形成的空间的电极室，在EHC的情况下，被气密性高于发热元件和绝缘部件的阻塞部件封闭。

公开(公告)号：US08826643B2

公开(公告)日：2014-09-09

申请号：US13509723

申请日：2010-03-18

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： F01N3/00 ,  F01N11/00 ,  F01N3/20

CPC分类号： F01N3/2013 ,  F01N3/2026 ,  F01N11/00 ,  F01N2240/16 ,  F01N2550/22 ,  Y02T10/26 ,  Y02T10/47

摘要： The exhaust gas purifying device of an internal combustion engine includes: an electrically heated catalyst which is provided on an exhaust passage of the internal combustion engine, which purifies the exhaust gas drawn to the exhaust passage, and is warmed by electrification; and an electrification characteristic setting unit which set an electrification characteristic indicating a characteristic of an electrification resistance value in the electrically heated catalyst, in accordance with an electrification condition at a time of starting the electrification of the electrically heated catalyst. Thus, various determinations and controls relating to the electrically heated catalyst and using the electrification characteristic can be accurately performed.

摘要翻译： 内燃机的排气净化装置具备：电加热催化剂，其设置在内燃机的排气通路上，净化吸入排气通路的废气，通过通电进行加热; 以及电气特性设定单元，其根据电加热催化剂的通电时的通电条件，设定表示电加热催化剂中的带电电阻值的特性的带电特性。 因此，可以精确地执行与电加热的催化剂有关的各种测定和控制，并且使用电气特性。

公开(公告)号：US08667781B2

公开(公告)日：2014-03-11

申请号：US13321739

申请日：2010-03-19

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： F01N3/22

CPC分类号： F01N3/2026 ,  B60K6/445 ,  F01N3/2013 ,  F01N2410/03 ,  F01N2430/10 ,  F01N2590/11 ,  F02D13/0215 ,  F02D13/0261 ,  F02D29/02 ,  F02D41/0235 ,  F02D41/123 ,  F02D2200/0802 ,  Y02A50/2322 ,  Y02T10/26 ,  Y02T10/6239

摘要： A vehicle control device applied to a vehicle including an internal combustion engine and an electrically heated catalyst which is warmed by applying a current, and includes a catalyst carrier supporting a catalyst and a carrier retention unit that retains the catalyst carrier and has an electrical insulation property. The control unit performs a control of suppressing a supply of an unburned gas from the internal combustion engine to the electrically heated catalyst so that the carrier retention unit is maintained at a lower temperature than the catalyst, when a condition for performing a fuel cut of the internal combustion engine during a deceleration is satisfied. Therefore, it is possible to suppress a rapid cooling of the catalyst, and it becomes possible to maintain a temperature of the carrier retention unit at a lower temperature than a temperature of the catalyst.

摘要翻译： 一种应用于车辆的车辆控制装置，其包括通过施加电流而被加热的内燃机和电加热催化剂，并且包括支撑催化剂的催化剂载体和保持所述催化剂载体并具有电绝缘性的载体保持单元 。 控制单元执行抑制从内燃机向电加热催化剂的未燃烧气体的供给的控制，使得当执行燃料切断的条件时，载体保持单元保持在低于催化剂的温度 内燃机在减速期间得到满足。 因此，可以抑制催化剂的快速冷却，并且可以将载体保持单元的温度保持在比催化剂的温度低的温度。

公开(公告)号：US20130200060A1

公开(公告)日：2013-08-08

申请号：US13818518

申请日：2010-08-23

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： H05B1/00

CPC分类号： H05B1/00 ,  F01N3/2026 ,  F01N13/14 ,  F01N13/16 ,  Y02T10/26

摘要： An object of the present invention is to suppress the decrease in the insulation resistance between an electrode and a case resulting from condensed water in an electric heating catalyst (EHC). The EHC includes a heat generating element which generates heat by applying electricity and which heats a catalyst, a case which accommodates the heat generating element, and an insulating member which is provided between the heat generating element and the case, and which provides insulation from electricity. An electrode chamber, which is a space formed around an electrode connected to the heat generating element, is occluded by an occluding member, which has an airtightness higher than those of the heat generating element and the insulating member, in the case of the EHC.

摘要翻译： 本发明的目的在于抑制在电加热催化剂（EHC）中电极与由冷凝水引起的情况之间的绝缘电阻的降低。 EHC包括通过施加电力并且加热催化剂，容纳发热元件的壳体和设置在发热元件和壳体之间并且提供与电绝缘的绝缘构件而产生热量的发热元件 。 作为与发热元件连接的电极周围形成的空间的电极室，在EHC的情况下，被气密性高于发热元件和绝缘部件的阻塞部件封闭。

公开(公告)号：US20130164185A1

公开(公告)日：2013-06-27

申请号：US13821919

申请日：2010-09-10

申请人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

IPC分类号： F01N3/20

CPC分类号： F01N3/2026 ,  B01D53/9431 ,  B01D53/9454 ,  F01N3/2864 ,  F01N2240/16 ,  Y02T10/22 ,  Y02T10/26

摘要： The flow of electricity to the case (4) of an electrically heated catalyst (1) is inhibited. The heating element (2), the case (4), and the electrically insulating inner pipe (3) provided between the heating element (2) and the case (4) and inner mats 51 and 52 that are shorter in the direction of the flow of exhaust gases than inner pipe (3) that are provided in a compressed condition between heating element (2) and inner pipe (3), and outer mats 53 and 54 that are shorter in the direction of the flow of exhaust gases than inner pipe (3) that are provided in a compressed condition between inner pipe (3) and case (4) are provided and the load per unit area acting upon inner pipe (3) at the contact surface between inner pipe (3) and outer mats 53 and 54 is larger than the load born per unit area of acting upon the heating element (2) at the contact surface between the inner mats 51 and 52 and heating element (2).

摘要翻译： 对电加热催化剂（1）的情况（4）的电流被抑制。 设置在加热元件（2）和壳体（4）之间的加热元件（2），壳体（4）和电绝缘内管（3）以及内垫子51和52的方向 排气的流动比在内部管（3）之间设置加热元件（2）和内管（3）之间的压缩状态，外垫53和54在废气流动方向上比内部方向短 设置在内管（3）和外壳（4）之间的压缩状态下的管道（3），并且在内管（3）和外垫之间的接触表面上作用在内管（3）上的每单位面积的载荷 53和54大于在内垫51和52与加热元件（2）之间的接触表面处作用在加热元件（2）上的每单位面积的负载。