公开(公告)号：US09347353B2

公开(公告)日：2016-05-24

申请号：US14367551

申请日：2011-12-21

Applicant: Mamoru Yoshioka

Inventor： Mamoru Yoshioka

IPC: F01N3/20 ,  F01N11/00 ,  F01N3/28 ,  G01N27/14

CPC classification number: F01N3/2013 ,  F01N3/2006 ,  F01N3/2026 ,  F01N3/2853 ,  F01N3/2864 ,  F01N11/00 ,  F01N2550/22 ,  F01N2900/0602 ,  F01N2900/1404 ,  G01N27/14 ,  Y02T10/26 ,  Y02T10/47

Abstract: Abnormality of an electrically heated catalyst is detected in a more accurate manner. In an abnormality detection apparatus for an electrically heated catalyst which is provided with a heat generation element that is arranged in an exhaust passage of an internal combustion engine, and is electrically energized to generate heat, and an insulation part that provides electrical insulation so that electricity does not flow through the exhaust passage when the heat generation element is electrically energized, provision is made for a determination unit which makes a determination that abnormality has occurred in the electrically heating catalyst, in cases where the heat generation element is electrically energized from before starting of the internal combustion engine, and in cases where a value of an insulation resistance of the insulation part after a predetermined period of time has elapsed from the starting of the internal combustion engine is equal to or less than a threshold value.

Abstract translation: 以更准确的方式检测电加热催化剂的异常。 在电加热催化剂的异常检测装置中，该异常检测装置具有设置在内燃机的排气通路中并被通电以产生热量的发热元件，以及提供电绝缘的绝缘部件，使得电 当发热元件通电时，在发热元件从起动前被赋能的情况下，对确定电加热催化剂中发生异常的判定单元进行设定，不会流过排气通路 并且在从内燃机的起动经过了预定时间段之后的绝缘部件的绝缘电阻值的值等于或小于阈值的情况下。

公开(公告)号：US09222387B2

公开(公告)日：2015-12-29

申请号：US14373216

申请日：2012-01-18

Applicant: Noriaki Kumagai ,  Mamoru Yoshioka

Inventor： Noriaki Kumagai ,  Mamoru Yoshioka

IPC: F01N3/00 ,  F01N3/20 ,  B60K6/445 ,  B60W10/06 ,  F01N9/00

CPC classification number: F01N3/2013 ,  B60K6/445 ,  B60W10/06 ,  B60W30/194 ,  B60W2510/0604 ,  B60W2510/0619 ,  B60W2510/068 ,  B60W2520/10 ,  B60W2530/12 ,  B60W2710/0605 ,  B60W2710/0622 ,  B60W2710/0694 ,  B60Y2300/474 ,  F01N3/2026 ,  F01N9/00 ,  F01N2590/11 ,  F01N2900/08 ,  F02D41/0002 ,  F02D41/0255 ,  F02D41/064 ,  F02D41/1446 ,  F02D41/1454 ,  F02D2200/0802 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/47 ,  Y02T10/54 ,  Y02T10/6239

Abstract: In a control apparatus for an internal combustion engine provided with an electrically heated catalyst which heats a catalyst having an ability to purify an exhaust gas by heat from a heat generation element which generates heat by the supply of electric power, provision is made for a decision unit that decides a restraint amount for energy inputted to the electrically heated catalyst through the exhaust gas so that a heat generation element internal temperature difference, which is a difference in temperature between predetermined portions in the heat generation element of the electrically heated catalyst at the time of cold starting of the internal combustion engine, falls within a predetermined temperature range; and a control unit that controls an operating state of the internal combustion engine according to the restraint amount for the input energy decided by the decision unit. With this construction, the occurrence of cracks inside the heat generation element of the electrically heated catalyst is suppressed.

Abstract translation: 在具有电加热催化剂的内燃机的控制装置中，加热具有通过供电产生热的发热元件利用热量排出废气的催化剂的催化剂，作出决定 决定通过废气输入到电加热催化剂的能量的约束量的单位，使得发热元件的内部温度差，其是当时的电加热催化剂的发热元件中的预定部分之间的温度差 内燃机的冷启动落在预定的温度范围内; 以及控制单元，其根据由判定单元决定的输入能量的约束量来控制内燃机的运转状态。 通过这种结构，抑制了电加热催化剂的发热元件内的裂纹的发生。

公开(公告)号：US09200555B2

公开(公告)日：2015-12-01

申请号：US14355089

申请日：2011-11-02

Applicant: Mamoru Yoshioka

Inventor： Mamoru Yoshioka

IPC: F01N3/027 ,  F01N3/20 ,  F01N3/035 ,  F01N13/14 ,  F01N9/00 ,  F01N3/023 ,  F01N3/32 ,  F01N3/28

CPC classification number: F01N3/2013 ,  F01N3/0238 ,  F01N3/0275 ,  F01N3/035 ,  F01N3/2026 ,  F01N3/2867 ,  F01N3/32 ,  F01N9/00 ,  F01N9/007 ,  F01N13/14 ,  F01N2240/16 ,  F01N2390/02 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1631 ,  Y02T10/26 ,  Y02T10/47

Abstract: A purpose of the present invention is to prevent a PM-caused short circuit between a heating element and a case in an electrically heated catalyst. The electrically heated catalyst is provided in an exhaust gas passage of an internal combustion engine the air-fuel ratio of which is controlled at a ratio near a theoretical air-fuel ratio at an operation time. The electrically heated catalyst includes a heating element that generates heat through electric conduction, a case that stores the heating element therein, and an insulating member sandwiched between the heating element and the case. According to the present invention, the heating element is electrically conducted after the operation of the internal combustion engine is stopped.

Abstract translation: 本发明的目的是防止加热元件与电加热催化剂中的壳体之间的PM引起的短路。 电加热催化剂设置在内燃机的排气通道中，其空燃比控制在理论空燃比在操作时间附近。 电加热催化剂包括通过导电产生热量的加热元件，将加热元件存储在其中的壳体和夹在加热元件和壳体之间的绝缘构件。 根据本发明，在停止内燃机的运转之后，加热元件进行导电。

公开(公告)号：US09181833B2

公开(公告)日：2015-11-10

申请号：US14345502

申请日：2011-10-18

Applicant: Mamoru Yoshioka

Inventor： Mamoru Yoshioka

IPC: B01D50/00 ,  F01N3/20 ,  F01N13/14 ,  F01N3/28

CPC classification number: F01N3/2013 ,  F01N3/2026 ,  F01N3/2864 ,  F01N3/2871 ,  F01N3/2892 ,  F01N13/14 ,  F01N13/148 ,  Y02T10/26

Abstract: Electricity is suppressed from flowing to a case of an electrically heated catalyst. In the electrically heated catalyst which is provided with a heat generation element adapted to be electrically energized to generate heat, the case in which the heat generation element is received, an inner pipe arranged between the heat generation element and the case for insulating electricity, an inner mat arranged between the heat generation element and the inner pipe, and an outer mat arranged between the inner pipe and the case, the inner pipe includes a tubular portion that is arranged in the surrounding of the heat generation element and is formed in parallel to a central axis of the heat generation element, and a downstream side inclination portion that is arranged at the downstream side of the tubular portion, with an inside diameter thereof becoming smaller in a direction toward a downstream side. A downstream side bent portion, being a boundary between the tubular portion and the downstream side inclination portion, is formed in the vicinity of a downstream side end portion of the outer mat.

Abstract translation: 抑制电流流向电加热催化剂的情况。 在电加热催化剂中，其具有适于被通电以产生热量的发热元件，其中容纳发热元件的壳体，布置在发热元件和用于绝缘电力的壳体之间的内管， 配置在发热元件和内管之间的内垫，以及设置在内管与壳体之间的外垫，内管包括管状部，该管状部布置在发热体的周围，并与 发热元件的中心轴线和设置在管状部分的下游侧的下游侧倾斜部分，其内径在朝向下游侧的方向上变小。 作为管状部和下游侧倾斜部之间的边界的下游侧弯曲部形成在外垫的下游侧端部附近。

公开(公告)号：US09039981B2

公开(公告)日：2015-05-26

申请号：US13499802

申请日：2011-03-10

Applicant: Mamoru Yoshioka

Inventor： Mamoru Yoshioka

IPC: F01N3/10 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28

CPC classification number: B01D53/94 ,  F01N3/2013 ,  F01N3/2026 ,  F01N3/28 ,  F01N3/2853 ,  F01N3/2871 ,  F01N2240/20 ,  Y02T10/26

Abstract: A laminated body composed of a holding member and an inner cylinder is arranged between a heat generation element, which is electrically energized to generate heat, and a case which covers the heat generation element, and the inner cylinder has an upstream side end portion extended to a more upstream side than an upstream side end face of said heat generation element and an upstream side end face of said holding member to form an extension portion, which is formed with a protruding portion protruding to an inner side in a diametrical direction. A flow of an exhaust gas, which flows backwards after colliding with the heat generation element, will be obstructed by said protruding portion. As a result, the backflow exhaust gas stops flowing into a gap between the case and the inner cylinder.

Abstract translation: 由保持构件和内筒构成的层叠体配置在通电而产生热的发热体和覆盖发热体的壳体之间，内筒的上游侧端部延伸至 比所述发热元件的上游侧端面和所述保持构件的上游侧端面更上游侧形成延伸部，该延伸部形成有沿直径方向向内侧突出的突出部。 与发热元件碰撞后向后流动的废气流将被所述突出部分阻挡。 结果，回流废气停止流入壳体和内筒之间的间隙。

公开(公告)号：US08997470B2

公开(公告)日：2015-04-07

申请号：US13635065

申请日：2010-03-17

Applicant: Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

Inventor： Mamoru Yoshioka ,  Noriaki Kumagai ,  Naoya Takagi

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

CPC classification number: F01N3/2046 ,  F01N3/055 ,  F01N3/2013 ,  F01N3/2026 ,  F01N3/2853 ,  F01N2900/1602 ,  Y02T10/26

Abstract: 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.

Abstract translation: 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

Applicant: Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

Inventor： Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

IPC: G01M15/10

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US08763379B2

公开(公告)日：2014-07-01

申请号：US13381771

申请日：2011-03-09

Applicant: Mamoru Yoshioka

Inventor： Mamoru Yoshioka

IPC: F01N3/10

CPC classification number: F01N3/2013 ,  B01D53/944 ,  F01N3/2026 ,  F01N3/2853 ,  F01N3/2871 ,  F01N2470/24 ,  F01N2510/06 ,  F01N2510/10 ,  F01N2530/04 ,  Y02T10/26

Abstract: The present invention is intended to suppress a short circuit between a heat generation element and a case in an electrically heated catalyst. An electrically heated catalyst (1) according to the present invention is provided with a heat generation element (3), a case (4), an insulating support member (5) arranged between said heat generation element (3) and said case (4), an inner pipe (6) inserted into said insulating support member (5) with its ends protruding into an exhaust gas from end faces of said insulating support member (5), and a catalyst (10) having an oxidation function that covers at least outer peripheral surfaces of protrusion portions (6a, 6b) of said inner pipe (6) protruding into the exhaust gas from the end faces of said insulating support member (5), except for predetermined ranges which are in contact with the end faces of said insulating support member (5).

Abstract translation: 本发明旨在抑制发热元件与电加热催化剂中的壳体之间的短路。 根据本发明的电加热催化剂（1）设置有发热元件（3），壳体（4），布置在所述发热元件（3）和所述壳体（4）之间的绝缘支撑构件（5） ），插入所述绝缘支撑构件（5）中的内管（6），其端部从所述绝缘支撑构件（5）的端面突出到排气中，以及具有氧化功能的催化剂（10） 除了与所述绝缘支撑构件（5）的端面接触的预定范围之外，所述内管（6）的突出部（6a，6b）的至少外周面从所述绝缘支撑构件（5）的端面突出到排气中， 所述绝缘支撑构件（5）。

公开(公告)号：US08613274B2

公开(公告)日：2013-12-24

申请号：US13148134

申请日：2009-02-12

Applicant: Mamoru Yoshioka

Inventor： Mamoru Yoshioka

IPC: F02M25/07 ,  F02M25/00

CPC classification number: F02D21/08 ,  F02D13/02 ,  F02D15/04 ,  Y02T10/18

Abstract: A spark ignition type internal combustion engine of the present invention comprises a variable closing timing mechanism able to change a closing timing of an intake valve after intake bottom dead center and an EGR mechanism making a part of the exhaust gas flow again into a combustion chamber as EGR gas. The EGR mechanism is controlled so that the amount of EGR gas is reduced when the closing timing of the intake valve is at a retarded side, compared with when it is at an advanced side. Due to this, occurrence of variation among cylinders in the air-fuel ratio and intake resistance along with blowback of intake gas can be suppressed.

Abstract translation: 本发明的火花点火式内燃机包括：可变关闭正时机构，其能够改变进气下止点之后的进气门的关闭正时和使一部分废气再次流入燃烧室的EGR机构， EGR气体。 控制EGR机构，与进气侧相比，当进气门的关闭时刻处于延迟侧时，EGR气体的量减少。 由此，能够抑制空气燃料比的气缸与进气阻力的变化的发生以及进气的回吹。

公开(公告)号：US20130291630A1

公开(公告)日：2013-11-07

申请号：US13994570

申请日：2010-12-15

Applicant: Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

Inventor： Naoya Takagi ,  Mamoru Yoshioka ,  Takashi Watanabe

IPC: F01N11/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。