公开(公告)号：US5746052A

公开(公告)日：1998-05-05

申请号：US525892

申请日：1995-09-08

申请人： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Takehisa Yaegashi ,  Toshifumi Takaoka

发明人： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Takehisa Yaegashi ,  Toshifumi Takaoka

IPC分类号： B01D53/94 ,  F01N3/20 ,  F01N3/22 ,  F01N3/24 ,  F01N13/02 ,  F01N13/04 ,  F02D41/04

CPC分类号： B01D53/9454 ,  B01D53/9431 ,  B01D53/9477 ,  B01D53/9495 ,  F01N13/009 ,  F01N13/011 ,  F01N3/20 ,  F01N3/206 ,  F01N2240/25 ,  F01N2570/14 ,  F01N2610/02 ,  Y02T10/22

摘要： In the present invention, the exhaust gas from the engine is divided into a first and a second branch exhaust passages after it passes through a three-way reducing and oxidizing catalyst, and the two branch exhaust passages merge into an exhaust gas outlet passage. In the first branch exhaust passage, an oxidizing catalyst is disposed, and in the exhaust gas outlet passage, a denitrating and oxidizing catalyst is disposed. NO.sub.x in the exhaust gas from the engine is all converted to N.sub.2 and NH.sub.3 by the three-way reducing and oxidizing catalyst and a part of the NH.sub.3 generated by the three-way catalyst flows into the first branch exhaust passage and is converted to NO.sub.x again by the oxidizing catalyst. The amount of NO.sub.x produced by the oxidizing catalyst and the amount of NO.sub.x flowing through the second branch exhaust passage is determined by the flow distribution ratio of the first and the second branch exhaust passages. In this invention, the flow ratio is determined in such a manner that the amount of the NO.sub.x produced by the oxidizing catalyst and the amount of the NH.sub.3 passing through the second branch exhaust passage are stoichiometric to produce N.sub.2 and H.sub.2 O. Therefore, when these exhaust gases flow into the denitrating and oxidizing catalyst after they mix with each other in the exhaust gas outlet passage, all the NO.sub.x and the NH.sub.3 are converted to N.sub.2 and H.sub.2 O by the denitrating and oxidizing catalyst without producing any surplus NO.sub.x or NH.sub.3.

摘要翻译： 在本发明中，来自发动机的废气在通过三通还原氧化催化剂后被分成第一和第二分支排气通道，两个分支排气通道合流到废气出口通道中。 在第一分支排气通道中设置氧化催化剂，并且在排气出口通道中设置脱硝和氧化催化剂。 来自发动机的废气中的NOx通过三元还原氧化催化剂全部转化为N 2和NH 3，并且由三元催化剂产生的一部分NH 3流入第一分支排气通道并再次转化为NOx 通过氧化催化剂。 由氧化催化剂产生的NOx的量和流过第二分支排气通道的NOx的量由第一和第二分支排气通道的流量分配比确定。 在本发明中，流量比以如下方式确定：氧化催化剂产生的NOx的量和通过第二分支排气通道的NH 3的量是化学计量的，以产生N 2和H 2 O. 因此，当这些废气在废气出口通道中彼此混合后流入脱硝和氧化催化剂时，所有的NOx和NH 3都被脱硝和氧化催化剂转化为N 2和H 2 O，而不产生任何剩余的NOx或 NH3。

公开(公告)号：US4748950A

公开(公告)日：1988-06-07

申请号：US16193

申请日：1987-02-18

申请人： Takeshi Okumura ,  Takehisa Yaegashi ,  Yoshihiro Iwashita

发明人： Takeshi Okumura ,  Takehisa Yaegashi ,  Yoshihiro Iwashita

IPC分类号： F02B31/00 ,  F02B31/02 ,  F02B31/08

CPC分类号： F02B31/085 ,  F02B2031/006 ,  Y02T10/146

摘要： A cylinder head for an engine is formed with a first straight intake passage which leads to a first intake port, and with a second helical intake passage which leads to a second intake port and is formed with a helical end vortex portion. A common intake passage leads to the upstream ends of the first and second intake passages. A dividing ridge extends from one side of the inner surface of the cylinder head defining the intake passages towards but not reaching an opposite side of that surface, with a gap being left beween the ridge summit portion and that opposite side. The ridge thus divides the second intake passage into a one side portion remote from the first intake passage and terminating in the helical end vortex portion, and another side portion towards that first intake passage which is a straight bypass passage and is communicated at its downstream end to that helical end vortex portion. The upstream end of the ridge is positioned substantially upstream of the point at which the common intake passage becomes bifurcated into the first and second intake passages. A control valve is fitted in the common intake passage between its wall and this upstream ridge end, so as to control the flow resistance of the first straight intake passage and the straight bypass passage. Optionally, the portion of the control valve on the ridge side of the cylinder head inner surface is substantially upstream of the portion thereof on the opposite side thereof.

摘要翻译： 用于发动机的气缸盖形成有第一直进入通道，其通向第一进气口，并且具有通向第二进气口并形成有螺旋端涡流部分的第二螺旋进入通道。 常见的进气通道通向第一和第二进气通道的上游端。 分隔脊从限定进气通道的气缸盖的内表面的一侧延伸而不到达该表面的相对侧，在脊顶部和相对侧之间留有间隙。 脊部将第二进气通道分成远离第一进气通道的一侧部分，并且终止于螺旋端涡流部分，另一侧部分朝向作为直的旁通通道的第一进气通道，并在其下游端连通 到该螺旋端涡流部分。 脊的上游端大致位于公共进气通道分叉进入第一和第二进气通道的点的上游。 控制阀安装在其入口通道和上游侧的前端之间，以便控制第一直进入通道和直通旁路通道的流动阻力。 可选地，控制阀在气缸盖内表面的脊侧上的部分基本上在其相对侧的部分的上游。

公开(公告)号：US4459669A

公开(公告)日：1984-07-10

申请号：US276996

申请日：1981-06-24

申请人： Yoshiki Chujo ,  Takehisa Yaegashi ,  Shinichi Sugiyama

发明人： Yoshiki Chujo ,  Takehisa Yaegashi ,  Shinichi Sugiyama

IPC分类号： F02D41/34 ,  F02D41/14 ,  F02D41/26 ,  F02B3/04 ,  F02D35/00 ,  F02M51/00

CPC分类号： F02D41/26 ,  F02D41/1479

摘要： An output voltage from an O.sub.2 sensor is intermittently sampled and the sampled voltage is converted into a binary signal. The binary signal is applied to an electrical digital computer, and therein the following operations are carried out. First, the maximum value or the maximum and minimum values of the applied binary signal are detected, then a reference value is calculated using the maximum value or the maximum and minimum values from a predetermined algebraic function. Thereafter, the applied binary signal is compared with the calculated reference value to generate a binary signal indicative of the comparison result. Then, the air-fuel ratio of the engine is adjusted in response to this binary signal calculated by the digital computer.

摘要翻译： 来自O2传感器的输出电压被间歇地采样，采样电压被转换为二进制信号。 二进制信号被应用于电子数字计算机，其中执行以下操作。 首先，检测所施加的二进制信号的最大值或最大值和最小值，然后使用来自预定代数函数的最大值或最大值和最小值来计算参考值。 此后，将所应用的二进制信号与计算的参考值进行比较，以生成表示比较结果的二进制信号。 然后，根据由数字计算机计算出的二进制信号来调节发动机的空燃比。

公开(公告)号：US4140611A

公开(公告)日：1979-02-20

申请号：US855616

申请日：1977-11-29

申请人： Takehisa Yaegashi ,  Shinichi Sugiyama ,  Sadayoshi Wada

发明人： Takehisa Yaegashi ,  Shinichi Sugiyama ,  Sadayoshi Wada

IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N27/416 ,  G01N31/00 ,  G01N31/10 ,  G01N27/46

CPC分类号： G01N27/407

摘要： An oxygen sensor which comprising: a case having an inlet means and an outlet means through which gas passes. A sensor element is installed within the case, and an oxidation catalyzer is arranged upstream of said sensor element within said case. The inlet means or oxidation catalyzer is arranged so that a part of the gas which is introduced through the inlet means into the case flows without passing through the oxidation catalyzer while the other part of said gas passes through the oxidation catalyzer.

摘要翻译： 一种氧传感器，包括：壳体，其具有入口装置和气体通过的出口装置。 传感器元件安装在壳体内，并且氧化催化剂被布置在所述壳体内的所述传感器元件的上游。 入口装置或氧化催化剂被布置成使得通过入口装置引入到壳体中的气体的一部分流过而不通过氧化催化剂，而另一部分气体通过氧化催化剂。

公开(公告)号：US5271906A

公开(公告)日：1993-12-21

申请号：US966927

申请日：1992-10-27

申请人： Kiyoshi Yuuki ,  Hiroshi Hirayama ,  Takehisa Yaegashi

发明人： Kiyoshi Yuuki ,  Hiroshi Hirayama ,  Takehisa Yaegashi

IPC分类号： B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F01N13/02 ,  B01D53/34

CPC分类号： B01D53/9481 ,  F01N13/009 ,  F01N13/0097 ,  F01N3/0835 ,  F01N3/0871 ,  F01N3/2013 ,  F01N3/2026 ,  F01N9/00 ,  F01N2240/16 ,  F01N2250/12 ,  F01N3/20 ,  Y02T10/26 ,  Y02T10/47 ,  Y10S55/30

摘要： An exhaust emission control apparatus includes an absorbent provided in an upstream portion of an exhaust passage of an engine to absorb hydrocarbon in exhaust gas passed through the exhaust passage at a temperature lower than a predetermined first temperature, the hydrocarbon being desorbed from the absorbent at a temperature higher than the first temperature, a catalytic converter provided in a downstream portion of the exhaust passage to purify hydrocarbon in the exhaust gas when a catalyst of the catalytic converter is active, the catalyst of the catalytic converter being activated at a temperature higher than a predetermined second temperature, the second temperature being higher than the first temperature, and a heating part for heating the catalytic converter to a temperature higher than the second temperature when the engine is in a prescribed starting condition and the absorbent is at a temperature higher than the first temperature, so that the hydrocarbon desorbed from the absorbent in the exhaust passage is purified by the activated catalyst of the catalytic converter.

摘要翻译： 废气排放控制装置包括设置在发动机的排气通道的上游部分中的吸收剂，以在低于预定的第一温度的温度吸收通过排气通道的废气中的烃，烃在吸收剂中被解吸 温度高于第一温度的催化转化器，催化转化器设置在排气通道的下游部分，以在催化转化器的催化剂活性时净化废气中的烃，催化转化器的催化剂在高于 预定的第二温度，第二温度高于第一温度;以及加热部分，用于在发动机处于规定的起始条件时将催化转化器加热到高于第二温度的温度，并且吸收剂处于比 第一温度，使得烃从阿布解吸 排气通道中的吸附剂被催化转化器的活化催化剂净化。

公开(公告)号：US5232973A

公开(公告)日：1993-08-03

申请号：US879534

申请日：1992-05-04

申请人： Keiichi Sakashita ,  Keiji Yamada ,  Kazuhiko Shiratani ,  Takehisa Yaegashi

发明人： Keiichi Sakashita ,  Keiji Yamada ,  Kazuhiko Shiratani ,  Takehisa Yaegashi

IPC分类号： C09K3/10 ,  F16J15/10

CPC分类号： C09K3/1028 ,  F16J15/102 ,  C09K2200/0243 ,  C09K2200/0252 ,  C09K2200/026 ,  C09K2200/0282 ,  C09K2200/0295 ,  C09K2200/0607 ,  C09K2200/0612 ,  F02B2275/18

摘要： A high-temperature gasket suitable for use in automobile engine or the like is comprised of particular amounts of ceramic inorganic fiber, wollastonite, organic elastomeric substance and inorganic binder, and exhibits excellent sealability and thermal resistance even at a temperature above 950.degree. C. without using asbestos.

摘要翻译： 适用于汽车发动机等的高温垫片由特定量的陶瓷无机纤维，硅灰石，有机弹性体和无机粘合剂组成，即使在高于950℃的温度下也显示出优异的密封性和耐热性，没有 使用石棉。

公开(公告)号：US4083183A

公开(公告)日：1978-04-11

申请号：US723281

申请日：1976-09-14

申请人： Takehisa Yaegashi ,  Takayoshi Nakatomi

发明人： Takehisa Yaegashi ,  Takayoshi Nakatomi

IPC分类号： F01N3/22 ,  F02D33/00 ,  F02D37/00 ,  F02D41/02 ,  F02D41/18 ,  F02M51/02 ,  F02B75/10 ,  F02M25/06

CPC分类号： F01N3/222 ,  F01N3/22 ,  F02D41/182

摘要： An internal combustion engine provided with an EFI (electronic fuel injection) system, in which the ratio of the amount of air introduced into the engine intake system to the amount of fuel supplied to the combustion chamber is controlled to a predetermined constant ratio irrespective of engine operating conditions, is disclosed. A part of the introduced air is diverted from the intake pipe in accordance with the engine operating condition, and is introduced into the exhaust system or re-introduced into the intake system of the engine when the engine is operating under particular conditions. Thus, a rich air-fuel mixture, which is, for example, suitable for a particular engine operating condition, can be supplied to the engine combustion chamber.

公开(公告)号：US6047542A

公开(公告)日：2000-04-11

申请号：US68422

申请日：1998-06-29

申请人： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Naoto Suzuki ,  Takehisa Yaegashi ,  Kouichi Takeuchi

发明人： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Naoto Suzuki ,  Takehisa Yaegashi ,  Kouichi Takeuchi

IPC分类号： F02D43/00 ,  B01D53/86 ,  B01D53/94 ,  B01J23/40 ,  B01J23/70 ,  B01J29/04 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N13/02 ,  F01N13/04 ,  F02B1/04 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F01N3/00

CPC分类号： F01N3/2073 ,  B01D53/8696 ,  B01D53/9431 ,  B01D53/9495 ,  F01N13/009 ,  F01N13/011 ,  F01N13/107 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/20 ,  F01N3/2053 ,  F02D41/027 ,  F02D41/1443 ,  F02D41/1475 ,  F01N2240/25 ,  F01N2250/12 ,  F01N2610/02 ,  F02B1/04 ,  F02D41/0275 ,  Y02T10/22

摘要： An engine (1) has first and second cylinder groups (1a) and (1b). The first cylinder group (1a) is connected to a three way (TW) catalyst (8a). The second group (1b) and the TW catalyst (8a) are connected, via an interconnecting duct (13) to an NH.sub.3 adsorbing and oxidizing (NH.sub.3 -AO) catalyst (14a). The first group (1a) performs the rich operation, and the second group (1b) performs the lean operation. In the TW catalyst (8a), NO.sub.x exhausted from the first group (1a) is converted to NH.sub.3, and the NH.sub.3 reduces the NO.sub.x exhausted from the second group (1b) in the NH.sub.3 -AO catalyst (14a). A NO.sub.x occluding and reducing (NO.sub.x -OR) catalyst (11a) is arranged in the exhaust passage between the second group (1b) and the interconnecting duct (13), to thereby suppress the NO.sub.x amount flowing into the NH.sub.3 -AO catalyst (14a).

摘要翻译： PCT No.PCT / JP96 / 03332 Sec。 371日期1998年6月29日第 102（e）1998年6月29日PCT PCT 1996年11月13日PCT公布。 公开号WO97 / 19262 日期1997年5月29日发动机（1）具有第一和第二气缸组（1a）和（1b）。 第一气缸组（1a）连接到三通（TW）催化剂（8a）。 第二组（1b）和TW催化剂（8a）通过互连导管（13）连接到NH 3吸附和氧化（NH3-AO）催化剂（14a）。 第一组（1a）执行丰富操作，第二组（1b）执行精简操作。 在TW催化剂（8a）中，从第一组（1a）排出的NOx转化为NH 3，并且NH 3减少在NH3-AO催化剂（14a）中从第二组（1b）排出的NOx。 在第二组（1b）和互连管（13）之间的排气通道中设置有NOx吸留还原（NOx-OR）催化剂（11a），从而抑制流入NH 3 -A AO催化剂（14a）的NOx量 ）。

公开(公告)号：US5832889A

公开(公告)日：1998-11-10

申请号：US854514

申请日：1997-05-12

申请人： Takao Naruoka ,  Takehisa Yaegashi

发明人： Takao Naruoka ,  Takehisa Yaegashi

IPC分类号： F01L1/08 ,  F01L1/14 ,  F01L1/20 ,  F01L13/00 ,  F01L1/12

CPC分类号： F01L1/143 ,  F01L13/0042

摘要： A valve driving apparatus includes a cam, a force transfer member transferring force of the cam to a valve, and a shim interposed between the cam and the force transfer member and movable on the force transfer member. The shim has a first portion, a part of which first portion is always in contact with the force transfer member while the shim is being moved on the force transfer member in accordance with a motion of the cam.

摘要翻译： 阀驱动装置包括凸轮，将凸轮传递到阀的力传递部件，以及插入在凸轮和力传递部件之间并可在力传递部件上移动的垫片。 垫片具有第一部分，其一部分第一部分总是与力传递部件接触，同时垫片根据凸轮的运动在力传递部件上移动。

公开(公告)号：US5782087A

公开(公告)日：1998-07-21

申请号：US746056

申请日：1996-11-06

申请人： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Naoto Suzuki ,  Takehisa Yaegashi ,  Toshiaki Tanaka

发明人： Yukio Kinugasa ,  Kouhei Igarashi ,  Takaaki Itou ,  Naoto Suzuki ,  Takehisa Yaegashi ,  Toshiaki Tanaka

IPC分类号： F02D45/00 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N9/00 ,  F01N13/02 ,  F02B1/04 ,  F02D41/04

CPC分类号： F01N3/0842 ,  B01D53/9409 ,  B01D53/9436 ,  B01D53/9495 ,  F01N13/009 ,  F01N3/0871 ,  F01N3/20 ,  F01N9/00 ,  F01N2250/12 ,  F01N2370/04 ,  F02B1/04 ,  Y02T10/22 ,  Y02T10/47

摘要： An exhaust manifold of an engine is connected to a three way (TW) catalyst, and the TW catalyst is connected to an NH.sub.3 adsorbing and oxidizing (NH.sub.3 -AO) catalyst, such as the Cu-zeolite catalyst. The engine performs the lean and the rich operations alternately and repeatedly. When the engine performs the rich operation, the TW catalyst synthesizes NH.sub.3 from NO.sub.x in the inflowing exhaust gas, and the NH.sub.3 is then adsorbed in the NH.sub.3 -AO catalyst. Next, when the engine performs the lean operation, NO.sub.x passes through the TW catalyst, and the adsorbed NH.sub.3 is desorbed and reduces the inflowing NO.sub.x. When the rich operation is in process, or is to be started, the exhaust gas temperature flowing into the NH.sub.3 -AO catalyst is detected. If the temperature is equal to or higher than the upper threshold representing the rich endurance temperature, the lean or the stoichiometric operation is performed.

摘要翻译： 发动机的排气歧管连接到三通（TW）催化剂，TW催化剂连接到NH 3吸附和氧化（NH3-AO）催化剂如Cu-沸石催化剂上。 发动机交替重复执行精益和丰富的操作。 当发动机进行浓缩操作时，TW催化剂在流入的废气中从NOx合成NH 3，然后NH 3被吸附在NH3-AO催化剂中。 接下来，当发动机进行稀薄运转时，NOx通过TW催化剂，吸附的NH 3被解吸并减少流入的NOx。 当富运行正在进行或正在启动时，检测流入NH3-AO催化剂的废气温度。 如果温度等于或高于表示富耐久温度的上限阈值，则执行稀薄或化学计量操作。