公开(公告)号：US4617794A

公开(公告)日：1986-10-21

申请号：US740427

申请日：1985-06-03

申请人： Yoshiyasu Fujitani ,  Hideaki Muraki ,  Koji Yokota ,  Hideo Sobukawa ,  Shinichi Matsunaga

发明人： Yoshiyasu Fujitani ,  Hideaki Muraki ,  Koji Yokota ,  Hideo Sobukawa ,  Shinichi Matsunaga

IPC分类号： F01N3/22 ,  F02B1/04 ,  F02D41/14 ,  F02D41/34 ,  F01N3/20

CPC分类号： F02D41/1446 ,  F02D41/1474 ,  F02B1/04

摘要： Exhaust gas purifying method and apparatus for internal combustion engines in which the temperature of an exhaust gas purifying catalyst is detected and, as desired, oxygen content of exhaust gas is further detected, and in which the actual air-fuel ratio is varied toward the higher air-fuel ratio side and the lower air-fuel ratio side with respect to the theoretical air-fuel ratio, in accordance with the frequency and amplitude preset dependent on the kind of the catalyst and set based on these measured values.

摘要翻译： 检测排气净化催化剂的温度，根据需要进一步检测排气的氧含量的内燃机的排气净化方法和装置，其中实际空燃比向较高 空燃比侧和下空燃比侧相对于理论空燃比，根据根据催化剂的种类而预先设定的频率和振幅，并根据这些测定值设定。

公开(公告)号：US5795992A

公开(公告)日：1998-08-18

申请号：US765365

申请日：1997-02-10

申请人： Toshio Tanahashi ,  Masakatsu Sanada ,  Hiroyuki Domyo ,  Hiroshi Hirayama ,  Kazuaki Sobue ,  Tsuneo Higashi ,  Koji Yokota ,  Hideo Sobukawa ,  Tadashi Suzuki ,  Shinichi Matsunaga

发明人： Toshio Tanahashi ,  Masakatsu Sanada ,  Hiroyuki Domyo ,  Hiroshi Hirayama ,  Kazuaki Sobue ,  Tsuneo Higashi ,  Koji Yokota ,  Hideo Sobukawa ,  Tadashi Suzuki ,  Shinichi Matsunaga

IPC分类号： F01N11/00 ,  F02D41/14 ,  G01M99/00 ,  G01M15/00

CPC分类号： F01N11/002 ,  F02D41/1446 ,  F02D41/1495 ,  F01N2550/02 ,  F01N2550/20 ,  Y02T10/47

摘要： An internal combustion engine in which a three-way catalyst (12) for purification of the exhaust gas is arranged in the exhaust passage, wherein the relationship between the magnitude of the stress causing deterioration of the three-way catalyst (12), for example the catalytic bed temperature, and the rate of deterioration of the performance of the catalyst is found. A durability test is performed by raising the catalytic bed temperature higher than that of the vehicle under market driving. The length of the durability test at this time is determined from the relationship between the catalytic bed temperature and the rate of deterioration of the performance of the catalyst so as to give the same degree of deterioration of the performance of the catalyst as with market driving. The length of the durability test required for giving the same degree of deterioration of the performance of the catalyst is much shorter than the market driving time.

摘要翻译： PCT No.PCT / JP96 / 01318 Sec。 371日期1997年2月10日 102（e）日期1997年2月10日PCT提交1996年5月17日PCT公布。 WO96 / 36863 PCT出版物 日期：1996年11月21日在排气通路内配置有用于净化废气的三元催化剂（12）的内燃机，其中，三元催化剂的导致劣化的应力的大小 12），例如催化床温度和催化剂性能劣化的速率。 在市场驾驶下，通过提高催化床温度高于车辆的耐久性试验。 此时的耐久性试验的长度根据催化床温度与催化剂性能劣化的关系来确定，从而与催化剂的性能相同程度的劣化与市场驾驶相同。 给出相同程度的催化剂性能劣化所需的耐久性试验的长度比市场行驶时间短得多。

公开(公告)号：US5722238A

公开(公告)日：1998-03-03

申请号：US734774

申请日：1996-10-22

申请人： Toshio Tanahashi ,  Masakatsu Sanada ,  Koji Yokota ,  Shinichi Matsunaga ,  Hideo Sobukawa ,  Ichiro Konomi ,  Tadashi Suzuki

发明人： Toshio Tanahashi ,  Masakatsu Sanada ,  Koji Yokota ,  Shinichi Matsunaga ,  Hideo Sobukawa ,  Ichiro Konomi ,  Tadashi Suzuki

IPC分类号： F02D45/00 ,  F01N3/20 ,  F01N11/00

CPC分类号： F01N11/002 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  Y02T10/47

摘要： A device for evaluating catalyst performance deterioration includes an air-fuel ratio sensor and a temperature sensor. The degree of catalyst performance deterioration per unit time is calculated based on the concentration of oxygen in the exhaust gas and the temperature of the catalyst. The deterioration of the catalyst is evaluated on the basis of the accumulated value of the degree of catalyst performance deterioration per unit time.

摘要翻译： 用于评价催化剂性能劣化的装置包括空燃比传感器和温度传感器。 基于废气中的氧浓度和催化剂的温度计算每单位时间的催化剂性能劣化程度。 基于每单位时间的催化剂性能劣化程度的累积值来评价催化剂的劣化。

公开(公告)号：US5441401A

公开(公告)日：1995-08-15

申请号：US943015

申请日：1992-09-10

申请人： Akira Yamaguro ,  Shigenori Haramura ,  Naoki Minamoto ,  Yujiro Oshima ,  Hideaki Muraki ,  Katsushi Abe ,  Koji Yokota ,  Kazuo Kawahara

发明人： Akira Yamaguro ,  Shigenori Haramura ,  Naoki Minamoto ,  Yujiro Oshima ,  Hideaki Muraki ,  Katsushi Abe ,  Koji Yokota ,  Kazuo Kawahara

IPC分类号： F01N3/08 ,  B01D53/94 ,  F01N3/20 ,  F01N3/26 ,  F01N3/28 ,  F23J15/02 ,  F23J7/00

CPC分类号： B01D53/9495 ,  B01D53/9431 ,  F01N3/206 ,  F01N3/26 ,  F01N3/2882 ,  F23J15/02 ,  F01N2250/04 ,  F01N2610/04 ,  F02G2243/00 ,  F02G2254/10 ,  F02G2254/11 ,  F02G2254/15 ,  Y02E20/363

摘要： An apparatus for decreasing nitrogen oxides in a combustion device of Stirling engine which performs continuous combustion includes a combustion chamber, means for supplying the combustion chamber with fuel and air, an exhaust passageway for discharging exhaust gas produced by combustion in the combustion chamber, a catalytic unit arranged in the exhaust passageway for purging toxic components contained in the exhaust gas discharged, and hydrogen supply means for supplying hydrogen gas to the exhaust gas which enters the catalytic unit. The hydrogen gas is supplied to the combustion exhaust gas which has entered the catalytic unit, and the combustion exhaust gas is then catalytically reduced in an environment of a comparatively low temperatures of less than 250.degree. C., whereby the nitrogen oxides in the exhaust gas are decreased.

摘要翻译： 用于减少执行连续燃烧的斯特林发动机的燃烧装置中的氮氧化物的装置包括燃烧室，用于向燃烧室供应燃料和空气的装置，用于排放燃烧室中燃烧产生的废气的排气通道，催化剂 布置在排气通道中的单元，用于吹扫排放废气中所含的有毒成分，以及用于向进入催化单元的排气供给氢气的氢气供应装置。 向已经进入催化单元的燃烧废气供给氢气，然后在小于250℃的较低温度的环境中对燃烧废气进行催化还原，由此废气中的氮氧化物 减少。

公开(公告)号：US5412946A

公开(公告)日：1995-05-09

申请号：US961230

申请日：1992-10-15

申请人： Yujiro Oshima ,  Hideaki Muraki ,  Koji Yokota ,  Kiyoshi Nakanishi

发明人： Yujiro Oshima ,  Hideaki Muraki ,  Koji Yokota ,  Kiyoshi Nakanishi

IPC分类号： B01D53/86 ,  B01D53/94 ,  C01B3/38 ,  C10L3/10 ,  C10L10/14 ,  F01N3/08 ,  F01N3/20 ,  F02B1/04 ,  F01N3/36

CPC分类号： B01F5/0646 ,  B01D53/8696 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9495 ,  B01F5/0451 ,  B01F5/0463 ,  B01F5/0654 ,  F01N3/206 ,  B01D2251/202 ,  B01D2251/208 ,  B01D2251/21 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/20784 ,  B01D2258/012 ,  F01N2240/30 ,  F01N2610/04 ,  F02B1/04 ,  Y02T10/22 ,  Y02T10/24

摘要： A lean NOx reduction catalyst capable of reducing NOx through reaction of H.sub.2 with NOx at low temperatures below 350.degree. C. is installed in a downstream portion of an exhaust pipe of an internal combustion engine in or near a muffler. Such an NOx reduction catalyst comprises, for example, Pt/zeolite catalyst. An H.sub.2 generator is installed so as to supply the H.sub.2 to an inlet side of the NOx reduction catalyst. The H.sub.2 generator may include a reforming catalyst for reforming methanol, LPG, or natural gas to generate H.sub.2. The generated H.sub.2 flows to the NOx reduction catalyst where it reacts with NOx to purify the exhaust gas.

摘要翻译： 能够通过在低于350℃的低温下将H 2与NO x反应来还原NO x的贫NOx还原催化剂被安装在消声器中或其附近的内燃机排气管的下游部分。 这种NOx还原催化剂包括例如Pt /沸石催化剂。 安装H2发生器以便将H 2供应到NOx还原催化剂的入口侧。 H2发生器可以包括用于重整甲醇，LPG或天然气以产生H 2的重整催化剂。 所产生的H 2流入NOx还原催化剂，在其中与NOx反应以净化废气。

公开(公告)号：US5272871A

公开(公告)日：1993-12-28

申请号：US887133

申请日：1992-05-22

申请人： Yujiro Oshima ,  Katsushi Abe ,  Kazuo Kawahara ,  Koji Yokota ,  Hideaki Muraki ,  Masayuki Fukui

发明人： Yujiro Oshima ,  Katsushi Abe ,  Kazuo Kawahara ,  Koji Yokota ,  Hideaki Muraki ,  Masayuki Fukui

IPC分类号： F01N3/20 ,  F01N13/02 ,  F02B1/04 ,  F02B3/06

CPC分类号： B01F5/0451 ,  B01F5/0463 ,  B01F5/0646 ,  B01F5/0654 ,  F01N13/009 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/2066 ,  F01N2330/08 ,  F01N2470/02 ,  F01N2470/24 ,  F01N2610/04 ,  F02B1/04 ,  F02B3/06 ,  Y02T10/22 ,  Y02T10/24

摘要： Hydrogen gas from a hydrogen generator which creates hydrogen gas by the electrolysis of water or water vapor is supplied at the entrance to a catalyzer provided in an exhaust line. The catalyzer performs a catalytic reaction between hydrogen gas and nitrogen oxides to achieve decomposition into nitrogen gas and water vapor in the exhaust from an internal combustion engine. The nitrogen oxides are directly reduced with said hydrogen gas in a low temperature atmosphere not higher than 350.degree. C. to achieve efficient reduction in the nitrogen oxides. The improved method and apparatus provide a catalytic system with which the nitrogen oxides in the exhaust from a lean burnt engine or a diesel engine can be effectively reduced irrespective of the concentration of oxygen gas in the exhaust without impairing the good fuel economy of those engines.

摘要翻译： 来自通过电解水或水蒸汽产生氢气的氢气发生器的氢气在设置在排气管线中的催化剂的入口处供应。 催化剂在氢气和氮氧化物之间进行催化反应，从内燃机的排气中分解为氮气和水蒸气。 氮氧化物在不高于350℃的低温气氛中用所述氢气直接还原，以实现氮氧化物的有效还原。 改进的方法和装置提供了一种催化系统，其中来自贫燃发动机或柴油发动机的排气中的氮氧化物可以有效地减少，而不管排气中的氧气浓度如何，而不损害这些发动机的良好的燃料经济性。

公开(公告)号：US5975758A

公开(公告)日：1999-11-02

申请号：US880690

申请日：1997-06-23

申请人： Koji Yokota ,  Yoshimi Kizaki ,  Yoshiyuki Sakamoto ,  Tomoyoshi Motohiro

发明人： Koji Yokota ,  Yoshimi Kizaki ,  Yoshiyuki Sakamoto ,  Tomoyoshi Motohiro

IPC分类号： G01N27/26 ,  G01K3/04 ,  G01K7/18 ,  G01N27/00 ,  G01N27/04 ,  G01K7/16 ,  H01C7/02 ,  H01C7/04

CPC分类号： G01K3/04 ,  G01K7/183

摘要： Disclosed herein is a method and sensor for easily detecting the thermal history (or the change in state by heat) of a specimen. The sensor is made up of a pair of electrodes 1, 1, a diffusion layer 2 of insulating material disposed between the electrodes, and an electrically conductive metal 3. The electrodes are electrically isolated from each other in the beginning. As the sensor experiences heat history, the electrically conductive metal diffuses into the diffusion layer 2, thereby changing the resistance of the diffusion layer. When in use, the sensor is placed in or near the atmosphere to which the specimen is exposed. In response to the change of the specimen by heat, the electrically conductive metal 3 diffuses into the diffusion layer 2 to such an extent that the electrical resistance across the electrodes extremely decreases after a certain period of time. Thus it is possible to detect the deterioration or life of the specimen by monitoring the change in electrical resistance of the sensor.

摘要翻译： 这里公开了一种用于容易地检测试样的热历史（或热的状态变化）的方法和传感器。 传感器由一对电极1,1，设置在电极之间的绝缘材料的扩散层2和导电金属3组成。电极在开始时彼此电隔离。 当传感器经历热历史时，导电金属扩散到扩散层2中，从而改变扩散层的电阻。 当使用时，传感器放置在样品露出的大气中或附近。 响应于通过热量的样品的变化，导电金属3扩散到扩散层2中，使得电极跨过电极在一定时间后极大地降低。 因此，可以通过监测传感器的电阻的变化来检测试样的劣化或寿命。

公开(公告)号：US5474745A

公开(公告)日：1995-12-12

申请号：US304228

申请日：1994-09-12

申请人： Masayuki Fukui ,  Koji Yokota ,  Yutaka Yokoi ,  Yujiro Oshima

发明人： Masayuki Fukui ,  Koji Yokota ,  Yutaka Yokoi ,  Yujiro Oshima

IPC分类号： F01N3/24 ,  B01D53/86 ,  B01D53/94 ,  B01J35/04 ,  F01N3/02 ,  F01N3/20 ,  F01N3/28 ,  F01N13/04 ,  F02B3/06 ,  F01N3/00 ,  B01D53/92

CPC分类号： F01N3/2046 ,  B01D53/9431 ,  B01J35/04 ,  F01N13/011 ,  F01N3/2889 ,  F01N2240/18 ,  F01N2250/12 ,  F01N2260/022 ,  F01N2570/04 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2610/04 ,  F01N3/02 ,  F01N3/206 ,  F02B3/06 ,  Y02T10/26

摘要： An apparatus for efficiently purifying NOx in the exhaust gas or soluble organic substance in the exhaust gas from a diesel engine. A plurality of purification units are arranged in a housing, each of which is composed of a catalytic layer for reducing NOx and a cooling core for cooling the exhaust gas admitted through the catalytic layer. The multi-staged purification units are so constructed to admit the exhaust gas to flow therethrough. The catalytic layer in the form of a porous carrier such as a honeycomb structure carries catalytic components. Upon purifying soluble organic substance in the exhaust gas from a diesel engine, the catalytic components carried on the catalytic layer serve to efficiently purify such substance, as well as inhibiting the reaction to form sulfate.

摘要翻译： 一种用于有效地净化来自柴油发动机的废气中的废气或可溶性有机物质中的NOx的装置。 多个净化单元设置在壳体中，每个净化单元由用于还原NOx的催化剂层和用于冷却通过催化层进入的废气的冷却芯组成。 多级净化单元被构造成允许废气流过其中。 诸如蜂窝结构的多孔载体形式的催化层承载催化组分。 在从柴油发动机排出的废气中净化可溶性有机物质时，载持在催化层上的催化成分用于有效地净化这种物质，并抑制反应形成硫酸盐。

公开(公告)号：US5270024A

公开(公告)日：1993-12-14

申请号：US575621

申请日：1990-08-31

申请人： Senshi Kasahara ,  Katsumi Kamiyama ,  Kazushige Igawa ,  Shinichi Matsumoto ,  Masayuki Fukui ,  Tadashi Suzuki ,  Shiroh Kondoh ,  Koji Yokota ,  Shinichi Takeshima ,  Kazunobu Ishibashi ,  Masao Nakano

发明人： Senshi Kasahara ,  Katsumi Kamiyama ,  Kazushige Igawa ,  Shinichi Matsumoto ,  Masayuki Fukui ,  Tadashi Suzuki ,  Shiroh Kondoh ,  Koji Yokota ,  Shinichi Takeshima ,  Kazunobu Ishibashi ,  Masao Nakano

IPC分类号： B01D53/94 ,  B01J29/072 ,  B01J8/06 ,  B01D53/36

CPC分类号： B01D53/945 ,  B01J29/072 ,  Y02T10/22

摘要： A catalyst for reducing nitrogen oxides from an exhaust gas containing the same in an oxygen rich atmosphere comprising (i) a zeolite having a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of at least 10, (ii) copper, and (iii) a rare earth ion, an alkaline earth metal and/or a valence variable metal.

公开(公告)号：US4447871A

公开(公告)日：1984-05-08

申请号：US230805

申请日：1981-02-02

申请人： Matsuaki Terada ,  Koji Yokota

发明人： Matsuaki Terada ,  Koji Yokota

IPC分类号： G06F13/12 ,  G06F13/42 ,  G06F15/16 ,  G06F9/19

CPC分类号： G06F13/128 ,  G06F13/4213

摘要： A data communication system which includes a data distributor, a communication station and a plurality of front-end-processors. These front-end-processors are connected with a computer through a common bus. The distributor distributes the data received by the station to one available front-end-processor, which preprocesses the received data, and transfers the pre-processed data to the computer through the bus. By operating the front-end-processors in parallel with respect to successively received packets of data, the processing speed of the system is increased.

摘要翻译： 一种包括数据分配器，通信站和多个前端处理器的数据通信系统。 这些前端处理器通过公共总线与计算机连接。 分配器将站接收的数据分配给一个可用的前端处理器，该前端处理器对接收的数据进行预处理，并通过总线将预处理的数据传送到计算机。 通过相对于连续接收的数据包并行操作前端处理器，系统的处理速度增加。