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    • 2. 发明授权
    • Combustion gas purifier and internal combustion engine
    • 燃烧气体净化器和内燃机
    • US06832475B2
    • 2004-12-21
    • US10181527
    • 2002-11-14
    • Hiroyuki TanakaSeiji NishimotoHaruhiko KomatsuTsuneo EndohTsuyoshi BabaMasashi Shinohara
    • Hiroyuki TanakaSeiji NishimotoHaruhiko KomatsuTsuneo EndohTsuyoshi BabaMasashi Shinohara
    • F01N300
    • F01N3/2046B60K6/48F01K23/065F01K23/10F01N3/2006F01N3/281F01N3/2889F01N5/02F01N13/0093F01N2240/02Y02T10/16Y02T10/26Y02T10/6221
    • A small capacity pre-catalytic system (34) is disposed immediately downstream of an exhaust port (18), and a large capacity main catalytic system (35) is disposed immediately downstream of the pre-catalytic system (34). The pre-catalytic system (34) includes finely divided catalyst supports (48), and a third stage heat exchanger (H3) is disposed between these catalyst supports (48) so that a heat transfer tube (49) is bent in a zigzag manner. Fourth stage and fifth stage heat exchangers (H4, H5) are disposed on the upstream side, in the flow of the exhaust gas, of the pre-catalytic system (34), and first and second stage heat exchangers (H1, H2) are disposed on the downstream side, in the flow of the exhaust gas, of the main catalytic system (35). Water is made to flow through the first stage heat exchanger (H1) to the fifth heat exchanger (H5) in a direction opposite to that in which the exhaust gas flows, thereby exchanging heat with the exhaust gas. This allows the catalyst temperature to be actively controlled within the optimal temperature range without degrading the energy efficiency of the entire system.
    • 一个小容量预催化系统(34)设置在排气口(18)的紧下游,并且大容量主催化系统(35)紧靠在预催化系统(34)的下游。 预催化系统(34)包括细分的催化剂载体(48),并且在这些催化剂载体(48)之间设置第三级热交换器(H3),使得传热管(49)以锯齿形的方式弯曲 。 第四级和第五级热交换器(H4,H5)设置在预催化系统(34)的废气流的上游侧,第一和第二级热交换器(H1,H2)为 设置在主催化系统(35)的排气流的下游侧。 使水以与废气流动的方向相反的方式流过第一级热交换器(H1)至第五热交换器(H5),从而与废气进行热交换。 这允许催化剂温度在最佳温度范围内被主动地控制,而不降低整个系统的能量效率。
    • 3. 发明授权
    • Tubular thermoelectric module
    • 管状热电模块
    • US6096966A
    • 2000-08-01
    • US900419
    • 1997-07-25
    • Seiji NishimotoTaku KitayamaYoshikazu Fujisawa
    • Seiji NishimotoTaku KitayamaYoshikazu Fujisawa
    • H02N11/00H01L35/22H01L35/32H01L35/30
    • H01L35/22H01L35/32
    • A thermoelectric module having a high thermoelectric performance is shown and described. A flat thermoelectric module comprises a multi-layered body provided with a thermoelectric material layer having output take-out faces on two opposite sides, an electrode layer present on each output take-out faces, a metallic layer present on each electrode layer, and an electrical insulating outer layer covering the surface of the body. Adjacent layers are pressure-welded to be in close contact with each other. No solder is used in the construction of a module in accordance with the present invention, and it is therefore possible to improve the thermoelectric performance of the module by raising the operating temperature without being restricted by the melting point of solder.
    • 示出并描述了具有高热电性能的热电模块。 平板热电模块包括:多层体,其具有在两相对侧上具有输出取出面的热电材料层,存在于每个输出取出面的电极层,存在于每个电极层上的金属层,以及 覆盖身体表面的电绝缘外层。 相邻的层被压焊以彼此紧密接触。 在根据本发明的模块的构造中不使用焊料,因此可以通过提高工作温度而不受焊料的熔点的限制来提高模块的热电性能。
    • 4. 发明授权
    • Thermoelectric material
    • 热电材料
    • US5886292A
    • 1999-03-23
    • US895515
    • 1997-07-16
    • Seiji Nishimoto
    • Seiji Nishimoto
    • H01L35/14H01L35/16H01L35/22H01L35/26H01L35/28C04B35/00H01L35/20
    • H01L35/16H01L35/22
    • A thermoelectric material having excellent thermoelectric performance is shown and described. A thermoelectric material is formed having a plurality of conductive layers and a plurality of barrier layers that are alternatingly formed one upon the other such that one conductive layer is sandwiched by two barrier layers. The conductive layers are composed of a first semiconductor only, and the two barrier layers located on the outermost sides of the material each have a main layer made of a second semiconductor only and a boundary layer made of the first and second semiconductors. A plurality of barrier layers positioned in between the conductive layers each have a main layer and two boundary layers provided on opposite sides of the main layer. The thickness t.sub.1 of the conductive layer and the thickness t.sub.2 of the barrier layer have a relationship of 2t.sub.1 .ltoreq.t.sub.2 .ltoreq.50t.sub.1.
    • 示出并描述了具有优异的热电性能的热电材料。 形成具有多个导电层和多个阻挡层的热电材料,所述多个导电层和多个阻挡层彼此交替地形成,使得一个导电层被两个阻挡层夹在中间。 导电层仅由第一半导体构成,位于材料的最外侧的两个阻挡层各自具有仅由第二半导体构成的主层和由第一和第二半导体构成的边界层。 位于导电层之间的多个阻挡层各自具有设置在主层的相对侧上的主层和两个边界层。 导电层的厚度t1和阻挡层的厚度t2的关系为2t1≤t2≤50t1。
    • 6. 发明授权
    • Internal combustion engine
    • 内燃机
    • US07096664B2
    • 2006-08-29
    • US10470081
    • 2002-01-21
    • Seiji NishimotoTsuyoshi BabaKazuya Takahashi
    • Seiji NishimotoTsuyoshi BabaKazuya Takahashi
    • F01N3/10
    • F01N3/2046F01N3/2006F01N5/02F01N2240/02F02B2275/20Y02T10/16Y02T10/26
    • An internal combustion engine is provided in which the temperature of an exhaust gas gradually decreases from its upstream side to its downstream side, and the temperature of a working medium of a heat exchanger, which flows in the opposite direction to the exhaust gas, gradually increases from its upstream side to its downstream side. The temperature difference between the exhaust gas temperature and the working medium temperature is the smallest at the interface between a liquid phase region and a two-phase region of the working medium, and since a catalyst device is incorporated at the upstream side, relative to the flow of exhaust gas, of the vicinity of the position where the temperature difference is the smallest, it is therefore possible for the heat exchanger to utilize the heat generated by the catalyst device effectively. Since the catalyst device is disposed in the two-phase region of the working medium, in which the temperature is constant, and this constant temperature is a temperature at which the catalyst is active, the catalyst can exhibit a stable exhaust gas purification performance.
    • 提供一种内燃机,其中废气的温度从其上游侧到下游侧逐渐减小,并且沿与废气相反的方向流动的热交换器的工作介质的温度逐渐增加 从上游到下游。 排气温度和工作介质温度之间的温差在工作介质的液相区域和两相区域之间的界面处最小,并且由于催化剂装置相对于上游侧并入 在温度差最小的位置附近的废气流中,热交换器可以有效地利用催化剂装置产生的热量。 由于催化剂装置设置在温度恒定的工作介质的两相区域中,该恒定温度为催化剂活性的温度,所以催化剂可以表现出稳定的废气净化性能。
    • 7. 发明授权
    • Thermoelectric material
    • 热电材料
    • US5922988A
    • 1999-07-13
    • US895378
    • 1997-07-16
    • Seiji Nishimoto
    • Seiji Nishimoto
    • H01L35/14H01L35/16H01L35/22H01L35/26H01L35/28C04B35/00H01L35/20
    • H01L35/16H01L35/22
    • A thermoelectric material which exhibits an excellent thermoelectric performance even when it is used at elevated temperatures is shown and described. A thermoelectric material is provided having conductive layers made of a first semiconductor only, and barrier layers made of a second semiconductor only, that are alternatingly formed one upon the other. The interface of the barrier layer relative to the conductive layer is roughly formed to include a plurality of protuberances and a plurality of recesses, and the interface of the conductive layer relative to the barrier layer is roughly formed to fit the interface of the barrier layer. The ratio Ry/t of the maximum height Ry of the protuberance on the barrier layer to the thickness t of the barrier layer is set to be Ry/t.gtoreq.0.1. This makes it possible to enhance the strength of the heterojunction interface between the barrier layer and the conductive layer and to improve the heat resistance.
    • 显示并描述了即使在升高的温度下使用也表现出优异的热电性能的热电材料。 提供了具有仅由第一半导体制成的导电层和仅由第二半导体制成的阻挡层的热电材料,其彼此交替地形成。 阻挡层相对于导电层的界面大致形成为包括多个突起和多个凹部,并且导电层相对于阻挡层的界面大致形成为与阻挡层的界面贴合。 阻挡层上的突起的最大高度Ry与阻挡层的厚度t的比Ry / t被设定为Ry / t> / = 0.1。 这使得可以增强阻挡层和导电层之间的异质结界面的强度并提高耐热性。