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    Ferrite material
    1.
    发明授权
    Ferrite material 失效
    铁氧体材料

    公开(公告)号：US07524433B2

    公开(公告)日：2009-04-28

    申请号：US11133810

    申请日：2005-05-19

    申请人： Shin Takane ,  Takuya Aoki

    发明人： Shin Takane ,  Takuya Aoki

    IPC分类号： H01F1/34

    CPC分类号： C04B35/265 ,  C01G49/0018 ,  C01G49/0063 ,  C01G53/006 ,  C01P2004/02 ,  C01P2006/10 ,  C01P2006/42 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/727 ,  C04B2235/77 ,  C04B2235/784 ,  C04B2235/786 ,  H01F1/344

    摘要： The temperature properties of the initial permeability of a Ni—Cu—Zn based ferrite material are improved while the degradation of the magnetic properties of the ferrite material is being suppressed. The ferrite material is formed of a sintered body comprising, as main constituents, Fe2O3: 47.0 to 50.0 mol %, CuO: 0 to 7 mol %, NiO: 13 to 26 mol %, and ZnO substantially constituting the balance, wherein the sintered body comprises 40 ppm or less of P in terms of P2O5 and 50 to 1800 ppm of one or more additives of Al2O3, CaO and MgO in relation to the sum of the contents of the main constituents. In the Ni—Cu—Zn based ferrite material, the mean grain size can be set at 12 μm or less and the standard deviation of the grain size can be set at 4.5 μm or less.

    摘要翻译： Ni-Cu-Zn系铁氧体材料的初始磁导率的温度特性得到改善，同时抑制了铁氧体材料的磁特性的劣化。 所述铁氧体材料由Fe 2 O 3：47.0〜50.0摩尔％，CuO：0〜7摩尔％，NiO：13〜26摩尔％以及构成余量的ZnO组成的烧结体形成，其中，烧结体 相对于主要成分的含量之和，相对于P2O5为40ppm以下，P为40ppm以下，Al2O3，CaO，MgO的添加量为50〜1800ppm。 在Ni-Cu-Zn系铁氧体材料中，平均粒径可以设定为12μm以下，粒径的标准偏差可以设定为4.5μm以下。

    METHOD OF PRODUCING MNZN-BASE FERRITE
    2.
    发明申请
    METHOD OF PRODUCING MNZN-BASE FERRITE 有权
    生产MNZN-BASE FERRITE的方法

    公开(公告)号：US20080236706A1

    公开(公告)日：2008-10-02

    申请号：US12053082

    申请日：2008-03-21

    申请人： Shenglei CHE ,  Kentaro MORI ,  Masahiko WATANABE ,  Takuya AOKI ,  Tomofumi KURODA

    发明人： Shenglei CHE ,  Kentaro MORI ,  Masahiko WATANABE ,  Takuya AOKI ,  Tomofumi KURODA

    IPC分类号： C21D6/00

    CPC分类号： H01F1/344 ,  C01G49/0018 ,  C01G49/009 ,  C01G53/006 ,  C01P2002/52 ,  C01P2006/80 ,  C04B35/265 ,  C04B35/6262 ,  C04B35/62695 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/5427 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6584

    摘要： Firing is carried out such that for operation of a partial pressure of oxygen and temperature at the high-temperature holding operation phase and cooling operation phase, the following equilibrium relation equation (1) indicative of an equilibrium relation of a partial pressure of oxygen (PO2 in %) to a temperature (T in absolute temperature K) is used to set the values of a and b at given values of a=a* and b=b*, respectively, Log(PO2)=a−b/T   Eq. (1) and Log(PO2)=a*−b*/T that is a basic relation equation for operation of the partial pressure oxygen (PO2) and temperature (T) is fixed as an basic equation for operation; the partial pressure of oxygen (PO2) at the high-temperature holding operation phase is operated at a partial pressure of oxygen p2 that is higher than the value of an equilibrium partial pressure of oxygen PO2=p1 determined from an equilibrium relation to temperature based on the basic equation for operation Log(PO2)=a*−b*/T: p2>p1; and the partial pressure of oxygen (PO2) at the cooling operation phase is operated at an equilibrium partial pressure of oxygen determined from an equilibrium relation to temperature based on the basic equation Log(PO2)=a*−b*/T. It is thus possible to obtain a MnZn-base ferrite having well-balanced properties: high saturation flux density and low core loss.

    摘要翻译： 进行烧结，使得在高温保持运转阶段和冷却运转阶段运行氧气和温度的运转，指示氧分压（PO）的平衡关系的以下平衡关系式（1） 使用％）至温度（绝对温度T下的T）用于将a和b的值分别设定为a = a *和b = b *的给定值< -line-formula description =“In-line Formulas”end =“lead”？> Log（PO＆lt; 2＆gt;）= ab / T Eq。 （1）<？in-line-formula description =“In-line Formulas”end =“tail”？>和Log（PO 2 ）= a * -b * / T， 用于操作分压氧（PO 2 2）和温度（T）的关系式被定为操作的基本方程; 在高温保持操作阶段的氧气分压（PO 2 H 2）在氧气p 2的分压下操作，其比氧的平衡分压值PO p 1，从与温度的平衡关系确定的> 2 = p 1。 并且在冷却操作阶段的氧气分压（PO 2 H 2）基于从基本方程Log（PO 2）的平衡关系确定的氧平衡分压 ）= a * -b * / T。 因此，可以获得具有良好平衡特性的MnZn基铁氧体：高饱和磁通密度和低磁芯损耗。

    Catalyst activating system in multi-cylinder internal combustion engine
    10.
    发明授权
    Catalyst activating system in multi-cylinder internal combustion engine 失效
    多气缸内燃机催化剂活化系统

    公开(公告)号：US5531203A

    公开(公告)日：1996-07-02

    申请号：US377736

    申请日：1995-01-25

    申请人： Takashi Komatsuda ,  Hiroaki Kato ,  Yuichi Shimasaki ,  Akihisa Saito ,  Toshikazu Oketani ,  Takuya Aoki

    发明人： Takashi Komatsuda ,  Hiroaki Kato ,  Yuichi Shimasaki ,  Akihisa Saito ,  Toshikazu Oketani ,  Takuya Aoki

    IPC分类号： F01L13/00 ,  F01L1/26 ,  F01N3/18 ,  F01N3/20 ,  F01N3/30 ,  F02D13/02 ,  F02D17/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/06 ,  F02D41/36 ,  F02D45/00 ,  F02D7/00

    CPC分类号： F02D41/025 ,  F01L1/267 ,  F01N3/2006 ,  F02D41/0087 ,  F01N2430/02 ,  F01N3/30 ,  Y02T10/26

    摘要： In a multi-cylinder internal combustion engine including a plurality of fuel injection valves corresponding to a plurality of cylinders, respectively, and a catalytic converter provided in an exhaust system common to the cylinders, the concentration of oxygen in the exhaust gas from the engine is precisely controlled in accordance with the operational condition of the engine in a low-temperature state of the engine for the prompt activation of the catalyst. When the engine is at a low temperature, the operation of the fuel injection valves is controlled so as to stop the supplying of a fuel into the particular cylinders and, the operation of a valve operating characteristic changing means is controlled to adjust the amounts of air drawn and discharged on the basis of conditions detected by operational condition detecting means and at such low temperature to thereby control the oxygen supplied to the catalyst in the catalytic converter whereby the activity of the catalyst can be controlled.

    摘要翻译： 在包括分别对应于多个气缸的多个燃料喷射阀的多气缸内燃机和设置在与气缸共用的排气系统中的催化转化器中，来自发动机的废气中的氧浓度为 在发动机的低温状态下，根据发动机的运转状况进行精确控制，以迅速激活催化剂。 当发动机处于低温时，控制燃料喷射阀的操作，以便停止向特定气缸中供应燃料，并且控制阀操作特性改变装置的操作以调节空气量 基于由操作条件检测装置检测的条件并在这样低的温度下拉出和排出，从而控制供给催化转化器中的催化剂的氧气，从而可以控制催化剂的活性。