公开(公告)号：US07304509B2

公开(公告)日：2007-12-04

申请号：US11341595

申请日：2006-01-30

Applicant: Yutaka Fukui

Inventor： Yutaka Fukui

IPC: H03K19/10 ,  H03K19/20 ,  H03K19/02

CPC classification number: H03H11/52 ,  H03H11/48

Abstract: There is disclosed an impedance circuit which realizes negative impedance with ease, and a power supply device having negative output impedance. An impedance circuit 1 connected to an external circuit comprises: a current inverter circuit 11 having an input terminal connected to outside; a passive circuit 10 having an input terminal connected to an output terminal of the current inverter circuit 11; and a current inverter circuit 12 having an input terminal connected to an output terminal of the passive circuit 10 and an output terminal connected to outside. The current inverter circuits 11 and 12 work in cooperation with each other, to make magnitude of impedance of the impedance circuit 1 proportional to impedance of the passive circuit 10, and to invert the polarity of the impedance of the impedance circuit 1.

公开(公告)号：US20070103187A1

公开(公告)日：2007-05-10

申请号：US11341595

申请日：2006-01-30

Applicant: Yutaka Fukui

Inventor： Yutaka Fukui

IPC: H03K19/003

CPC classification number: H03H11/52 ,  H03H11/48

Abstract: There is disclosed an impedance circuit which realizes negative impedance with ease, and a power supply device having negative output impedance. An impedance circuit 1 connected to an external circuit comprises: a current inverter circuit 11 having an input terminal connected to outside; a passive circuit 10 having an input terminal connected to an output terminal of the current inverter circuit 11; and a current inverter circuit 12 having an input terminal connected to an output terminal of the passive circuit 10 and an output terminal connected to outside. The current inverter circuits 11 and 12 work in cooperation with each other, to make magnitude of impedance of the impedance circuit 1 proportional to impedance of the passive circuit 10, and to invert the polarity of the impedance of the impedance circuit 1.

Abstract translation: 公开了容易实现负阻抗的阻抗电路和具有负输出阻抗的电源装置。 连接到外部电路的阻抗电路1包括：具有连接到外部的输入端的电流逆变器电路11; 无源电路10，其具有连接到当前逆变器电路11的输出端子的输入端子; 以及具有连接到无源电路10的输出端子的输入端子和与外部连接的输出端子的电流逆变器电路12。 当前的逆变器电路11和12相互协作工作，使阻抗电路1的阻抗大小与无源电路10的阻抗成比例，并且反转阻抗电路1的阻抗的极性。

公开(公告)号：US5569338A

公开(公告)日：1996-10-29

申请号：US461521

申请日：1995-06-05

Applicant: Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

Inventor： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

IPC: C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/14 ,  F01D5/28 ,  C21D9/00

CPC classification number: F01D5/147 ,  C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/141 ,  F01D5/28 ,  F01D5/288 ,  C21D2211/002 ,  F05D2300/133 ,  F05D2300/171

Abstract: The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

Abstract translation: 汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃， 在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。 该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。 至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

公开(公告)号：US5510080A

公开(公告)日：1996-04-23

申请号：US310410

申请日：1994-09-22

Applicant: Kazuya Nishi ,  Kishio Hidaka ,  Tetsuo Kashimura ,  Shigeyoshi Nakamura ,  Yutaka Fukui ,  Shinichi Nakahara

Inventor： Kazuya Nishi ,  Kishio Hidaka ,  Tetsuo Kashimura ,  Shigeyoshi Nakamura ,  Yutaka Fukui ,  Shinichi Nakahara

IPC: F23R3/42 ,  C22C1/10 ,  C22C19/05 ,  C22C32/00 ,  F01D5/28 ,  F02F7/00

CPC classification number: F01D5/28 ,  C22C32/0026 ,  F02F7/0085 ,  F05C2201/0466 ,  Y02T50/672

Abstract: There is provided an oxide dispersion-strengthened nickel alloy which has a hot working property, a structure stability at high temperature, improved creep characteristics at high temperature and improved heat resistant fatigue characteristics. The oxide dispersion-strengthened alloy is composed of an oxide containing one or more kinds of elements in an amount of 2 wt % or less selected from the group composed of titanium, zirconium and hafnium, chromium in an amount of 15-35 wt %, carbon in an amount of 0.01-0.4 wt % and Y.sub.2 O.sub.3 in an amount of 0.3-2.0 wt %, and the balance of substantially nickel, wherein Y.sub.2 O.sub.3 is dispersed as particles in the matrix of the nickel alloy containing one or more kinds of elements selected from the group composed of titanium, zirconium and hafnium, chromium and carbon. The elements of equipment such as the nozzle guide vane of a gas turbine, the liner and transition piece of a combustor, and the like are composed of the oxide dispersion-strengthened alloy of the present invention so that they can be used at high temperature.

Abstract translation: 提供了具有热加工性，高温结构稳定性，高温下蠕变特性提高，耐热疲劳特性提高的氧化物分散强化镍合金。 氧化物分散强化合金由含有选自钛，锆和铪组成的组中的2重量％以下的1种以上的元素的氧化物，15〜35重量％的铬， 0.01-0.4重量％的碳和0.3-2.0重量％的Y 2 O 3，余量基本上为镍，其中Y 2 O 3作为颗粒分散在含有选择的一种或多种元素的镍合金基质中 由钛，锆和铪组成的组，铬和碳组成。 燃气轮机的喷嘴引导叶片，燃烧器的衬套和过渡件等设备的元件由本发明的氧化物分散强化合金构成，从而可以在高温下使用。

公开(公告)号：US5383768A

公开(公告)日：1995-01-24

申请号：US893079

申请日：1992-06-03

Applicant: Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

Inventor： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

IPC: C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/14 ,  F01D5/28

CPC classification number: F01D5/147 ,  C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/141 ,  F01D5/28 ,  F01D5/288 ,  C21D2211/002 ,  F05D2300/133 ,  F05D2300/171

Abstract: The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

Abstract translation: 汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃， 在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。 该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。 至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

公开(公告)号：US5370497A

公开(公告)日：1994-12-06

申请号：US965699

申请日：1992-10-23

Applicant: Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

Inventor： Hiroyuki Doi ,  Ken Yasuda ,  Tetsuo Kashimura ,  Yutaka Fukui

IPC: C22C19/05 ,  C22C19/07 ,  C22C30/00 ,  F01D5/18 ,  F01D9/02 ,  F02C6/00 ,  F01D1/02

CPC classification number: C22C19/056 ,  C22C19/055 ,  C22C19/07 ,  C22C30/00 ,  F01D5/186 ,  F01D5/187 ,  F02C6/00 ,  F05D2260/201 ,  F05D2260/202 ,  Y10S60/909

Abstract: A Ni-base superalloy consisting essentially of, by weight: 0.05 to 0.20% C, 20 to 25% Co, 15 to 25% Cr, 1.0 to 3.0% Al, 1.0 to 3.0% Ti, 1.0 to 3.0% Nb, 5 to 10% W, and at least 42.5% Ni, the combination of the [Al+Ti] and tungsten contents being determined as shown in FIG. 5. This superalloy has a high thermal-fatigue resistance, a great high-temperature strength, particularly, a great creep rupture strength, and a good weldability. The superalloy is used to form gas turbine nozzles, which are employed in a gas turbine. Using such a gas turbine, a combined power generating system is built.

Abstract translation: 一种Ni基超合金，其主要由以重量计：C：0.05〜0.20％，Co：20〜25％，Cr：15〜25％，Al：1.0〜3.0％，Ti：1.0〜3.0％，Nb：1.0〜 10％W和至少42.5％的Ni，[Al + Ti]和钨含量的组合如图6所示确定。 该超合金具有高耐热疲劳性，高温强度，特别是大的蠕变断裂强度和良好的可焊性。 超级合金用于形成用于燃气轮机中的燃气轮机喷嘴。 使用这种燃气轮机，构建组合发电系统。

公开(公告)号：US5138187A

公开(公告)日：1992-08-11

申请号：US382313

申请日：1989-07-20

Applicant: Tetsuya Matsushima ,  Yutaka Fukui ,  Keiichi Murakami ,  Hajime Hayashi

Inventor： Tetsuya Matsushima ,  Yutaka Fukui ,  Keiichi Murakami ,  Hajime Hayashi

IPC: H04R3/00 ,  B06B1/02 ,  G01S7/524 ,  H03K17/0416

CPC classification number: H03K17/04163 ,  B06B1/0215

Abstract: An amplitude variable pulse generator is provided with two voltage supply sources. The first voltage source supplies a variable voltage which determines the amplitude of the output pulse. The second voltage source is a fixed or constant voltage source which provides a voltage lower in value than the first voltage. The second voltage source quickly pulls up a voltage between a drain and a source of a switching MOSFET, which generates the output pulse, by providing a charging voltage for an output capacitance of the MOSFET. By doing so, the output capacitance of the MOSFET is quickly reduced, and the trailing edge of the output pulse is not rounded even when the variable voltage is low. As a result, the waveform of the output pulse is not rounded for a very small amplitude pulse. Resolution of a supersonic wave device especially a supersonic diagnostic device is thereby improved.

Abstract translation: 振幅可变脉冲发生器具有两个电压源。 第一电压源提供可变电压，其确定输出脉冲的幅度。 第二电压源是固定或恒定电压源，其提供的值比第一电压低。 通过为MOSFET的输出电容提供充电电压，第二电压源通过产生输出脉冲的开关MOSFET的漏极和源极之间迅速上升电压。 通过这样做，MOSFET的输出电容快速降低，即使可变电压低，输出脉冲的后沿也不会倒圆。 结果，对于非常小的幅度脉冲，输出脉冲的波形不是四舍五入的。 因此，提高了超声波装置，特别是超音速诊断装置的分辨率。

公开(公告)号：US4621499A

公开(公告)日：1986-11-11

申请号：US754665

申请日：1985-07-11

Applicant: Takanobu Mori ,  Tetsuo Kashimura ,  Yutaka Fukui ,  Yoshimi Yanai ,  Nobuyuki Iizuka

Inventor： Takanobu Mori ,  Tetsuo Kashimura ,  Yutaka Fukui ,  Yoshimi Yanai ,  Nobuyuki Iizuka

IPC: C22C19/05 ,  F01D25/00 ,  F23R3/42 ,  F02C1/00

CPC classification number: C22C19/053 ,  F01D25/005

Abstract: A gas turbine combustor defines a combustion chamber for combustion of injected fuel and for introduction of the resultant hot combustion gas to nozzles of a gas turbine. The combustor has parts subjected to hot combustion gas during operation of the turbine, such as a cap connected to a fuel injection nozzle, a liner connected to the cap, and a transition piece connected to the liner. These parts subjected to the hot combustion gas are made from an alloy having a composition consisting essentially of 0.02 to 0.2 wt % of C, 15 to 30 wt % of Cr and 10 to 25 wt % of W.

Abstract translation: 燃气轮机燃烧器限定用于燃烧喷射燃料的燃烧室和用于将所产生的热燃烧气体引入燃气轮机的喷嘴。 燃烧器具有在涡轮机操作期间经受热燃烧气体的部件，例如连接到燃料喷射喷嘴的盖，连接到盖的衬套和连接到衬套的过渡件。 受热燃气体的这些部件由具有基本上由C组成0.02〜0.2重量％，Cr为15〜30重量％，W为10〜25重量％组成的合金构成。

公开(公告)号：US4462957A

公开(公告)日：1984-07-31

申请号：US281333

申请日：1981-07-08

Applicant: Yutaka Fukui ,  Yoshimitsu Tobita ,  Fumio Hataya ,  Mitsuhiro Watanabe ,  Noriaki Mase

Inventor： Yutaka Fukui ,  Yoshimitsu Tobita ,  Fumio Hataya ,  Mitsuhiro Watanabe ,  Noriaki Mase

IPC: C22C19/05 ,  C22C30/00 ,  C22C38/00 ,  G21C7/10

CPC classification number: G21C7/10 ,  G21Y2002/101 ,  G21Y2002/501 ,  G21Y2004/30 ,  Y02E30/39 ,  Y10S376/90

Abstract: A sliding mechanism comprising two members maintained in sliding contact with each other, wherein one of the members (which may be a pin) is formed of an alloy consisting essentially of, by weight, less than 0.3% carbon, 7-40% nickel, 15-28% chromium, 2-8% silicon, 3-12% manganese and the balance essentially iron, and the other member (which may be a roller) is formed of an alloy consisting essentially of, by weight, less than 0.5% carbon, 13-22% chromium, less than 2% silicon, less than 2% manganese, 3-10% molybdenum, 10% of at least one of titanium and aluminum and the balance essentially nickel, the two members having a difference in Vickers hardness of below 200 at their contact surfaces. The sliding mechanism has particualr utility as means for guiding a control rod of a nuclear reactor by means of pins and rollers.

Abstract translation: 一种包括保持彼此滑动接触的两个构件的滑动机构，其中一个构件（其可以是销）由基本上由重量比小于0.3％的碳，7-40％的镍组成的合金形成， 15-28％的铬，2-8％的硅，3-12％的锰，余量基本上是铁，而另一个（可以是一个辊子）由合金组成，该合金基本上由重量比小于0.5％ 碳，13-22％铬，小于2％的硅，小于2％的锰，3-10％的钼，10％的钛和铝中的至少一种，余量基本上为镍，两个成分在维氏 其接触表面硬度低于200。 滑动机构作为用于通过销和滚子引导核反应堆的控制杆的手段具有特别的实用性。

公开(公告)号：US4437913A

公开(公告)日：1984-03-20

申请号：US286514

申请日：1981-07-24

Applicant: Yutaka Fukui ,  Tetsuo Kashimura

Inventor： Yutaka Fukui ,  Tetsuo Kashimura

IPC: C22C19/07

CPC classification number: C22C19/07

Abstract: A cobalt base alloy having a superior high-temperature strength and high-temperature ductility, containing, by weight, 0.15 to 2% carbon, less than 2% silicon, less than 2% manganese, 5 to 15% nickel, 18 to 35% chromium, 3 to 15% tungsten, 0.003 to 0.1% boron, 0.01 to 1% niobium, 0.01 to 1% zirconium, less than 110% iron, less than 1% tantalum, less than 1% hafnium and remainder cobalt. At least one of 0.01 to 1 wt% titanium and 0.01 to 1 wt% (combined amount) rare earth elements is added to the alloy. The alloy is used as a casting and contains eutectic carbides and secondary carbides precipitated substantially uniformly in the grains. If the secondary carbides are formed by an age-treatment conducted at a higher temperature than that at which the alloy is actually used, the high-temperature strength and the high-temperature ductility of the alloy are remarkably improved. The cobalt base alloy is formed into gas turbine nozzles by a precision casting.

Abstract translation: 具有优异的高温强度和高温延展性的钴基合金，其含有0.15〜2％的碳，小于2％的硅，小于2％的锰，5〜15％的镍，18〜35％ 铬，3〜15％的钨，0.003〜0.1％的硼，0.01〜1％的铌，0.01〜1％的锆，少于110％的铁，1％以下的钽，1％以下的铪和余量的钴。 向合金中添加0.01〜1重量％的钛和0.01〜1重量％（组合的量）稀土元素中的至少1种。 该合金用作铸件，并且包含在晶粒中基本上均匀沉淀的共晶碳化物和二次碳化物。 如果通过在比实际使用合金的温度高的温度下进行的老化处理形成二次碳化物，则合金的高温强度和高温延展性显着提高。 钴基合金通过精密铸造形成燃气轮机喷嘴。