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1. 发明专利

JP2000136732A GAS TURBINE CONTROLLER 失效
公开(公告)号：JP2000136732A
公开(公告)日：2000-05-16
申请号：JP31207398
申请日：1998-11-02
申请人： TOSHIBA CORP , TOSHIBA SYST TECH
发明人： ICHIKAWA SATOSHI , MIZUNO TAKASHI , YATABE MITSUHIRO
IPC分类号： F02C7/26 , F02C9/00 , F02C9/46
摘要： PROBLEM TO BE SOLVED: To protect a gas turbine plant from damage by an excessive temperature by imparting an opening limiting value of a fuel pressure control valve on the basis of opening of a fuel flow control valve, and performing a gas turbine trip when opening of the fuel pressure control valve exceeds the opening limiting value in ignition operation of a combustor. SOLUTION: In a gas turbine controller for feeding combustion gas to a gas turbine 8 by mixedly burning delivery air from an air compressor 2 and fuel fed from fuel piping by a combustor 4, a fuel pressure control valve 5 is interposed in primary side fuel piping of a fuel flow control valve 6 arranged in the fuel piping. This fuel pressure control valve 5 is controlled by the gas turbine controller 11 according to output of a first pressure detector 18 for detecting primary side fuel pressure to control the primary side fuel pressure to set an opening limiting value of the fuel pressure control valve 5 on the basis of opening of the fuel flow control valve 6 at this time. When opening of the fuel pressure control valve 5 exceeds the opening limiting value in ignition operation of the combustor 4, a feed of fuel is cut off.

2. 发明专利

JP2002227660A GAS TURBINE CONTROL DEVICE 失效
公开(公告)号：JP2002227660A
公开(公告)日：2002-08-14
申请号：JP2001027160
申请日：2001-02-02
申请人： TOSHIBA CORP , TOSHIBA SYST TECH
发明人： ICHIKAWA SATOSHI , NAKANO TAKAFUMI , YATABE MITSUHIRO
IPC分类号： F01D17/20 , F01K23/10 , F02C9/28
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine control device by which a stable speed/load control operation can be performed without causing a motoring operation for a power generator even when a system frequency fluctuates during the change of a combustion mode in a load increase or during an initial load is held. SOLUTION: This gas turbine control device which outputs the fuel command signal for a gas turbine by obtaining a speed/load control signal from the deviation between a governor setting signal and the speed signal of the gas turbine, is provided with a storage means for storing a gas turbine speed, and a means for generating a speed/load controlling and compensating signal which compensates the speed/load control signal based on the deviation between the stored value for gas turbine speed signal outputted from the storage means and an actual gas turbine speed.

3. 发明专利

JPH11173163A GAS TURBINE EQUIPMENT 失效
公开(公告)号：JPH11173163A
公开(公告)日：1999-06-29
申请号：JP36240097
申请日：1997-12-12
申请人： TOSHIBA CORP , TOSHIBA SYST TECH
发明人： NAKANO TAKAFUMI , ICHIKAWA SATOSHI , OTONARI SHIYUUNOSUKE , MIZUNO TAKASHI , YATABE MITSUHIRO
IPC分类号： F02C9/28 , F02C9/34 , F23R3/28
摘要： PROBLEM TO BE SOLVED: To maintain a stable combustion state by checking a loss of kinder. SOLUTION: Output from a comparator 45 is turned on, and output from a flip-flop FF 49 is turned on when the fuel nozzle pressure ratio NPR reaches the given pressure ratio VRA or less. A signal selector 41 is switched to a ratio setting device 39 side to select a ratio setting total closing signal RA. A fuel flow rate control signal FSRDL for diffusion combustion in a first system decreases with the given rate to zero, entirely closing a fuel flow rate control valve GCVL. A fuel flow rate control signal FSRD for diffusion combustion comes to equal to a fuel flow rate control signal FSRDH for diffusion combustion in a second system. Thus, fuel for diffusion combustion passes through a fuel flow rate control valve GCVLH only in the second system. The fuel nozzle pressure ratio in the second system is maintained to the given value VRA or more even for a decrease in the diffusion fuel flow rate caused by a succeeding increase in a load, and an elevation in combustion gas temperature.

4. 发明专利

JP2001318716A TEST DEVICE FOR PLANT CONTROLLER 失效
公开(公告)号：JP2001318716A
公开(公告)日：2001-11-16
申请号：JP2000139369
申请日：2000-05-12
申请人： TOSHIBA CORP , TOSHIBA SYST TECH
发明人： NAKANO TAKAFUMI , ICHIKAWA SATOSHI , YATABE MITSUHIRO
IPC分类号： F01D17/24 , F02C7/00 , G05B23/02
摘要： PROBLEM TO BE SOLVED: To provide a test device of a plant controller for easily turning the operation state of a gas turbine plant to a desired operation state and easily switching a actual valve unit and a simulation model. SOLUTION: The control state amount and test items of the plant controller and a plant simulator are stored in a data storage means 57. A test item selection means 58 selects the test item stored in the data storage means 57 at the time of testing the plant controller and a state setting means 59 sets the control state amount to the plan controller and the plant simulator so as to be the operation state of the test item selected in the test item selection means 58. Thus, the operation state of the test item is reproduced.

5. 发明专利

JP2000049568A SURFACE ACOUSTIC WAVE FILTER 失效
公开(公告)号：JP2000049568A
公开(公告)日：2000-02-18
申请号：JP14878799
申请日：1999-05-27
申请人： TOSHIBA CORP
发明人： ICHIKAWA SATOSHI
IPC分类号： H03H9/64 , H03H9/145 , H03H9/25
摘要： PROBLEM TO BE SOLVED: To provide a compact surface acoustic wave filter with a high degree of freedom in the design of a frequency characteristic and with an excellent out of band characteristic. SOLUTION: The surface acoustic wave filter is the resonator-type one characterized in such a way that an IDT (interdigital converter) 10 which is arranged on a piezoelectric substrate so as to permit surface acoustic wave propagating directions to coincide and a reflector which is arranged on the piezoelectric substrate so as to sandwich IDT 10 along the surface acoustic wave propagating direction are disposed, IDT 10 is provided with a first area 11 having equal to or more than a half of electrode fingers which constitute IDT 10 and the second area 12 other than the first one and the phase of surface acoustic wave excited by the first area 11 is opposite to the one excited by the second area 12. The frequency characteristic and susceptance characteristic of the filter are controlled by selecting the pitch and the number of pairs of the electrode fingers 12f of the second area and, then, the characteristic is improved.

6. 发明专利

JPH10261932A SURFACE ACOUSTIC WAVE FILTER AND METHOD FOR CONFIGURING THE SURFACE ACOUSTIC WAVE FILTER 失效
公开(公告)号：JPH10261932A
公开(公告)日：1998-09-29
申请号：JP32836197
申请日：1997-11-28
申请人： TOSHIBA CORP
发明人： ICHIKAWA SATOSHI
IPC分类号： H03H9/145 , H03H9/64
摘要： PROBLEM TO BE SOLVED: To obtain a desired frequency characteristic by minimizing an impedance change in the case of controlling characteristics of a surface acoustic wave filter. SOLUTION: An interdigital transducer(IDT) that has a 1st region where 1st electrode fingers connected so as to have a 1st polarity and 2nd electrode fingers connected so as to have a 2nd polarity are alternately placed, a 2nd region 101b where even numbers of the electrode fingers consisting of at least one of the 1st electrode finger and three of the 2nd electrode fingers are arranged as a unit periodically or odd numbers of the electrode fingers consisting of at least one of the 1st electrode finger and two of the 2nd electrode fingers are arranged as a unit periodically is placed on a piezoelectric substrate 110. The 2nd region 101b acts only as a reflector for a surface acoustic wave stimulated in the 1st region, adds a capacitive component to the 2nd region and reduces the impedance without changing the number of pairs or an opening length of the electrode fingers of the IDT arranging the 1st region and 2nd region 101b.

7. 发明专利

JP2016003907A 放射線検出器及びその製造方法审中-公开
公开(公告)号：JP2016003907A
公开(公告)日：2016-01-12
申请号：JP2014123356
申请日：2014-06-16
申请人： TOSHIBA CORP , TOSHIBA ELECTRON TUBES & DEVIC
发明人： HONMA KATSUHISA , TAKATORI KOJI , HORIUCHI HIROSHI , ICHIKAWA SATOSHI
IPC分类号： G01T1/20
摘要：【課題】省スペース化と防湿性能の向上とを図ることができる放射線検出器及びその製造方法を提供することである。【解決手段】実施形態に係る放射線検出器は、基板と、前記基板の一方の面側に設けられた複数の光電変換素子と、を有するアレイ基板と、前記複数の光電変換素子の上に設けられ、放射線を蛍光に変換するシンチレータ層と、前記基板の一方の面側に設けられ、前記シンチレータ層を囲む壁体と、前記シンチレータ層と、前記壁体との間に設けられた充填部と、前記シンチレータ層の上方を覆い、周縁部近傍が前記充填部の上面に接合された防湿体と、を備えている。【選択図】図2

8. 发明专利

JP2004245143A Control device and control method for steam turbine 审中-公开
公开(公告)号：JP2004245143A
公开(公告)日：2004-09-02
申请号：JP2003036637
申请日：2003-02-14
申请人： Toshiba Corp , 株式会社東芝
发明人： ICHIKAWA SATOSHI , INADA HIROSHI , OKAYASU NORIYUKI
IPC分类号： F01D17/24
摘要： PROBLEM TO BE SOLVED: To prevent repetition of an IPR limitation operation caused by drop in inlet steam pressure, after a steam regulating valve is throttled by the IPR limitation operation responding to drop in inlet steam pressure to suppress the drop of the inlet steam pressure.
SOLUTION: A speed instruction value (e) is calculated from a deviation between a rated speed set value (c) and an actual speed (b) of a steam turbine. The speed instruction value (e) is added to a load set value (f) set by a load setting device 24 to calculate a load instruction value (g). A load limitation value (m) setting for limiting maximum output of the steam turbine is calculated. A pressure instruction value (k) instructing to throttle the regulating valve when the inlet steam pressure (h) of the steam turbine is lower than a predetermined value is calculated. Minimum value is selected from the load instruction value, load limitation value, and pressure instruction value. Opening of the governing valve is controlled based on the minimum value (n). When the pressure instruction value is the minimum value and the pressure instruction value is lowered, the load limitation value is forced to follow the pressure instruction value.
COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2001257550A METHOD FOR MANUFACTURING SURFACE ACOUSTIC WAVE ELEMENT 失效
公开(公告)号：JP2001257550A
公开(公告)日：2001-09-21
申请号：JP2000069055
申请日：2000-03-13
申请人： TOSHIBA CORP
发明人： ICHIKAWA SATOSHI , ETSUNO MASAYOSHI
IPC分类号： H03H3/08 , H03H9/145
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a surface acoustic wave element which is excellent in migration resistance and can contribute to the improvement of working precision and production efficiency. SOLUTION: A1 is deposited on the surface of a piezoelectric substrate 1 to be etched to be a pattern obtained by negatively inverting an electrode pattern, and Cu or a Cu-based alloy is deposited so as to cover an obtained A1 pattern 2. A Cu film 3 is flattened by CMP and when the surface of the A1 pattern 2 appears, it is finished. A Cu electrode 3 is obtained by removing the A1 pattern 2. Thus, Cu electrode can be formed precisely and with high production efficiency by patterning A1 easy to work and burying Cu in a part where the A1 pattern never exists and removing the A1 pattern.

10. 发明专利

JP2000068781A SURFACE ACOUSTIC WAVE DEVICE 失效
公开(公告)号：JP2000068781A
公开(公告)日：2000-03-03
申请号：JP23902198
申请日：1998-08-25
申请人： TOSHIBA CORP
发明人： ICHIKAWA SATOSHI , MITOBE SEIICHI
IPC分类号： H03H9/25 , H03H9/64
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of a ripple and a spuriousness and to attain miniaturization. SOLUTION: A surface acoustic wave element 2 is disposed on the front surface of a piezoelectric substrate 1 and two states by an input interdigital transducer 3 and an output interdigital transducer 4 are also provided. A groove shaped recessed part 5 is disposed on the front surface being nonparallel with surface acoustic wave along the longitudinal direction of the piezoelectric substrate 1. The recessed part 5 is arranged at a place except a part which is electrically connected to a stage interval part between the transducers 3 and 4 so that interference by the leakage component of surface acoustic wave or a horizontal mode or the like is not received and, then, an excellent out of band attenuating quantity is secured.

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