公开(公告)号：JPH1022532A

公开(公告)日：1998-01-23

申请号：JP18675296

申请日：1996-06-27

Applicant: NAT AEROSPACE LAB

Inventor： TANJI YASUNORI ,  KUMAGAI TATSUO ,  MORIYA SHINICHI ,  OSHIMA TAMIO ,  SHINNO MASAYUKI ,  TADA YASUO

IPC: H01L35/08 ,  H01L35/06 ,  H01L35/16 ,  H01L35/32

Abstract: PROBLEM TO BE SOLVED: To prevent deterioration of thermoelectric conversion characteristics caused by sublimation and oxidation, etc., of an element in PbTe, for example and attain stable thermoelectric conversion for a long period by crowning at least a high temperature side end part of a thermo-element with a conductive block having a recessed part in which the end part is force-fitted. SOLUTION: Since edge parts 1H and 1L of a thermo-element 1 are crowned with a conductive block 3, the end part can be electrically and thermally combined to other parts by the conductive block 3. The thermo-element 1 and the conductive block 3 are combined by force-fitting a thermo-element end part to the recessed part 1 of the conductive block 3. Since there is a possibility of generation of a gap between a thermo-element and a conductive block microscopically, generation of heat shearing stress can be avoided even if the high temperature side end part 1H is subjected to high temperature heating. Furthermore, it is possible to avoid generation of sublimation and oxidation of a constituent element of the thermo-element 1 and prevent variation of an element and deterioration of characteristics.

公开(公告)号：JPH09325034A

公开(公告)日：1997-12-16

申请号：JP16360096

申请日：1996-06-05

Applicant: NAT AEROSPACE LAB

Inventor： TAKIZAWA MINORU

IPC: G01C19/66

Abstract: PROBLEM TO BE SOLVED: To greatly improve electromagnetic environment resistance by using an optical excitation laser instead of a laser oscillating tube, separating an optical excitation light source and a signal processing part from a ring laser part, and combining them by an optical fiber. SOLUTION: The transmitting part for optical energy and optical signal comprises optical fiber OF and optical connector OC, and its function is to connect a pure optical angular detection part with an optical excitation light source and signal processing part, to send to the pure optical angular velocity detection part an optical energy for exciting the solid laser element LR outputting from the optical excitation light source and signal processing part, and the transmit an optical signal for angular velocity information to the optical excitation light source and signal processing part. The optical excitation light source and signal processing part outputs an optical energy for exciting the solid laser element LR by a semiconductor laser light source device, and the signal processing device converts the angular velocity information signal inputted as an optical signal from an optical energy and optical signal transmitting part, into an electric signal, thereby outputting angular velocity and quantity of measured angular velocity.

公开(公告)号：JPH09236076A

公开(公告)日：1997-09-09

申请号：JP4001696

申请日：1996-02-27

Applicant: NAT AEROSPACE LAB ,  TOSHIBA CORP

Inventor： KITAMURA MASAHARU ,  MIYAZAKI KATSUHIRO ,  HAYAKAWA YUKIO ,  YOSHIDA HIDEKI ,  MAEDA TOSHIO ,  AKAI KIMIKAZU

IPC: F03H1/00

Abstract: PROBLEM TO BE SOLVED: To provide a large ion engine which is equipped with an accelerating electrode whose aperture is large and which is thick, and is low fuel consumption and has a long life. SOLUTION: This ion engine introduces working gas to the inside of a discharge container 3 arranged in a sealed case 1, generates plasma in the electric discharge container 3 by ionizing this working gas, and also retains plasma in a range separated from the inner wall of the discharge container 3, takes out ion in plasma by an accelerating electrode 4 so as to be accelerated and feed ion from an ion beam passing hole 5 to the outside of the discharge container 3 so as to generate thrust. Hereupon, a grid plate 4b composing the accelerating electrode 4 is formed by laminating a plurality of thin grid plates 21a, 21b, 21c to which the ion beam passing hole is formed.

公开(公告)号：JPH09152105A

公开(公告)日：1997-06-10

申请号：JP33425995

申请日：1995-11-30

Applicant: NAT AEROSPACE LAB

Inventor： HAYASHI SHIGERU ,  YAMADA SHUJI

IPC: F23D14/02 ,  F23C99/00 ,  F23R3/28 ,  F23C11/00

Abstract: PROBLEM TO BE SOLVED: To achieve substantially the same NOx exhaust level as in uniform premixing combustion, and solve latent problems such as self-firing and back fire. SOLUTION: Part of a fuel 18 is injected to air on a first air passage 17, at an inlet of which a first air turning unit 15 is provided, with a first fuel nozzle 19 disposed on a burner central axis and remaining part is injected to an air stream flowing through a second air passage 25 where a second turning unit 16 is provided from a fuel injection hole 24 of a second fuel nozzle 23 formed in a wall surface of an outer ring 22. When a fuel flow rate is less or with conditions of low air temperature, the fuel is injected to the first air passage, but in the opposite case, a ratio of fuel injection to the second air passage can be automatically increased. Accordingly, combustion is achieved under the combustion conditions where production of non-combusted components and NOx can be restricted over a wide range the fuel flow rate.

公开(公告)号：JPH0842851A

公开(公告)日：1996-02-16

申请号：JP19615694

申请日：1994-07-29

Applicant: NAT AEROSPACE LAB

Inventor： HAYASHI SHIGERU ,  YAMADA SHUJI ,  SHIMODAIRA KAZUO

IPC: F23R3/06 ,  F23R3/12 ,  F23R3/26 ,  F23R3/30 ,  F23R3/34

Abstract: PURPOSE:To provide a dilute premixing combustion gas turbine combustor in which a flow rate change in premixing air can be increased, a fuel/air ratio in a combustion region can satisfactorily be diluted for a wide load variation range, and an exhaust level of NOx can be limited to a very low value irrespective of the load. CONSTITUTION:There is provided a flow passage through which premixing air 14 and dilution air 15 flow, and there is disposed a flow rate distribution mechanism of the premixing air and the dilution air in the flow passage. For the flow rate distribution, it is so constituted that when one is maximum, the other is minimum, and that they are made continuously variable from the maximum to the minimum, and further that a fuel/air ratio of the premixing air is controlled by adjusting the flow rate distribution matching with the flow rate change in the premixing fuel. For the flow rate distribution it is done by an air distributor which is operated with a driver 20, and the location of a valve of the ditributor is adjusted matching with the flow rate change in the premixing fuel.

公开(公告)号：JPH0816410A

公开(公告)日：1996-01-19

申请号：JP14832294

申请日：1994-06-29

Applicant: NAT AEROSPACE LAB ,  FUJITSU LTD

Inventor： SUEMATSU KAZUYO ,  MIYOSHI HAJIME ,  KARUBE YUKIHIRO

IPC: G06F9/48 ,  G06F9/46 ,  G06F15/177

Abstract: PURPOSE:To enable a parallel processing system to perform the execution of jobs using an optional number of processor elements, the setting of job priority corresponding to a system resource demand quantity, the execution of proper jobs corresponding to the set priority, the preferential processing of an emergent job, etc. CONSTITUTION:Jobs which wait to be executed and jobs which are being executed are managed by using plural job queues, and a queue to be assigned to and in-queue priority are set corresponding to a system resource demand quantity, a wait time, etc., of each job. The queue to be assigned to and in-queue priority are dynamically reviewed and the jobs are scheduled according to them. A nonpreferential job which is being executed is an object to be swapped out and a processor element which is swapped out is assigned so as to actuate a preferential execution job in a queue.

公开(公告)号：JPH07189737A

公开(公告)日：1995-07-28

申请号：JP33380293

申请日：1993-12-27

Applicant: NAT AEROSPACE LAB ,  HONAMI SHINJI ,  ISHIKAWAJIMA HARIMA HEAVY IND

Inventor： SAKATA KIMIO ,  YANAGI RYOJI ,  MURAKAMI SATORU ,  SHINDO SHIGEMI ,  HONAMI SHINJI ,  SHIZAWA TAKAAKI ,  SAKAMOTO KAZUYUKI ,  SHIRAISHI KAZUO ,  KOMI JUNSUKE

IPC: F02C7/04 ,  F02K7/10

Abstract: PURPOSE:To reduce the nonuniformity of total pressure distribution and improve the total pressure recovery factor of a diffuser by setting a range of forming side wall air bleed holes, disposed at both side walls of a throat part so as to bleed air from the inner surface of the side walls, behind the vertical shock wave generating position of the throat part. CONSTITUTION:An air bleed hole 24 for a side wall is formed of plural air bleed holes SB1, SB2, SB3 in front and in the rear of the formed position of a throat air bleed clearance 8, and these air bleed holes are formed at the inner wall of a side wall 21. The respective air bleed holes SB1-SB3 are formed of small hole groups numerously opened in the inner wall of the side wall 21, over the whole height area, connected to an air bleed system outward of an air intake passage 4, and so set as to allow the presence of bleed air to be switched and the bleed air flow to be set in that block range. Interference between vertical shock waves S5 and a boundary layer growing at a corner part between the side wall 21 and the face of the cowl 6 is generated in the vicinity of a throat, but such three-dimensional interference can be suppressed by the throat side wall air bleed.

公开(公告)号：JPH07134085A

公开(公告)日：1995-05-23

申请号：JP30321793

申请日：1993-11-10

Applicant: NAT AEROSPACE LAB

Inventor： FUJISAWA YOSHIAKI ,  TAKI MASANOBU ,  MATSUSUE KATSUTOSHI

IPC: G01N3/30

Abstract: PURPOSE:To make possible the determination of strength characteristic of ceramics simply and quickly in the tensile impact destruction at a high temperature from the normal temperature using a test piece with a simple shape by arranging a grabber, a strain gauge, a hollow pipe, a weight, a data measurement processing/displaying device, a heating furnace and the like. CONSTITUTION:A weight 8 is set in a hollow cylinder pipe 7 hanging on a grabber 2 at a prescribed height and is made to fall with a manual type trigger. The weight 8 falls by a dead load and hits the bottom part of the cylinder pipe 7 at a fixed speed. The current impact power is transmitted to a wall surface of the cylinder pipe 7 to be propagated to a test piece 1. As the cylinder pipe 7 is not bound with respect to the rotation about a vertical axis no twisting load is applied on the test piece 1. The speed at the final end of the weight 8 is detected with an optical type sensor provided at a lower part of the cylinder pipe 7 to be sent to a data measurement processing/display device 9. Heat from a heating furnace 4 (controllable to 1,600 deg. from the normal temperatures is applied to the test piece 1. Data from the strain gauge 3 stuck on the grabber 2 are sent to the device 9 and undergoes a measurement processing.

公开(公告)号：JPH0749060A

公开(公告)日：1995-02-21

申请号：JP21104093

申请日：1993-08-04

Applicant: NAT AEROSPACE LAB

Inventor： SAKAMOTO HIROSHI ,  YATSUYANAGI NOBUYUKI ,  SATO KAZUO ,  SASAKI MASAKI

IPC: F02K9/52

Abstract: PURPOSE:To obtain an ejector for a rocket engine which can keep highly efficient combustion with a widely variable air-fuel mixture without enlarging a capacity of a burner. CONSTITUTION:An outlet of a gas propellant ejector 11 has a tapered inside which contracts on an axis of a liquid propellant ejector 12. The gas propellant is struck against the liquid propellant ejected from the liquid propellant ejector 12. The gas propellant, entering the liquid propellant, changed into bubbles. The liquid propellant is further atomized in an expansion process in a burner 2 for easy combustion.

公开(公告)号：JPH0712708A

公开(公告)日：1995-01-17

申请号：JP15230193

申请日：1993-06-23

Applicant: NAT AEROSPACE LAB ,  MITSUBISHI HEAVY IND LTD

Inventor： SAKURANAKA NOBORU ,  WAKAMATSU YOSHIO ,  SHINNO MASAYUKI ,  ADACHI NAOTO

IPC: G01M13/00 ,  G01N17/00

Abstract: PURPOSE:To evaluate a heat-resistant material and a cooling structure test specimen in severer aerodynamic heating environment by generating a hotter high-speed gas flow. CONSTITUTION:In a hot gas flow evaluation test device in which a fuel 2 is burned with oxidizing agent 3 in a combustor 1 to generate hot gas, the gas is led to a nozzle as it is and accelerated to a supersonic speed, and a test specimen 6 is set in a high temperature and high speed gas flow 5 to make various types of evaluations, an arc heating device 11 is set in the downstream side from the combustor 1, and a hot gas generated by combustion of the fuel 2 and oxidizing agent 3 in the combustor 1 is further heated.