公开(公告)号：JPH06301650A

公开(公告)日：1994-10-28

申请号：JP5118693

申请日：1993-03-12

Applicant: NAT AEROSPACE LAB ,  FUJITSU LTD

Inventor： MIYOSHI HAJIME ,  FUKUDA MASAHIRO ,  IKEDA MASAYUKI ,  TAKAMURA MORIYUKI

IPC: G06F13/00 ,  G06F15/16 ,  G06F15/173 ,  H04L12/701 ,  H04L12/721 ,  H04L12/56

Abstract: PURPOSE:To simplify a communication procedure and to reduce the overhead of processing by efficiently executing repeating transfer through other processors in a data transfer repeating mechanism for mutually executing data communication through other processors among processors provided in a data processing system such as a parallel computer system. CONSTITUTION:Each of plural processors 10-1 to 10-n is provided with a data transfer control part 26 for specifying the device numbers of one or more through processors in addition to the device number of the final destination processor in the heater part of a transmission packet and returning a receiving packet to a network 12 by setting up the next through processor to the next destination without processing body data at the time of detecting that its own processor is not the final destination processor based upon device numbers in the header data of the receiving packet or returning the packet to a network 12 by setting up the final destination processor to the next destination when there is not next through processor.

公开(公告)号：JPH06231101A

公开(公告)日：1994-08-19

申请号：JP1333793

申请日：1993-01-29

Applicant: NAT AEROSPACE LAB ,  FUJITSU LTD

Inventor： MIYOSHI HAJIME ,  FUKUDA MASAHIRO ,  IKEDA MASAYUKI ,  TAKAMURA MORIYUKI

IPC: G06F13/00 ,  G06F15/16 ,  G06F15/173

Abstract: PURPOSE:To monitor the time of a packet unreceivable state due to the invalidation of a receiving butter and to evade system abnormality such as network hanging in respect to a receiving time-out detecting mechanism to be used for communication processing between plural processors in a data processing system such as a parallel computer system. CONSTITUTION:A comparing means 45 compares and judges the updating value of a receiving timer 50 for measuring the time of the invalidated state of the receiving buffer 45 in a main storage part 16, and at the time of detecting the arrival of an updated result at a specific value, generates an interruption to an instruction processing part 14 to execute processing for separating a processor 10 from a switching circuit in a network 12. The means 54 detects the updated result of the timer 50 at two stages specified by the 1st and 2nd specific values and executes processing so as to generate an interruption to the processing part 14 at the time of detecting arrival at the 1st specific value and separate the processor 10 concerned from the switching circuit of the network 12 at the time of detecting arrival at the 2nd specific value.

公开(公告)号：JPH06205549A

公开(公告)日：1994-07-22

申请号：JP35855092

申请日：1992-12-28

Applicant: NAT AEROSPACE LAB

Inventor： SHINNO MASAYUKI

IPC: H02S99/00 ,  H02J50/00 ,  H02J50/30 ,  H02N3/00 ,  H02N6/00 ,  H02J17/00

Abstract: PURPOSE:To make it possible to utilize energy from a moon power station on the ground, by converting the generated energy from the moon power station into an ultraviolet laser and converting the ultraviolet laser into an infrared laser at a space base and converting the infrared laser into a power at a ground base. CONSTITUTION:A solar light power station or a nuclear power station 3 is installed on the surface of the moon 2. A satellite 4 as a relay base can be relayed to a receiving base 5 on the ground. An ultraviolet laser 6 is used between the moon 2 and the satellite 4, and an infrared laser 7 is used between the satellite 4 and the ground base 5. That is, the ultraviolet laser 6 is converted into the infrared laser 7 by the satellite 4, and the infrared laser 7 is transmitted to the ground base 5. In the ground base 5, the infrared laser 7 is converted into a power by a photoelectric converter made of P/1/N, and the power is transmitted to necessary places. Thus, an energy from the solar light power station or the nuclear power station 3 installed on the surface of the moon 2 can be utilized on the ground.

公开(公告)号：JPH06167416A

公开(公告)日：1994-06-14

申请号：JP32099692

申请日：1992-11-30

Applicant: NAT AEROSPACE LAB ,  ISHIKAWAJIMA HARIMA HEAVY IND

Inventor： SHINDO SHIGEMI ,  HOKARI TAKASHI

IPC: G01M9/06

Abstract: PURPOSE:To visualize the mode of flow without exerting effect on the flow through the gaps between blade ends in the device. CONSTITUTION:The blade pieces 4 fixed to one side of opposed passage walls in a cantilevered state and arranged so as to provide a gap to the other side passage wall, a visualizing fluid jet means 6 allowing a visualizing fluid 5 to flow out from the blade ends 4a of the blade pieces 4, the window parts 7 provided to the passage walls 2a, 2b on the side of the blade ends 4a and a planar light supply means 8 allowing planar light having a normal line almost parallel to blade chords 4b to be incident in the longitudinal direction of the blade pieces 4 from the outside are provided. Further, a planar light moving means 9 moving planar light in parallel to the direction along the blade chords 4b and the imaging means 10 arranged at the downstream position on the extension line of the blade chords 4b and imaging the reflected light due to the visualizing fluid of the irradiated planar light are provided. By the parallel movement under the irradiation with planar light, the flow through the gaps between the blade ends of the blade pieces 4 along the blade cords 4b is continuously visualized.

公开(公告)号：JPH05118947A

公开(公告)日：1993-05-14

申请号：JP28272491

申请日：1991-10-29

Applicant: NAT AEROSPACE LAB ,  NISSAN MOTOR

Inventor： MITANI TORU ,  IZUMIKAWA MUNEO ,  OKAMOTO HISAO

IPC: G01M3/02 ,  G01M3/00 ,  G01M3/20

Abstract: PURPOSE:To test the soundness of the material at the time of manufacturing the material such as airtight type material or the like, which is mainly composed of porous material as the base thereof, or after the heat resistant load test. CONSTITUTION:High-temperature gas 5 is supplied to the surface side of an airtight type material 2, which is mainly composed of porous material as the base thereof, by a gas nozzle 6, and the material 2 is heated at a high temperature by a gas burner 8. The gas inside of an airtight chamber 11, which is leaked to the back surface side of the material 2, is picked and analyzed by an analyzing device such as a gas chromatography or the like to test the soundness of the material 2.

公开(公告)号：JPH04300417A

公开(公告)日：1992-10-23

申请号：JP494491

申请日：1991-01-21

Applicant: NAT AEROSPACE LAB ,  EBARA CORP ,  EBARA RES CO LTD

Inventor： NAKAJIMA ATSUSHI ,  MURAKAMI TSUTOMU ,  SHINOZAKI HIROYUKI ,  SHIRAO YUJI

IPC: F04D19/04 ,  F16C32/04 ,  F16F15/03

Abstract: PURPOSE:To damp the vibration of a rotary shaft at a device in which a rotary body gravity center and an active type magnetic bearing operation center are displaced axially, by providing displacement sensors at least two positions whose axial directions are different, controlling electrification to the active type magnetic bearing from these outputs. CONSTITUTION:A rotary machine equipped with a rotor 12, a stator 14 and a rotary shaft 16 integrally constituted with the rotor 12 possesses inside the stator 14 a motor 18 whose purpose is to rotate the rotary shaft 16 and the rotor 12. Also, an active type magnetic bearing 22 containing an electromagnet 20 whose purpose is to control a rotary shaft 16 radial position, is provided, and at the same time a passive type magnetic bearing 30 whose purpose is to retain a rotor axial position fixedly, is equipped between the outer periphery surface of the stator 14 and the inner periphery surface of the rotor 12. Hereupon, a rotation detector 28 and displacement sensors 24, 26 are provided at two positions whose axial directions are different, and the outputs of displacement sensors 24, 26 are subjected to operation processing by means of a controller, and the amount of electrification supplied to the coil of the bearing 22 electromagnet 20 is controlled.

公开(公告)号：JPH04290609A

公开(公告)日：1992-10-15

申请号：JP691091

申请日：1991-01-24

Applicant: NAT AEROSPACE LAB ,  EBARA CORP ,  EBARA RES CO LTD

Inventor： MURAKAMI TSUTOMU ,  NAKAJIMA ATSUSHI ,  SHINOZAKI HIROYUKI ,  SHIRAO YUJI ,  KANEMITSU YOICHI

IPC: F16C32/04

Abstract: PURPOSE:To reduce space occupied by magnetic materials and make axial rigidity adjustable and at the same time improve it and increase passive stability rigidity and also realize the decrease of lead magnetic flux and the facilitation of processing. CONSTITUTION:Magnetic flux density is increased and saturation is easily realized and also leak magnetic flux is dereased and at the same time processing is made easy by putting alternately in lyers razor blade thin magnetic materials from 7a to 7j, from 9a to 9j and platelike permanent magnets from 1a to 1i, from 2a to 2i, providing magnetic materials 7i, 7j, 9i, 9j at both end portions. In addition, as plural ringlike magnetic materials are equipped, axial rigidity is improved very much, and large passive stability rigidity is obtained. Also, axial rigidity becomes appropriately adjustable by changing appropriately a magnetic material layer number.

公开(公告)号：JPH04194371A

公开(公告)日：1992-07-14

申请号：JP32311990

申请日：1990-11-28

Applicant: NAT AEROSPACE LAB ,  TOSHIBA CORP

Inventor： MIYAZAKI KATSUHIRO ,  YOSHIDA HIDEKI

IPC: F03H1/00

Abstract: PURPOSE:To check a temperature rise in a discharge vessel by installing first, second and third high temperature emissivity layers in an outer surface of the discharge vessel, an inner surface of a thruster case and a part of the outer surface, respectively, and setting up a low temperature emissivity surface forming means in a remaining part of the thruster surface. CONSTITUTION:A high temperature emissivity layer 34 consisting of a blackening layer or the like is installed in a full or partial portion of an outer surface of a discharge vessel 6, and a similar high temperature emissivity layer 36 is made up in a full or partial portion likewise in an inner surface of a thruster case 2a. Another high temperature emissivity layer 40 consisting of an alumina thermal spraying layer or the like is installed on an incline of the outer surface of an uneven part 38 of the thruster case 2a, and a low temperature emissivity layer 42 consisting of a nickel plating layer or the like is formed on an remaining outer surface of the thruster case 2a. In succession, heat transferred to the thruster case from the discharge vessel is radiated into space from the high temperature emissivity layer 40 and thereby temperature in the discharge vessel is checked down to the specified value.

公开(公告)号：JPH0492116A

公开(公告)日：1992-03-25

申请号：JP20695490

申请日：1990-08-02

Applicant: NAT AEROSPACE LAB ,  NTN ENG PLAST CORP

Inventor： NOSAKA MASATAKA ,  KIKUCHI MASATAKA ,  UMEMOTO NOBORU

IPC: F16C33/44 ,  F16C33/56

Abstract: PURPOSE:To permit use under severe conditions and obtain a material which is excellent in slide characteristics and wear resistance by using tetrafluoroethylene resin containing magnesium oxide. CONSTITUTION:Tetrafluoroethylene resin containing magnesium oxide is used as a material for an antifriction bearing holder. The material for the antifriction bearing holder is provided with wear resistant characteristics added by magnesium oxide to the tetrafluoroethylene resin which is a main mold material and has self lubrication, so that the material is excellent in wear resistance and lubrication even at an extremely low temperature.

公开(公告)号：JPH03258958A

公开(公告)日：1991-11-19

申请号：JP5417390

申请日：1990-03-06

Applicant: NAT AEROSPACE LAB

Inventor： KUDO KENJI ,  MURAKAMI JUNRO ,  KOMURO TOMOYUKI ,  TANIKOU ICHIROU ,  MASUTANI GORO ,  CHINZEI NOBUO ,  WAKAMATSU YOSHIO ,  KARITA TAKESHI

IPC: F02K7/14 ,  F02C9/28

Abstract: PURPOSE:To maintain the efficient working condition over a wide range of the number of mat without a complex mechanism and a control circuit by mixing the combustion inhibitor and the combustion accelerator in the fuel for scram jet, and adjusting a mixing quantity of the both to control the progress of the combustion in a scram jet combustor, and controlling the working condition. CONSTITUTION:The combustion inhibitor 4 and/or the combustion accelerator 5 are mixed in the fuel 2 for scram jet, and a mixing quantity of the both is adjusted to control the progress of the combustion in a scram jet combustor 1, and the working condition is controlled with control valves 6 - 8. At this stage, halone, carbon dioxide, alkali metal compound powder and water or the like is used as the combustion inhibitor 4, and silane, alkyl aluminium and hydrazine or the like is used as the combustion accelerator 5.