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1. 发明专利

JPS612307A GAS COOLING TYPE CURRENT LEAD FOR SUPERCONDUCTIVE MACHINE 失效
公开(公告)号：JPS612307A
公开(公告)日：1986-01-08
申请号：JP12200084
申请日：1984-06-15
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： SHIMAMOTO SUSUMU , ANDOU TOSHINARI , TADA EISUKE , TAKAHASHI YOSHIKAZU , ISHIHARA AKIRA , SHINDOU YOSHIHIKO , ITOU IKUO
IPC分类号： H01B12/08 , H01F6/00 , H01F6/06 , H02K3/24 , H02K55/00
摘要： PURPOSE:To improve the heat exchanging efficiency of the titled device by a method wherein, a number of electric conductors, which are twisted or knitted at short pitches, are inserted into a metallic cylinder. CONSTITUTION:Twisted conductors 2 or knitted conductors 2 are passed through a stainless steel pipe 1, then heat exchange rate is enhanced by increasing the space factor of the electric conductor located inside the cross section by performing a special work, and the flow of helium gas is made uniform. A small number of superconductive wires can be contained in the above-mentioned conductors having geometrical conditions. As the temperature of gas at the lower end part of a current lead is lower than the critical temperature of the superconductive material, a superconductive state can be maintained at a part of the current lead by performing the above-mentioned procedures, thereby enabling to reduce thermal loss.

2. 发明专利

JPS55111640A VACUUM EXHAUSTER OF SUPERCONDUCTIVE ROTARY MACHINE 失效
公开(公告)号：JPS55111640A
公开(公告)日：1980-08-28
申请号：JP1923379
申请日：1979-02-21
申请人： FUJI ELECTRIC CO LTD
发明人： TAKITA KIYOSHI , SHINDOU YOSHIHIKO
IPC分类号： H02K9/00 , H02K55/00 , H02K55/04
摘要： PURPOSE:To remove magnetic fluid that is scattered and mixed in the vacuum exhaust gas and to prevent the deterioration of performance of the vacuum exhaust pump by providing a trap, to which the centrifugal force is applied, as a part of the vacuum exhauster. CONSTITUTION:Two annular pole blocks 9 that are opposite to each other are provided inside of the cylindrical case 8 in the stator side so that exhaust gas from the aperture of the ring cover 4 of magnetic substance, which corresponds to the outer circumference of the exhaust tube 3, is led to the vacuum pump 16 through the exhaust port 14 provided in the case 8, and the exhaust gas is discharged through the space among plural bar magnets 10 that are bridged between both the opposite end faces of the pole blocks 9. The trap 17 by which magnetic fluid is removed from the exhaust gas is formed between the stator side outlet and the exhauster. The main body of the trap 17 is the U-shaped tube 18 of non-magnetic material, which is a part of the vacuum exhauster circuit, and the magnet 19 is placed in the outer circumference of the bottom of trap 17 so that the magnetic flux, which passes N and S poles of the pole pieces 20 opposite to each other, traverses the flow passage of exhaust gas. In this way, the deterioration of performance at the exhaust pump can be prevented.

3. 发明专利

JPS5423863A MAGNETIC FLUID SEALING EQUIPMENT 失效
公开(公告)号：JPS5423863A
公开(公告)日：1979-02-22
申请号：JP8909777
申请日：1977-07-25
申请人： FUJI ELECTRIC CO LTD
发明人： SHINDOU YOSHIHIKO , KONDOU KOU
IPC分类号： F16J15/43 , H02K5/16 , H02K55/04
摘要： PURPOSE:A suitable sealing equipment in the case of taking out the medium from the rotating shaft to the stator side not to mix or supplying from the stator side to the rotor body.

4. 发明专利

JPS5436510A BALANCING METHOD OF SUPERRCONDUCTING ROTOR 失效
公开(公告)号：JPS5436510A
公开(公告)日：1979-03-17
申请号：JP10340077
申请日：1977-08-29
申请人： FUJI ELECTRIC CO LTD
发明人： SHINDOU YOSHIHIKO
IPC分类号： H02K9/00 , H02K15/16 , H02K19/00 , H02K55/04
摘要： PURPOSE:To prevent occurrence of bending moment on inner cylinder, by providing ballance weight in the proximity of both sides of super-conducting coil supporter to balance inner cylinder then mounting outer cylinder to balance in the proximity of both ends of outer cylinder.

5. 发明专利

JPS5423912A ULTRALOW TEMPERATURE REFRIGERANT INLETTOUTLET SEALING DEVICE FOR SUPERCONDUCTIVE COILLPROVIDED ROTOR 失效
公开(公告)号：JPS5423912A
公开(公告)日：1979-02-22
申请号：JP8899277
申请日：1977-07-25
申请人： FUJI ELECTRIC CO LTD
发明人： KONDOU KOU , SHINDOU YOSHIHIKO
IPC分类号： H02K9/00 , H02K55/04
摘要： PURPOSE:To shorten a dimension of sealing unit, by such manner that in an end face of rotor and its oppositely directing face of refrigerant supply-return device, a ring-shape protrusion at one side and a pair of tube-shape magnets at another side be provided, with a magnetic fluid filled between each of the ring-shape protrusions and each pair of magnets.

6. 发明专利

JPS5296884A SUPER CONDUCTION ENERGY STORING UNIT 失效
公开(公告)号：JPS5296884A
公开(公告)日：1977-08-15
申请号：JP1372176
申请日：1976-02-10
申请人： FUJI ELECTRIC CO LTD
发明人： NISHIO MICHIO , SHINDOU YOSHIHIKO
IPC分类号： H01F6/04 , H01L39/04 , H01L39/14 , H02J15/00
摘要： PURPOSE:To enable initial cooling with uniform and gradual manner, by containing the super conduction coil in the cylindrical liquid He vessel provided in the cylindrical vacuum container, and by blowing the gas with shower from the precooling gas header pipe of ring shape privided on the vessel thru the blow out pipe.

7. 发明专利

JPS55152962A MAGNETIC FLUID SEAL DEVICE 失效
公开(公告)号：JPS55152962A
公开(公告)日：1980-11-28
申请号：JP5884679
申请日：1979-05-14
申请人： FUJI ELECTRIC CO LTD
发明人： TAKITA KIYOSHI , SHINDOU YOSHIHIKO
IPC分类号： F16J15/16 , F16J15/43
摘要： PURPOSE:To prevent damage of a bearing on account of expansion of an inner race of the bearing by circulating gas in a circular gas room to ventilate which is provided in a sealing section of a turning shaft, thereby to cool the sealing section from the turning shaft. CONSTITUTION:A shaft cover 3 is located between the external face of a turning shaft 4 and the internal face of a stationary pole block 2. Fluxes caused by a magnet 8 are concentrated to circular fine projections 31 formed on the cover 3. Magnetic fluid 9 charged in fine projections 3 functions to seal gas. The shaft cover 3 encloses a circular gas room 13 which contains a guide cylinder 121. When the turning shaft 4 is turned to the point where a nozzle 11 at the end of an inlet vent pipe 131 meets an inner through hole 122 formed on the circumference of a spacer 12, jet is fed at high velocity from the nozzle 11 into the gas room 13 to cool the sealing section of the shaft cover 3.

8. 发明专利

JPS5592550A CRYOGENIC REFRIGERANT FEEDER FOR SUPERCONDUCTIVE ROTOR 失效
公开(公告)号：JPS5592550A
公开(公告)日：1980-07-14
申请号：JP16551978
申请日：1978-12-28
申请人： FUJI ELECTRIC CO LTD
发明人： KONDOU KOU , TAKITA KIYOSHI , SHINDOU YOSHIHIKO
IPC分类号： H02K9/00 , H02K55/00 , H02K55/04
摘要： PURPOSE:To prevent heat infiltration into the cryogenic liquid with a simple construction by means of a stepped part or a tapered section provided on the inner surface of a rotary liquid feed tube. CONSTITUTION:As a cryogenic refrigerant 6 flows into a rotary liquid feed tube 2 from a fixed liquid feed tube 1 as indicated by the arrow, the liquid produces a centrifugal force with the rotation of the tube 2 so that the flow thereof shifts to the larger diameter portion along the inner surface of the lquid feed tube 2 with an aid of a stepped part 8. Therefore, in the rotary clearance 5, a thrust develops in the direction of the dotted arrow due to the flow of the liquid moved outward in the radial direction by the centrifugal force, and controls a circulating current between the gaseous phase part and the lqiudi phase part caused by a gas flow moving inward in the raidal direction depending on the difference in the density of gas in the clearance 5. This can reduce heat filtration into the cryogenic liquid due to this circulating current and helps prevent the heat from filtration into the liquid without particular consideration given to the flexural rigidity and the dimensional accuracy of the rotary liquid feed tube.

9. 发明专利

JPS5533921A MAGNETIC FLUID SEAL DEVICE 失效
公开(公告)号：JPS5533921A
公开(公告)日：1980-03-10
申请号：JP10516278
申请日：1978-08-29
申请人： FUJI ELECTRIC CO LTD
发明人： SHINDOU YOSHIHIKO , ISHIHARA AKIRA
IPC分类号： F16J15/43
摘要： PURPOSE:To make the supply of magnetic fluid automatically and promptly operable, even without operating a process to lower the gas pressure with a running ceased of the rotary machine. CONSTITUTION:Two ring-shape ball blocks 2, that surround a rotary shaft 1, are supported to inner circumferential face of a fixed casing 4, and a magnetic unit cylinder 6, facing to inner circumferential face of the above described block 2, is engaged to be installed to the rotary shaft 1, and in the portion of a ring-shape fine protrusion 7 of this cylinder 6, is intermediately placed a magnetic fluid 15 to perform the sealing operation. In this case, with a seal of the portion of the magnetic fluid 15 damagd by any reason and the pressure of a space 11, 13 equalized to transmit an elimination of pressure difference between pressure detectors 22, 23 to a comparator circuit 21, a pluse is transmitted from a pulse transmitter 20, and fed to a pulse motor 18 through an amplifier 19. In this way, an injection device 16 is actuated till a pressure sensor 24 detects a sealing pressure reaching the prescribed value, and the magnetic fluid is fed from a feed path 14.

10. 发明专利

JPS5533920A MAGNETIC FLUID SEAL DEVICE 失效
公开(公告)号：JPS5533920A
公开(公告)日：1980-03-10
申请号：JP10516178
申请日：1978-08-29
申请人： FUJI ELECTRIC CO LTD
发明人： SHINDOU YOSHIHIKO , ISHIHARA AKIRA
IPC分类号： F16J15/43
摘要： PURPOSE:To make the supply of magnetic fluid automatically and promptly operable, even without operating a process to lower the gas pressure with a running ceased of the rotary machine. CONSTITUTION:Two ring-shape ball blocks 2, that surround a rotary shaft 1, are supported to inner circumferential face of a fixed casing 4 through a ''O'' ring 3, and a magnetic unit cylinder 6, facing to inner circumferential face of the above described block 2, is engaged to be installed to the rotary shaft 1 through ''O'' ring 5, and in the portion of a ring-shape fine protrusion 7 on this cylinder 6 is intermediately placed a magnetic fluid 15 to perform the sealing operation. In this case, when damaged a seal of the magnetic fluid 15 portion deriving from any reason, pressures of a space 11, 13 are equalized to eliminate a pressure difference between pressure detectors 22, 23. With this pressure signal if transmitted to a coincidence circuit 21, a pulse is transmitted from a pulse transmitter 20, and fed to a pulse motor 18 through an amplifier 19. In this way, an injection device 16 is actuated to feed a magnetic fluid from a feed path 14.

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