专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH04200879A POWER UNIT FOR ELECTRON BEAM WELDING 失效
公开(公告)号：JPH04200879A
公开(公告)日：1992-07-21
申请号：JP32894690
申请日：1990-11-30
申请人： HITACHI LTD , HITACHI ENG CO LTD , HITACHI ENG SERVICE
发明人： TAKAHASHI TSUYOSHI , NAMATAME TOSHIO , KUROISHI KAZUO
IPC分类号： B23K15/00 , B23K15/02
摘要： PURPOSE:To prevent damage of peripheral equipment for a high-tension circuit by holding and controlling an output value of a control system of the constant voltage while the high voltage being cut off and controlling the high voltage reimpressed on an electron gun after the cutoff is completed to a value before the cutoff. CONSTITUTION:When abnormal electric discharge is generated on the electron gun 4 and a high voltage part in the periphery thereof, the high voltage is cut off by the method to cut off a control signal to a control element of an electronic tube 3 or a semiconductor device, etc., where the high voltage is inputted in series to a high voltage power source 2 and the electron gun 4, namely, the output of the control system of the constant voltage. Since the output value of the control system of the constant voltage is held and controlled while the high voltage being cut off, the high voltage reimpressed on the electron gun 4 after the cutoff is completed is controlled to the value before the cutoff. Consequently, the generation of weld defects and the regeneration of abnormal electric discharge caused by overshooting can be prevented.

2. 发明专利

JPH06162835A COMPOSITE SUPERCONDUCTOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH06162835A
公开(公告)日：1994-06-10
申请号：JP31313192
申请日：1992-11-24
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： TAMAKI TAKASHI , ISHIMURA TETSURO , KUROISHI KAZUO , MOTOJIMA OSAMU , YAMAMOTO JUNYA
IPC分类号： H01B12/02 , H01B12/16 , H01B13/00
摘要： PURPOSE:To provide a composite superconductor whose sheathes, superconducting wire and stabilizer are stably integrated together with the sheathes having sufficient strength by fitting the end portions of the sheathes together that form the outermost periphery of the conductor, and welding this joint portion using an electron beam. CONSTITUTION:A superconducting wire 1 and a stabilizer 2 are enclosed in the groove of a first sheath 3a, which is a good heat conductor in the form of a gate, and then the groove of the first sheath 3a is blocked by a second sheath 3b, which is a good heat conductor. Next, the sheathes are thermally and electrically joined together using solder 4 and then the solder is removed from the portion of the second sheath 3b to be fitted with the end portion of the first sheath 3a, and the end portion of the gate-shaped first sheath 3a is caulked and bent so as to be fitted and coupled to the end portion of the second sheath 3 b, and finally the coupled portion is welded using an electron beam from a conductor surface.

3. 发明专利

JPH08273923A SUPERCONDUCTING MAGNET DEVICE FOR NMR ANALYZER AND ITS OPERATING METHOD 失效
公开(公告)号：JPH08273923A
公开(公告)日：1996-10-18
申请号：JP7285995
申请日：1995-03-30
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： AIHARA KATSUZO , TOMINAKA TOSHIJI , MAKI NAOKI , KUROISHI KAZUO , TAKIZAWA TERUHIRO
IPC分类号： G01R33/3875 , H01F6/00
摘要： PURPOSE: To generate a stable and high magnetic field which can realize an NMR analyzer by a method wherein, when an inner-layer coil and an outer-layer coil are operated, the magnetic homogeneity in a magnetic-field space part is set to a prescribed value and a shim coil is arranged and installed in such a way that also the magnetic homogeneity is set to a prescribed value when an inner coil system is removed. CONSTITUTION: An outer-layer coil system Oc is constituted of seven coils 11 to 17. Out of the coils 11 to 17, the coils 11, 12 which are situated at the inside are formed of an (Nb-Ti)3 Sn compound superconducting wire, and the other coils 13 to 17 are formed of an Nb-Ti alloy-based wire material so as to be wound. In addition, an inner-layer coil system Ic is formed by connecting five coils 21 to 25 in series, and the coils 21 to 25 are arranged coaxially with reference to the central axis. Then, a shim coil 31 is arranged in such a way that, when coils for the inner-layer and outer-layer coil systems Oc, Ic are operated, the magnetic uniformity in a magnetic-field space part satisfies a prescribed value and that, when the inner-layer coil system Ic is removed, also the magnetic uniformity satisfies a prescribed value, and a stable and high magnetic field is generated.

4. 发明专利

JPH0890255A PARTIAL VACUUM ELECTRON BEAM WELDING EQUIPMENT 失效
公开(公告)号：JPH0890255A
公开(公告)日：1996-04-09
申请号：JP21980694
申请日：1994-09-14
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： TAGUCHI TETSUO , TAMAKI TAKASHI , KUROISHI KAZUO
IPC分类号： B23K15/00 , B23K15/06 , H01S3/00 , H04N7/18
摘要： PURPOSE: To relatively miniaturize a welding equipment, to improve the working efficiency, and to secure the stable quality of a work where no defective welded parts are overlooked by arranging an appearance inspecting instrument between a winding device and a discharge port of a vacuum container, and detecting the ruggedness or the discoloration on the welded surface of the work after the welding. CONSTITUTION: An appearance inspecting instrument consisting of a TV camera 14 and a laser beam measuring instrument 16 is provided on the front side of a winding device, and in a work 1 after the welding, the ruggedness and discoloration of the welded surface of the work 1 after the welding can be detected by the TV camera 14, and the ruggedness of the welded surface of the work 1 can be detected by the laser beam measuring instrument. When the surface of the weld zone of the work 1 is measured by this laser beam measuring instrument 16, the dimensional change in the height of the surface of the weld zone can be measured, for example, by 1/100mm to discriminate the discoloration of the surface from the ruggedness which can not be discriminated only by the TV camera 14.

5. 发明专利

JPH06269956A PARTIAL VACUUM ELECTRON BEAM WELDING EQUIPMENT AND METHOD THEREOF 失效
公开(公告)号：JPH06269956A
公开(公告)日：1994-09-27
申请号：JP5833493
申请日：1993-03-18
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： SENBA SATOYUKI , KUROISHI KAZUO , ISHIMURA TETSURO
IPC分类号： B23K15/00 , B23K15/06
摘要： PURPOSE:To improve working efficiency of carrying-in and carrying-out of materials to be welded by setting multidimensionally the electron beam irradiation position of an electron gun provided on the vacuum vessel inside and providing differential exhaust chambers on a carrying-in port and a carrying-out port. CONSTITUTION:The materials 1 to be welded enter the vacuum vessel 2 inside through a vacuum seal part 7 and a differential exhaust chamber 3 via a line arranging device 8. In the vacuum vessel 2, the electron gun 10 irradiates a welding groove of the materials 1 to be welded with an electron beam and heat input required for partial melting of the welding groove part is carried out to perform welding. The electron gun 10 is subjected to positional control multidimensionally by an electron gun traveling device 9. The periphery of a weld zone is cooled by using a cooling plate 11 as nccessary on the materials 1 to be welded after welding. The materials 1 to be welded after welding enters the line arranging device 8 through the carrying-out side differential exhaust chamber 3 and the vacuum seal parts 7 and after the deformation thereof is corrected, these materials are wound around a drum by a winding device 6.

6. 发明专利

JP2000097040A ENGINE-DRIVEN POWER GENERATING SET 失效
公开(公告)号：JP2000097040A
公开(公告)日：2000-04-04
申请号：JP26278098
申请日：1998-09-17
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： TAKANO YASUSHI , WATABE MASANORI , KUROISHI KAZUO
IPC分类号： F01P5/06 , F02B63/04 , F02B77/13
摘要： PROBLEM TO BE SOLVED: To calm an engine-driven power generating set in structural terms and compatibly establish the enhancement of the cooling efficiency with suppression of noise while a stress laid on the layout of a radiator and/or fan. SOLUTION: An engine-driven power generating set is configured so that a generator 12, engine 11, radiator 15, and fan 16 are installed inside a body case 10 equipped with an inlet port 10a and an exhaust port 10b, wherein the fan 16 is located downstream of the radiator 15, and they are positioned in such a sequence along the passage for cooling wind as from upstream, the inlet port 10a, generator 12, radiator 15, engine 11, and exhaust port 10b. Also a counterflow preventing means is furnished for the cooling wind having passed the radiator 15, for example a bulkhead. This allows the enhancement of the cooling efficiency of the engine and generator and a decrease in the noise simultaneously, and noise reduction can be accomplished at a low cost through small size construction of a sound absorbing duct and cooling fan.

7. 发明专利

JPH11159340A NOISE LOWERING STRUCTURE FOR EMERGENCY DIESEL GENERATOR 失效
公开(公告)号：JPH11159340A
公开(公告)日：1999-06-15
申请号：JP32413697
申请日：1997-11-26
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： WATABE MASANORI , TAKANO YASUSHI , KUROISHI KAZUO
IPC分类号： F02B77/13 , H02K5/24
摘要： PROBLEM TO BE SOLVED: To lower the noise with the simple structure, to lower the cost while reducing the sound absorbing material attached variable in an intake duct for emergency diesel generator by providing at least specified number or more of guide valves in a duct. SOLUTION: An emergency diesel generator is formed of a main body 3 loaded with an engine 1 and a power generator 2, an intake duct 4, an exhaust duct 5 and an exhaust cover 6, and the generator 2 generates the power with the drive of the engine 1. A fan is rotated so as to intake the air through the intake duct 4, and after cooling the engine 1, the air is discharged from the exhaust cover 6 through the exhaust duct 5. In this case, the intake duct 4 and the exhaust duct 5 are provided with at least one or more guide valves 7. A diffused sound field is thereby formed in the ducts 4, 5 so as to prevent the generation of internal resonance, and while air flow is smoothened so as to lower the fluid noise. The guide valve 7 is formed into a curved shape, and width of the guide valve 7 is set at a ratio of length of an intake port 41 to that of a discharge port 42.

8. 发明专利

JP2001072204A REFUSE COLLECTING VEHICLE 失效
公开(公告)号：JP2001072204A
公开(公告)日：2001-03-21
申请号：JP24932099
申请日：1999-09-02
申请人： HITACHI ENG SERVICE
发明人： KUROISHI KAZUO , ODAGIRI TAKAHARU
IPC分类号： E01H3/02 , B65F7/00 , C02F1/46
摘要： PROBLEM TO BE SOLVED: To provide an environment preservation type refuse collecting vehicle capable of not only collecting and transporting refuse but also sterilizing, disinfecting and deodorizing the inside of a refuse housing part and refuse accumulation place. SOLUTION: This refuse collecting vehicle is provided with a soft water tank 2 for supplying soft water, an ozone water manufacturing device 21 manufacturing ozone water by treating supplied soft water by means of electrolytic method, an ozone water exterior supply pipeline 22 supplying manufactured ozone water to a given place around the vehicle, an ozone gas generating device 1 generating ozone gas, and with an ozone gas supplying pipeline 11 to a refuse housing part for supplying generated ozone gas to the inside of a refuse housing part 3.

9. 发明专利

JP2001072198A OZONE WATER DISTRIBUTING PLANT 失效
公开(公告)号：JP2001072198A
公开(公告)日：2001-03-21
申请号：JP25544399
申请日：1999-09-09
申请人： HITACHI ENG SERVICE
发明人： KUROISHI KAZUO , ODAGIRI TAKAHARU
IPC分类号： B67D99/00 , B67D5/00
摘要： PROBLEM TO BE SOLVED: To always supply ozone water with constant concn. to respective ozone water using places even when there is a plurality of ozone water using places and to inexpensively construct equipment. SOLUTION: An ozone water distributing plant is equipped with a soft water making apparatus 20 for treating tap water to make soft water, a soft water storage tank 21, pipings 22, 23 for supplying stored soft water, ozone water making apparatuses 10 individually arranged to ozone water using places and treating supplied soft water by an electrolytic method to make ozone water and ozone water supply pipings 11 containing cocks for supplying made ozone water.

10. 发明专利

JP2001002204A GARBAGE COLLECTOR 失效
公开(公告)号：JP2001002204A
公开(公告)日：2001-01-09
申请号：JP17428399
申请日：1999-06-21
申请人： HITACHI ENG SERVICE
发明人： KUROISHI KAZUO , ODAGIRI TAKAHARU
IPC分类号： B65F7/00
摘要： PROBLEM TO BE SOLVED: To easily and surely sterilize, disinfect and deodorize a garbage accomodating part of a collector and a garbage pit after the gathering of garbage to improve the preservation of the environment by introducing an ozone gas generated in an ozone gas generator and the water stored in a water reservoir tank to the garbage accomodating part. SOLUTION: An ozone gas reserving and supplying pipe 11 for supplying an ozone gas is connected from an ozone gas generator loaded on a garbage collector to a garbage accomodating part 3, and an ozone gas garbage accomodating part supply valve 12 is mounted on the way of the pipe 11. Similarly, an ozone gas reservoir tank supply pipe 13 is connected from the ozone gas generator 1 to a water reservoir tank 2, and an ozone gas reservoir tank supply valve 14 is mounted on the way of the pipe 13. Further an ozone water external supply pipe 21 is extended from the water reservoir tank 12 to the external, and an ozone water external supply valve 22 is mounted on the way of the pipe 21. Whereby the ozone gas and the ozone water are supplied to the garbage accomodating part 3 and the external garbage pit to sterilize, disinfect and deodorize the same.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式