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    • 1. 发明专利
    • Method and apparatus of hydroforming
    • 水力学方法与装置
    • JP2006218503A
    • 2006-08-24
    • JP2005033954
    • 2005-02-10
    • Nissan Motor Co Ltd日産自動車株式会社
    • KANAMORI KENJIMORITA TETSUJIYANAGIDA SADAO
    • B21D26/033B21D26/039
    • PROBLEM TO BE SOLVED: To provide a method and an apparatus of hydroforming, by which method and apparatus, when a curved member is manufactured by the hydroforming, the improvement of productivity and the reduction of a cost can be achieved, and also the occurrence of wrinkles on the curved portions can be prevented, and as a result, a product having no fear of reducing the strength at the curved portion, in other words, a member requiring a high strength, such as a structural member of a car body can be manufactured.
      SOLUTION: A recessed portion Wd is formed at a portion except the position corresponding to the curved portion of the product of a nearly straight cylindrical member W. Successively, the nearly straight cylindrical member W is placed between an upper die 11 and a lower die 12, and then is bent so as to correspond to formed cavities 11a, 12a at a stage for fastening the upper die 11 and the lower die 12. After the upper die 11 and the lower die 12 have been fastened as required, working fluid is supplied inside the cylindrical member W, and the cylindrical member W is formed so as to have a required shape by applying a hydraulic pressure to the cylindrical member W.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供液压成形的方法和装置,通过该方法和装置,当通过液压成形制造弯曲构件时,可以实现生产率的提高和成本的降低,并且还可以 可以防止弯曲部分发生褶皱,结果,不会降低弯曲部分强度的产品,换句话说,需要高强度的部件,例如汽车的结构部件 身体可以制造。 解决方案:凹部Wd形成在与几乎直的圆柱形构件W的产品的弯曲部分对应的位置以外的部分。接着,几乎直的圆柱形构件W被放置在上模11和 下模12,然后在用于紧固上模11和下模12的阶段处弯曲成对应于形成的空腔11a,12a。在根据需要紧固上模11和下模12之后,加工 在筒状构件W内部供给流体,通过向筒状构件W施加液压而使筒状构件W形成为要求的形状。(C)2006,JPO&NCIPI
    • 2. 发明专利
    • Branch structure of cooling water route of internal combustion engine
    • 内燃机冷却水路分支结构
    • JP2006037919A
    • 2006-02-09
    • JP2004222750
    • 2004-07-30
    • Nissan Motor Co Ltd日産自動車株式会社
    • MORITA TETSUJITORII NARIMITSUTADA TATSUYAKUDO MASAYA
    • F01P11/04F01P3/02
    • PROBLEM TO BE SOLVED: To improve the installation efficiency of piping or the like constituting a cooling system and to prevent water flowing sound in a heater. SOLUTION: First to fourth cooling water discharge parts 33 to 36 are connected to a body part 31 of a water outlet 3. An opening 34a of the second cooling water discharge part 34 is positioned on the lower side in the vertical direction of a vehicle with respect to an opening 33a of the first cooling water discharge part 33. Therefore, air (bubbles) is hard to flow into the second cooling water discharge part 34 for introducing cooling water into a heater 6 to prevent the generation of water flowing sound in the heater 6. Since the flow of cooling water is caused to intensively diverge from the water outlet 3, the connecting work of first to fourth cooling water introduction hoses 5, 7, 9, 11 to the first to fourth cooling water discharge parts 33 to 36 can be performed efficiently. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提高构成冷却系统的管道等的安装效率,并防止水在加热器中流动的声音。 解决方案:第一至第四冷却水排出部分33至36连接到出水口3的主体部分31.第二冷却水排放部分34的开口34a位于下游侧的垂直方向 相对于第一冷却水排出部33的开口33a的车辆。因此,空气(气泡)难以流入第二冷却水排出部34,用于将冷却水引入加热器6,以防止水的流动 由于冷却水的流动与出水口3密集地分离,所以将第一至第四冷却水引入软管5,7,9,11连接到第一至第四冷却水排出部分 33〜36可以有效地进行。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Cooling system for internal combustion engine
    • JP2004360509A
    • 2004-12-24
    • JP2003157662
    • 2003-06-03
    • Nissan Motor Co Ltd日産自動車株式会社
    • MORITA TETSUJI
    • F01P7/16F01P3/20
    • PROBLEM TO BE SOLVED: To accelerate the rise of heating performance while preventing needless work of an electric water pump 5.
      SOLUTION: A cooling system comprises: a radiator 3 connected with a water jacket of an internal combustion engine 1; the electric water pump 5 disposed to an outlet passage 4 of the radiator; a bypass passage 7 extending from an inlet passage 2 of the radiator to an intake side of the electric water pump 5; an electronic control type flow control valve 8 disposed to the outlet passage 4 of the radiator; and a heater core 9 for heating a vehicle compartment. The cooling system further comprises a water temperature sensor 14, an air temperature sensor 15 on a heater inlet side, and an air temperature sensor 16 on a heater outlet side. After the cold start and upon heater request, the pump 5 is stopped until a cooling water temperature exceeds an air temperature on the heater inlet side. When the cooling water temperature exceeds the air temperature on the heater inlet side, the pump 5 is operated at the maximum flow rate. When an air temperature on the heater outlet side approaches a target air temperature, a flow rate of the pump 5 is reduced depending on deviations to prevent overshoot.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 4. 发明专利
    • Cooling system for internal combustion engine
    • JP2004316472A
    • 2004-11-11
    • JP2003108602
    • 2003-04-14
    • Nissan Motor Co Ltd日産自動車株式会社
    • MORITA TETSUJI
    • F01P7/16
    • PROBLEM TO BE SOLVED: To suppress deviation in temperature of each part of an internal combustion engine 1, while promoting warm-up of the engine.
      SOLUTION: A cooling system comprises: a radiator 3 connected with a water jacket of the internal combustion engine 1 through a radiator inlet passage 2 and a radiator outlet passage 4; an electric water pump 5 disposed to the radiator outlet passage 4; a bypass passage 7 extending form the radiator inlet passage 2 to a suction side of the electric water pump 5; an electronic controlled flow control valve 8 disposed to the radiator outlet passage 4; and a water temperature sensor 14 detecting a cooling water temperature Tw at a cooling water outlet 1b. After cold start of the engine, when the cooling water temperature Tw is lower than a first set temperature Tw1 (for example, 80°C), the electric water pump 5 is stopped while keeping the electronic controlled flow control valve 8 fully opened, and when the cooling water temperature Tw is the first set temperature Tw1 or higher, the electric water pump 5 is driven, for example, only for T seconds. By intermittently operating the electric water pump for T seconds each, wasteful emission of heat and the temperature deviation are suppressed.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 5. 发明专利
    • Resistance seam welding method for different kind of metal and its welding structure
    • 金属不同种类的电阻焊接方法及其焊接结构
    • JP2006326613A
    • 2006-12-07
    • JP2005150563
    • 2005-05-24
    • Nissan Motor Co Ltd日産自動車株式会社
    • MIYAMOTO KENJINAKAGAWA NARIYUKIMORITA TETSUJI
    • B23K11/20B23K11/30B23K103/20
    • PROBLEM TO BE SOLVED: To provide a method of welding different kinds of metals by resistance seam welding, a method capable of removing an oxidized film in a welding boundary while suppressing formation of an inter-metallic compound in the welding process and capable of obtaining strong welding, and also to provide a welding structure of different kinds of meals by such resistance seam welding. SOLUTION: In resistance seam welding of, for example, a steel material and an aluminum alloy material, with the purpose of interposing zinc as the third material between these materials to be welded, a galvanized steel plate 1 is desirably used as the steel material. Also, as roller electrodes R1, R2 for energization and pressurization, electrodes having recesses d intermittently on the circumference are used, producing an eutectic fused metal 3 of Al and Zn in the welding boundary to perform welding. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种通过电阻缝焊焊接不同种类的金属的方法,能够在焊接边界中除去氧化膜,同时抑制焊接过程中的金属间化合物的形成并能够 获得强力焊接,并通过这种电阻缝焊提供不同种类的餐具的焊接结构。 < P>解决方案:在例如钢材和铝合金材料的电阻缝焊中,为了将锌作为第三材料插入到待焊接的材料之间,优选使用镀锌钢板1作为 钢材。 此外,作为用于通电和加压的辊电极R1,R2,在周边间歇地使用具有凹部d的电极,在焊接边界中产生Al和Zn的共晶熔融金属3以进行焊接。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Hydraulic forming apparatus and hydraulic forming method
    • 液压成型装置和液压成型方法
    • JP2006116595A
    • 2006-05-11
    • JP2004369072
    • 2004-12-21
    • Nissan Motor Co Ltd日産自動車株式会社
    • KANAMORI KENJISAKURAI HIROSHIMORITA TETSUJIYANAGIDA SADAO
    • B21D26/033B21D26/035B21D26/039B21D26/047B21D53/88
    • PROBLEM TO BE SOLVED: To provide a hydraulic forming apparatus and a hydraulic forming method which dispenses with applying bending to a tubular material before hydraulic forming of the material when a hydraulically formed curved-member is manufactured, thereby realizing improvement in productivity.
      SOLUTION: The hydraulic forming apparatus 1 forms the tubular material W into a prescribed shape while applying fluid pressure to the tubular material W by injecting working fluid in the inside of the tubular material W, and the hydraulic forming apparatus 1 is provided with: a lower die 2 having a lower die groove-shaped cavity 21 which is curved upward in the middle part and the cross section of which is recessed; and an upper die 4 having an upper die cavity 41 which forms a product-shaped cavity 3 together with the lower die groove-shaped cavity 21 of the lower die 2. The lower die 2 is provided with a tubular material holding part 22 for holding both end parts Wa of the tubular material W in a stage where the linear tubular material W is situated on the lower die groove-shaped cavity 21 of the lower die 2 and the upper die 4 and the lower die 2 are clamped.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种液压成形装置和液压成形方法,其在制造液压形成的弯曲构件时在材料的液压成形之前对管状材料施加弯曲,从而实现生产率的提高。 解决方案:液压成形设备1通过在管状材料W的内部喷射工作流体而将管状材料W形成为规定形状,同时向管状材料W施加流体压力,并且液压成形设备1设置有 :下模2,其具有在中间部分向上弯曲并且其横截面凹入的下模槽形空腔21; 以及具有上模腔41的上模4,上模腔41与下模2的下模凹槽形空腔21一起形成产品形状的空腔3.下模2设置有用于保持的管状材料保持部22 线性管状材料W位于下模2的下模槽形空腔21和上模4和下模2的阶段中的管状材料W的两端部Wa被夹紧。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Apparatus and method for hydraulic pressure formation
    • 液压压力形成装置及方法
    • JP2005186094A
    • 2005-07-14
    • JP2003429227
    • 2003-12-25
    • Nissan Motor Co Ltd日産自動車株式会社
    • MOTOJIMA FUMIHIKOSAKURAI HIROSHIKANAMORI KENJIMORITA TETSUJIYANAGIDA SADAO
    • B21D26/033B21D26/045B21D26/02
    • PROBLEM TO BE SOLVED: To provide a hydraulic pressure forming apparatus excellent in low cost and the productivity.
      SOLUTION: In the hydraulic pressure forming apparatus with which a tubular material 110 is applied by forming a sheet material as the tubular-state so that side edge parts 101A, 101B of the sheet material overlap, and joining the overlap parts from the outside along the length direction, this apparatus is provided with metallic molds 151, 161 disposing the tubular material 110 at the inside and for die-clamping the tubular material 110; a nozzle 170 inserted into the opening part at both end parts of the tubular material 110 and for giving the hydraulic pressure in the inner part of the tubular material 110; and a liquid leakage preventive means 180 disposed in the nozzle 170 and for preventing the liquid leakage through a gap 117 between the sheets at the overlap part in the edge part surfaces of the tubular material 110.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种成本低,生产率优异的液压成形装置。 解决方案:在通过形成作为管状状态的片状材料而施加管状材料110的液压成形装置中,使得片材的侧边缘部分101A,101B重叠,并将重叠部分从 该装置设置有金属模具151,161,其将管状材料110设置在内部并用于模具夹紧管状材料110; 在筒状材料110的两端插入开口部的喷嘴170,以及在管状材料110的内部产生液压的喷嘴; 以及设置在喷嘴170中的防漏液装置180,用于防止液体通过管状材料110的边缘部分表面中的重叠部分处的片材之间的间隙117泄漏。(C)2005年, JPO&NCIPI
    • 10. 发明专利
    • Different kind of metal joining method
    • 金属接合方法的不同种类
    • JP2006198679A
    • 2006-08-03
    • JP2005366238
    • 2005-12-20
    • Kojiro KobayashiNissan Motor Co Ltd紘二郎 小林日産自動車株式会社
    • KOBAYASHI KOJIROHIROSE AKIOMIYAMOTO KENJINAKAGAWA NARIYUKIKASUKAWA MINORUMORITA TETSUJI
    • B23K11/20B23K11/16B23K103/04B23K103/16B23K103/18B23K103/20
    • PROBLEM TO BE SOLVED: To a method for joining different metals, in which an oxide film is removed without applying much calorie even when the oxide film is deposited on a surface of either material when overlapping and joining two different metals, and as a result, generation of intermetallic compounds on a joint interface is suppressed to be small, thereby improving the joint strength. SOLUTION: When overlapping and joining a galvanized steel sheet 1 and an aluminum alloy 2 of the kind different from the galvanized steel sheet 1 with each other, eutectic melting is made to cause on an interface between the aluminum alloy 2 and a zinc layer 6 of the galvanized steel sheet 1 by the resistance spot welding, and newly generated faces of the galvanized steel sheet 1 and the aluminum alloy 2 are joined with each other while removing an oxide film without applying much calorie, and suppressing generation of intermetallic compounds on the joint interface. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:即使当重叠和接合两种不同金属时氧化膜沉积在任何一种材料的表面上时,即使在不施加大量热量的情况下除去氧化膜也不会产生氧化物膜的方法,以及 结果,在接合界面上产生金属间化合物被抑制得很小,从而提高接合强度。 解决方案:当将镀锌钢板1和不同于镀锌钢板1的铝合金2彼此重叠并接合时,使铝合金2和锌之间的界面上产生共晶熔融 通过电阻点焊将镀锌钢板1的层6,并且镀锌钢板1和铝合金2的新产生的面彼此接合,同时去除氧化膜而不施加大量的热量,并且抑制金属间化合物的产生 在接口上。 版权所有(C)2006,JPO&NCIPI