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1. 发明专利

JP2007023992A Oil pump 审中-公开
标题翻译：油泵
公开(公告)号：JP2007023992A
公开(公告)日：2007-02-01
申请号：JP2005210986
申请日：2005-07-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UCHIDA YUKIO , MUTO TAKAO , HIRAMOTO MICHIYA
IPC分类号： F04C2/344
摘要： PROBLEM TO BE SOLVED: To provide an oil pump capable of preventing seizure between a rotor and a rear body by preventing an oil film shortage by partial sliding with an opposed end surface of the rear body by an inclination of the rotor caused by deflective deformation of a driving shaft.
SOLUTION: This oil pump has the driving shaft 8 rotatably stored in a pump body, a cam ring forming a plurality of pump rooms on the inner peripheral side together with the rotor 9 and a vane, suction-delivery ports arranged in the rear body 3 arranged on one side in the axial direction of the cam ring, a first fluid pressure chamber and a second fluid pressure chamber formed on the outer peripheral side of the cam ring. An oil passage 29 is arranged in the rear body, and the seizure in rotation with the rear body by an inclination of the rotor is prevented by introducing much pump oil to clearance by sucking the pump oil leaked to the microscopic clearance C between the opposed end surface 3a of the rear body and a rotor one side surface 9a in the low pressure suction passage 19 side via the oil passage.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种油泵，其能够通过由于后转体的相对端面部分地由于转子的倾斜而被部分滑动防止油膜短缺而导致转子和后体之间的卡塞驱动轴的偏转变形。解决方案：该油泵具有可旋转地存储在泵体内的驱动轴8，与转子9和叶片一起形成在内周侧的多个泵室的凸轮环，配置在在凸轮环的轴向一侧配置的后体3，形成在凸轮环的外周侧的第一流体压力室和第二流体压力室。油路29布置在后体中，并且通过将泄漏到微观间隙C的泵油吸引到相对的端部之间的泵油来引入大量的泵油，从而防止转子倾斜而与后体的旋转卡住后体的表面3a和经由油路的低压吸入通路19侧的转子一侧面9a。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007138876A Variable displacement vane pump 有权
标题翻译：可变位移帆泵
公开(公告)号：JP2007138876A
公开(公告)日：2007-06-07
申请号：JP2005336452
申请日：2005-11-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HOSHINA NORIKATSU , MUTO TAKAO , UCHIDA YUKIO , SOEDA ATSUSHI
IPC分类号： F04C2/344
摘要： PROBLEM TO BE SOLVED: To provide a variable displacement vane pump for restraining partial abrasion of an outer diameter side part of a suction port and a cam ring.
SOLUTION: This variable displacement vane pump has a first plate member and a second plate member arranged on both sides in the axial direction of the cam ring and inserting a driving shaft, the suction port opening in an area of expanding the volume of a plurality of pump rooms and a delivery port opening in an area of reducing the volume of the plurality of pump rooms arranged on at least one side among the first plate member or the second plate member, a first fluid pressure chamber and a second fluid pressure chamber formed on the outer peripheral side of the cam ring and controlling an eccentric quantity of this cam ring, a pressure control means for controlling pressure of the first fluid pressure chamber or the second fluid pressure chamber and a high pressure introducing groove being a first plate or a second plate, arranged outside in the radial direction of the suction port and introducing high pressure.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于限制吸入口和凸轮环的外径侧部分的部分磨损的可变排量叶片泵。解决方案：该可变排量叶片泵具有第一板构件和第二板构件，该第一板构件和第二板构件布置在凸轮环的轴向两侧并插入驱动轴，该吸入口在扩大容积多个泵室和在减少设置在第一板构件或第二板构件中的至少一侧上的多个泵室的容积的区域中的输送口，第一流体压力室和第二流体压力形成在凸轮环的外周侧并控制该凸轮环的偏心量的压力控制装置，用于控制第一流体压力室或第二流体压力室的压力的压力控制装置和作为第一板的高压导入槽或第二板，其布置在吸入口的径向外侧并引入高压。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2009074372A Variable displacement pump 有权
标题翻译：可变位移泵
公开(公告)号：JP2009074372A
公开(公告)日：2009-04-09
申请号：JP2007241702
申请日：2007-09-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SOEDA ATSUSHI , UCHIDA YUKIO
IPC分类号： F04C2/344 , F04C15/00
摘要： PROBLEM TO BE SOLVED: To provide a variable displacement pump reduced in pump pulsation level by minimizing the deflection amount of a drive shaft when the pump is under high pressure to suppress the excessive movement of the position of a cam ring.
SOLUTION: This variable displacement pump comprises the cam ring 6 swingably stored in a pump body 1 and composing, on the inner peripheral side, a plurality of pump chambers 18 in cooperation with a rotor 8 and vanes 17, the drive shaft 7 rotatably supported on bearing bushes 9, 12 through two front and rear journal shaft parts 7b, 7c, a suction port and a discharge port formed in a plate 12, and a first hydraulic pressure chamber 14 and a second hydraulic pressure chamber 15 formed by demarcating the spaces on the outer peripheral both sides of the cam ring. The length S between the both bearing bushes is set to approximately 42.1 mm, the outer diameter of the second journal shaft part 7c is set to approximately 13 mm, and the axial length L of a serration shaft part 7d is set within the range of 9-14 mm.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过使泵在高压下最小化驱动轴的偏转量来减小泵脉动水平的可变排量泵，以抑制凸轮环的位置的过度运动。解决方案：该可变排量泵包括可摆动地存储在泵体1中并且在内周侧上与转子8和叶片17协作的多个泵室18，驱动轴7 通过两个前后轴颈轴部7b，7c，形成在板12上的吸入口和排出口，以及通过划分形成的第一液压室14和第二液压室15可旋转地支撑在轴承衬套9,12上凸轮环外周两侧的空间。两轴承衬套之间的长度S设定为大约42.1mm，第二轴颈轴部7c的外径设定为大约13mm，并且锯齿轴部7d的轴向长度L被设定在9 -14毫米。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007023991A Oil pump 审中-公开
标题翻译：油泵
公开(公告)号：JP2007023991A
公开(公告)日：2007-02-01
申请号：JP2005210985
申请日：2005-07-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UCHIDA YUKIO , MUTO TAKAO
IPC分类号： F04C2/344
摘要： PROBLEM TO BE SOLVED: To provide an oil pump for always providing smooth rotation of a driving shaft by preventing biased loading between the driving shaft and a bush by deflective deformation.
SOLUTION: This oil pump has the driving shaft 8 rotatably stored in a pump body 1, a cam ring 7 forming a plurality of pump rooms 16 on the inner peripheral side together with a rotor 9 and a vane 14, a suction port 18 and a delivery port 20 arranged in a pressure plate 12 arranged on one side in the axial direction of the cam ring, a first fluid pressure chamber 10 and a second fluid pressure chamber 11 formed by defining a space on both sides of the outer peripheral side of the cam ring. While the driving shaft is journaled in one end part 8a to a housing in a driving shaft storage hole 3a of a rear body 3 via a bush 26, a tapered surface 26a such as gradually expanding a diameter toward the rotor from one edge side of the driving shaft is formed on an inner peripheral surface of the bush.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种油泵，其通过防止偏转变形来防止驱动轴和衬套之间的偏置负载，始终提供驱动轴的平滑旋转。解决方案：该油泵具有可旋转地存储在泵体1中的驱动轴8，与转子9和叶片14一起在内周侧形成多个泵室16的凸轮环7，吸入口 18和布置在沿着凸轮轴的轴向方向布置在一侧的压板12中的输送口20，通过在外周的两侧限定空间而形成的第一流体压力室10和第二流体压力室11 凸轮环的一侧。当驱动轴通过衬套26在一个端部8a中枢轴延伸到后体3的驱动轴存储孔3a中的壳体时，从锥形表面26a的一个边缘侧朝向转子逐渐扩大直径驱动轴形成在衬套的内周面上。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2009074450A Variable displacement pump 有权
标题翻译：可变位移泵
公开(公告)号：JP2009074450A
公开(公告)日：2009-04-09
申请号：JP2007244736
申请日：2007-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SOEDA ATSUSHI , UCHIDA YUKIO
IPC分类号： F04C2/344 , F04C14/22 , F04C15/06
CPC分类号： F04C2/3442 , F04C14/10 , F04C14/226 , F04C14/24 , F04C15/0049 , F04C2220/24 , F04C2250/10
摘要： PROBLEM TO BE SOLVED: To provide a variable displacement pump having a heating suppressing effect due to a reduction in pump torque while suppressing vibration and pressure variation on relieving.
SOLUTION: This variable displacement pump comprises a metering orifice 33 formed in a discharge passage 22 connected to a discharge port 19, a pressure control valve 24 for controlling the pressure introduced into a first hydraulic pressure chamber 13a, a damper orifice 34 formed in the passage which connects the discharge port and a high-pressure chamber 30, a pilot orifice 33 formed in the branch passage 32 which connects the metering orifice and an intermediate-pressure chamber 27, and a relief valve for discharging the pressure on the downstream side of the metering orifice into a reservoir tank T by opening when the pressure in the intermediate-pressure chamber is equal to or higher than a predetermined pressure. The diameter of the pilot orifice and the diameter of the damper orifice are selectively determined to the optimum numerical values within a predetermined range obtained by experiments.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种由于减少泵转矩而具有抑制加热效果的可变排量泵，同时抑制了缓解时的振动和压力变化。解决方案：该可变排量泵包括形成在连接到排出口19的排放通道22中的计量孔33，用于控制引入第一液压室13a的压力的压力控制阀24，形成的阻尼孔34 在连接排出口和高压室30的通道中，形成在连通计量孔和中压室27的分支通道32中的先导孔33和用于排出下游的压力的安全阀当中压室中的压力等于或高于预定压力时，打开计量孔的一侧进入储存罐T。引导孔的直径和阻尼孔的直径选择性地确定为在通过实验获得的预定范围内的最佳数值。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JPH06103856A GAS BLAST CIRCUIT BREAKER 失效
公开(公告)号：JPH06103856A
公开(公告)日：1994-04-15
申请号：JP24803492
申请日：1992-09-17
申请人： HITACHI LTD , CHUBU ELECTRIC POWER
发明人： TAKEDA YASUHIDE , FUKAYA MASAMI , KUGA KATSUYA , UCHIDA YUKIO , OGAWA AKISHIGE
IPC分类号： H01H33/16
摘要： PURPOSE:To suppress drop of the system voltage due to energizing rush current when a large capacity transformer is switched in, by specifying the resistance value of a resistor, and restricting the preceding switch-on time of a resistor contact. CONSTITUTION:A gas blast circuit breaker is equipped with a breaking part 18 having a pair of contact pieces 11, 12 connectible within a vessel filled with an insulative arc-extinguishing gas and a switch-on device consisting of a resistor couple 17 and a resistor contact 20 in connection with the contact pieces 11, 12. Therein the resistor 17 has a resistance value of 500OMEGA and controls the energizing rush current of a transformer. The preceding switch-on time of the resistor contact 20 to be put on precedingly to the contact pieces 11, 12 of the breaking part is made exceeding 12ms. This accomplishes prevention of a momentary voltage drop by suppressing the energizing rush current when large capacity transformer is switched in.

7. 发明专利

JPH0681191A NON-WATER ELECTROPLATING METHOD 失效
公开(公告)号：JPH0681191A
公开(公告)日：1994-03-22
申请号：JP25414592
申请日：1992-08-28
申请人： NISSHIN STEEL CO LTD , HITACHI LTD
发明人： TADANO MASAYOSHI , UCHIDA YUKIO , WATANABE EIJI , YAMAGUCHI TERUO , ITO MASAHIKO , TANAKA MIZUHO
IPC分类号： C25D3/66 , C25D7/06
摘要： PURPOSE:To provide the method which enables plating at a high current density at the time of continuously electroplating a metal on a metallic strip by using a plating liquid of a low-temp. fused salt. CONSTITUTION:A housing 1 which is halvely hermetically sealed in apertures 3, 4 for introducing and leading out the metallic strip 2 by sealing rolls 5 is internally maintained in an inert gas kept at the pressure higher by >=0.05mm with the water column pressure than the outside atm. pressure of the housing and at -10 deg.C lower than the dew point. While the metallic strip 2 from the aperture 3 for introducing is repetitively moved in a vertical direction by plural energizing rolls 8 arranged in the upper part within the housing 7 and plural sink rolls 9 arranged in the bottom, the metallic strip 2 is guided to the aperture for leading out. A plating liquid 12 which is kept at 80 to 150 deg.C by being passed through a heat exchanger 15 from an external liquid storage tank 13 is ejected from above between the metallic strip 2 moving with both of the energizing rolls 8 and the sink rolls 9 and anode plates 10 parted from and disposed along the metallic strip 2 from nozzles 11 and is electrolyzed while the metallic strip 2 and the anode plates 10 are held energized.

8. 发明专利

JPH0688290A CONTINUOUS NONAQUEOUS ELECTROPLATING DEVICE 失效
公开(公告)号：JPH0688290A
公开(公告)日：1994-03-29
申请号：JP24187992
申请日：1992-09-10
申请人： HITACHI LTD , NISSHIN STEEL CO LTD
发明人： TANAKA MIZUHO , YAMAGUCHI TERUO , ITO MASAHIKO , UCHIDA YUKIO , TADANO MASAYOSHI , WATANABE EIJI
IPC分类号： C25D5/04 , C25D7/06
摘要： PURPOSE:To constitute the continuous nonaqueous electroplating device in such a manner that its working rate can be improved, the generation of harmful fumes is suppressed to prevent the degradation in working environment, the size of the device is reduced and uniform plating is executed. CONSTITUTION:This continuous nonaqueous electroplating device is formed with a plating regions 10 by filling the nonaqueous electrolyte 3 between plating members 1 to serve as anodes and a continuously supplied member 2 to be plated serving as a cathode within a hermetic type housing 11 sealed with an inert gas and executes electroplating by passing current between both electrodes. The plating members 1 are moved in a direction intersecting at 90 deg. (more preferably between 60 deg. and 120 deg.) with the moving direction of the member 2 to be plated. Reinforcing plates 12 are provided in order to prevent the deflection of the plating members 1. Further, the spacings of the plating regions 10 may be adjusted by pressing the reinforcing plates 12 by hydraulic cylinders.

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