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1. 发明专利

JPH109173A VACUUM PUMP 失效
公开(公告)号：JPH109173A
公开(公告)日：1998-01-13
申请号：JP16142096
申请日：1996-06-21
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： USAMI TOSHIKAZU , HORIOKA KAZUO , NAKANO YUJI
IPC分类号： F04C25/02 , F04B39/00 , F04C27/02 , H02K5/10 , H02K7/14
摘要： PROBLEM TO BE SOLVED: To improve the reliability of a vacuum pump by providing an inundation-prevention sheet at the end of a through hole formed through a casing to prevent the penetration of leakage oil from oil seals thereinto and discharge the oil to the outside as well as to prevent the inundation from the outside thereinto. SOLUTION: In the space between oil seals 9a and 9b and an oil seal 9c, a through hole 5b is formed through a casing 5 for discharging leakage lubricating oil from the oil seals 9a and 9b to the outside. A sheet 10 with its smallest- diameter portion being larger than the bore of the through hole is provided at the end of the through hole 5b with an interval therebetween. Leakage lubricating oil from the oil seals 9a and 9b is sealed off by the oil seal 9 and is then discharged through the through hole 5b to the outside. The discharge of the leakage lubricating oil prevents the tearing of a belt for transmitting engine torque caused by the deposition thereon of leakage lubricating oil lead toward a pulley 8.

2. 发明专利

JP2005192345A Dynamo-electric machine 有权
标题翻译： DYNAMO-ELECTRIC MACHINE
公开(公告)号：JP2005192345A
公开(公告)日：2005-07-14
申请号：JP2003431800
申请日：2003-12-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： USAMI TOSHIKAZU , TAWARA KAZUO , MIRUMACHI MITSUAKI
IPC分类号： H02K29/08 , H02K9/06 , H02K11/00 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide a pole position detection device which costs lower than an existing pole position detection device, such as a resolver and an encoder, on a motor generator, without the need for changing the structure of a rundel type rotor or for increasing the size of the motor generator, by a large amount. SOLUTION: The pole position detection device of the rundel type rotor is constituted by providing a magnet resin 19, constituting a detected body on the outer periphery of resin for molding a slip ring 10, and a semiconductor device 20 for detecting the pole position, such as Hall element or Hall IC is provided at a corresponding position. Accordingly, the pole position detection device can be provided easily on the motor generator 120 at a low cost, by only adding the magnet resin constituting a body to be detected and the semiconductor device for detecting the pole position 20 at the position, without changing the structure and design dimension of the motor generator 120. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种在电动发电机上成本低于现有的极位置检测装置（诸如旋转变压器和编码器）的极位置检测装置，而不需要改变破损型结构转子或用于增大电动发电机的尺寸。解决方案：通过在用于模制滑环10的树脂的外周上设置构成检测体的磁体树脂19和用于检测极的半导体装置20来构成破损型转子的极位置检测装置诸如霍尔元件或霍尔IC的位置设置在相应的位置。因此，通过仅添加构成被检体的磁性树脂和在该位置检测极位置20的半导体装置，能够以低成本将电极发生器120容易地设置在电动发电机120上，电机发电机120的结构和设计尺寸。（C）2005年，JPO和NCIPI

3. 发明专利

JPH07119649A VACUUM PUMP 失效
公开(公告)号：JPH07119649A
公开(公告)日：1995-05-09
申请号：JP26688793
申请日：1993-10-26
申请人： HITACHI LTD
发明人： USAMI TOSHIKAZU , ODAJIMA MITSUO
IPC分类号： F04C15/00
摘要： PURPOSE:To securely lead the absorbed oil to an oil draining hole, and to prevent the flow-out of the oil to a pulley by absorbing the lubricating oil leaked through an oil seal with a felt packing with tongue, and hanging a tongue part of the felt packing with tongue to the oil draining hole provided in a casing. CONSTITUTION:A felt packing 14 with tongue is interposed between an oil seal 13 and a bearing 11, and a tongue part 16 of the felt packing 14 with tongue is hung into an oil draining hole 15 provided in a casing 5. The oil leaked through the oil seal 13 is thereby absorbed by the felt packing 14 with tongue, and the absorbed oil is led to the oil draining hole 15.

4. 发明专利

JPH0576183A SECOND GENERATOR FOR VEHICLE 失效
公开(公告)号：JPH0576183A
公开(公告)日：1993-03-26
申请号：JP23296791
申请日：1991-09-12
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KURIYAMA SHIGERU , HONDA YOSHIAKI , USAMI TOSHIKAZU , ISHIHARA KENJI , HIKITA SAKAE , INOUE NOBUO
IPC分类号： H02M3/28 , H02M7/48
摘要： PURPOSE:To use power effectively by accumulating generated power in a capacitor, and accumulating it greatly in the case that the current like a sine wave changes, and discharging it at peak. CONSTITUTION:The field coil 4 and the excitation control circuit 5 of a generator 3 are connected to the line from a low-voltage power source via a breaker 2. A full wave rectification circuit 7 is connected to the line from a stator coil 6, and a capacitor 8 is connected to the output terminal. And the capacitor 8 accumulates generated power, and a switching regulator 11 using a transformer 9 outputs the half waves of sine waves through a bridge circuit 16 constituted of a filter circuit 13 and a semiconductor switch. At this time, in case that the power changes as sine waves, it accumulates greatly at start-up, and discharges it at peak. Hereby, the power can effectively be used.

5. 发明专利

JP2007170857A Rotary electric machine and engine drive device using the same 审中-公开
标题翻译：旋转电机和发动机驱动装置使用它
公开(公告)号：JP2007170857A
公开(公告)日：2007-07-05
申请号：JP2005365269
申请日：2005-12-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAJIMA FUMIO , KANAZAWA HIROYUKI , USAMI TOSHIKAZU , INOUE SHIGEMICHI , TAKANO MASAMI
IPC分类号： G01D5/245 , H02K3/28 , H02K11/00 , H02K24/00
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine that uses a resolver usable at a high temperature environment as that a magnetic pole position detector, and has the magnetic pole position detector capable of being constituted at low cost, while the influence of a magnetic leakage flux is reduced, and to provide an engine drive device that uses the rotary electric machine. SOLUTION: The magnetic pole position of a rotator of a rotary electric machine 100, having winding of the axial direction is detected by the magnetic pole position detector 22. The magnetic pole position detector 22 has a constitution, where the rotator shape is varied in the circumferential direction so that the reluctance of detection is varied, depending on the position of the rotator of the rotary electric machine. One detection wiring is constituted by a plurality of wirings and is arranged so as to cancel the magnetic fluxes between the rotator and a stator caused by the axial winding. When the number of projecting magnetic poles is 10 in the detection wirings 224 and 225, if the winding direction of secondary winding wound on the first to fifth projecting magnetic poles is set positive, the winding direction of secondary winding, wound on sixth to tenth projecting magnetic poles, is set in the reverse direction. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种旋转电机，其使用可在高温环境下使用的旋转变压器作为磁极位置检测器，并且具有能够以低成本构成的磁极位置检测器，同时影响的漏磁通减少，并提供使用旋转电机的发动机驱动装置。解决方案：磁极位置检测器22检测具有轴向卷绕的旋转电机100的旋转体的磁极位置。磁极位置检测器22具有旋转体形状为在圆周方向上变化，使得根据旋转电机的旋转体的位置，检测的磁阻变化。一个检测布线由多个布线构成，并且布置成抵消由轴向卷绕引起的旋转体和定子之间的磁通量。在检测配线224,225中的突出磁极数为10个的情况下，如果卷绕在第1〜第5投影磁极上的次级绕组的卷取方向为正，则将第2〜磁极设置在相反的方向。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007068366A Rotary electric machine for vehicle 审中-公开
标题翻译：车用旋转电机
公开(公告)号：JP2007068366A
公开(公告)日：2007-03-15
申请号：JP2005254305
申请日：2005-09-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAJIMA SUSUMU , USAMI TOSHIKAZU , INOUE SHIGEMICHI , WATARI SHINJIRO
IPC分类号： H02K5/14 , H02K5/10 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To protect electrical contacts such as a brush, a slip ring part and a rotating position sensing device from foreign matters such as water, dusts or the like in an environment of practical use. SOLUTION: The fixing part 16 of the rotating position sensing device is held by a third bracket 18 (31), protective walls 15, 24 are provided to a bracket holder 14 so as to surround in double the contact portion of the slip rings 10, 11 and the brushes 8, 9 from the circumferential direction, and a packing is disposed between the protective wall 15 and the second and the third brackets 13, 18. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在实际使用的环境中，保护诸如刷子，滑环部分和旋转位置传感装置之类的电气接触件免受异物如水，灰尘等的影响。解决方案：旋转位置检测装置的固定部分16由第三支架18（31）保持，保护壁15,24设置在支架支架14上，以便将滑盖的两个接触部分包围环10,11和电刷8,9从圆周方向，并且衬垫设置在保护壁15和第二和第三托架13,18之间。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JPH10231790A VANE TYPE VACUUM PUMP 失效
公开(公告)号：JPH10231790A
公开(公告)日：1998-09-02
申请号：JP3359097
申请日：1997-02-18
申请人： HITACHI LTD
发明人： USAMI TOSHIKAZU , HORIOKA KAZUO , ODAJIMA MITSUO
IPC分类号： F04C18/344
摘要： PROBLEM TO BE SOLVED: To prevent hardness of installation caused by off centering of a rotor when a vane type vacuum pump is installed so as to improve installing workability by arranging a projection fit to a fitting hole of the rotor on a closing end surface of a casing while holding a clearance with a driving shaft. SOLUTION: A cam shaft driving shaft 1 is spline-fitted to a fitting hole 7d of a rotor 7 in order to transmit turning force of an engine to the rotor 7, air is sucked from an inlet port 6a by causing capacity change of a space partitioned by a casing 6, the rotor 7, and a vane 8 with rotation of the rotor 7, and vacuum force is applied on a master bag of an automobile and the like. The casing 6 is installed on an engine end surface 2 through a cover 3 by a bolt 10. At the time of its installation, a projection 11 fitted into a fitting hole 7d is integratedly arranged on the closing end surface of the casing 6 for spline- fitting the fitting hole 7d of the rotor 7 and the driving shaft 1 with good efficiency. It is thus possible to restrict the position of the rotor 7 so as to improve installing workability.

8. 发明专利

JPH05308751A 失效
公开(公告)号：JPH05308751A
公开(公告)日：1993-11-19
申请号：JP10951692
申请日：1992-04-28
申请人： HITACHI LTD
发明人： KURIYAMA SHIGERU , HONDA YOSHIAKI , USAMI TOSHIKAZU
IPC分类号： H02K5/20 , H02K9/06 , H02K16/00 , H02K19/22
摘要： PURPOSE:To contrive smallness in size and highness of output by improving a function of cooling a tandem rotor-type AC generator for a vehicle. CONSTITUTION:Magnetic pole rotors R1, R2 are arranged in series in the axial direction of a shaft 1, and cores 19, 21 with the first/second stator coils 20, 22 corresponding to these rotors are arranged in brackets 3, 4. Fan blades 25, 26 are arranged in back surfaces of pole cores 7, 13 of the rotors R1, R2, and a centrifugal fan 17 of concurrently serving as a spacer 18 arranged integrally rotatably with the shaft 1 between the rotors R1, R2. In the rotor R1, a ventilating hole 31, whose one end opening appears in the fan 17, is formed to pass through toward the axial direction. Ventilating windows 27, 28, 29, 30, 32 are arranged in end parts and the intermediate of the brackets 3, 4 so that ventilating passages A, B, C are formed by rotating the fan 17 and the fan blades 25, 26. A slip ring 18 is provided in the outside of the brackets 3, 4.

9. 发明专利

JPH0549187A DUAL POWER SUPPLY GENERATOR 失效
公开(公告)号：JPH0549187A
公开(公告)日：1993-02-26
申请号：JP19638391
申请日：1991-08-06
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KURIYAMA SHIGERU , NAOI KEIGO , HONDA YOSHIAKI , USAMI TOSHIKAZU , ISHIHARA KENJI , SATO MORIO
IPC分类号： H02J7/16
摘要： PURPOSE:To make it possible to charge two batteries without enlarging a generator by turning a semiconductor switch ON when a control circuit detects a high voltage side battery voltage higher than a predetermined level. CONSTITUTION:For example, a first battery 4 is set at 12V and a second battery 14 is set higher than 12V. A voltage regulator 6 regulates the voltage on a (+) feeder 3 to a constant level. When the second battery 14 is not charged sufficiently, current from a second generating coil 9 increases and the voltage on the (+) feeder 3 begins to drop. Consequently, current of a field coil 7 increases thus increasing the charging current of the second battery 14. When the second battery 14 is charged sufficiently, a semiconductor switch 15 is turned ON by a control circuit 16. Consequently, two batteries 4, 14 can be charged without enlarging a generator.

10. 发明专利

JP2000205159A VANE TYPE VACUUM PUMP 失效
公开(公告)号：JP2000205159A
公开(公告)日：2000-07-25
申请号：JP403099
申请日：1999-01-11
申请人： HITACHI LTD , SANWA SEIKI MFG CO LTD
发明人： USAMI TOSHIKAZU , HORIOKA KAZUO , ODAJIMA MITSUO , MURAISHI TORU , ENDO TADAO
IPC分类号： F04C25/02 , F04C18/344 , F04C28/28 , F04C29/00 , F04C29/02 , F04C29/10
摘要： PROBLEM TO BE SOLVED: To surely prevent the breakage of a vane by the reverse rotation of a vacuum pump, in a vane type vacuum pump suitably used for a vacuum booster for motor vehicle, by providing a pressure reducing means in a displacement chamber which is abnormally raised in pressure when the vacuum pump is reversely rotated. SOLUTION: When an engine is operated to rotate a rotor 3 through a rotating shaft 1, displacement chambers 11a-11c are changed in volume according to the rotation of the rotor 3, and the air sucked through an intake port 6 and lubricating oil are discharged through a discharge port 9. In this case, a pressure rising preventing groove 12 for storing or releasing the lubricating oil or air is formed on the casing 5 or plate 8 located in a space (chamber) 11a formed between the minimum clearance part between the inside surface of the casing 5 and the outside surface of the rotor 3 and the intake port 6 located in the position of about the angle of 360 deg./the number of vanes in the normal rotating direction on the basis of the minimum clearance part. According to this, pressure rising within the space 1a in the reverse rotation of the vacuum pump can be reduced to prevent the breakage of the vanes.

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