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21. 发明专利

JPH06270709A HYDRAULIC TYPE DRIVING DEVICE OF AUXILIARY DEVICE FOR VEHICLE 失效
公开(公告)号：JPH06270709A
公开(公告)日：1994-09-27
申请号：JP5678493
申请日：1993-03-17
申请人： HITACHI LTD
发明人： USAMI TOSHIKAZU , ODAJIMA MITSUO , HORIOKA KAZUO
IPC分类号： B60K25/04
摘要： PURPOSE:To keep the starting characteristics of vacuum degree constant and the level of the temperature rising due to the heat generation of a sliding section low regardless of engine speed by directly connecting a vacuum pump to a projected section comprising the rotary shaft of an auxiliary device for vehicles projected on the opposite side to the drive side of the auxiliary device for vehicles, connected to and driven by a hydraulic motor. CONSTITUTION:When the driving force generated by the rotation of an engine 1 is transmitted to a driving shaft 2, a hydraulic pump 3 is driven, hydraulic operating oil is sent from an oil tank 8 to an oil quantity controlling device 6 by the hydraulic pump 3 as shown by an arrow mark. Hydraulic operating oil of a fixed quantity is supplied to a hydraulic motor 4 according to the indication of this oil quantity controlling device 6, and excessive oil is made to return to the oil tank 8. The oil of a fixed quantity supplied to the hydraulic motor 4 drives the auxiliary device 10 for vehicles and a vacuum pump 12, connected to the drive shaft 9 of the hydraulic motor 4, at a fixed speed and returns to the oil tank 8.

22. 发明专利

JPH06105488A AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JPH06105488A
公开(公告)日：1994-04-15
申请号：JP19674392
申请日：1992-07-23
申请人： HITACHI LTD
发明人： MURAMOTO YASUSHI , HONDA YOSHIAKI , USAMI TOSHIKAZU , NAKAJIMA ISAO
IPC分类号： H02K1/16 , H02K3/493
摘要： PURPOSE:To reduce magnetic sound by decreasing pulsation of a magnetic flux of a source of magnetic vibration without reducing the output of an AC generator. CONSTITUTION:A stator core 4 has a stator back part 15 at an outer peripheral side and slots 16 and stator tees 17 at a bore side. A winding 18 of a stator coil is contained in each slot 16, and a wedge 19 of a sandwich structure of three layers is mounted in the opening of each slot 16. The layers of both sides of the wedge 19 of the three layers are formed of ferromagnetic material layers 21, and an intermediate layer is formed of a nonmagnetic material layer 20.

23. 发明专利

JPH05122997A TWO-POWER SOURCE GENERATION SET 失效
公开(公告)号：JPH05122997A
公开(公告)日：1993-05-18
申请号：JP27745391
申请日：1991-10-24
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KURIYAMA SHIGERU , HONDA YOSHIAKI , USAMI TOSHIKAZU , HIKITA SAKAE , KOTANI KAZUO
IPC分类号： H02K19/22 , H02K19/34 , H02P9/00 , H02P9/30
摘要： PURPOSE:To suitably regulate a generating output in response to load conditions of the circumference by providing field coils capable of wiring to switch in star-delta-connections in a high voltage generator. CONSTITUTION:A low-voltage battery 25 is charged by a first generator, and a high-voltage battery 29 is charged by a second generator. A generating output controller 34 counts the rotating speed of the generator, and judges whether the speed is a specified speed N1 or less or not. If it is the speed N1 or less, an armature coil changeover switch(CS) 35 is closed to connect in a star- connection to produce a generating output. On the other hand, if it is the speed N1 or more, the CS 25 is opened to connect in a delta-connection to produce a generating output. The generated output is detected by a current sensor 33, and divided into A-, B- and C-zones according to a pattern. In the case of the A zone, the wiring is switched to the star-connection, in the case of the B zone, it is switched to the delta-connection, and in the case of the C zone, it is maintained as before.

24. 发明专利

JPH0583906A GENERATOR FOR CAR 失效
公开(公告)号：JPH0583906A
公开(公告)日：1993-04-02
申请号：JP23593391
申请日：1991-09-17
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KURIYAMA SHIGERU , USAMI TOSHIKAZU , ISHIHARA KENJI , SEKI KUNIO , SUZUKI SUSUMU
IPC分类号： H02K16/00 , H02K19/34
摘要： PURPOSE:To arrange slip rings in the spaces of section, where the end faces of each stator coil are equalized, and to enable miniaturization by forming array of a rotary section to be a structure, in which a first magnetic pole and a section magnetic pole are used. CONSTITUTION:A pulley 2 is fixed to a shaft 1 by a screen section, and a rotor section is turned. A coil 5 is wound on a bobbin 3, and first magnetic poles, magnetic poles 7, 9, and a magnet piece 11 are formed. A stator core 14 with a stator coil 16 is fastened to a bracket 18 and a bracket 19. A coil 6 is wound on a bobbin 4, and second magnetic poles, magnetic poles 8, 10 and a magnetic piece 12 are formed. A stator core 15 with the stator coil 16 is press-fitted and fixed to the bracket 19. A slip ring 20 is fastened to the shaft 1 and a brush holder 21 to the bracket 19, and connected as shown in a normal generator. A high-tension power supply is connected in the current control of a field coil and a space, in which a rectifier diode is mounted, in semiconductor control circuit sections 24, 25.

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