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1. 发明专利

DE3909546A1 未知
公开(公告)号：DE3909546A1
公开(公告)日：1989-10-12
申请号：DE3909546
申请日：1989-03-22
申请人： HITACHI LTD
发明人： NAKANO MASAAKI , INOUE TOMOAKI , KAWAIKE KAZUHIKO , YAMAMOTO YUJI , ISHIKAWA MOTOYUKI
IPC分类号： F16C17/12 , F16C33/00 , F16C33/10 , F16C37/00 , F16C39/02 , F16N39/02
摘要： A bearing apparatus for a rotary machine having a horizontal rotating shaft comprises a bearing for supporting the horizontal rotating shaft, a bearing box for supporting the bearing therein, a lubricating oil tank disposed in a lower portion of the bearing box for storing lubricating oil, a lubricating supply device for picking up the lubricating oil in the lubricating oil tank and supplying the lubricating oil to the bearing, and oil guide device disposed beneath the bearing and allowing the lubricating oil discharged from the bearing to flow along a side wall of the bearing box to be stored in the lubricating oil tank.

2. 发明专利

JPS5328209A SOUND MUFFLER OF REVOLVING ELECTRICAL MACHINE 失效
公开(公告)号：JPS5328209A
公开(公告)日：1978-03-16
申请号：JP10263876
申请日：1976-08-30
申请人： HITACHI LTD
发明人： KURITA MORIKAZU , MIYATA TOSHIO , ISHIKAWA MOTOYUKI
IPC分类号： H02K9/26 , H02K5/20 , H02K5/24
摘要： PURPOSE:To devise an improvement of a sound decreasing effect by using more sound absorbing materials at an exhausting side setting eyes on a fact that there is a difference between noise levels of an intaking side and an exhausting side of a revolving electrical machine containing a cooling fan.

3. 发明专利

JPS5267710A VERTICAL ROTARY MACHINE WITH MUFFLER 失效
公开(公告)号：JPS5267710A
公开(公告)日：1977-06-04
申请号：JP14296075
申请日：1975-12-03
申请人： HITACHI LTD
发明人： KURITA MORIKAZU , MIYATA TOSHIO , SHIMIZU KOUSAKU , ISHIKAWA MOTOYUKI
IPC分类号： H02K9/26 , H02K5/24
摘要： PURPOSE:To improve the silencing effect of a muffler, by dividing it into suction an and discharge mufflers having axial ventilation flues fitted on opposite sides of a main body, a suction port of the suction muffler being located on the upper end and a discharge port of the discharge muffler downward on the lower end.

4. 发明专利

JPS6053534B2 失效
公开(公告)号：JPS6053534B2
公开(公告)日：1985-11-26
申请号：JP2047180
申请日：1980-02-22
申请人： HITACHI LTD
发明人： ISHIKAWA MOTOYUKI
IPC分类号： H02K1/30 , H02K1/26

5. 发明专利

JPH0250256A PREVENTIVE MAINTENANCE SYSTEM 失效
公开(公告)号：JPH0250256A
公开(公告)日：1990-02-20
申请号：JP19988788
申请日：1988-08-12
申请人： HITACHI LTD
发明人： ISHIKAWA MOTOYUKI , KOIDO MASAYUKI
IPC分类号： G21C17/00 , G05B23/02
摘要： PURPOSE:To speedily execute soundness evaluation and remaining life evaluation, to easily process a check item and the items of repair, exchange and reconstruction to be presented at the time of next periodical check and to execute preventive maintenance by executing data processing like a system based on outputs from a soundness evaluating means and a remaining life evaluating means. CONSTITUTION:A soundness evaluating means 4 to evaluate soundness from an operation history 2a in the past of parts, which constitute a preventive maintenance object equipment, and remaining life evaluating means 2b and 2b' to execute degradation diagnosis concerning the degrading part of this object equipment and to evaluate a remaining life are provided. Based on the outputs from this soundness evaluating means 4 and the remaining life evaluating means 2b and 2b', the check item and the items of the repair, exchange and reconstruction to be needed at the time of the next periodical check are decided as a preventive maintenance item 5 and outputted as a table 6. Thus, labor is reduced at a minimum and the preventive maintenance item and an executing time can be exactly obtained without fail.

6. 发明专利

JPS5986450A FRAME COVER FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5986450A
公开(公告)日：1984-05-18
申请号：JP19468582
申请日：1982-11-08
申请人： HITACHI LTD
发明人： ISHIKAWA MOTOYUKI , OOTSUKA IHEE
IPC分类号： H02K5/04
摘要： PURPOSE:To enable to simply regulate the size of a frame cover in coincidence with the size of a base frame when the cover is mounted on the base frame by laterally dividing the shaft of the cover to the right and left at the surface perpendicular to the shaft of the cover. CONSTITUTION:A stator coil and core integral article in which a stator coil 1 and a stator core 2 are integrated by a main plate 3, a core bar 4 and legs 5 is installed on a base frame 6 with clamping bolts. The frame 6 is mounted between base covers 7 and 8. A control cover 9 is provided between the covers 7 and 8.

7. 发明专利

JPS56117547A ROTOR OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS56117547A
公开(公告)日：1981-09-16
申请号：JP2047180
申请日：1980-02-22
申请人： HITACHI LTD
发明人： ISHIKAWA MOTOYUKI
IPC分类号： H02K1/30 , H02K1/26
摘要： PURPOSE:To absorb the uneven lamination thickness caused by the buckling phenomenon of the core in the vicinity of vanes by arranging the duct pieces which are radially provided on the entire periphery of both sides of the rotor core so that the duct pieces are not arranged on the side surface of the rotor in the extending direction and at the close proximity of each vane. CONSTITUTION:A plurality of duct pieces 5 are radially provided on the entire periphery of both side surfaces of the rotor core 3. The duct pieces 5 are not arranged on the side surfaces of the rotor core 3 in the extending direction and at the close proximity of each vane 3. Relief slots 14 are formed in the direction of the diameter between the side surface of the rotor core 3 and a rotor clamp 7. The compressing force of the rotor clamp 7 which compresses the rotor 3 from both sides toward the shaft is not directly applied to the part of the relief slots 14.

8. 发明专利

JPH023800A BEARING DEVICE FOR HORIZONTAL SHAFT ROTARY MACHINE 失效
公开(公告)号：JPH023800A
公开(公告)日：1990-01-09
申请号：JP7063589
申请日：1989-03-24
申请人： HITACHI LTD
发明人： NAKANO MASAAKI , INOUE TOMOAKI , KAWAIKE KAZUHIKO , YAMAMOTO YUJI , ISHIKAWA MOTOYUKI
IPC分类号： F16C17/12 , F16C33/00 , F16C33/10 , F16C37/00 , F16C39/02 , F16N39/02
摘要： PURPOSE:To improve the reliability of a bearing with oil efficiently cooled by circulating adjacent to an oil tank side wall the lubricating oil heated contributing to lubricating action. CONSTITUTION:An oil guide 12a is almost horizontally provided in a bottom part of a bearing 2 and a viscous pump 11, further an oil guide 12b is fixed to be set up in a vertical direction with a predetermined space adjacent to a side wall 4a of a bearing box 4. Further the oil guide 12b extends its bottom end part downward to be provided in a position approaching a bottom part of the bearing box 4. The side wall 4a fixes to its external surface a heat radiating fin 15 to be closely mounted through an adhesive agent or the like.

9. 发明专利

JPS5879456A ROTOR FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5879456A
公开(公告)日：1983-05-13
申请号：JP17570081
申请日：1981-11-04
申请人： HITACHI LTD
发明人： ISHIKAWA MOTOYUKI , OOTSUKA IHEE , SHIMIZU KOUSAKU , MIYATA TOSHIO
IPC分类号： H02K11/00 , H02K9/00 , H02K19/36
摘要： PURPOSE:To smoothly flow cooling air by mounting a discharging resistor on the wall surface of a shaft arm. CONSTITUTION:A rotary discharging resistor 1 is mounted on the shaft arm 8 of a shaft 2. Accordingly, the flow of cooling air is passed between a bearing bracket 9 and a guide 10, is partly flowed to the armature coil 6 side, the residue is passed from between the arms 8 through the rotor duct 12 of a rotor core 11 and the stator duct 14 of the core 12, thereby cooling the heating unit. In this manner, the flow of the cooling air at the inlet of the arm 8 becomes smooth, the air inflowing rate to the heating unit is increased, thereby increasing the cooling effect.

10. 发明专利

JPS53143903A AIR VENTILATOR FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS53143903A
公开(公告)日：1978-12-14
申请号：JP5852677
申请日：1977-05-20
申请人： HITACHI LTD
发明人： ISHIKAWA MOTOYUKI , MIYATA TOSHIO , KURITA MORIKAZU
IPC分类号： H02K9/26 , H02K5/20 , H02K9/04
摘要： PURPOSE:To reduce noise and improve an air ventilating effect and then miniaturize by forming the intake and exhaust air ventilating channels of an air ventilating box into a rectangular duct reducing bend and enabling incident and reflecting sound waves to interfere with each other at the corner section of the right-angled curve section in both air ventilating channels.

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