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1. 发明专利

JPS6026819A PREVENTION EQUIPMENT OF OIL LEAKAGE FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS6026819A
公开(公告)日：1985-02-09
申请号：JP13272583
申请日：1983-07-22
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： NAKAMURA NORIMASA , YAMAZAKI TOSHIO
IPC分类号： F16C33/74 , H02K5/167 , H02K9/18
摘要： PURPOSE:To surely prevent oil and oil mist from leaking toward a rotary electric machine by providing a seal plate wrapping a rotary axis with a very small clearance and by connecting inside of a draft cover to an air chamber divided by the seal plate, by using an air pipe. CONSTITUTION:Lubricating oil 7 and oil mist in an oil tank 6 accommodating the bearing equipment 3 that is supporting the collar 2 integrated with a rotary axis 1 are going to leak into a rotary electric machine consisting of the stator 15, the rotor 12 and the stator iron core 13 attached to a rotary axis 1 and wrapped by the draft cover 10 through the inner air chamber 8 of the oil tank 6 and the air chamber 9. Meanwhile a seal plate 27 wrapping the rotary axis 1 through a very small clearance is provided, on the lower part of the cylindrical plate 5 of the bracket 4, and also an air pipe 28 that connects inside of the draft cover 10 to the air chamber 9 on the upper part of the seal plate 27 is provided between the lower part of the cylindrical plate 5 and the draft cover 10. Therefore, oil leakage is definitely prevented by setting the pressure higher in the inner air chamber 8 than in the outer air chamber 18.

2. 发明专利

JPS5411401A ROTOR OF ROTARY ELECTRIC MCHINE 失效
公开(公告)号：JPS5411401A
公开(公告)日：1979-01-27
申请号：JP7649077
申请日：1977-06-29
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： YAMAZAKI TOSHIO , ISHIDA ISAO , SUZUKI MASAKI
IPC分类号： H02K7/102 , H02K7/10
摘要： PURPOSE:To prevent loosening of a bolt or a nut used to clamp a brake ring; by welding a rotation-locking member to the brake ring wherein said rotation-locking member comprising a washer member having a bolt-hole and a rotation-locking pawl portion provided on one side surface of the washer.

3. 发明专利

JPH01216134A BRAKE AND JACK DEVICE FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPH01216134A
公开(公告)日：1989-08-30
申请号：JP3944088
申请日：1988-02-24
申请人： HITACHI LTD
发明人： YAMAZAKI TOSHIO
IPC分类号： F16D65/18 , H02K7/102
摘要： PURPOSE:To prevent a brake shoe from being damaged, by forming a brake air chamber from the stepped part of an upper piston, cylinder and the top edge part of a lower piston and allowing a chamber formed from the projection part of the upper piston and the bottom surface of the recessed part of the lower piston to communicate to the atmosphere. CONSTITUTION:When compressed air is supplied into a brake air chamber 14 formed by the stepped part of an upper piston 3a, recessed part top edge of a lower piston 3b, and a cylinder 4, the upper part piston 3a is raised by the compressed air. In this case, air flows into a chamber 15 formed by the projection part of the upper piston 3a and the bottom surface of the recessed part of the lower piston 3b through a hole 16 communicating to the atmosphere, by the communication between the hole of the upper piston 3a and the atmosphere, and the generation of vacuum state in the chamber 15 is prevented, and the upper piston 3a can be surely moved upwardly and downwardly. Therefore, the outside diameter of the projection of the upper piston 3a can be arbitrarily set so that the effective area necessary for brake can be obtained, and a brake shoe 1 and brake ring 8 can be used in favorable state.

4. 发明专利

JPS6353323A ROTATIONAL FREQUENCY DETECTING DEVICE FOR COMPRESSOR 失效
公开(公告)号：JPS6353323A
公开(公告)日：1988-03-07
申请号：JP19549686
申请日：1986-08-22
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： YAMAZAKI TOSHIO , SAYO KOSAKU , TEJIMA KUNIAKI , KURITA YASUHIRO
IPC分类号： F16D27/14
摘要： PURPOSE:To aim at improvement of the accuracy of detecting the rotational frequency of a compressor through increasing the detection voltage by reducing a very small clearance between the inner periphery surface of a rotating disc and the outer periphery surface of a hub so as to increase the by-pass magnetic flux in an auxiliary closed magnetic circuit. CONSTITUTION:When a compressor 1 is in rotary action, an exciting coil 5b is electrified, and a main closed magnetic circuit A is generated to cause an output disc 8c to be attracted to an input rotor 7. In addition, some of the magnetic flux in the exciting coil 5b bypass the main closed magnetic circuit A so as to form an auxiliary closed magnetic circuit B. In this condition, when a magnetic piece 12b in a magnetic flux changing means 12 passes through the neighborhood of the magnetic pole 11, a clearance between the magnetic pole 11 and the magnetic flux changing means 12 is reduced to cause the by-pass magnetic flux to be increased. Since the pulsative change in a flux output in the auxiliary closed magnetic circuit B is detected by a magnetic detecting coil 14, if the by-pass magnetic flux is increased, the induced pulse voltage generated in the magnetic detecting coil 14 is also increased.

5. 发明专利

JPS5947165B2 JPS5947165B2 - 失效
标题翻译：空值
公开(公告)号：JPS5947165B2
公开(公告)日：1984-11-17
申请号：JP7560980
申请日：1980-06-06
申请人： Hitachi Ltd
发明人： YAMAZAKI TOSHIO , ISHIDA ISAO
IPC分类号： F16C17/06 , F16C33/00 , F16C33/10 , F16C33/74
CPC分类号： F16C2300/34

6. 发明专利

JPS59151622A Guide bearing device of rotary machine 失效
标题翻译：旋转机械引导装置
公开(公告)号：JPS59151622A
公开(公告)日：1984-08-30
申请号：JP2463483
申请日：1983-02-18
申请人： Hitachi Ltd
发明人： YAMAZAKI TOSHIO , ISHIDA ISAO
IPC分类号： F03B11/06 , F16C37/00
CPC分类号： F16C37/00 , Y02E10/226
摘要： PURPOSE:To enable a guide bearing to be well cooled, by tilting an oil delivery hole with a position of its delivery side lower than that of its suction side and providing a step difference on the internal wall of a guide runner in an upper part of the suction side, in the case of a guide bearing device or the like of a vertical shaft water turbine generator. CONSTITUTION:An oil delivery hole 5a drilled in a guide runner 1a is tilted at an angle theta so that a delivery side M of the hole is positioned lower than its suction side N, and step difference 8 is provided on an internal wall of the guide runner in an upper part of the suction side N. In this way, oil in an annular oil chamber 3a is easily sucked into the oil delivery hole 5a, and its delivery oil flow (b) is directed toward the bottom part side of an oil tank 3 in almost the same direction as the direction of a circulative oil flow (a) in the bottom part of a guide bearing 2, never interfering with the circulative oil flow (a), thus the circulative oil flow (a) well circulates to perform good cooling of the guide bearing 2.
摘要翻译：目的：为了使引导轴承能够被良好的冷却，通过使排油孔的位置比其吸入侧的位置倾斜，并且在导向轴的上部的导向件的内壁上提供台阶差在垂直轴水轮发电机的导向轴承装置等的情况下的吸入侧。构成：在导向流道1a中钻出的输油孔5a以角度θ倾斜，使得孔的输出侧M位于比其吸入侧N低的位置，并且台阶差8设置在导向件的内壁上在吸入侧N的上部的流道。这样，环状油室3a中的油容易地被吸入到排油孔5a中，并且其输送油流（b）指向油的底部侧在与导向轴承2的底部的循环油流（a）的方向大致相同的方向上，不会与循环油流（a）干涉，所以循环油流（a）很好地循环到对导向轴承2进行良好的冷却。

7. 发明专利

JPS5865324A THRUST BEARING DEVICE 失效
公开(公告)号：JPS5865324A
公开(公告)日：1983-04-19
申请号：JP16103681
申请日：1981-10-12
申请人： HITACHI LTD
发明人： YAMAZAKI TOSHIO
IPC分类号： F16C37/00 , F16N7/28 , H02K7/08
摘要： PURPOSE:To easily perform mounting and removal of a bearing shoe, by extending supply and discharge oil pipes through external and internal walls of a bracket and forming a circulative pipe line through the supply and discharge oil pipes. CONSTITUTION:A circulative pipe line is formed by a supply oil pipe 8h, comprising a pipe 8a, extending through an external wall 6a of a bracket 6 and supplying cooled lubricating oil 9a into a bracket 6, and a branch pipe 8g, connected to an internal wall 6b of the bracket 6 and supplying the cooled lubricating oil 9a in the braket 6 to a sliding surface, and discharge oil pipe 7d (7a, 7c), extending through the internal and external walls 6b, 6a of the bracket 6 and discharging the lubricating oil 9a in an oil tank 9 having cooled the sliding surface. In this way, the lubricating oil 9a can be supplied and discharged by the supply and discharge oil pipes 8h, 7d, which are not engaged to a frame 5, then mounting and removal of a bearing shoe 3 can be performed without being disturbed by the circulative pipe line, thus disassembly and assembly work of the shoe can be facilitated. Further a trouble of oil leakage can be also eliminated.

8. 发明专利

JPS56166752A BRUSHLESS HORIZONTAL SHAFT SYNCHRONOUS MACHINE 失效
公开(公告)号：JPS56166752A
公开(公告)日：1981-12-22
申请号：JP7009180
申请日：1980-05-28
申请人： HITACHI LTD
发明人： YAMAZAKI TOSHIO , SAKAI KOUICHI
IPC分类号： H02K3/52 , H02K19/36
摘要： PURPOSE:To reduce the occurrence of vibration at the rotary section of a brushless horizontal shaft synchronous machine by moving a discharge resistor oppositely to a rectifier and the armature side of an exciter with respect to a field and disposing bearing between the rectifier and the armature to shorten the shaft of cantilever part. CONSTITUTION:The rotary field 6 of a synchronous motor body 1, the rotating armature 8 of an exciter 2, a rectifier 3 and a discharge resistor 4 are placed on a shaft 11 journaled with bearings 9, 10. The resistor 4 is disposed between the rectifier 3 and the bearing 9 oppositely to the rotating armature 8 with respect to the rotary field 6, and the bearing 10 is disposed between the rectifier 3 and the rotating armature 8. Thus, the shaft section of cantilever type projected from the bearing 10 may have a length capable of placing only the armature 8 of the exciter, thereby extremely shortening it and reducing the occurrence of the vibration at said section.

9. 发明专利

JPS5680587A BEARING OIL TANK OF ROTARY MACHINE 失效
公开(公告)号：JPS5680587A
公开(公告)日：1981-07-01
申请号：JP15566479
申请日：1979-12-03
申请人： HITACHI LTD
发明人： IMOBE YOSHISHIGE , YAMAZAKI TOSHIO , SUZUKI NOBORU
IPC分类号： F16N7/40
摘要： PURPOSE:To prevent generation of cabitation in a high pressure pump by supplying forcedly through the high pressure pump the oil contained in an oil tank installed separately from the bearing oil tank for a rotary machine used in a vertical rotary electric machine etc. CONSTITUTION:An end of an oil feeding pipe 14 in communication with a high pressure pump 13 shall be opened in an oil tank 11. As this oil tank 11 is located below a bearing oil tank 5 and in cmmunication with it through a small hole 12, the lubricating oil in the oil tank 11 is independent of the lubricating oil 6 in the bearing oil tank 5. Further, as the tank 11 is isolated below the rotary shaft 1 and a rotary part of runner 2 etc., it is free from affection of air bubbles produced by revolutions, and the high pressure pump 13 is supplied with oil including no air bubbles. Accordingly, the high pressure pump can be prevented from generation of cabitation.

10. 发明专利

JPS53120032A OIL MIST LEAK PREVENTION DEVICE 失效
公开(公告)号：JPS53120032A
公开(公告)日：1978-10-20
申请号：JP3449377
申请日：1977-03-30
申请人： HITACHI LTD
发明人： YAMAZAKI TOSHIO , TOSHIMA HISASHI
IPC分类号： F16C33/74
摘要： PURPOSE:To prevent oil mist leak throughly and to permit regeneration to use by providing an oil mist separator to separate oil mist, oil, and air.

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