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1. 发明专利

JP2003201987A CANNED MOTOR PUMP 审中-公开
公开(公告)号：JP2003201987A
公开(公告)日：2003-07-18
申请号：JP2001400448
申请日：2001-12-28
申请人： EBARA CORP
发明人： MAKI SHIGERU , UCHIDA TATSUYA , YAMAMOTO MASAKAZU , IIJIMA KATSUJI , MAKINO TSUTOMU
IPC分类号： F04D13/06
摘要： PROBLEM TO BE SOLVED: To provide a canned motor pump that prevents accumulation of fine particles and eluted ions and stagnation of air around a rotor, and also prevents fragments of a bearing from entering a handling liquid discharged from the pump in case of bearing breakage. SOLUTION: This canned motor pump has a motor frame 1 storing a motor stator 4 in it and a outer cylinder 2 placed on the outside of the motor frame 1 and forming a circular space 50, between which and the motor frame 1 a handling liquid flows. One end of a main shaft 10 has a suction-side casing 40 which guides a handling liquid from a suction opening 40 to the circular space 50, and the other end of the main shaft 10 has a discharge-side casing 41 which guides a handling liquid from the circular space 50 to a discharging opening 41a, and forms a rotor chamber 51 separated from a discharging space 52 communicating with the discharging opening 41a, and a drain pipe 63, which discharges a handling liquid in the rotor chamber 51 separately from a handling liquid from the discharging space 52, is connected to the rotor chamber 51. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2001153060A ADJUSTING DEVICE FOR PERFORMANCE OF FLUID MACHINE 失效
公开(公告)号：JP2001153060A
公开(公告)日：2001-06-05
申请号：JP33576899
申请日：1999-11-26
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , MIYAKE YOSHIO , IIJIMA KATSUJI
IPC分类号： H02P1/30 , F04B49/06 , F04D15/00
摘要： PROBLEM TO BE SOLVED: To provide a frequency converter assembly suitable for saving energy of a self-priming pump and an adjusting device for performance of a fluid machine. SOLUTION: A frequency converter 21 starts automatically outputting as electric power is supplied. It outputs a first specified frequency during a specified time after the electric power starts being supplied, and automatically switches the output frequency to a second specified value.

3. 发明专利

JP2001069712A MOTOR FRAME, AND MOTOR AND MOTOR PUMP USING THAT MOTOR FRAME 失效
公开(公告)号：JP2001069712A
公开(公告)日：2001-03-16
申请号：JP24544899
申请日：1999-08-31
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , MIYAKE YOSHIO , IIJIMA KATSUJI
IPC分类号： F04D13/06 , H02K5/04
摘要： PROBLEM TO BE SOLVED: To provide a motor and a motor pump which use a motor frame for cooling a mounted inverter with motor effectively and stably. SOLUTION: A first cylindrical part 1 in which a motor stator is housed, a second cylindrical part 2 which is arranged outside the first part 1 and forms a space for a fluid to be used to flow between itself and the first part 1, and a frequency converter fitting seat 3 formed in the peripheral part of the second part 2 are made of the same metal material into an integrated body.

4. 发明专利

JP2000354397A CONTROLLER 失效
公开(公告)号：JP2000354397A
公开(公告)日：2000-12-19
申请号：JP16307899
申请日：1999-06-09
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , MIYAKE YOSHIO , KAWABATA JUNYA , UEI KEITA , IIJIMA KATSUJI
IPC分类号： F04B49/06 , H02M7/48 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a controller incorporating a backup circuit functioning to backup a commercial power supply easily upon failure of a frequency converter while facilitating switching between inverter operation and commercial power supply operation. SOLUTION: The controller 20 connected electrically between a power board and a motor for driving hydraulic machines, and the like, comprises a frequency converter 30 interlocked with power supply from the power board to start output automatically, a case 35 for containing the frequency converter 30, an input means 50 for supplying power to the frequency converter 30 from the outside of the case 35, an output means 51 for supplying power from the frequency converter 30 to the outside of the case 35, and a commercial power supply backup circuit 31 for disconnecting the input means 50 and the output means 51 from the frequency converter 30 when a failure signal is generated therefrom and electrically connecting the input means 50 directly with the output means 51 in the case.

5. 发明专利

JPH09209990A PUMP ASSEMBLY 失效
公开(公告)号：JPH09209990A
公开(公告)日：1997-08-12
申请号：JP3439396
申请日：1996-01-29
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU , MIYAKE YOSHIO , YAGI KAORU , UEI KEITA , MIYAZAKI YOSHIAKI , IIJIMA KATSUJI , KAWABATA JUNYA
IPC分类号： F04D29/44
摘要： PROBLEM TO BE SOLVED: To provide a pump assembly which can restrain a excessive flow rate by giving a flow rate adjust function to a pump itself. SOLUTION: A pump assembly is provided with a motor frame outer trunk 14 installed on the outer periphery part of the stator 13 of a canned motor 6, an outer cylinder 2 for forming a ring shape space 40 between the outer periphery part of the motor frame outer trunk 14 and it, and a pump part for introducing a handling liquid to the ring shape space 40. An impeller 8 and inner casings 12A, 12B for storing the impeller 8 are installed on the shaft end of the canned motor 6 and a discharge window 2b for introducing the handling liquid is installed on the outer cylinder 2 and a flow rate is adjusted by blocking the discharge window 2b in the inner casing 12A, 12B.

6. 发明专利

JPH08159072A LINER RING AND PUMP FURNISHED WITH LINER RING 失效
公开(公告)号：JPH08159072A
公开(公告)日：1996-06-18
申请号：JP32175094
申请日：1994-11-30
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , MIYAKE YOSHIO , ISEMOTO KOUJI , UEI KEITA , MIYAZAKI YOSHIAKI
IPC分类号： F04D29/08 , F04D1/08 , F04D29/16
摘要： PURPOSE: To provide a liner ring durable for practical use even when a sliding member made of a rubber material is deteriorated because of aged deterioration, etc., and easy in dimensional control. CONSTITUTION: A cutout is provided on an outside diameter side collar part of a reinforcing plate 56, a projection to engage with this cutout 56b is provided on a partition plate 46 and the reinforcing plate 56 and the partition plate 46 are locked in a liner ring 55 for a pump consisting of the reinforcing plate 56 provided with a hole on a central part of a metal plate material, and a sliding member 57 made of an elastic material molded on the inside diameter side of the reinforcing plate 56.

7. 发明专利

JPH06221293A ALL ROUND FLOW TYPE PUMP 失效
公开(公告)号：JPH06221293A
公开(公告)日：1994-08-09
申请号：JP2867693
申请日：1993-01-25
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU , MIYAKE YOSHIO , ISEMOTO KOUJI
IPC分类号： F04D7/04 , F04D13/06 , F04D29/70
摘要： PURPOSE:To provide an all round flow type pump in which a pump can be protected from abrasion and choking. CONSTITUTION:An all round flow type pump comprises a pump casing including a suction side casing 1, a discharge side casing 6 and a cylindrical outer cylinder 9 for connecting the suction side casing 1 and the discharge side casing 6 to each other, a motor provided in the pump casing, and an impeller 15 accommodated in at least either the suction side casing 1 or the discharge side casing 6. A cyclone separator main body 2 comprising a cylindrical part 2a, a conical part 2b extended downward from the cylindrical part 2a, a suction port 2c provided on the cylindrical part 2a and a discharge port 2d provided under the conical part 2b is integrated with the suction side casing 1, and an upstream rising pipe 3 extended downward from the suction port of the suction side casing 1 is provided in the cyclone separator main body 2.

8. 发明专利

JPH06213192A WHOLE PERIPHERAL FLOW TYPE DOUBLE SUCTION PUMP 失效
公开(公告)号：JPH06213192A
公开(公告)日：1994-08-02
申请号：JP2466093
申请日：1993-01-20
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU , MIYAKE YOSHIO , ISEMOTO KOUJI
IPC分类号： F04D13/06
摘要： PURPOSE:To easily mold impellers by providing the impellers having suction sections opened to the outside in the axial direction at both ends of a motor shaft, surrounding the impellers with pump outer casings having suction ports connected to a header pipe, connecting both pump outer casings with a pump barrel having a delivery port, and forming a passage between both pump outer casings and a motor frame. CONSTITUTION:Impellers 3, 4 having suction sections communicated with suction openings 15C, 16C provided on partition plates 15, 16 on the outside in the axial direction are provided at both shaft ends of the main shaft 2 of a motor 1. The impellers 3, 4 are stored in pump outer casings 5, 6. The pump outer casings 5, 6 are provided with suction ports 5a, 6a, and they are connected to a header pipe 10 having a suction port 11a. Both pump outer casings 5, 6 are connected with a pump barrel 7 to form a passage 40 between them and a motor frame 24. The pump barrel 7 is formed with a delivery port 41a communicated with the passage 40.

9. 发明专利

JPH05344673A 失效
公开(公告)号：JPH05344673A
公开(公告)日：1993-12-24
申请号：JP17168892
申请日：1992-06-05
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , KIMURA YOSHIICHI , YAMAMOTO MASAKAZU
IPC分类号： F16C17/10 , H02K5/128 , H02K5/16 , H02K5/167
摘要： PURPOSE:To absorb the divergence of the concentricity or squareness of constituent parts or dimensional error in engagement, etc. CONSTITUTION:In the bearing structure of a canned motor 22 which is equipped with a radial bearing for bearing a rotor rotatably and a thrust bearing, the motor frame 23 on antiload side of a motor 22 is provided, capably of mounting and removal, with a bearing housing 32, which holds a radial bearing, through an elastic substance 44, and the bearing housing 32 is provided with a thrust sliding member on fixation side, and the rotor is provided with a thrust sliding member on rotation side, which slides on the thrust sliding member on fixation side, and it is provided with a press plate 40 which is fixed to the motor frame 23 and also presses the bearing housing 32. Furthermore, the press plate 40 is provided with an engaging member 43 for stopping the turn of the bearing housing 32, engaging with the bearing housing 32.

10. 发明专利

JPH05302599A 失效
公开(公告)号：JPH05302599A
公开(公告)日：1993-11-16
申请号：JP12017992
申请日：1992-04-14
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU
IPC分类号： F04D13/06 , F04D29/42
摘要： PURPOSE:To provide an in line pump wherein a terminal box can be firmly supported to also prevent an outer cylinder from shaping complicated for mounting the terminal box and to obviate necessity for a mounting seat or the like. CONSTITUTION:An in line pump is provided with a pump casing, comprising a suction side casing 1, delivery side casing 5 and an outer cylinder 9 of connecting these suction and delivery side casings 1, 5, and a motor 22, provided in the pump casing, to arrange suction and delivery ports on the same line. A flange 43 for connecting the outer cylinder 9 to the suction side casing 1 or the delivery side casing 5 is provided. A terminal box 45 for taking out a lead wire L of the motor 22 to the outside of the pump casing is provided in this flange 43.

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