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71. 发明专利

JPH05332298A SHEET METAL PUMP CASING 失效
公开(公告)号：JPH05332298A
公开(公告)日：1993-12-14
申请号：JP16538592
申请日：1992-06-01
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , SAKAGAMI HIROMI , ISEMOTO KOUJI
IPC分类号： F04D29/42 , F04D29/62
摘要： PURPOSE:To provide a light-weight flange whereby the flange wall thickness of suction and delivery flanges can be reduced and also shorten suction and delivery nozzles of a pump. CONSTITUTION:In a sheet metal pump casing with a casing main body 1 and at least either of a suction flange 7 and a delivery flange 6, a suction nozzle 3 which is connected to a suction flange 7 and a delivery nozzle 5 which is connected to a delivery flange 6 are provided, and at least either of the suction nozzle 3 and delivery nozzle 5 has a larger outside diameter than that used for determining the nominal size of a pump. Also the suction flange 7 or delivery flange 6 which is mounted on the larger outside diameter part is formed in thick wall at the internal mounting part, and a bolt mounting part which is located on the outside of the mounting part is formed in thin wall.

72. 发明专利

JPH05332297A SHEET METAL PUMP CASING 失效
公开(公告)号：JPH05332297A
公开(公告)日：1993-12-14
申请号：JP16538492
申请日：1992-06-01
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU , SAKAGAMI HIROMI , ISEMOTO KOUJI
IPC分类号： F04D29/42 , F04D29/08
摘要： PURPOSE:To provide highly rigid suction and delivery nozzles, secure rigidity of flange units of suction and delivery flanges, select a material for the main components of the flanges different from that of a pump casing, and also cope with various standards. CONSTITUTION:In a sheet metal pump casing with a casing main body 1 and at least either of a suction flange 7 and a delivery flange 6, a suction nozzle 3 which is connected to a suction flange 7 and a delivery nozzle 5 which is connected to a delivery flange 6 are provided, and at least either of the suction nozzle 3 and delivery nozzle 5 is connected to the easing main body 1 and comprises a roughly cylindrical annular member which forms a sealing surface with a mating flange. Also the suction flange 7 or delivery flange 6 which is fixed to the annular member comprises a thick wall rigid member which forms a connection with the mating flange.

73. 发明专利

JPH05332281A INLINE PUMP 失效
公开(公告)号：JPH05332281A
公开(公告)日：1993-12-14
申请号：JP16538192
申请日：1992-06-01
申请人： EBARA CORP
发明人： FUJIMURA HIROYUKI , TAKAHASHI TSUTOMU , MORIYA MASAYOSHI , YAMAMOTO KAZUYOSHI , KOBAYASHI MAKOTO , AOKI MASANORI , YAMAMOTO MASAKAZU
IPC分类号： F04D13/06 , F04D13/14
摘要： PURPOSE:To provide a 2-stage pump with less fluid loss in which a high head can be obtained without increasing the outside diameter of a pump by guiding fluid smoothly from a 1st stage to a 2nd stage or from the 2nd stage to a delivery side flow passage. CONSTITUTION:In a pump which is provided with a pump casing comprising a suction side casing 1, a delivery side casing 5, and an outer cylinder 9 for connecting the suction side casing 1 to the delivery side casing 5 and a motor 22 provided in the pump casing, and in which a suction port and a delivery port are arranged in the same axis line, impellers 15 and 18 connected with the motor 22 are arranged on both sides of the motor 22 and the outside diameter of the 2nd stage impeller 18 is reduced more than that of the 1st stage impeller 15.

74. 发明专利

JPH05332280A INLINE PUMP 失效
公开(公告)号：JPH05332280A
公开(公告)日：1993-12-14
申请号：JP16538092
申请日：1992-06-01
申请人： EBARA CORP
发明人： FUJIMURA HIROYUKI , TAKAHASHI TSUTOMU , MORIYA MASAYOSHI , YAMAMOTO KAZUYOSHI , KOBAYASHI MAKOTO , AOKI MASANORI , YAMAMOTO MASAKAZU
IPC分类号： F04D13/06 , F04D13/14
摘要： PURPOSE:To provide a high head without increasing the outside diameter of a pump by arranging impellers on one or both sides of a motor at two-stages. CONSTITUTION:In an inline pump which is provided with a pump casing comprising a suction side casing 1, a delivery side easing 5, and an outer cylinder 9 for connecting the suction side casing 1 to the delivery side casing 5 and a motor 22 provided in the pump casing, and in which a suction port and a delivery port are arranged in the same axis line, impellers 15 and 18 connected with the motor are arranged on both sides of the motor 22.

75. 发明专利

JPH05302593A 失效
公开(公告)号：JPH05302593A
公开(公告)日：1993-11-16
申请号：JP12017092
申请日：1992-04-14
申请人： EBARA CORP
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU
IPC分类号： F04D29/42
摘要： PURPOSE:To provide a sheet metal-made pump casing wherein its liner part can be suppressed from deformation and also providing a proper plate thickness against pipe external force and internal pressure to eliminate necessity for increasing the plate thickness more than necessary and necessity for providing a reinforcement member for reinforcing the pump casing. CONSTITUTION:In a sheet metal-made pump casing manufactured by press molding, the pump casing comprises an external casing 1 having a suction nozzle 3 and an internal casing 10 provided in the external casing 1, in a condition isolated from the external casing 1, to house an impeller 14 in the inside of the casing 10. The internal casing 10 comprises the first internal casing 11 with a suction flow path formed and the second internal casing 12 of housing the impeller 14. A seal member 13 formed of elastic material is interposed in a clearance between a suction side end part of the first internal casing 11 and the external casing 1, and also interposing a seal member 20 formed of elastic material in a connection part between the first/second internal casings 11, 12.

76. 发明专利

JPS63190512A JOINT CONSTRUCTION OF POWER CABLE SUBMERGED IN HIGH TEMPERATURE WATER 失效
公开(公告)号：JPS63190512A
公开(公告)日：1988-08-08
申请号：JP2138187
申请日：1987-01-31
申请人： EBARA CORP
发明人： SATO GENICHI , YAMAMOTO MASAKAZU
IPC分类号： H02G15/18

77. 发明专利

JP2006200540A Pump arrangement 审中-公开
标题翻译：泵装置
公开(公告)号：JP2006200540A
公开(公告)日：2006-08-03
申请号：JP2006065038
申请日：2006-03-10
申请人： Ebara Corp , 株式会社荏原製作所
发明人： KOBAYASHI MAKOTO , YAMAMOTO MASAKAZU , MIYAKE YOSHIO , YAGI KAORU , UEI KEITA , MIYAZAKI YOSHIAKI , IIJIMA KATSUJI , KAWABATA JUNYA
IPC分类号： F04D13/06
摘要： PROBLEM TO BE SOLVED: To provide a pump arrangement which is miniaturization/saved space concerning the pump arrangement, especially, concerning the pump arrangement for use of architecture facility which is largely subject to constraint of installation space.
SOLUTION: The pump arrangement is provided with an outer cylinder 2 which forms annular space 40 between a motor frame external tube 14 provided on an outer peripheral portion of a motor stator 13 and the external peripheral surface of the motor frame external tube 14, a pump part which introduces a handling liquid in the annular space 40 and a check valve 110 provided inside.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种泵装置，其是关于泵装置的小型化/节省空间，特别是涉及用于建筑设施的泵装置，其主要受到安装空间的约束。解决方案：泵装置设置有外筒2，外筒2在设置在电动机定子13的外周部的电动机框架外管14和电动机框架外管14的外周面之间形成环状空间40 将处理液体引入到环状空间40内的泵部以及设置在内部的止回阀110。版权所有（C）2006，JPO＆NCIPI

78. 发明专利

JP2003166496A MULTI-STAGE MOTOR PUMP 审中-公开
公开(公告)号：JP2003166496A
公开(公告)日：2003-06-13
申请号：JP2001367202
申请日：2001-11-30
申请人： EBARA CORP
发明人： TAKADA TSUTOMU , YAMAMOTO MASAKAZU , IIJIMA KATSUJI , MAKINO TSUTOMU , SAKAI SHIGEKATSU
IPC分类号： F04D29/06 , F04D1/06 , F04D29/04 , F04D29/046
摘要： PROBLEM TO BE SOLVED: To provide a multi-stage motor pump which prevents its bearings from breaking by sufficiently lubricating the sliding surfaces of the bearings. SOLUTION: The multi-stage motor pump has a bearing part including a stationary side sliding bearing 32 and a rotation side sliding bearing 35 lubricated with a treating liquid, and is equipped with lead-in passages 41, 42, 51 to lead to the bearing part a part of the treating liquid having a higher pressure than the pressure of the bearing part and a jet flow passage 52 to jet the treating liquid introduced via the passages 41, 42, 51 toward the sliding surface 53 between the stationary side sliding bearing 32 and the rotation side sliding bearing 35. COPYRIGHT: (C)2003,JPO

79. 发明专利

JP2001241400A PUMP UNIT 失效
公开(公告)号：JP2001241400A
公开(公告)日：2001-09-07
申请号：JP2000054211
申请日：2000-02-29
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , MIYAKE YOSHIO , IIJIMA KATSUJI
IPC分类号： F04D1/08 , F04D13/06 , F04D29/44 , F04D29/62
摘要： PROBLEM TO BE SOLVED: To provide a pump unit capable of saving space by rationally coping with many piping assembly forms without impairing productivity. SOLUTION: This pump unit comprises a pump casing 24a-24c as a one side-opened cylindrical container having a bottom, and an impeller assembly 14 connected to an opening end of the pump casing 24a-24e, and for the pump casing 24a-24c, at least two sorts are provided, having a suction port 20 and a delivery port 22 at positions facing each other or perpendicular to each other in the cylindrical side part of the pump casing 24a-24c, or in a side surface and a bottom part, to be properly combined with the impeller assembly 14.

80. 发明专利

JP2000352399A FREQUENCY CONVERTER ASSEMBLY 失效
公开(公告)号：JP2000352399A
公开(公告)日：2000-12-19
申请号：JP16159699
申请日：1999-06-08
申请人： EBARA CORP
发明人： YAMAMOTO MASAKAZU , MIYAKE YOSHIO , KAWABATA JUNYA , UEI KEITA , IIJIMA KATSUJI
IPC分类号： F04D29/58
摘要： PROBLEM TO BE SOLVED: To save energy for fluid machine for high-temperature liquid by releasing heat from a frequency converter by natural convection that is generated at least either on an inner side or outer side of a vertically-mounted cylindrical cooling device. SOLUTION: A frequency converter assembly 12 comprises a frequency converter 10 and vertically-mounted cylindrical cooling device 11. The cooling device 11 is provided with a metal pipe 13 excellent in thermal conduction, inside which liquid 16 such as water or liquid paraffin is enclosed. An air chamber 17 for adsorbing expansion of the liquid 16 caused by temperature rise is provided between a liquid level of the liquid 16 and a lid body 15. The frequency converter 10 is mounted such that an open face of heat-releasing means 25 is adhered to a lower portion of an outer peripheral surface of the metal pipe 13. With this configuration, heat generated from the frequency converter 10 is conducted relatively fast from a surface of the metal pipe 13 to liquid 16, the liquid 16 generating natural convection. Accordingly, the heated liquid 16 with a high temperature flows upward, while the liquid 16 with a relatively low temperature flows downward.

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