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61. 发明专利

JP2002148005A LIQUID-COOLED DISPLACEMENT GAGE IN HIGH-TEMPERATURE LIQUID 失效
公开(公告)号：JP2002148005A
公开(公告)日：2002-05-22
申请号：JP2000345089
申请日：2000-11-13
申请人： EBARA CORP
发明人： HONDA SHUICHIRO , JINNO HIDEKI
IPC分类号： G01B7/00 , G01B21/00 , G12B15/00
摘要： PROBLEM TO BE SOLVED: To provide a liquid-cooled displacement gage, in a high-temperature liquid, which can prevent a trouble such as a crack due to heat without exposing a sensor cap to a large temperature difference. SOLUTION: The displacement gage 13 is housed on the rear side of the sensor cap 11. It is faced with a rotating shaft 30 by sandwiching a cooling liquid 25 flowing on the surface side of the sensor cap 11. A cooling liquid 17 is supplied to a part in which the displacement gage 13 is housed at the sensor cap 11. While the displacement gage 13 is being cooled, the displacement of the rotating shaft 30 is detected by the displacement gage 13. A flow-velocity shielding member 20 made of a nonconductive material is installed between the rotating shaft 30 and the sensor cap 11, and the region of a stationary liquid 28 is formed between the member 20 and the sensor cap 11. Consequently, even when the cooling liquid 25 at a high temperature flows between the rotating shaft 30 and the sensor cap 11, a large temperature grade is generated in the part of the stationary liquid 28, and the temperature difference between the surface and the rear of the sensor cap 11 can be reduced.

62. 发明专利

JP2002021762A PUMP 失效
公开(公告)号：JP2002021762A
公开(公告)日：2002-01-23
申请号：JP2000209389
申请日：2000-07-11
申请人： EBARA CORP
发明人： JINNO HIDEKI , HONDA SHUICHIRO , YAMAKAWA YOSHIHIRO , NAGAOKA KAZUHIRO
IPC分类号： F04D29/046 , F04D13/00 , F04D29/04 , F04D29/05 , F04D29/056 , F04D29/12 , F16C17/04 , F16C17/14 , F16C35/02
摘要： PROBLEM TO BE SOLVED: To provide a pump having no necessity of particularly strengthening strength of a delivery casing even if a thrust bearing is arranged above the delivery casing. SOLUTION: In this pump, the delivery casing 30 and an impeller casing 20 are respectively connected to upper and lower parts of a pumping pipe 10 attached with a guide vane 45, and a shaft 11 for rotatably driving an impeller 21 arranged in the impeller casing 20 is pulled outside from an upper part of the delivery casing 30. A bearing casing 40 is fixed to the center of the guide vane 45 so as to surround the shaft 11. The bearing casing 40 is projected to the upper part from an opening 31 arranged in the delivery casing 30. The thrust bearing S of the shaft 11 is arranged in a part for projecting the bearing casing 40 from the upper part of the delivery casing 30. Thus, a thrust load of the thrust bearing S is supported by the highly rigid guide vane 45.

63. 发明专利

JP2002005097A VIBRATION PREVENTION SYSTEM FOR VERTICAL SHAFT TYPE PUMP 失效
公开(公告)号：JP2002005097A
公开(公告)日：2002-01-09
申请号：JP2000187379
申请日：2000-06-22
申请人： EBARA CORP
发明人： JINNO HIDEKI , HONDA SHUICHIRO , SATO KAZUYUKI
IPC分类号： F04D13/00 , F04D29/60 , F04D29/66
摘要： PROBLEM TO BE SOLVED: To provide a vibration prevention system for a vertical shaft type pump which adjusts its setting and works without transmitting unnecessary stress to a pump even if ground subsidence occurs. SOLUTION: This is a vibration prevention system for a vertical shaft type pump 10 which is hung inside the water tank 55 from the floor 51 where the driving unit of pump driving is installed. The vibration prevention system is equipped with a vibration prevention damper 35 between the lower portion of vertical shaft type pump 10 and the bottom of water tank 55 which absorbs vibration of vertical shaft type pump, and also a slide measure which connects the vibration prevention damper 35 with the bottom of water tank 55 by inserting the lower portion of vibration prevention damper 35 into the cylinder portion 37a installed on the supporting material 37 of vibration prevention damper.

64. 发明专利

JP2001214885A SUBMERGIBLE MOTOR PUMP 失效
公开(公告)号：JP2001214885A
公开(公告)日：2001-08-10
申请号：JP2000020682
申请日：2000-01-28
申请人： EBARA CORP
发明人： SANO HIRONORI , JINNO HIDEKI , KAMEI TAKESHI , KURAMASU MASAHIRO
IPC分类号： F04D29/08 , F04D13/08 , F04D13/12 , F04D29/54 , F04D29/60
摘要： PROBLEM TO BE SOLVED: To provide a submergible motor pump capable of realizing a high pump head by joining a plurality of submergible motor pumps in series even when an actual head is larger than a head of individual submergible motor pumps. SOLUTION: This submergible motor pump constituted so as to house a motor and a pump driven by the motor in a casing having a suction casing 5 and a delivery casing 6, is constituted so that the plurality of submergible motor pumps can be be joined in series by joining the delivery casing 6 and the suction casing 5 by setting a suction port diameter of the suction casing 5 and a delivery port diamter of the delivery casing 6 in the same diameter.

65. 发明专利

JP2001214883A SUBMERGIBLE MOTOR PUMP 失效
公开(公告)号：JP2001214883A
公开(公告)日：2001-08-10
申请号：JP2000020683
申请日：2000-01-28
申请人： EBARA CORP
发明人： SANO HIRONORI , JINNO HIDEKI , KAMEI TAKESHI , KURAMASU MASAHIRO
IPC分类号： F04D13/08 , F04D29/52 , F04D29/60
摘要： PROBLEM TO BE SOLVED: To provide a lightweight submergible motor pump easy in division and assembling. SOLUTION: In this submergible motor pump constituted so as to house a motor and a pump driven by the motor in a casing, the casing is divided into three pieces or more of a delivery casing 6 having a delivery port 6a, a motor casing 4 having a motor stator 12 and a pump casing 3 having a shaft seal device 11, and the delivery casing 6 and the pump casing 3 are joined by a tie rod 7 by locating the motor casing 4 between these.

66. 发明专利

JP2001115983A SUBMERGED PUMP MOUNTED ON DRAINAGE PUMP VEHICLE 失效
公开(公告)号：JP2001115983A
公开(公告)日：2001-04-27
申请号：JP29789199
申请日：1999-10-20
申请人： EBARA CORP
发明人： JINNO HIDEKI , HONDA SHUICHIRO , KURAMASU MASAHIRO
IPC分类号： F04D13/08 , F04D29/54 , F04D29/60
摘要： PROBLEM TO BE SOLVED: To provide a submerged pump mounted on a drainage pump vehicle that moderates difficulty of installing work and restriction of installing place, and allows drainage capacity to be improved. SOLUTION: This submerged pump 10 is horizontally suspended under water by a float 28 and used. The submerged pump 10 is structured so that the pumps are interconnected transversely and in parallel via connection pieces 14 and fastening tools 16 provided on the outer peripheral surface of a pump casing 12.

67. 发明专利

JP2000301188A UNDERWATER AERATOR 失效
公开(公告)号：JP2000301188A
公开(公告)日：2000-10-31
申请号：JP11704199
申请日：1999-04-23
申请人： EBARA CORP
发明人： KATO KEIJI , JINNO HIDEKI , GOTO TETSUO
IPC分类号： C02F3/20 , C02F3/22
摘要： PROBLEM TO BE SOLVED: To provide an underwater aerator arranged in water of an aeration tank and constituted so as to be made drivable without using a power supply equipment. SOLUTION: A compression air supply device 16 arranged outside an aeration tank 11 and the air turbine 19 arranged in the aeration tank 11 and using compressed air supplied from the compressed air supply device 16 through an air supply pipe 18 as a power source are provided and the rotation of the output shaft 21 of the air turbine 19 is transmitted to the drive shaft 14 of an underwater aerator 12 and the air used in the operation of the air turbine 19 and discharged from the air turbine 19 is introduced into the underwater aerator 12.

68. 发明专利

JP2000130392A IMPELLER FASTENING STRUCTURE 失效
公开(公告)号：JP2000130392A
公开(公告)日：2000-05-12
申请号：JP30373598
申请日：1998-10-26
申请人： EBARA CORP
发明人： SANO HIRONORI , JINNO HIDEKI , KAMEI TAKESHI
IPC分类号： F04D1/08 , F04D29/20 , F04D29/22 , F04D29/28
摘要： PROBLEM TO BE SOLVED: To surely fasten impellers and dispense with a key or reduce the use of the key by forming the serrations on the hub inner diameter parts of the impellers and an outer diameter part of a rotary shaft, and fastening the impellers to the rotary shaft by the engagement of these serrations. SOLUTION: A plurality of impellers 2A-2D are arranged in series on a rotary shaft 1 supported by the bearings at its both ends. The impellers are fastened in a state that each hub inner diameter part of the impeller 2 is engaged with or fitted to an outer diameter of the rotary shaft 1. The rotary shaft 1 is provided with the peripheral serrations S1, S2. A first stage impeller 2A and a second stage impeller 2B respectively counted from a left side, are fastened to the rotary shaft 1 in the serration S1. Similarly a third stage impeller 2C and a fourth stage impeller 2D counted from the left side, are fastened to the rotary shaft 1 in the serration S2. Among them, the first and third stage impellers 2A, 2C are respectively fastened by the serrations S1, S2 mounted on the back side thereof.

69. 发明专利

JP2000009176A VIBRATION ISOLATOR AND MACHINE DEVICE 失效
公开(公告)号：JP2000009176A
公开(公告)日：2000-01-11
申请号：JP19370398
申请日：1998-06-24
申请人： EBARA CORP
发明人： KANEKO ATSUSHI , JINNO HIDEKI
IPC分类号： F16F15/02
摘要： PROBLEM TO BE SOLVED: To provide a vibration isolator capable of easily adjusting an initial displacement, an elastic coefficient and a natural frequency value of a vibration system due to the load of the device of an elastic displacement part after a machine part is installed on a base and a machine device using the vibration isolator. SOLUTION: A vibration isolator having a base 3 supported on a floor surface 5 on which a machine part generating a vibration is mounted has two ends between which torsion bars 6, 7, 8, 9 and 10 are formed on a linear bar with torsional rigidity. The torsion bars are arrange so that one of the ends is connected to the base 3 and the other end is connected to the floor surface 5. Thus, the base 3 is supported relative to the floor surface 5 due to the torsional rigidity. Thus, the initial displacement and the aged deterioration of the base 3 and the natural frequency of an entire device can be readily adjusted. Further, a vibration damper can be attached with ease.

70. 发明专利

JPH07259845A DIVIDED TYPE BEARING DEVICE 失效
公开(公告)号：JPH07259845A
公开(公告)日：1995-10-09
申请号：JP7661994
申请日：1994-03-23
申请人： EBARA CORP
发明人： KIMURA YOSHIICHI , JINNO HIDEKI , MAEHARA TAKASHI
IPC分类号： F16C17/02 , F16C27/06 , F16C35/02
摘要： PURPOSE:To provide miniaturization so as to prevent displacing a divided surface by providing a back shell having a tapered part in close contact with a tapered part in one end part of each bearing piece in an axial direction, and providing a back shell cover having a tapered part in close contact with a tapered part from the top part in the other end part. CONSTITUTION:A bearing 1 comprises bearing pieces 1a, 1b vertically divided into two parts, to form a tapered surface 11 toward the axial center in axial direction one end parts and to form a tapered surface 12 toward both side edge parts from a circular arc-shaped top part in the axial direction other end parts, of the bearing pieces 1a, 1b. A 2-divided type back shell 2 has a tapered surface 21 in a part corresponding to axial direction one end parts of the bearing pieces 1a, 1b, and in the bearing pieces 1a, 1b, the tapered surface 11 comes into close contact with the tapered surface 21. In a back shell cover 3, a tapered surface 31 is formed, and the back shell cover 3, in a condition that the tapered surface 31 comes into close contact with the tapered surface 12, is fixed to the back shell 2. Accordingly, divided parts can be mounted without being displaced, and a total unit can be formed into compactness.

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