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1. 发明专利

JPS58126500A STEEL PLATE IMPELLER OF PUMP 失效
公开(公告)号：JPS58126500A
公开(公告)日：1983-07-27
申请号：JP753582
申请日：1982-01-22
申请人： HITACHI LTD
发明人： SHINOZUKA HIDEKI , SATOU TETSUYA , MORIOKA GINYA
IPC分类号： F04D29/22
摘要： PURPOSE:To improve the precision of the outlet tip of vanes, to simplify the assembly and welding work, and to improve the pump performance by molding an outer peripheral guide and vanes in one body under press working and by fitting both side pltes in conformance with the outer peripheral guide. CONSTITUTION:An outer peripheral guide 3 constituting the outer diameter of an impeller from the outlet end of vanes 1 and vanes 1 are press molded in one body from a sheet of plate to form vanes with an outer peripheral guide, then outer peripheral guides 3 of vanes 1 are connected to each other to be combined in a predetermined jig, and the outer diameter side of vanes 1 is fixed correctly. Under this state, both side plates 4, 5 are coupled in conformance with the outer peripheral guide 3, and are welded to vanes 1 to form a steel plate impeller of a pump. According to this constitution, the precision for the centering of both side plates 4, 5 of the steel plate impeller and for the positioning of the tip of vanes 1 is improved, the assembly and welding work and can be simplified, and the pump performance can be improved.

2. 发明专利

JPS58155299A PUMP 失效
公开(公告)号：JPS58155299A
公开(公告)日：1983-09-14
申请号：JP3800082
申请日：1982-03-12
申请人： HITACHI LTD
发明人： SATOU TETSUYA , HASEGAWA KENGO , MORIOKA GINYA
IPC分类号： F04D29/44
摘要： PURPOSE:To improve efficiency of a pump by varying the shape of a casing such that it conforms to the vector of water flow from an outlet of an impeller outlet to eliminate collision loss of pressure while reducing leak loss. CONSTITUTION:Water passes through an impeller 4 inlet from an intake casing 3, is pumped up and enters a casing 2 from the impeller 4 outlet. The water flow coincides with the vector of water emerging from the impeller 4 to smooth the water flow in the casing. Thus, the water entering the casing 2 from the impeller 4 is rotated in the casing 2 to help the flow and reduce pressure rise between the impeller 4 and intake casing 3 or casing cover so that leak loss is reduced and efficiency of a pump is improved.

3. 发明专利

JPS6188014A Thrust bearing device 失效
标题翻译：推力轴承装置
公开(公告)号：JPS6188014A
公开(公告)日：1986-05-06
申请号：JP20810784
申请日：1984-10-05
申请人： Hitachi Ltd
发明人： ENDO HIROSHI , MORIOKA GINYA , INOMATA TETSUO , NAKAJIMA RYOICHI
IPC分类号： F04D15/00 , F04D29/041 , F04D29/046 , F16C17/06 , F16C27/08 , F04D29/04
CPC分类号： F16C27/08
摘要： PURPOSE:To prevent the rotation of a rotary shaft due to a change in the direction of a thrust load by providing an elastic body which is engaged with the receiving surface of a bearing seat which inclinedly movably holds a thrust pad and which presses said thrust pad to a thrust runner. CONSTITUTION:A thrust bearing device A consists of a thrust runner receiver 16 which is fixed to a rotary shaft 1, a thrust runner 17, a thrust stopper 18 which is slidable with respect to the thrust runner 17, a bearing seat 19 which is inclinedly engaged with an end bracket 5 and which inclinedly holds the thrust stopper 18, and an elastic body 20 which is engaged with the receiving face 19b of the bearing body 19 and which presses the thrust stopper 18 to the thrust runner 17. As a result, when the direction of thrust load is changed from the bearing seat 19 side to the thrust runner receiver 16 side, the sliding faces of the thrust runner 17 and the thrust stopper 18 can be kept in contact or in parallel due to the action of the elastic body 20.
摘要翻译：目的：为了防止旋转轴由于推力负载方向的变化而旋转，通过提供一个弹性体，该弹性体与轴承座的接收表面相接合，该轴承座倾斜地保持止推垫并将其推压到一个推力运动员。构成：推力轴承装置A包括固定在旋转轴1上的推力滑块接收器16，推力滑轮17，可相对于推力滑轮17滑动的推力止动器18，倾斜的轴承座19 与端部支架5啮合并倾斜地保持推力止动件18;以及弹性体20，该弹性体20与轴承体19的接收面19b接合，并且将止推器18推压到推力滑块17.结果，当推力载荷的方向从轴承座19侧改变为推力滑块接收器16侧时，推力滑块17和止推器18的滑动面可以由于弹性的作用而保持接触或平行身体20。

4. 发明专利

JPS5885398A SPIRAL PUMP 失效
公开(公告)号：JPS5885398A
公开(公告)日：1983-05-21
申请号：JP18226181
申请日：1981-11-16
申请人： HITACHI LTD
发明人： YANAGISAWA SEIJI , YOSHIDA MASAO , SHINOZUKA HIDEKI , ISHIGAKI TATSUYA , MORIOKA GINYA
IPC分类号： F04D29/42 , F04D29/44
摘要： PURPOSE:To enhance the performance of a pump by furnishing a deflection wall around a pump runner and thereby smoothing the outflow of the water from the outlet of pump runner. CONSTITUTION:The water discharged to a volute chamber 6 is changed with its direction while situated in this chamber 6, where part of this water will flow out toward the neighborhood of the inlet of volute chamber 6 along the internal walls of the chamber 6 with a flux of flow l. This flux of flow l is changed with its direction so as to flow along the surface of a deflection wall 11 in succession from the internal wall of the volute chamber 6 and, in the form of a flux of flow m, sent off toward the discharge outlet 5 of the pump runner 1. Accordingly the flux of flow L will never intersect with the flux of flow l on the way of return along the internal wall of the volute chamber 6 directly face to face, so that the pumping efficiency is enhanced.

5. 发明专利

JPS58187600A Impeller for centrifugal pump 失效
标题翻译：叶轮用于离心泵
公开(公告)号：JPS58187600A
公开(公告)日：1983-11-01
申请号：JP7037482
申请日：1982-04-28
申请人： Hitachi Ltd
发明人： ISHIGAKI TATSUYA , SATOU TETSUYA , MORIOKA GINYA , YOSHIDA MASAO , YANAGISAWA SEIJI , OKAMURA TOMOYOSHI , NAKAWA YASUMASA
IPC分类号： F04D29/22 , F04D29/24
CPC分类号： F04D29/2255
摘要： PURPOSE:To improve various characteristics in a low relative speed centrifugal pump by a method wherein the configuration of a vane is determined so that there is a part, in which the diameter of an inscribed circle is inreasing, from the outlet to the inlet of a flow path, when the circle being inscribed with neighboring vanes is described in the flow path. CONSTITUTION:The flow path 12, extending spirally from the inside of the impeller to the outside thereof, is constituted by each other of the vanes 10 provided on the impeller 4. The configuration of the flow path 12 is determined so that the width f of the flow path at the after rim 13 of the vane is small and the width f is being increased toward the inside of the impeller, in order to make a load distribution at the before rim 11 side of the vane larger and the same at the after rim 13 side of the vane smaller. The bending configuration of the vane is determined so as to increase the diameters of the inscribed circles B1-B3 in the order of B1 B2 B3 when the inscribed circles B1-B3 are described within the neighboring vanes 10, therefore, the load distribution at the before end rim 11 of the vane becomes larger.
摘要翻译：目的：通过一种方法来改进低相对速度离心泵中的各种特性，其中确定叶片的构造使得存在内接圆的直径减小的部分从出口到入口当流动路径中描述了内接有相邻叶片的圆时的流动路径。构成：从叶轮的内部螺旋地延伸到其外部的流路12由设置在叶轮4上的叶片10的彼此构成。流路12的构造被确定为使得流路12的宽度f 叶片的后边缘13的流路小，并且宽度f朝着叶轮的内侧增加，以便使得在叶片的前缘11侧的负载分布在后方更大而相同轮辋13侧的叶片较小。当在相邻的叶片10内描述内接圆B1-B3时，确定叶片的弯曲构造，以便在B1 B2 B3的顺序上增加内切圆B1-B3的直径，因此，在在叶片的端缘11之前变大。

6. 发明专利

JPS5889044A ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5889044A
公开(公告)日：1983-05-27
申请号：JP18538381
申请日：1981-11-20
申请人： HITACHI LTD
发明人： HASEGAWA KENGO , ASABUKI HIROSHI , YOSHIZAKI MASANORI , MORIOKA GINYA , SHINOZUKA HIDEKI , FUJITA HAJIME
IPC分类号： H02K5/20 , H02K9/06
摘要： PURPOSE:To obtain a cooling structure of an optimum shape by constructing the section of a blade in a circular-arc shape and disposing the inlet end of the blade to advance in the rotating direction of a rotor from the outlet end. CONSTITUTION:Cooling fans 11 disposed at both end surfaces of a rotor 6 are composed of many blades 11a formed in section in a circular-arc shape. Each blade 11a is inclined at a twisting angle alpha to the rotating direction F of the rotor 6, and the inlet end 11b of each blade 11a is advanced in the rotating direction F of the rotor 6 from the oulet end 11c. The blade 11a is directed toward the rotating direction F of the rotor at the circular surface of the inside, and the outlet angle theta of the blade 11a is set to approx. 90 deg.. Further, the diameter r1 of the oulet end 11c of the blade 11a is formed to be smaller than the outer diameter r0 of the rotor 6.

7. 发明专利

JPS54145851A Device for sealing shaft 失效
标题翻译：用于密封轴的装置
公开(公告)号：JPS54145851A
公开(公告)日：1979-11-14
申请号：JP5277778
申请日：1978-05-04
申请人： Hitachi Ltd
发明人： ISHIGAKI TATSUYA , YOSHIDA MASAO , WASHINO HIROSHI , MORIOKA GINYA , HASEGAWA KENGO
IPC分类号： F16J15/447 , F16J15/44 , F16J15/54 , H02K5/173
CPC分类号： F16C35/042 , F16C19/06 , F16C33/80 , F16C2380/26
摘要： PURPOSE: To provide a device for sealing a shaft of a rotary machine such as a pump or the like used at the place where water is scattered, which device incorporates lower power loss, an easy maintenance work and can prevent as much introduction of water as possible and dry the introduced water.
CONSTITUTION: In a waterproof type motor, for example, coupled directly with a pump, a shield bearing 5 is engaged with the inner periphery of the bearing seat 4 of a bearing box 3 provided at the inner periphery of the bracket 2 at load side with a small gap g
1 provided between the inner periphery of the bearing cover 6 for coating the outside of the bearing 5 and the shaft 7. Communicated grooves 8 are formed at the upper and lower portions of the inner periphery of the seat 4. On the other hand, a drain collar 10 of L shape in cross section is provided at the shaft 7 oppositely in space with the outer end surface of the box 3 with a small gap g
2 provided between the end of the collar 10 and box 3 and with a cover 11 provided at the box 3 for enclosing the gap g
2 . Rotary blades 12 are provided at the inside of the collar 10 for operating exhaust gas pressure to the gaps g
1 , g
2 .
COPYRIGHT: (C)1979,JPO&Japio
摘要翻译：目的：提供一种用于密封水分散的地方使用的诸如泵等的旋转机器的轴的装置，该装置具有较低的功率损耗，易于维护工作，并且可以防止像可能并干燥引入的水。构成：例如，在与泵直接连接的防水型电动机中，屏蔽轴承5与负载侧的支架2的内周侧的轴承座3的轴承座4的内周接合，在轴承盖6的内周侧设置有用于涂覆轴承5的外侧的轴线7和轴7之间的小间隙g1。在座椅4的内周的上部和下部形成有沟槽8.另一方面，在轴7相对于箱体3的外端面与轴承座10的外端面相反地设有L形的排水环10，该间隙设置在轴环10的端部与箱体3之间，并具有盖 11设置在盒3处，用于封闭间隙g2。旋转叶片12设置在轴环10的内部，用于将间隙g1，g2的排气压力运行。

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