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91. 发明专利

JPH02108898A AXIAL BLOWER 失效
公开(公告)号：JPH02108898A
公开(公告)日：1990-04-20
申请号：JP25948988
申请日：1988-10-17
申请人： HITACHI LTD
发明人： TAKATSU YASUSHI , YAMAMOTO KENJI , SANGO NAOYOSHI
IPC分类号： F04D29/54
摘要： PURPOSE:To improve the suction performance and discharge wind so as to improve thrust by forming the cross sections of both end parts of the suction and discharge parts of a casing into semicircles. CONSTITUTION:In an axial blower, the cross sections of both ends of a cylindrical casing are formed into semicircles. As a result, the flow sucked in being swallowed up from the direction of the outer diameter becomes very smooth without breaking away on the suction side. Also on the discharge side, the flow in the direction of the outer diameter is suppressed to be small and the flow in the axial direction becomes large. With such improvement of flow, the improvement of efficiency and thrust is achieved. Accordingly, the reversible axial blower with the same performance in response to either the normal axial direction or the reverse direction as well as the capacity of displaying high efficiency and thrust.

92. 发明专利

JPH01182655A DRIVING MACHINE FOR ROLLING EQUIPMENT 失效
公开(公告)号：JPH01182655A
公开(公告)日：1989-07-20
申请号：JP348088
申请日：1988-01-11
申请人： HITACHI LTD
发明人： YAMAMOTO KENJI
IPC分类号： F16H1/20 , B21B35/12 , F16H37/06
摘要： PURPOSE:To make a driving machine into such a driving system that is compact in size and firm in structure by engaging one input gear directly with one piece of two output gears, while engaging it with the other one via one intermediate gear, and setting up these two output gears at top and bottom without engaging them together directly. CONSTITUTION:A driving machine 86 has four gears 67, 68, 73 and 76, among then, the input gear 76 is directly engaged with the outer gear 68, also engaged with another output gear 67 via one intermediate gear 73, and these output gears 67, 68 are set up at top and bottom, then they are set up without being engaged with each other. In this case, torque transmissibility among these gears 76, 68, 73 and 67 is 50% in any of engaging parts, thus there is no engaging part of the torque transmissibility of 100%. Consequently, the output gears 67, 68 are enough to have strength at the engaging part, insomuch that they are resistible to the 50% transmissibility, so that a pitch diameter of the gear is sharply reducible as compared with the case of the 100% torque transmissibility. In addition, a shaft center distance between the upper and lower output shafts 67, 68 is shortened as much as a portion for that, thus the driving machine 86 can be miniaturized.

93. 发明专利

JPS641207B2 失效
公开(公告)号：JPS641207B2
公开(公告)日：1989-01-10
申请号：JP6889177
申请日：1977-06-13
申请人： HITACHI LTD
发明人： YAMAMOTO KENJI
IPC分类号： B21B37/00 , B21B1/22 , G05D15/00 , G05D17/00

94. 发明专利

JPS57207906A HIGH-SPEED SAMPLING PROCESSING SYSTEM 失效
公开(公告)号：JPS57207906A
公开(公告)日：1982-12-20
申请号：JP9222881
申请日：1981-06-17
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MIYAHARA YOUJIROU , KAMIYAMA KENZOU , YAMAMOTO KENJI
IPC分类号： G05B9/02 , G05B21/02
摘要： PURPOSE:To execute prescribed samplings within target sampling periods when direct digital control operations cannot be executed within sampling periods because special processing are generated, by outputting operational results in the previous sampling period. CONSTITUTION:Target sampling time t1 is selected in such a way that a direct digital control DDC or a special processing can be executed within the sampling time t1. When an interruption 2 is generated and a special processing becomes necessary, an interruption existence deciding processing is executed and the presence or absence of the interruption is decided within time 9, and then a speci al processing is executed within time 11. The content of the preceding DDC processing is outputted as the content of the current processing immediately after the special processing is terminated without making any DDC processing irrespective of the length of the special processing. When an interruption processing which on special processing is generated, the processing proceeds from block A to block J through blocks G and I as usual, and after outputting the controlled output value of the proceeding processing as the operational result of the current processing at block K the processing is terminaled. Therefore, any special processing can be executed within one sampling period.

95. 发明专利

JPS57178505A DIRECT DIGITAL CONTROLLING METHOD 失效
公开(公告)号：JPS57178505A
公开(公告)日：1982-11-02
申请号：JP6238781
申请日：1981-04-27
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MIYAHARA YOUJIROU , YAMAMOTO KENJI , KAMIYAMA KENZOU
IPC分类号： G05B23/02
摘要： PURPOSE:To input command indications accurately at a high speed while shortening the time of the internal processing of a computer by accessing a current command value, stored in a specific area of a low-priority computer, at optional time, and then comparing a value, which never exists as a command value, with the read command value. CONSTITUTION:A direct digital control system consists of a high-priority computer 10 which controls the whole process and plural low-priority computers 20i which exercise direct digital control over processes on the basis of command values from the computer 10. The computer 10 discriminates by the overhead time 0 of a feedback value 5, and performs command value output C successively to feedback value input A and command value calculation B, thereby outputting its one word to the computers 20i as a command value for the following process. The computers 20i, on the other hand, performs current command value determination A'', feedback value input B'', controlled variable calculation C'', and controlled variable output D'' successively after overhead time 0''. Then, a value inputted during previous sampling is checked by a processing program A'' having a fault diagnosing function to decide on a current value.

96. 发明专利

JPS5736308A Sequence processing for interruption factor 失效
标题翻译：空值
公开(公告)号：JPS5736308A
公开(公告)日：1982-02-27
申请号：JP11163780
申请日：1980-08-15
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： YAMAMOTO KENJI , KAMYAMA KENZO , MYAHARA YOJIRO
IPC分类号： G05B19/02
CPC分类号： G05B19/02
摘要： PURPOSE:To shorten the time required for the detection and decision of interruption factors to detect every kind of factors at a minimum speed by executing the exclusive processing corresponding to a generated interruption at the generation of the expected interruption and continuing normal processing at no generation. CONSTITUTION:A lower computer 30 for direct digital control DDC execution receives a command value signal 31 from an upper computer 10 and conducts the ignition angle control of thyristor banks 40 by a load terminal voltage signal 33 and a load current signal 34 both of which are feedbacked from a load 70. An interruption factor checking master table 80 corresponding to operation modes composed of modes (1), (2)-(n) is prepared, control methods at on-line operation is devided into (n) kinds of operartion modes and interruption factors in each operation mode are set up in the table sequentially in the order of generation. If expected interruption is generated, the exclusive processing corresponding to a generated interruption is carried out.
摘要翻译：目的：缩短中断因素检测和决定所需的时间，以最小速度检测各种因素，通过在产生预期中断和继续进行正常处理的同时执行与生成的中断相对应的专用处理。构成：用于直接数字控制DDC执行的下位机30从上位机10接收指令值信号31，并通过负载端电压信号33和负载电流信号34进行晶闸管组40的点火角控制，二者均为准备从负载70反馈的控制方法。对与由模式（1），（2） - （n）组成的操作模式相对应的中断因素校验主表80被准备好，在线操作的控制方法分为（n）种操作每个操作模式中的模式和中断因素按照生成顺序依次设置。如果产生预期的中断，则执行与产生的中断相对应的排他处理。

97. 发明专利

JPS55105099A VENTILATION CONTROLLER FOR AUTOMOBIEL TUNNEL 失效
公开(公告)号：JPS55105099A
公开(公告)日：1980-08-12
申请号：JP1226879
申请日：1979-02-07
申请人： HITACHI LTD
发明人： ITOU TADASHI , YAMAMOTO KENJI
IPC分类号： E21F1/00 , F24F7/007 , F24F7/06

98. 发明专利

JPS5518571A CONTINUOUSLY HOT DIPPING APPARATUS 失效
公开(公告)号：JPS5518571A
公开(公告)日：1980-02-08
申请号：JP9144478
申请日：1978-07-28
申请人： HITACHI LTD , NISSHIN STEEL CO LTD
发明人： TABUSE KENJI , YAMAGUCHI TERUO , YAMAMOTO KENJI
IPC分类号： C23C2/20 , C23C2/18
摘要： PURPOSE:To easily utilize a high temp. pressurized fluid for wiping molten metal by regulating a low temp. high press. fluid compressor and low temp. high press. fluid valves when excess molten metal on the surfaces of a hot dipped steel strip is wiped to regulate the hot dipping thickness. CONSTITUTION:Steel strip 1 heated with burners 17 in heating furnace 18 is passed through molten metal bath 6 in the hot dipping vessel. The hot dipped strip is sprayed with a high temp. fluid spouted from nozzles 7, 7' to wipe excess molten metal, thus making the hot dipping thickness uniform. A low temp. fluid is compressed with compressor 22 and charged into ejector 23. On the other hand, a high temp. fluid of different temps. and the same press. is taken out of a plurality of places of furnace 18 through piping 26, 32, 38 and charged into ejector 23. At this time, by regulating valves 20, 25, 28, 29 a high temp. wiping fluid of the same temp. and press. is always fed to nozzles 7, 7' to regulate the amt. of excess molten metal to be wiped, and the hot dipping thickness is controlled to a predetermined thickness.

99. 发明专利

JPS5439348A TANDEM ROLLING FACILITY 失效
公开(公告)号：JPS5439348A
公开(公告)日：1979-03-26
申请号：JP10486777
申请日：1977-09-02
申请人： HITACHI LTD
发明人： YAMAMOTO KENJI , SAKANAKA TAKAO
IPC分类号： B21B31/16 , B21B1/22 , B21B1/24 , B21B1/28
摘要： PURPOSE:To provide a tandem rolling mill which ensures stable rolling condition without abnormality by offsetting the axis of the working rolls in such a direction that layer tension working on the rolling material develops.

100. 发明专利

JPS5417512A AXIAL BLOWER 失效
公开(公告)号：JPS5417512A
公开(公告)日：1979-02-08
申请号：JP8201577
申请日：1977-07-11
申请人： HITACHI LTD
发明人： YAMAMOTO KENJI
IPC分类号： F04D29/52
摘要： PURPOSE:To make maintenance easy, by dividing a cylindrical case into an upper half case and partial cases, by mounting an impeller and a motor to the upper half case and by connecting the upper half case and each partial case by means of hinges and a connecting device.

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