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51. 发明专利

JPS59138707A Rankine engine 失效
标题翻译： RANKINE发动机
公开(公告)号：JPS59138707A
公开(公告)日：1984-08-09
申请号：JP1153683
申请日：1983-01-28
申请人： Hitachi Ltd
发明人： ISHII MASAHARU , FUJITA MASAHIKO , MIYAMOTO SEIGO
IPC分类号： F01K25/00 , F01K25/08 , F01K25/10
CPC分类号： F01K25/08 , Y02P80/154
摘要： PURPOSE:To provide smooth starting and interruption for a middle-size Rankine engine which serves for recovering waste heat in mediump-sized factories by detecting the difference between pressures measured at the inlet and the outlet of an expanding machine and controlling the load of a motor, a generator and so on according to the output of the detecting means. CONSTITUTION:When a motor 7 which drives a working liquid pump 3 is started by a switch 8, the working liquid such as Freon or so is sent to a steam generator 4 and evaporated therein, however, the pressure thereof increased at the start of a Rankine engine is not so high at the pressure detecting point 10 as to drive an expanding machine 1 for offering a turning torque. The difference between the pressures measured at the points 10 and 11 in front of and at the rear of the expanding machine 1 is detected by a detecting means 12. When the difference exceeds a specified value, a generating motor 5 is started via a switch 6, on account of which the expanding machine 1 may conquer the mechanical loss and transmit the torque thereof to the generating motor 5. At the time of the interruption of the Rankine engine, the working pump 3 is stopped and when the difference between the detected pressures is reduced below the specified value, the generating motor 5 is also stopped. The Rankine engine may be thus smoothly started and interrupted.
摘要翻译：目的：为中等规模的兰金发动机提供平稳启动和中断，用于通过检测在扩张机的入口和出口处测量的压力差与控制电机负载之间的中型工厂的废热回收，发电机等，根据检测装置的输出。构成：当通过开关8启动驱动工作液体泵3的电动机7时，诸如氟利昂等的工作液体被送到蒸汽发生器4并蒸发，然而，其压力在开始时增加兰克发动机在压力检测点10处不是如此高，以驱动扩展机1以提供转矩。通过检测装置12检测在扩展机1的前方和后方的点10和11处测得的压力差。当差值超过规定值时，通过开关6启动发电马达5 由于膨胀机1可以克服机械损失并将其转矩传递给发电马达5.在兰金发动机中断时，工作泵3停止，当检测压力之间的差值降低到规定值以下，发电马达5也停止。兰金发动机可能因此顺利启动和中断。

52. 发明专利

JPS5954872A Circulating quantity control device 失效
标题翻译：循环数量控制装置
公开(公告)号：JPS5954872A
公开(公告)日：1984-03-29
申请号：JP16387882
申请日：1982-09-22
申请人： Hitachi Ltd
发明人： FUJITA MASAHIKO , ISHII MASAHARU , MIYAMOTO SEIGO
IPC分类号： F16K31/06 , F22G5/00
CPC分类号： F22G5/00
摘要： PURPOSE:To keep the degree of superheat at the inlet side of an expander constant by providing a circulating quantity control valve on a bypass path communicating between the inlet side and outlet side of a pump and operating the control valve by means of an electric signal based on the deviation between the degree of superheat at the inlet side of the expander and the preset degree of superheat. CONSTITUTION:The inlet side and outlet side of a pump 7 are communicated to each other by a bypass path 8, a circulating quantity control valve 9 is provided on the bypass path 8, and the control valve 9 is operated by the deviation 15 between an electric signal from an inlet superheat degree calculator 13 of an expander 3 and an electric signal from a target superheat degree setter 14. Thereby, when the degree of superheat 13a of the inlet superheat degree calculator 13 is larger than the target superheat degree 14a, the deviation 15 becomes a negative valve and the orifice of the circulating quantity control valve 9 is left closed. On the contrary, when the inlet superheat degree 13a is smaller than the preset superheat degree 14a, the deviation 15 becomes a positive value and the orifice of the circulating quantity control valve 9 is opened. Accordingly, the degree of superheat at the inlet side of the expander is kept constant.
摘要翻译：目的：通过在泵的入口侧和出口侧之间连通的旁路路径上设置循环量控制阀，通过电信号操作控制阀，以保持膨胀机入口侧的过热度恒定关于膨胀机入口侧的过热度与预设的过热度之间的偏差。构成：泵7的入口侧和出口侧通过旁路路径8相互连通，在旁路路径8上设置有循环量控制阀9，控制阀9由偏差15在来自扩张器3的入口过热度计算器13的电信号和来自目标过热度设定器14的电信号。因此，当入口过热度计算器13的过热度13a大于目标过热度14a时，偏差15成为负极阀，循环量控制阀9的节流孔闭合。相反，当入口过热度13a小于预设过热度14a时，偏差15变为正值，并且循环量控制阀9的孔被打开。因此，膨胀机入口侧的过热度保持恒定。

53. 发明专利

JPS596392B2 JPS596392B2 - 失效
公开(公告)号：JPS596392B2
公开(公告)日：1984-02-10
申请号：JP9263178
申请日：1978-07-31
申请人： Hitachi Ltd
发明人： KANEKO HISAO , FUJITA MASAHIKO
IPC分类号： G01P3/46

54. 发明专利

JPS58196669A Counter mechanism of magnetic recording and reproducing device 失效
标题翻译：磁记录和再现设备的计数器机制
公开(公告)号：JPS58196669A
公开(公告)日：1983-11-16
申请号：JP7670882
申请日：1982-05-10
申请人： Hitachi Ltd
发明人： KANEKO HISAO , FUJITA MASAHIKO
IPC分类号： G11B23/42 , G11B27/10 , G11B27/13
CPC分类号： G11B27/13 , G11B2220/90
摘要： PURPOSE:To realize a counter mechanism which displays an accurate quantity of recording on a magnetic sheet, by turning the slit of a counter dial only when a head moves in the recording direction. CONSTITUTION:When a pack 4 is set, a counter pin 13 is pushed down if a projection 14 and a slit 2 are at different positions. Thus a head 8 moves toward an arrow 9, and the upper surface of the projection 14 slides the lower face of a counter dial 1. As a result, only the pin 13 rotates although a worm 18 rotates. When the projection 14 is turned up to the position of the slit 2, both the pin 13 and a clutch 16 are pushed upward. Then the dial 1 indicates the recording scale through the slit 2 in response to the shift of the head 8 toward the recording direction. When the head 8 comes back from the final direction position, the hook is released between the clutch 16 and the pin 13. Thus the dial 1 does not turn. In such a way, an accurate recording quantity is displayed.
摘要翻译：目的：为了实现在磁片上显示准确量的记录的计数器机构，只有当磁头在记录方向上移动时才转动计数器表盘的狭缝。构成：当包装4被设定时，如果突起14和狭缝2处于不同位置，则向下按压对销13。因此，头部8向箭头9移动，并且突起14的上表面滑动台面盘1的下表面。结果是，尽管蜗杆18旋转，但是只有销13旋转。当突起14向上转动到狭缝2的位置时，销13和离合器16都被向上推。然后，表盘1响应于头部8向记录方向的移动而指示通过狭缝2的记录刻度。当头部8从最终方向位置返回时，钩子在离合器16和销13之间被释放。因此拨盘1不转动。以这种方式，显示精确的记录量。

55. 发明专利

JPS58196658A Misrecording preventing device of electronic still camera 失效
标题翻译：电子摄像机的预防设备的错误
公开(公告)号：JPS58196658A
公开(公告)日：1983-11-16
申请号：JP7670682
申请日：1982-05-10
申请人： Hitachi Ltd
发明人： FUJITA MASAHIKO , KANEKO HISAO
IPC分类号： G11B20/02 , G11B19/02 , G11B19/04
CPC分类号： G11B19/04
摘要： PURPOSE:To prevent the double recording of a signal, by permitting the recording of signal only when no signal is recorded on a magnetic sheet. CONSTITUTION:A recording/reproducing changeover switch 1 is turned to the recording side to record a signal on a magnetic sheet 10. A signal corresponding to a recording mode is applied to a control circuit 3 from the switch 1 as well as to a terminal 22a of a logical circuit 22. The signal corresponding to recording and non-recording of the sheet 10 which is detected by a magnetic head 6 and passed through a discriminating circuit 11 is applied to the other terminal 22b of the circuit 22. The circuit 22 receives the signal from the switch 1 and the circuit 11, and feeds it to a shift mechanism 7 when the sheet 10 is set in a recording state and then moves the head 6 to make it opposite to an unrecorded track on the sheet 10. This eliminates the double recording, and this action is repeated to perform recording to all tracks.
摘要翻译：目的：为了防止信号的双重记录，只有当磁片上没有信号记录时才允许记录信号。构成：将记录/再现切换开关1转到记录侧以将信号记录在磁片10上。对应于记录模式的信号从开关1以及端子22a施加到控制电路3 对应于由磁头6检测并通过识别电路11的片材10的记录和不记录的信号被施加到电路22的另一个端子22b。电路22接收来自开关1和电路11的信号，并且当片材10被设置在记录状态时将其馈送到换档机构7，然后移动头部6使其与片材10上未记录的轨道相反。这消除了双重记录，并且重复该动作以对所有轨道执行记录。

56. 发明专利

JPS58169381A INSTALLING DEVICE OF DISK-LIKE SHEET 失效
公开(公告)号：JPS58169381A
公开(公告)日：1983-10-05
申请号：JP5125582
申请日：1982-03-31
申请人： HITACHI LTD
发明人： FUJITA MASAHIKO , KANEKO HISAO , KANOU KIYOSHI , TAKEDA KATSUNOBU
IPC分类号： G11B17/028 , G11B19/20 , G11B23/00
摘要： PURPOSE:To install a magnetic sheet with good reproducibility, by providing plural holes on a hub, providing plural driving pins fitted to the hub holes on a driving shaft, fitting both of them, and transferring rotational force of the driving shaft to the magnetic sheet. CONSTITUTION:When fitting a driving shaft 6 and a hub 3 of a disquette 1, a hole 10 of the hub 3 and a driving pin 12 of the driving shaft 6 are fitted at the almost same time. As for the hole 10 of the hub 3, a lot of holes are formed, and also an inserting port 10a part of the driving pin 12 expands like a taper against the cylindrical part of the hole 10, and is constituted so as to nearly contact with an adjacent opening part 10a on its arrayed circumference. In case when the position of the hole 10 and the pin 12 does not match the axial direction, the tip tapered part of the pin hits against the tapered part of the opening part 10a of the hole 10. Since both of press-contact are shaped like a taper, the contact face is inclined against the driving shaft 6. Accordingly, by force for installing the disquette 1 to the drivng shaft 6, the hub 3 and the pin 12 generate sliding, both of them rotate relatively, and the pin 12 is inserted into the hole 10. By this operation, the hub 3 and the driving shaft 6 are installed.

57. 发明专利

JPS58169326A MAGNETIC HEAD DEVICE 失效
公开(公告)号：JPS58169326A
公开(公告)日：1983-10-05
申请号：JP5125282
申请日：1982-03-31
申请人： HITACHI LTD
发明人： KANEKO HISAO , FUJITA MASAHIKO
IPC分类号： G11B5/02 , G11B5/48
摘要： PURPOSE:To record a field and a frame in a small-sized magnetic sheet by a simple magnetic head feed mechanism, by placing one magnetic head on the same normal as its moving direction, and placing the other magnetic head so that it is shifted by one recording track from a prescribed angle. CONSTITUTION:One magnetic head 3 is on a normal 14 of a small-sized magnetic sheet 2, and the other magnetic head 3' is placed so that it is shifted by one recording track from a prescribed angle which is as small as possible. The feed direction of the magnetic head is a direction as indicated with an arrow 13, which coincides with the normal 14. In case of recording a frame, the two heads 3, 3' are fed by two track portions each. In case of recording a field, only the magnetic head 3 is fed by one track portion each by the magnetic head feed mechanism. Accordingly, the azimuth angle becomes ''0'', therefore, even if a reproducing machine exclusively used for a field is used, no azimuth loss is generated, and good reproduction can be executed. In this way, it becomes possible to record a field and a frame in a small-sized magnetic sheet by a simple magnetic head feed mechanism.

58. 发明专利

JPS58136282A ROTATION CONTROL CIRCUIT FOR MOTOR 失效
公开(公告)号：JPS58136282A
公开(公告)日：1983-08-13
申请号：JP1743182
申请日：1982-02-08
申请人： HITACHI LTD
发明人： FUJITA MASAHIKO , YAMASHITA KIYOU , YAMADA HIDEO
IPC分类号： H02P29/00 , G11B19/28 , H02P29/20
摘要： PURPOSE:To enable the control adapted for both CAV recording type and a CLV recording type by providing a code separating circuit and a discriminator in a pickup signal processor, thereby controlling an angular speed detector. CONSTITUTION:A motor 7 which drives a disc used for an audio device or the like is controlled by a speed control loop having a drive circuit 6, an angular speed detector 8 and an adder 5, and a phase control loop having an integrating element 9, a pickup 12, a signal processor 13 and a phase compensator 4. A code separating circuit 14 is connected to the processor 13 to separate the recording code of the reproduced signal, applied to a discriminator 15, thereby switching by a switch circuit 22 an angular speed detector 21 to correspond to the recording types CAV OR CLV of the disc by applying it to the discriminator 15. Accordingly, the speed control loop can be used as the control system adapted for the recording types, thereby controlling the motor 7.

59. 发明专利

JPS58121165A TAPE DRIVING DEVICE 失效
公开(公告)号：JPS58121165A
公开(公告)日：1983-07-19
申请号：JP277182
申请日：1982-01-13
申请人： HITACHI LTD
发明人： FUJITA MASAHIKO , OKADA SHIGERU
IPC分类号： B65H18/10 , G11B15/30 , G11B15/32
摘要： PURPOSE:To prevent the generation of a play in a loaded reel in the driving shaft direction, by butting the end of a rotary shaft to a stator member with the continuous sucking force in the axial direction while the rotary shaft is turning. CONSTITUTION:A reel shaft driving mechanism contains a decelerating deice provided with a special motor 51 and gears 59 and 41 and a reel shaft part 35. The motor 51 contains a rotor part including a shaft 52 and a circular magnet 54 adhered to the shaft 52 and a stator part including a driving coil 55 set opposite to the magnet 54, a stator yoke 56 adhered with the coil 55 and a housing part 58 adhered with a bearing 57. The rotor part can turn freely to the stator part. At the same time, one side of the magnetic flux of the magnet 54 reaches a contiguous magnetic pole through the coil 55, the yoke 56 and the coil 55 again to close the magnetic path of the magnetic pole. While the magnetic flux of the other side passes through a rotor yoke 53 to close the magnetic path of the yoke 53. The sucking force acts on the area between the rotor part and the yoke 56, and therefore the rotor part is always attracted toward the yoke 56. Thus no play is produced between the rotor part and the yoke 56.

60. 发明专利

JPS58115643A TAPE END DETECTOR 失效
公开(公告)号：JPS58115643A
公开(公告)日：1983-07-09
申请号：JP21003181
申请日：1981-12-28
申请人： HITACHI LTD
发明人： FUJITA NAOYA , FUJITA MASAHIKO , OKADA SHIGERU , YAMASHITA MASAMI
IPC分类号： G11B15/06 , G11B15/093
摘要： PURPOSE:To detect the end of a magnetic tape securely in a short time by detecting and comparing the revolving speeds of a take-up and a feed reel. CONSTITUTION:The revolving speeds of the take-up and feed reels 10 and 11 are detected by the 1st and the 2nd detecting circuits 12 and 13 and then transduced into DC voltages by the 1st and the 2nd F/V circuits 14 and 15, respectively. In the former half of the magnetic tape, the revolving speed of the take-up reel 10 is greater and in the latter half, the revolving speed is less, so a comparing circuit 16 outputs signals differing in polarity in the former and latter halves, respectively, e.g. a signal with a level ''1'' in the latter half. Thus, the comparing circuit discriminates between the former half and latter half of the magnetic tape. For this purpose, the output terminal of the comparing circuit 16 and that of a counting circuit 9 are connected to an AND circuit 17. Consequently, only when a leader tape part at the end of the magnetic tape is detected, the AND circuit 17 outputs a tape end detection signal to detect the end of the magnetic tape.

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