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3. 发明专利

JPS59127302A Method of controlling search light 失效
标题翻译：控制搜索光的方法
公开(公告)号：JPS59127302A
公开(公告)日：1984-07-23
申请号：JP321983
申请日：1983-01-10
申请人： Hitachi Shipbuilding Eng Co
发明人： ARAKAWA KOUICHI , NODOKO TANEYASU
IPC分类号： G05B7/02 , B63B45/02 , F21S2/00 , F21V21/14 , G05B1/01 , G05D3/00 , G05D3/12

6. 发明专利

JPS58174090A ELECTRIC PROPULSION DEVICE 失效
公开(公告)号：JPS58174090A
公开(公告)日：1983-10-13
申请号：JP5700282
申请日：1982-04-05
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ARAKAWA KOUICHI , NODOKO TANEYASU
IPC分类号： H02P5/74 , B63H23/24
摘要： PURPOSE:To contrive to enhance the performance of electric propulsion, by a method wherein an output from an AC generator is supplied to one of AC motors directly and to the other through a semiconductor output controlling only in a high-torque operation. CONSTITUTION:In a low-torque operation, either one or both of the AC motors 3, 4 are driven by the output from the AC generator 2 to obtain a high-speed low-torque characteristic. In a high-torque operation, the output from the generator 2 is used to directly drive one of the motors 3, 4, and is controlled by a thyristor device 6 to drive the other of the motors 3, 4, so that a high-torque characteristic is obtained through utilizing the added characteristic of both of the motors 3, 4. Accordingly, electric propulsion with high performance can be obtained inexpensively.

7. 发明专利

JPS58174089A ELECTRIC PROPULSION DEVICE 失效
公开(公告)号：JPS58174089A
公开(公告)日：1983-10-13
申请号：JP5700182
申请日：1982-04-05
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ARAKAWA KOUICHI , NODOKO TANEYASU
IPC分类号： H02P27/06 , B63H23/24
摘要： PURPOSE:To contrive to enhance the performance of electric propulsion, by a method wherein a parallel circuit of a direct power-supplying circuit and a through-controller power-supplying circuit is provided between an AC generator and an AC motor. CONSTITUTION:In a low-speed high-torque operation of a ship, electric power obtained by the AC generator 2 can be supplied to the AC motor 3 through a thyristor 7, so that a high-torque characteristic can be obtained by a Ward- Leonard control through the thyristor. In addition, since the through-controller power-supplying circuit 6 is provided for the motor 3 separately from the direct power-supplying circuit 5, a thyristor device 7 having a capacity according to the necessity can be inserted. Further, in a low-torque operation, the direct power- supplying circuit 5 is used so that the intrinsic characteristic of the motor 3 can be utilized. Accordingly, an electric propeller relatively inexpensive and having higher performance as compared to conventional propellers can be obtained.

8. 发明专利

JPS5871761A METHOD FOR TRANSMITTING NAVIGATIONAL INFORMATION 失效
公开(公告)号：JPS5871761A
公开(公告)日：1983-04-28
申请号：JP17050481
申请日：1981-10-24
申请人： HITACHI SHIPBUILDING ENG CO
发明人： HASHIGUCHI SHINJI , ARAKAWA KOUICHI , NODOKO TANEYASU
IPC分类号： H04M11/00
摘要： PURPOSE:To enable to get plural kinds of information about the navigation of a ship through a telephone in the ship, by selecting the channel, of an automatic switchboard through a telephone, and obtaining the desired information through a voice synthesizer. CONSTITUTION:Each information signal supplied from an information signal oscillator 1 connected to a measuring instrument for information about the navigation is fed to the gate of a voice synthesizer 3 via an interface 2 and coverted into a voice signal corresponding to each information signal by the synthesizer 3 to be delivered. This voice signal is also fed to a prescribed channel of an automatic switchboard 4. Then the handset of the nearest telephone 51 is unhooked among those telephones 51-5N, and a hook switch is turned on. At the same time, the channel of the switchboard 4 is selected by operating a dial, and a talking circuit is turned on. Thus the desired information is obtained in the form of a synthetic voice of voice signals through the telephone 51.

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