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1. 发明专利

JP2005304136A Permanent magnet type dynamo-electric machine 有权
标题翻译：永磁电机型动力电机
公开(公告)号：JP2005304136A
公开(公告)日：2005-10-27
申请号：JP2004114192
申请日：2004-04-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SASAKI MANABU , IDE KAZUMASA , TAKAHASHI MIYOSHI , SATO SHUJI , KOMURA AKIYOSHI
IPC分类号： H02K21/14 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet type dynamo-electric machine which can perform stable rotation for a long period. SOLUTION: This machine is provided with means (13A-13F and 14A-14F), which press a permanent magnet 5 to the side of a retaining ring 6 at rotation, between a magnetic yoke 4Y and the permanent magnet 5 whose periphery is retained by the retaining ring 6 and which is divided in its circumferential direction. By the above constitution, even if space arises in the vicinity of the permanent magnet 5, the retention of the permanent magnet 5 becomes stable by pressing the permanent magnet 5 to the side of the retaining ring 6 at rotation, thus it can suppress low-frequency oscillation or instable oscillation at high-speed rotation. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种长时间稳定旋转的永磁式发电机。解决方案：该机器具有在磁轭4Y与周向的永久磁铁5之间旋转时将永磁体5按压在保持环6一侧的装置（13A-13F和14A-14F）被保持环6保持，并且沿其圆周方向分开。通过上述结构，即使在永久磁铁5附近产生空间，通过将永久磁铁5按压到保持环6一侧旋转，永久磁铁5的保持变得稳定，频率振荡或高速旋转时的不稳定振荡。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2004080980A System-linking system inverter device 审中-公开
公开(公告)号：JP2004080980A
公开(公告)日：2004-03-11
申请号：JP2002242142
申请日：2002-08-22
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： MIYAHARA YOJIRO , OTSUKI SATORU , NAGAYAMA YUICHI , SATO SHUJI
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To control an operation so that the overall general efficiency of the including AC generators and an inverter device becomes a maximum, when a plurality of AC generators are connected. SOLUTION: A generator system includes a plurality of turbines 1, a plurality of the generators 2 coupled to the respective turbines, and a system-linking system inverter device 10 connected to the generators 2 via switches SW. The inverter device 10 includes a rectifier 3, a voltage regulator 4 for controlling the DC output voltage to a stable predetermined voltage, a reverse-current preventing diode 5, an inverter circuit 6 for converting a DC power to an AC power to link to the system, and a maximum power control circuit 7 for outputting a switching signal SUP for selecting the use/non-use of the regulator. With the arrangement, the inverter device concurrently controls the control of the number of operating generators, in response to the output power to the system and the maximum power following control. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2003343298A Digestion gas power generator system 审中-公开
标题翻译：燃气发电机系统
公开(公告)号：JP2003343298A
公开(公告)日：2003-12-03
申请号：JP2002149959
申请日：2002-05-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KAGEYAMA KOJI , ENBUTSU ICHIRO , SATO SHUJI , HARA NAOKI
IPC分类号： F02B43/10 , C02F11/04 , C10L3/06 , F02D19/02 , G05B13/02 , H02J3/00
CPC分类号： Y02E50/343 , Y02T10/32 , Y02W10/23 , Y02W10/30
摘要： PROBLEM TO BE SOLVED: To enable an effective operation of a digestion gas power generator system by optimizing the profit of the entire system. SOLUTION: The digestion gas power generator system has a digestion tank for generating a digestion gas, a digestion gas power generator, a boiler for heating the tank, and an excess gas burning unit. The system comprises: a charging sludge temperature acquiring means; a means for calculating a digestion tank heating necessary heat quantity based on at least the charged sludge temperature; an operation optimizing means for calculating to obtain digestion gas supply control information including distribution information of the digestion gas to the digestion gas generator, the boiler and the excess gas burning unit based on at least the digestion gas generating amount and the digestion tank temperature necessary heat amount; and a digestion gas supply control means for distributing and supplying the generated digestion gas to the digestion gas power generator, the boiler and the excess gas burning unit based on the digestion gas supply control information. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过优化整个系统的利润，实现消化瓦斯发电机系统的有效运行。解决方案：消化气发生器系统具有消解气体消化槽，消化气发生器，用于加热罐的锅炉和过量气体燃烧装置。该系统包括：装料污泥温度获取装置; 至少基于带电污泥温度计算消化罐加热所需热量的装置; 操作优化装置，用于基于至少消化气体产生量和消化槽温度所需的热量，计算得到消化气体供给控制信息，其包括消化气体到消化气体发生器，锅炉和过量燃烧单元的分布信息量; 以及消化气体供给控制装置，用于基于消化气体供给控制信息将生成的消化气体分配并供给到消化气体发电机，锅炉和过量燃烧单元。版权所有（C）2004，JPO

4. 发明专利

JPH01294910A EXHAUST DEVICE FOR DIESEL ENGINE TYPE GENERATING EQUIPMENT 失效
公开(公告)号：JPH01294910A
公开(公告)日：1989-11-28
申请号：JP12414088
申请日：1988-05-21
申请人： HITACHI LTD
发明人： SATO SHUJI , MISHIMA YOSHIO
IPC分类号： F01N13/08 , F02B3/06 , F23J11/02 , F23L11/00
摘要： PURPOSE:To prevent the reverse flow of exhaust gas to the engine side during a stop, by a method wherein, in generating equipment having a plurality of diesel engines, a motor-operated valve is disposed in the exhaust piping of each engine, and each motor-operated valve is opened and closed according to operation and the stop of corresponding engine. CONSTITUTION:Industry-owned generating equipment installed at a building provided with generators 1b and 2b driven by two diesel engines 1a and 2a, and exhaust gas from engines 1a and 2a is released in the open air through an exhaust pipe 4 and a muffler 5, commonly used for exhaust pipings 3-1 and 3-2. A check valve 6 opened by means of the air pressure of exhaust gas is located in each of the exhaust pipings 3-1 and 3-2. In this case, a motor- operated valve 11 is disposed on the downstream side of check valves 6 in the exhaust pipings 3-1 and 3-2. The motor-operated valve 11 is controlled by a valve control means 12 having function to monitor the running state of each engine so that it is closed when corresponding engine is in a stop state and opened simultaneously with an engine starting command.

5. 发明专利

JPS61277857A GAS ENGINE 失效
公开(公告)号：JPS61277857A
公开(公告)日：1986-12-08
申请号：JP11995185
申请日：1985-06-03
申请人： HITACHI LTD
发明人： SATO SHUJI
IPC分类号： F02M21/02 , F02B37/00
摘要： PURPOSE:To perform reliable starting, by a method wherein, during the starting of a gas engine having a turbocharger, intake air is caused to bypass from the turbocharger, and gas fuel is also fed without pressurization. CONSTITUTION:During normal running of a gas engine 18, air supercharged by a turbocharger 5 is fed to a mixer 9, and is mixed with high pressure gas flowing through a pressure device 13 increasing the pressure of low pressure gas to a high value. During the starting of an engine, a switching valve 19 is changed over, a bypass pipe 3 is opened, intake air is fed to the mixer 9 not through the turbocharger 5, and with a valve 16 closed and a valve 15 opened, gas fuel is fed to the mixer 9 not through the pressure device 13 as the gas fuel is left kept at a low pressure. This enables to perform reliable starting without using fuel and a suction system premised on normal operation.

6. 发明专利

JPH0643822B2 失效
公开(公告)号：JPH0643822B2
公开(公告)日：1994-06-08
申请号：JP317186
申请日：1986-01-10
申请人： HITACHI LTD
发明人： SATO SHUJI , MISHIMA YOSHIO , MARUYAMA HARUO
IPC分类号： F02M21/02 , F02D19/02

7. 发明专利

JPS61215414A WHITE SMOKE PREVENTIVE EQUIPMENT OF DIGESTION GAS USING GENERATOR 失效
公开(公告)号：JPS61215414A
公开(公告)日：1986-09-25
申请号：JP5454085
申请日：1985-03-20
申请人： HITACHI LTD
发明人： SATO SHUJI , YAMAGUCHI TAKESHI , MISHIMA YOSHIO
IPC分类号： F02B43/00 , F01N5/02
摘要： PURPOSE:To prevent exhaust gas from being generated in the form of white smoke in a digestion gas generator which is installed in the field of a sewage processing plant by providing a controller for the quantity of heat recovered from waste heat of a gas engine so as to keep exhaust gas at a specified temperature. CONSTITUTION:In a digestion gas generator, digestion gas 3 generated in the slage processing process of a sewage processing plant is employed as fuel for driving a gas engine 1 to operate a generator 2. The generator then produces electric power 5 and supplies it for plant equipment via a generator control board. The heat contained in cooling water 6 inside the gas engine 1 and the heat contained in exhaust gas 8 are, respectively, recovered in exhaust gas heat-exchanger 7 and 9 by circulating hot water 10. Temperature of the outlet of the gas heat-exchanger 9 is sensed by a temperature sensor 16 to control a hot water circulating pump 18 via a recovery heat controller 17. Exhaust gas can be maintained at approximately 120 deg.C so that generation of white smoke is prevented.

8. 发明专利

JP2003222301A OPERATION CONTROL METHOD AND SYSTEM OF PROCESS STEAM GENERATION EQUIPMENT FOR INDUSTRY 审中-公开
公开(公告)号：JP2003222301A
公开(公告)日：2003-08-08
申请号：JP2002023229
申请日：2002-01-31
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： AMANO HAJIME , MAO TAKASHI , SATO SHUJI
IPC分类号： F02G5/02 , F02G5/04 , F22B1/18 , F22B35/00
摘要： PROBLEM TO BE SOLVED: To solve such a problem that in equipment in which a plurality of devices are installed having a motor, power generator, an exhaust heat recovery boiler for exhaust heat of the motor and a fuel fired boiler, control has been made with emphasis on generated power and has not been necessarily efficient and economical in view of the generated steam volume in the number of operating units and the demand and supply balance of steam, and to provide an operating system and a system of process steam generation equipment with efficient operation. SOLUTION: Steam generation efficiency of a first steam generation equipment and a second steam generation equipment are calculated, operating priority is determined from the higher of the calculated steam generation efficiency for the increase of steam demand of a process for supplying steam, while the operating priority is determined from the lower of the calculated steam generation efficiency for the decrease of the steam demand of the process, and operation is made sequentially according to the order of the determined operating priority so as to supply steam to the process. COPYRIGHT: (C)2003,JPO

9. 发明专利

JPS6170138A Supercharged gas engine with additional function of gas pressure booster 失效
标题翻译：具有气压增压器附加功能的超级气体发动机
公开(公告)号：JPS6170138A
公开(公告)日：1986-04-10
申请号：JP18958984
申请日：1984-09-12
申请人： Hitachi Ltd
发明人： SATO SHUJI , MISHIMA YOSHIO
IPC分类号： F02B37/00 , F02B43/00 , F02M21/02
CPC分类号： F02B43/00 , F02D19/023 , F02M21/0224 , Y02T10/32
摘要： PURPOSE:To obtain a gas pressure booster which needs no electric power for the operation thereof and requires a small installing area only by mounting both an air supercharger and a fuel gas pressure booster at the driving part of a supercharger. CONSTITUTION:The rotor shaft 18 of a turbine 13 which is turned by the operation of exhaust gas has an air blower impeller 12, by which air is sucked via an air filter 20. The air is fed into an intake valve 17 also has a gas blower impeller 12 at the opposed end thereof, by which fuel gas 9 having been sent from a gas piping 21 via a gas filter 19 is increased in pressure. The fuel gas having pressure increased is then sent into a gas carbureter 1 via a gas cooler 7, a surge tank 8 and a gas regulator 3.
摘要翻译：目的：为了获得不需要电力进行操作的气体升压器，只需将空气增压器和燃气增压器都安装在增压器的驱动部分，就需要较小的安装区域。构成：通过排气操作而转动的涡轮13的转子轴18具有鼓风机叶轮12，空气通过空气过滤器20被吸入空气。进气阀17还具有气体在其相对端的鼓风机叶轮12，其中从气体管道21经由气体过滤器19送出的燃料气体9的压力增加。具有压力增加的燃料气体然后通过气体冷却器7，稳压罐8和气体调节器3被送入气体化油器1。

10. 发明专利

JPS63217958A SINGLE-PHASE/3-PHASE GENERATOR 失效
公开(公告)号：JPS63217958A
公开(公告)日：1988-09-12
申请号：JP4998787
申请日：1987-03-06
申请人： HITACHI LTD
发明人： KUROSAWA TAKASHI , SATO SHUJI , MISHIMA YOSHIO
IPC分类号： H02K19/34
摘要： PURPOSE:To increase a single-phase load capacity by composing a field winding of a DC-exciting winding and an AC-exciting winding, and cancelling a reverse phase magnetic flux generated in an armature winding at the time of single- phase load by the AC-exciting winding. CONSTITUTION:A field winding is composed of a DC-exciting winding 3a and an AC-exciting winding 5, and the winding 3a is DC-excited to generate 3-phase AC voltages in armature windings 1a. A cancelling magnetic flux for cancelling the reverse phase magnetic flux generated in the winding 1a at the time of single-phase load is generated in the winding 5. A DC-exciting current is supplied through an AC exciter 6 and a rotary rectifier 7 to the winding 3a to generate a generator voltage. Further, the winding 5 is supplied from an AC exciter 9 to a rectifier 11. As a result, a single-phase load capacity can be increased without affecting the influence of a reverse phase current at the time of single- phase load.

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