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1. 发明专利

JP2006009701A Operation method of gas engine, and gas engine 有权
标题翻译：燃气发动机和燃气发动机的运行方法
公开(公告)号：JP2006009701A
公开(公告)日：2006-01-12
申请号：JP2004188549
申请日：2004-06-25
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： YONEZAWA RIKIDO , ITO YOSHIHARU , SHIMODA HIROMI , OGAWA MASAKI , FUJIWAKA TAKAO , TANAKA DAIKI
IPC分类号： F02B19/10 , F02B19/12 , F02B19/14 , F02D19/02 , F02D19/08 , F02D19/10 , F02D41/06 , F02D43/00 , F02D45/00 , F02M21/02 , F02M21/04 , F02P13/00 , F02P19/02
CPC分类号： F02B19/10 , F02B19/12 , Y02T10/125
摘要： PROBLEM TO BE SOLVED: To provide an operation method of a gas engine and the gas engine, capable of suppressing a detrimental effect due to exhaust gas at starting, and shortening the starting time.
SOLUTION: Each cylinder 2 of the gas engine 1 is provided with a main combustion chamber 3 formed between a cylinder liner 21 and a piston 22 and a pre-combustion chamber 4 formed adjacent to the main combustion chamber 3. An ignition plug 31 for igniting mixture gas F of fuel gas and air is arranged in the main combustion chamber 3. A liquid fuel injection nozzle 42 for injecting liquid fuel P and a glow plug 41 for heating and self-igniting liqued fuel are arranged in a pre-combustion chamber 4. At starting the gas engine 1, the ignition plug 31 and a glow plug 41 are used together to make combustion operation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种燃气发动机和燃气发动机的操作方法，其能够抑制起动时由废气引起的有害影响，缩短起动时间。解决方案：气体发动机1的每个气缸2设置有形成在气缸套21和活塞22之间的主燃烧室3和邻近主燃烧室3形成的预燃烧室4.火花塞用于点燃燃料气体和空气的混合气体F的燃料气体31被设置在主燃烧室3中。用于喷射液体燃料P的液体燃料喷射喷嘴42和用于加热和自燃液化燃料的电热塞41被布置在预燃料燃烧室4.在启动燃气发动机1时，火花塞31和电热塞41一起使用以进行燃烧操作。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005299542A Engine 审中-公开
标题翻译：发动机
公开(公告)号：JP2005299542A
公开(公告)日：2005-10-27
申请号：JP2004118013
申请日：2004-04-13
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： FUJIWAKA TAKAO , NAKAI SHUNSAKU , ITO YOSHIHARU , TAKAHASHI YOSHIHIRO , SHIMODA HIROMI , OGAWA MASAKI
IPC分类号： F02B3/06 , F02B19/10 , F02D19/02 , F02D19/08 , F02D19/10 , F02D41/02 , F02D41/34 , F02D45/00 , F02M21/02
CPC分类号： Y02T10/125 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To suppress temporary engine revolution speed increase more than tolerance by a simple structure.
SOLUTION: In an engine 100 constructed to perform injection ignition operation in which air fuel mixture MG is ignited by injecting sub fuel SF from a fuel injection valve 25 and burning the same with self ignition in a combustion chamber 1 having air fuel mixture MG composed of main fuel MF compressed and provided with an engine revolution speed establishing means 41 setting engine revolution speed in a target revolution speed range by adjusting intake air quantity of air fuel mixture into the combustion chamber 1, a judgment means 42 judging a high revolution speed condition under which engine revolution speed is more then a target revolution speed range, and a processing means 43 performing revolution speed rise avoidance process reducing or stopping injection volume of sub fuel SF from the fuel injection valve 25 when the judgment means 42 judges the high revolution speed condition is provided.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过简单的结构来抑制临时发动机转速增加超过公差。解决方案：在构造成执行喷射点火操作的发动机100中，其中通过从燃料喷射阀25喷射副燃料SF并且在具有空气燃料混合物的燃烧室1中以自燃点燃来燃烧空气燃料混合物MG 由主燃料MF构成的MG构成，具有通过调节进入燃烧室1的空气燃料混合物的进气量而将目标转速范围内的发动机转速设定为发动机转速建立单元41的判定单元42，发动机转速高于目标转速范围的转速条件，以及执行转速上升回避处理的处理装置43，当判断装置42判断为高时，减少或停止来自燃料喷射阀25的副燃料SF的喷射量提供了转速条件。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005299541A Engine 审中-公开
标题翻译：发动机
公开(公告)号：JP2005299541A
公开(公告)日：2005-10-27
申请号：JP2004118012
申请日：2004-04-13
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： FUJIWAKA TAKAO , TANAKA DAIKI , ISHIBASHI KOJI , IYODA KAZUNOBU , SHIMODA HIROMI , OGAWA MASAKI
IPC分类号： F02B7/06 , F02B11/00 , F02B15/00 , F02B19/10 , F02D19/08 , F02D41/04 , F02D43/00 , F02D45/00 , F02M21/02
CPC分类号： Y02T10/125 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To suppress temporary engine revolution speed reduction less than tolerance by a simple structure.
SOLUTION: In an engine 100 constructed to perform injection ignition operation in which air fuel mixture MG is ignited by injecting sub fuel SF from a fuel injection valve 25 and burning the same with self ignition in a combustion chamber 1 having air fuel mixture MG composed of main fuel MF compressed and provided with an engine revolution speed establishing means 41 setting engine revolution speed in a target revolution speed range by adjusting intake air quantity of air fuel mixture into the combustion chamber 1, a judgment means 42 judging a low revolution speed condition under which engine revolution speed is less then a target revolution speed range, and a processing means 43 increasing equivalent ratio of air fuel mixture MG sucked in the combustion chamber 1 and performing revolution speed drop avoidance process reducing injection volume of sub fuel SF from the fuel injection valve 25 when the judgment means 42 judges the low revolution speed condition is provided.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过简单的结构抑制小于公差的发动机转速降低。解决方案：在构造成执行喷射点火操作的发动机100中，其中通过从燃料喷射阀25喷射副燃料SF并且在具有空气燃料混合物的燃烧室1中以自燃点燃来燃烧空气燃料混合物MG 由主燃料MF组成的MG由压缩的发动机转速建立装置41构成，该发动机转速建立装置41通过调节进入燃烧室1的空气燃料混合物的进气量来设定目标转速范围内的发动机转速;判断装置42判断低转速发动机转速低于目标转速范围的转速条件，以及提高吸入燃烧室1中的空气燃料混合物MG的当量比并且进行降低转速降低过程的处理装置43，从而将副燃料SF的喷射量从提供当判断装置42判断低转速条件时的燃料喷射阀25。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005273492A Indirect injection type internal combustion engine 审中-公开
标题翻译：间接喷射式内燃机
公开(公告)号：JP2005273492A
公开(公告)日：2005-10-06
申请号：JP2004085254
申请日：2004-03-23
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： TATSUMI KATSUHIKO , OGAWA MASAKI , FUJIWAKA TAKAO , NAKAI SHUNSAKU , YONEZAWA RIKIDO
IPC分类号： F02P13/00 , F01P3/16 , F02B7/06 , F02B19/10 , F02B19/16 , F02B43/04 , F02D19/02 , F02D19/08 , F02F1/24 , F02F1/36
CPC分类号： Y02T10/125 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide an indirect injection type internal combustion engine which favorably retains cooling function of a cooling part for a high-temperature part surrounding a sub-chamber and for members attached to a sub-chamber body such as fuel injection valves, ignition plugs or the like, and simplifies the structure of the cooling part, thus reduces the number of working man-hours and working cost.
SOLUTION: The ignition flame generated by firing combustion inside the sub-chamber, which is formed inside the sub-chamber body fixed to a cylinder head, is issued into a main combustion chamber of the indirect injection type internal combustion engine, and the gaseous fuel inside the main combustion chamber is combusted. A cooling passage is formed in the interior of the sub-chamber body, directly connected to a cylinder head cooling chamber. Then the cooling water inside the cylinder head cooling chamber is flowed through the cooling passage. Thus, the indirect injection type internal combustion engine is constituted so that the sub-chamber body and/or the members attached to the sub-chamber body can be cooled.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种间接喷射型内燃机，其有利地保持用于围绕副室的高温部件的冷却部件的冷却功能以及附接到诸如燃料的子室主体的部件喷射阀，火花塞等，并且简化了冷却部件的结构，从而减少了工作人员和工作成本。解决方案：将形成在固定到气缸盖上的子室主体内部的副室内的燃烧燃烧产生的点火火焰发送到间接喷射式内燃机的主燃烧室，主燃烧室内的气体燃料燃烧。冷却通道形成在子室主体的内部，直接连接到气缸盖冷却室。然后气缸盖冷却室内的冷却水流过冷却通道。因此，间接喷射型内燃机构成为能够冷却副室主体和/或安装在副室主体上的部件。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005273494A Indirect injection type internal combustion engine provided with high-frequency heating device 有权
标题翻译：使用高频加热装置的间接喷射式内燃机
公开(公告)号：JP2005273494A
公开(公告)日：2005-10-06
申请号：JP2004085256
申请日：2004-03-23
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： TATSUMI KATSUHIKO , OGAWA MASAKI , FUJIWAKA TAKAO , NAKAI SHUNSAKU , YONEZAWA RIKIDO , ISHIBASHI KOJI
IPC分类号： F02B19/16 , F02B19/14
CPC分类号： Y02T10/125
摘要： PROBLEM TO BE SOLVED: To provide an indirect injection type internal combustion engine which freely performs heating and breaking inside a sub-chamber according to operation conditions of an engine, can control the temperature inside the sub-chamber at required high temperature in accordance with the operation conditions of the engine, and always retains favorable ignition from the starting of the engine to all driving ranges even in the case of driving under conditions of cryogenic temperature such as in cold climate areas, or driving using fire-retardant fuel, thus can perform a stable combustion.
SOLUTION: The indirect injection type internal combustion engine is provided with a high-frequency heating device and a controller. The high-frequency heating device has a high-frequency coil which is wound at a mouthpiece of the sub-chamber, and through which high-frequency current is passed from a high-frequency transmitter, and the interior of the sub-chamber is heated by the high-frequency coil. Then the controller controls energization and breaking to the high-frequency heating device according to the operation conditions of the engine including either engine RPM or the load on the engine, or both. The controller is constituted so that it energizes the high-frequency coil through the high-frequency transmitter when the operation conditions of the engine are at low-range revolutions or in the low-load ranges, that is to say, at or below constant rpm or load. Then the controller breaks the energization when the operation conditions of the engine exceed the constant rpm or load.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种根据发动机的运转条件自由地在子室内进行加热和断裂的间接喷射式内燃机，可以将子室内的温度控制在所需的高温下并且始终保持从发动机起动到所有驾驶范围的有利的点火，即使在低温条件下驾驶的情况下，例如在寒冷的气候区域，或使用阻燃燃料的驾驶，从而可以进行稳定的燃烧。解决方案：间接喷射式内燃机设置有高频加热装置和控制器。高频加热装置具有卷绕在副室的接口处的高频线圈，高频电流从高频发送器通过，副室的内部被加热由高频线圈组成。然后，控制器根据包括发动机RPM或发动机上的负载的发动机的操作条件或两者来控制对高频加热装置的通电和断开。控制器构成为，当发动机的运转条件处于低转速或低负载范围时，即在等于或小于恒定转速时，通过高频变送器对高频线圈通电或加载。然后，当发动机的运行条件超过恒定rpm或负载时，控制器断开通电。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005291066A Engine 审中-公开
标题翻译：发动机
公开(公告)号：JP2005291066A
公开(公告)日：2005-10-20
申请号：JP2004106083
申请日：2004-03-31
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： NAKAI SHUNSAKU , FUJIWAKA TAKAO , ISHIBASHI KOJI , IYODA KAZUNOBU , IMAMICHI AKIRA , ENDO HIROYUKI
IPC分类号： F02F1/24 , F02D19/10 , F02D19/12 , F02D41/22 , F02D45/00 , F02M21/02 , F02M25/022 , F02M43/00 , F02M51/00 , F02M61/14 , F02M61/16 , F02M61/18
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide technology capable of eliminating a clogging condition of an injection hole 25a of a fuel injection valve 25 under a condition that operation of the engine 100 continues with a simple structure in relation to the engine 100 performing injection ignition operation igniting air fuel mixture MG by injecting sub fuel SF from the fuel injection valve 25 and making the same self ignition combustion in a combustion chamber 1 compressing air fuel mixture MG of main fuel MF. SOLUTION: This engine is provided with a clogging condition determination means 42 determining a clogging condition that an injection hole 25a is clogged by deposit and an addition means 55 adding additive R for eliminating clogging condition in sub fuel SF supplied to the fuel injection valve 25. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够消除燃料喷射阀25的喷射孔25a的堵塞状况的技术，在发动机100的运转以相对于执行喷射的发动机100的简单结构继续运行的条件下点火操作通过从燃料喷射阀25喷射副燃料SF并且在压缩主燃料MF的空气燃料混合物MG的燃烧室1中进行相同的自点燃燃烧来点燃空气燃料混合物MG。解决方案：该发动机设置有堵塞条件确定装置42，其确定喷射孔25a被沉积物堵塞的堵塞状况;以及添加装置55，添加用于消除供给燃料喷射的副燃料SF中的堵塞状况的添加剂R 阀门25.版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005273493A Internal combustion engine equipped with method and device for detecting/correcting fuel injection valve state 有权
标题翻译：内燃机配备有检测/校正燃油喷射阀的方法和装置
公开(公告)号：JP2005273493A
公开(公告)日：2005-10-06
申请号：JP2004085255
申请日：2004-03-23
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： TATSUMI KATSUHIKO , OGAWA MASAKI , FUJIWAKA TAKAO , TANAKA DAIKI , TAKAHASHI YOSHIHIRO , ITO YOSHIHARU
IPC分类号： F02M21/02 , F02D19/08 , F02D41/22 , F02D41/40 , F02D45/00 , F02M51/00 , F02M65/00
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for detecting/correcting a state of a fuel injection valve of an auxiliary chamber type gas engine equipped with the fuel injection valve for ignition, in which existence or nonexisting of clogging of an injection hole in operation of an engine can be highly accurately and constantly determined by using a very simple method with high working efficiency and thereby to prevent deterioration of engine performance caused by the clogging of the injection hole, and the service life of the fuel injection valve can be elongated. SOLUTION: The auxiliary chamber type gas engine has the fuel injection valve for ignition for igniting and burning gas fuel in an auxiliary chamber of the engine so that ignition flame is blown into a main combustion chamber to burn gas fuel in the main combustion chamber. In detection/correction of the state of the fuel injection valve of the auxiliary chamber type gas engine, consumption of fuel injected from the fuel injection valve is detected, the fuel consumption detection value is compared to allowable fuel consumption of clogging of the injection hole set to correspond to an engine operating condition. When the fuel consumption detection value is allowable fuel consumption or less, generation of the clogging of the injection hole is determined, and a fuel injection amount of the fuel injection valve is increased. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于检测/校正配备有用于点火的燃料喷射阀的辅助室型燃气发动机的燃料喷射阀的状态的方法和装置，其中存在或不存在堵塞通过使用工作效率高的非常简单的方法，可以高精度地，持续地确定发动机的运转中的喷射孔，能够防止喷射孔堵塞引起的发动机性能的劣化，燃料喷射的使用寿命阀门可以伸长。解决方案：辅助室型燃气发动机具有用于点火的燃料喷射阀，用于在发动机的辅助室中点燃和燃烧气体燃料，使得点燃火焰吹入主燃烧室以燃烧主燃烧气体燃料室。在辅助室式燃气发动机的燃料喷射阀的状态的检测/校正中，检测从燃料喷射阀喷射的燃料的消耗，将燃料消耗检测值与喷射孔组的堵塞的容许燃料消耗量进行比较以对应于发动机工作状态。当燃料消耗检测值为允许燃料消耗量以下时，确定喷射孔的堵塞的产生，并且燃料喷射阀的燃料喷射量增加。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005291065A Engine 有权
标题翻译：发动机
公开(公告)号：JP2005291065A
公开(公告)日：2005-10-20
申请号：JP2004106082
申请日：2004-03-31
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東邦瓦斯株式会社
发明人： TANAKA DAIKI , FUJIWAKA TAKAO , ITO YOSHIHARU , TAKAHASHI YOSHIHIRO , IMAMICHI AKIRA , ENDO HIROYUKI
IPC分类号： F02P15/08 , F02B7/06 , F02B11/00 , F02B19/10 , F02B19/12 , F02B19/14 , F02B23/08 , F02B43/00 , F02D19/02 , F02D19/10 , F02D41/02 , F02D43/00 , F02D45/00 , F02M21/02
CPC分类号： Y02T10/125 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide technology enabling smooth transition between spark ignition operation and injection ignition operation and prevention of misfire or high temperature of exhaust gas by appropriately burning air fuel mixture in spark ignition operation in relation to an engine 100 performing injection combustion operation by injecting sub fuel SF from a fuel injection valve 25 and igniting air fuel mixture by self ignition combustion in a combustion chamber 1 compressing air fuel mixture of main fuel.
SOLUTION: A plurality of ignition plugs 30 are provided in a combustion chamber 1. Spark ignition operation igniting air fuel mixture compressed in the combustion chamber 1 with operating all of a plurality of the ignition plugs 30. During transition from spark ignition operation to injection ignition operation, partial ignition operation igniting air fuel mixture compressed in the combustion chamber 1 with operating a part of a plurality of the ignition plugs 30 is performed as transition operation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供通过在执行喷射的发动机100的火花点火操作中适当地燃烧空气燃料混合物来提供火花点火操作和点火点火操作之间的平滑过渡以及防止排气的失火或高温的技术通过从燃料喷射阀25喷射副燃料SF并通过压缩主燃料的空气燃料混合物的燃烧室1中的点火燃烧来点燃空气燃料混合物进行燃烧操作。解决方案：多个火花塞30设置在燃烧室1中。火花点火操作点燃在燃烧室1中压缩的空气燃料混合物，操作所有多个火花塞30.在从火花点火操作进行点火操作时，通过操作多个火花塞30的一部分来点燃在燃烧室1中压缩的空气燃料混合物的部分点火操作被执行作为过渡操作。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2008253092A Automatic synchronization method 有权
标题翻译：自动同步方法
公开(公告)号：JP2008253092A
公开(公告)日：2008-10-16
申请号：JP2007093528
申请日：2007-03-30
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社
发明人： FUJIWAKA TAKAO , YAMAMURO KOZO , KADO TAKASHI , HAHATA TOMOO
IPC分类号： H02J3/42 , H02P9/04
摘要： PROBLEM TO BE SOLVED: To comparatively simplify a constitution, reduce a synchronization time required for completing a synchronization, and instantaneously start to supply power to an important power load since an interruption occurs in an automatic synchronization method for synchronizing a plurality of synchronous power generators in an unloaded state. SOLUTION: The automatic synchronization method sequentially implements a step of increasing rotating speeds of a plurality of the synchronous power generators 10 to a predetermined rotating speed, a step of turning on output-side switches 13 for opening/closing outputs of a plurality of the synchronous power generators 10, and connecting the outputs of a plurality of the synchronous power generators 10 in parallel, and a step of simultaneously setting output voltages of a plurality of the synchronous power generators 10 at a predetermined voltage. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了相对简化结构，减少完成同步所需的同步时间，并且由于在用于同步多个同步的自动同步方法中发生中断而立即开始向重要的电力负载供电发电机处于卸载状态。解决方案：自动同步方法顺序地实现将多个同步发电机10的转速提高到预定转速的步骤，打开/关闭多个输出的输出侧开关13的步骤并且并联连接多个同步发电机10的输出，同时将多个同步发电机10的输出电压设定在规定电压的步骤。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008138568A Air-fuel ratio control device for generator driving engine 有权
标题翻译：发电机驱动发动机的空燃比比控制装置
公开(公告)号：JP2008138568A
公开(公告)日：2008-06-19
申请号：JP2006324642
申请日：2006-11-30
申请人： Mitsubishi Heavy Ind Ltd , Osaka Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社
发明人： YAMAMOTO YUSUKE , FUJIWAKA TAKAO , IIIZUMI MASAYUKI , NOGUCHI TOMOHIRO , TAKAMATSU MIKIO
IPC分类号： F02D41/04 , F02D29/06
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device for a generator driving engine capable of, when performing no-load operation in response to a load interruption signal from a load interrupting device in the case of stopping the engine, preventing the functional deterioration of a catalyst by avoiding an excessive temperature rise of a catalyst device arranged in an exhaust passage so as to improve the durability of the catalyst, securing a surplus output in a region of transition from the no-load operation to light-load operation so that the engine can be shifted to load operation smoothly, thereby maintaining the high operating performance of a power generation system.
SOLUTION: The generator driving engine includes the catalyst device arranged in the exhaust passage, the load interrupting device for interrupting the load of the engine, and a synchronizer for synchronization with commercial power. The generator driving engine is provided with a controller for setting an air-fuel ratio of the engine to be a lean air-fuel ratio equal to or smaller than a predetermined air-fuel ratio when the engine load interruption signal is issued from the load interrupting device and setting the air-fuel ratio to be a normal air-fuel ratio exceeding the predetermined air-fuel ratio when a synchronization signal for synchronizing power generated by the generator and the commercial power is issued from the synchronizer.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于发电机驱动引擎的空燃比控制装置，其能够在停止发动机的情况下响应于来自负载中断装置的负载中断信号而执行空载操作通过避免布置在排气通道中的催化剂装置的过度的温度升高来防止催化剂的功能劣化，从而提高催化剂的耐久性，确保从空载操作转变到光的区域中的剩余输出能够使发动机平稳地转向负载运转，从而保持发电系统的高运行性能。解决方案：发电机驱动引擎包括布置在排气通道中的催化剂装置，用于中断发动机负载的负载中断装置，以及与商用电力同步的同步器。发电机驱动发动机设置有控制器，用于当从负载中断发出发动机负载中断信号时，将发动机的空燃比设定为稀空燃比等于或小于预定空燃比并且当从同步器发出用于产生发电机产生的同步电力的同步信号和商用电力时，将空燃比设定为超过预定空燃比的正常空燃比。版权所有（C）2008，JPO＆INPIT

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