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    • 4. 发明专利
    • エンジンシステム
    • 发动机系统
    • JP2014199029A
    • 2014-10-23
    • JP2013074803
    • 2013-03-29
    • 大阪瓦斯株式会社Osaka Gas Co Ltdパナソニック株式会社Panasonic Corp
    • TANAKA DAIKIYAKUSHIJI SHINGOSAKO TAKAHIROOTSUKA HIROFUMISAKAI HISASHIGEMURAI NORIMICHIIMAI KAZUYAKANAI HIROSHINAKAJIMA KATSUNORIIDE YUKIHIRO
    • F02D19/02F02D41/04
    • Y02T10/32
    • 【課題】排気路に触媒を配置したエンジンシステムにおいて、エンジン効率の低下を抑制しつつ排気路に設けた触媒を迅速に昇温させて当該触媒の浄化効率を向上させる。【解決手段】燃料ガスFが連続的に通流する主ガス供給路12aと、開閉作動弁13を設けた副ガス供給路12bとを、吸気路20に対して並列接続して備え、制御手段50が、開閉作動弁13の開閉作動のデューティー比制御によりエンジン30に吸気される混合気Mの空燃比を制御する空燃比設定制御を実行すると共に、開閉作動弁13の開閉作動周期、及び、吸気路20へのガス供給路12による総燃料ガス供給量に対する副ガス供給路12bからの燃料ガスF供給量の割合であるガス供給割合の少なくとも一方を増加させて、触媒41を昇温させる触媒昇温処理を実行する。【選択図】図1
    • 要解决的问题:通过快速提高设置在排气通道中的催化剂的温度来提高催化剂的净化效率,同时抑制在排气通道中布置催化剂的发动机系统中发动机效率的降低。解决方案:主气体 用于连续循环燃料气体F的供应通道12a和具有打开/关闭操作阀13的副气体供给通道12b平行地连接到进气通道20.控制装置50执行用于控制空气的空燃比设定控制 - 通过用于打开/关闭打开/关闭操作阀13的占空比控制由发动机30吸入的空气 - 燃料混合物M的燃料比,并且增加打开/关闭操作阀的打开/关闭操作时段中的至少一个 13,以及气体供给量,其是来自副气体供给通路12b的燃料气体F的供给量与供气通路12的总燃料气体供给量的比率 进气通道20,以便执行用于提高催化剂41温度的催化剂升温处理。
    • 5. 发明专利
    • Engine system
    • 发动机系统
    • JP2013130069A
    • 2013-07-04
    • JP2011278166
    • 2011-12-20
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • TANAKA DAIKIKOBAYASHI KAZUNOBUSAKO TAKAHIROYAKUSHIJI SHINGO
    • F02D41/04F01N3/24F02P5/15
    • Y02T10/22
    • PROBLEM TO BE SOLVED: To provide a technique which enables switching of combustion mode in an appropriate state so as to achieve expected specifications in terms of performance and life in efficiency, emission or the like, in an engine system configured so that a combustion mode of an engine can be switched freely between a stoichiometric combustion mode and a lean combustion mode according to engine load.SOLUTION: A recognizable operating condition of a stoichiometric combustion mode operating ratio Rs which is a ratio of a stoichiometric combustion mode cumulative operating amount Ts related to a cumulative operating amount in the stoichiometric combustion mode against the total cumulative operating amount Tt is monitored, and a switching value correcting process which corrects a combustion mode switching value L0 that is a threshold of an engine load when switching the combustion mode between the stoichiometric combustion mode and the lean combustion mode according to the stoichiometric combustion mode operating ratio Rs is carried out.
    • 要解决的问题:提供一种技术,其能够将燃烧模式切换到适当的状态,从而在效率,排放等的性能和寿命方面达到期望的规格,在发动机系统中, 根据发动机负荷,发动机可以在化学计量燃烧模式和稀燃燃烧模式之间自由切换。解决方案:化学计量燃烧模式运行比Rs的可识别操作条件,其为化学计量燃烧模式累积运行量Ts与 监测与化学计量燃烧模式相对于总累计运行量Tt的累计运行量,以及切换值校正处理,其在燃烧模式切换化学计量燃烧时校正作为发动机负荷阈值的燃烧模式切换值L0 模式和稀燃燃烧模式 执行三次燃烧模式运行比Rs。
    • 6. 发明专利
    • Heat pump system
    • 热泵系统
    • JP2007263387A
    • 2007-10-11
    • JP2006085332
    • 2006-03-27
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • YAKUSHIJI SHINGONAKAI SHUNSAKUSAKO TAKAHIROSATO HIRONORITANAKA DAIKI
    • F25B27/00
    • PROBLEM TO BE SOLVED: To provide technology capable of achieving both of high efficiency and low NOx in a heat pump system comprising an engine-driven compression type heat pump circuit, a generator motor operable as a motor assisting output of an engine or a generator generating power by the output of the engine, and a control means controlling the operation of the generator motor on the basis of a heat load of the compression type heat pump circuit.
      SOLUTION: The heat pump system comprises a NOx emission state determining means for determining an emission state of NOx from the engine, and the control means is constituted to correct the output of the generator motor on the basis of a result of the determination by the NOx emission state determining means.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够在包括发动机驱动的压缩式热泵回路的热泵系统中实现高效率和低NOx的技术,可用作辅助发动机的输出的电动机的发电机马达或 通过发动机的输出发电的发电机,以及基于压缩式热泵回路的热负荷来控制发电电动机的动作的控制装置。 解决方案:热泵系统包括用于确定来自发动机的NOx的排放状态的NOx排放状态确定装置,并且控制装置构成为基于确定的结果校正发电机电动机的输出 由NOx排放状态确定装置。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Engine
    • 发动机
    • JP2006266088A
    • 2006-10-05
    • JP2005081069
    • 2005-03-22
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • TANAKA DAIKIYAKUSHIJI SHINGOITO SEIICHINAKAI SHUNSAKU
    • F02B17/00F02D21/08F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To stratify or uniformize exhaust gases in a combustion chamber by a simple structure and stabilize a combustion state and reduce NOx by switching the stratification or uniformization of the exhaust gases properly according to the operating state of the engine in the engine in which EGR is performed.
      SOLUTION: In this engine, an exhaust gas supply part 11 comprises an exhaust gas supply part 11A for stratification having an exhaust gas mixing route rate (VL/VG) of an exhaust gas mixing route volume to one-cycle intake air volume within the range of 0.5 to 1.0 or 1.5 to 2.0 to stratify the exhaust gases E in the combustion chamber 1, or comprises an exhaust gas supply part 11B for uniformization having an exhaust gas mixing route ratio within the range of less than 0.5 and equal to or more than 1.0 and within the range less than 1.5 or equal to or more than 2.0 so that the exhaust gases E in the combustion chamber 1 can be uniformized.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过简单的结构对燃烧室中的废气进行分层或均匀化,并通过根据发动机的运行状态适当地切换排气的分层或均匀化来稳定燃烧状态并减少NOx 执行EGR的发动机。 解决方案:在该发动机中,废气供给部11包括排气供给部11A,其具有排气混合路径量(VL / VG)与排气混合路径体积的一个循环进气量 在0.5〜1.0或1.5〜2.0的范围内,以对燃烧室1中的废气E进行分层,或者包括排气供给部11B,其排气混合路径比在小于0.5且等于 或大于1.0并且在小于1.5或等于或大于2.0的范围内,使得燃烧室1中的废气E能够均匀化。 版权所有(C)2007,JPO&INPIT
    • 8. 发明专利
    • Generation system and power feeding method of generation system
    • 发电系统的发电系统和功率馈电方法
    • JP2005348481A
    • 2005-12-15
    • JP2004163017
    • 2004-06-01
    • Negishi Seisakusho:KkOsaka Gas Co Ltd大阪瓦斯株式会社株式会社根岸製作所
    • FUJIMOTO HIROSHIYAKUSHIJI SHINGOYASUEDA TAKESHI
    • H02M7/48H02P9/04H02P9/14
    • Y02E20/14
    • PROBLEM TO BE SOLVED: To provide a power feeding method of a generation system that can suppress a control delay by reducing an overload amount of an AC generator, when the AC generator is brought into an overload state. SOLUTION: A first converter 6 that converts AC power from a commercial power supply 4 to DC power and a second converter 12 that converts AC power from the AC generator 10 to DC power are connected in series to the DC side of an inverter 2 that converts DC power to AC power, and powers from the commercial power supply 4 and the AC generator 10 are fed to a power load 14 connected to the AC side of the inverter 2. A voltage adjustment means 30 varies an output voltage of the AC generator 10 following a feed voltage of the commercial power supply 4 so that the output voltage of the AC generator 10 becomes higher than the feed voltage of the commercial power supply 4 by a prescribed amount on the basis of a voltage following signal 24. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种通过减少AC发电机的过载量来抑制控制延迟的发电系统的馈电方法,当AC发电机处于过载状态时。 解决方案:将来自商用电源4的交流电力转换为直流电力的第一转换器6和将来自交流发电机10的交流电力转换为直流电力的第二转换器12串联连接到逆变器的直流侧 2将直流电力转换为交流电源,并且来自商用电源4和交流发电机10的电力被馈送到连接到逆变器2的AC侧的电力负载14.电压调节装置30改变 交流发电机10,其根据商用电源4的馈电电压,使得交流发电机10的输出电压基于电压跟随信号24变得高于商用电源4的馈电电压预定量。 P>版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Power generation system
    • 发电系统
    • JP2005278231A
    • 2005-10-06
    • JP2004084121
    • 2004-03-23
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • YAKUSHIJI SHINGOFUJIMOTO HIROSHIMORIYA KOJI
    • H02J3/46H02J3/00
    • PROBLEM TO BE SOLVED: To provide a highly economic power generation system by utilizing generated power and exhaust heat efficiently even when power consumption or heat demand at a heat consuming section varies significantly while reducing the cost of a system where a power load 13 is born by a plurality of cogeneration facilities A, B and C and a commercial power supply 1. SOLUTION: In the power generation system where a power generation facility including a plurality of cogeneration facilities A, B and C and a commercial power supply 1 are subjected to DC interconnection, its control section 26 determines priority of the plurality of power generation facilities based on a heat demand detected at a heat demand detecting section 22, and operates the power generation facilities sequentially according to the priority when a commercial electric energy monitoring section 29 detects a fact that electric energy W flowing from the commercial power supply 1 into the DC interconnection line exceeded a predetermined level. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:即使当热消耗部分的功率消耗或热量需求显着变化同时降低功率负载13的系统的成本时,即使有效地利用发电和排热来提供高度经济的发电系统 由多个热电联产设备A,B和C以及商用电源1产生。解决方案:在包括多个热电联供设备A,B和C的发电设备和商业电力的发电系统中 电源1经受直流互联,其控制部分26基于在热需求检测部分22检测到的热需求来确定多个发电设备的优先级,并且当商业电力 能量监测部29检测从商用电源1流入DC互连线路的电能W的事实 ne超过预定水平。 版权所有(C)2006,JPO&NCIPI