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    • 2. 发明专利
    • Engine
    • 发动机
    • JP2005299542A
    • 2005-10-27
    • JP2004118013
    • 2004-04-13
    • Mitsubishi Heavy Ind LtdOsaka Gas Co LtdToho 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
    • FUJIWAKA TAKAONAKAI SHUNSAKUITO YOSHIHARUTAKAHASHI YOSHIHIROSHIMODA HIROMIOGAWA MASAKI
    • F02B3/06F02B19/10F02D19/02F02D19/08F02D19/10F02D41/02F02D41/34F02D45/00F02M21/02
    • Y02T10/125Y02T10/32
    • 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
    • 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
    • Indirect injection type internal combustion engine
    • 间接喷射式内燃机
    • JP2005273492A
    • 2005-10-06
    • JP2004085254
    • 2004-03-23
    • Mitsubishi Heavy Ind LtdOsaka Gas Co LtdToho 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
    • TATSUMI KATSUHIKOOGAWA MASAKIFUJIWAKA TAKAONAKAI SHUNSAKUYONEZAWA RIKIDO
    • F02P13/00F01P3/16F02B7/06F02B19/10F02B19/16F02B43/04F02D19/02F02D19/08F02F1/24F02F1/36
    • Y02T10/125Y02T10/32
    • 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
    • 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
    • 6. 发明专利
    • Engine
    • 发动机
    • JP2008063999A
    • 2008-03-21
    • JP2006241696
    • 2006-09-06
    • Mitsubishi Heavy Ind LtdOsaka Gas Co Ltd三菱重工業株式会社大阪瓦斯株式会社
    • TANAKA DAIKINAKAI SHUNSAKUITO SEIICHIYAMADA SATORUTAKAHASHI JUNODA YUJI
    • F02D19/02F02B23/08F02B31/00F02M21/04
    • Y02T10/125Y02T10/146Y02T10/32
    • PROBLEM TO BE SOLVED: To execute a suitable homogeneous combustion operation according to an operating condition while realizing a good balance of high efficiency and stable combustion, smoothly warm up an engine while maintaining a stable combustion condition at a cool operation time such as a starting time, and execute a proper operation corresponding to an engine load at a warm operation time in an engine, in which a shade distribution of fuel/air mixture is formed in an intake path.
      SOLUTION: This engine comprises mixture distance extension means 11 capable of extending a mixture distance in an intake path 8, and intake fluidization reinforcing means 15 capable of reinforcing fluidization of the intake air. The engine also comprises control mean 30 for controlling the engine to switch between a long mixture homogeneous combustion operation for hemogeneously burning fuel/air mixture M in a combustion chamber 1 by actuating the mixture distance extension means 11 without actuating the intake fluidization reinforcing means 15 to extend the mixture distance, and a short mixture homogeneous combustion operation for hemogeneously burning the fuel/air mixture M in the combustion chamber 1 by actuating the intake fluidization reinforcing means 15 without actuating the mixture distance extension means 11 to reinforce the intake fluidization.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了在实现高效率和稳定燃烧的良好平衡的同时,根据操作条件执行适当的均匀燃烧操作,平稳地预热发动机,同时在冷运行时间保持稳定的燃烧条件,例如 开始时间,并且在发动机中在暖机运转时对应于发动机负荷执行适当的操作,其中在进气通道中形成燃料/空气混合物的阴影分布。 解决方案:该发动机包括能够延伸进气道8中的混合距离的混合距离延伸装置11和能够增强进气的流化的进气流化增强装置15。 发动机还包括控制装置30,用于控制发动机在用于通过致动混合物距离延伸装置11而不致动进气流化强化装置15的燃烧室1内燃烧燃料/空气混合物M的燃料混合均匀燃烧操作之间切换 延长混合物距离,以及短时间的混合均质燃烧操作,用于通过致动进气流化加强装置15来使燃烧室1中的燃料/空气混合物M进行血液燃烧,而不致动混合物距离延伸装置11以加强进气流化。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Intake device of gas engine
    • 燃气发动机装置
    • JP2007224834A
    • 2007-09-06
    • JP2006047789
    • 2006-02-24
    • Mitsubishi Heavy Ind LtdOsaka Gas Co Ltd三菱重工業株式会社大阪瓦斯株式会社
    • YAMADA SATORUODA YUJIENDO HIROYUKIIMAMICHI AKIRANAKAI SHUNSAKUTANAKA DAIKIITO SEIICHI
    • F02M21/02F02M35/10
    • Y02T10/32
    • PROBLEM TO BE SOLVED: To provide an intake device of a gas engine which improves the thermal efficiency of the engine by reducing the pump loss of intake in a partial load operation, and can improve startability by an extremely simple and inexpensive structure in the gas engine where fuel gas and an air mixture generated by a gas mixer is fed into a cylinder of the engine via a throttle valve.
      SOLUTION: The fuel gas and air mixture generated by the gas mixer is fed into the cylinder of the engine passing through the throttle valve to control the flow rate of the mixture disposed in an intake passage via a suction manifold and a suction valve. An air intake passage volume (V) from the throttle valve outlet to the suction valve of the suction passage is formed so that a ratio (V/Vh) of the suction passage volume (V) to a stroke volume (Vh) of the engine is 1.3 or higher (V/Vh≥1.3).
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种燃气发动机的进气装置,其通过减少部分负荷运转中的泵的吸入损失来提高发动机的热效率,并且可以通过非常简单和便宜的结构来提高启动性 其中燃气和通过气体混合器产生的空气混合物的燃气发动机经由节流阀被供给到发动机的气缸中。 解决方案:通过气体混合器产生的燃料气体和空气混合物被供给到通过节流阀的发动机的气缸中,以通过吸入歧管和吸入阀来控制配置在进气通道中的混合物的流量 。 形成从吸入通道的节流阀出口到吸入阀的吸气通道容积(V),使得吸入通道容积(V)与发动机的行程容积(Vh)的比(V / Vh) 为1.3以上(V /Vh≥1.3)。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Indirect injection type internal combustion engine provided with high-frequency heating device
    • 使用高频加热装置的间接喷射式内燃机
    • JP2005273494A
    • 2005-10-06
    • JP2004085256
    • 2004-03-23
    • Mitsubishi Heavy Ind LtdOsaka Gas Co LtdToho 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
    • TATSUMI KATSUHIKOOGAWA MASAKIFUJIWAKA TAKAONAKAI SHUNSAKUYONEZAWA RIKIDOISHIBASHI KOJI
    • F02B19/16F02B19/14
    • Y02T10/125
    • 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
    • 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
    • 10. 发明专利
    • Engine combustion control system
    • 发动机燃烧控制系统
    • JP2013029094A
    • 2013-02-07
    • JP2011167629
    • 2011-07-29
    • Osaka Gas Co Ltd大阪瓦斯株式会社Yanmar Co Ltdヤンマー株式会社
    • ISHIDA HIROAKINAKAI SHUNSAKUMURAI NORIMICHINAKAZONO TORUOTSUBO HIROYUKI
    • F02D41/04F02D45/00
    • PROBLEM TO BE SOLVED: To suppress decrease in capability of a ternary catalyst as much as possible during transition from a stoichiometric combustion mode to a lean combustion mode.SOLUTION: This engine combustion control system comprises: an air-fuel ratio adjusting means; a ternary catalyst; an oxygen concentration sensor; an excess air ratio estimation calculation part estimating an excess air ratio on the basis of a detection signal from the oxygen concentration sensor; and a fuel mode switching part switching a combustion mode of an engine between a stoichiometric combustion mode maintaining the excess air ratio in a stoichiometric range, a lean combustion mode maintaining the excess air ratio in a lean range, and a stoichiometric-lean combustion mode maintaining the excess air ratio in a stoichiometric-lean range causing the excess air ratio centering around a position shifted to a lean side and positioned at a stoichiometric side rather than the lean range. The combustion by the stoichiometric-lean combustion mode is performed before the transition from the stoichiometric combustion mode to the lean combustion mode.
    • 要解决的问题:在从化学计量燃烧模式向稀燃燃烧模式转变期间尽可能地抑制三元催化剂的能力降低。 解决方案:该发动机燃烧控制系统包括:空燃比调节装置; 三元催化剂; 氧浓度传感器; 过量空气比估计运算部,根据来自氧浓度传感器的检测信号来估计过量空气比; 以及燃料模式切换部分,其将发动机的燃烧模式切换为在理论空燃比范围内保持过量空气比的化学计量燃烧模式,保持稀空燃比范围内的过剩空气比的稀燃燃烧模式和维持 化学计量比稀薄范围内的过剩空气比,导致过量空气比以位于偏移侧的位置为中心,并位于化学计量侧而不是贫气范围。 在从化学计量燃烧模式向稀燃燃烧模式转变之前,进行理论稀燃燃烧模式的燃烧。 版权所有(C)2013,JPO&INPIT