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    • 1. 发明专利
    • Gas supply device of gas engine and the gas engine equipped with the gas supply device
    • 燃气发动机的气体供应装置和配备气体供应装置的气体发动机
    • JP2011021616A
    • 2011-02-03
    • JP2010248870
    • 2010-11-05
    • Mitsubishi Heavy Ind LtdResearch Institute Of Innovative Technology For The Earth三菱重工業株式会社財団法人地球環境産業技術研究機構
    • IDA TOKUAKIITO KUNINORI
    • F02B37/00F01N5/04
    • Y02T10/144Y02T10/16
    • PROBLEM TO BE SOLVED: To reduce energy loss for fuel gas compression by eliminating the need for a gas compressor dedicated for fuel gas compression. SOLUTION: In a gas engine, an exhaust turbocharger includes a fuel gas supercharger equipped with a fuel gas compressor for compressing the fuel gas and a first turbine for driving the fuel gas compressor by energy of exhaust gas, and an air supercharger equipped with an air compressor for compressing air and a second turbine for driving the air compressor by the energy of the exhaust gas. The fuel gas compressed by the fuel gas supercharger and the air compressed by the air supercharger are mixed, and the mixture is supplied to respective cylinders. The first turbine of the fuel gas supercharger and the second turbine of the air supercharger are connected in series to an exhaust passage. Exhaust gas generated after driving either the first turbine or the second turbine is used for driving the other turbine, or the first turbine and the second turbine are unified. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过消除专用于燃料气体压缩的气体压缩机的需要来减少燃料气体压缩的能量损失。 解决方案:在燃气发动机中,排气涡轮增压器包括配备有用于压缩燃料气体的燃料气体压缩机的燃料气体增压器和用于通过废气能量驱动燃料气体压缩机的第一涡轮机和装备有空气增压器 具有用于压缩空气的空气压缩机和用于通过废气的能量驱动空气压缩机的第二涡轮机。 由燃料气体增压器压缩的燃料气体和由空气增压器压缩的空气混合,并将混合物供应到各个气缸。 燃料气体增压器的第一涡轮机和空气增压器的第二涡轮机与排气通道串联连接。 在驱动第一涡轮机或第二涡轮机之后产生的废气用于驱动另一个涡轮机,或者第一涡轮机和第二涡轮机是统一的。 版权所有(C)2011,JPO&INPIT
    • 2. 发明专利
    • Design support apparatus and computer program
    • 设计支持设备和计算机程序
    • JP2007188454A
    • 2007-07-26
    • JP2006008057
    • 2006-01-16
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • SATO NOBUAKIITO KUNINORIKOSUGE KENICHI
    • G06F17/13G06F17/50
    • G06F17/13
    • PROBLEM TO BE SOLVED: To obtain a point of an allowable area which minimizes an approximation error, as a solution of the equation by algebraizing an equation of an unknown function and visualizing a partial area ("the allowable area") allowed by a boundary condition or the like. SOLUTION: A computer program for design support includes a first procedure of inputting an unknown function u, an initial condition, and the boundary condition, a second procedure of approximating the unknown function u by linear combinations of orthogonal bases, a third procedure of generating an algebraic equation having linear combination constants included in the linear combinations as roots, a fourth procedure of expressing the initial condition and the boundary condition by orthogonal bases to obtain one or more restrictive conditions, a fifth procedure of obtaining roots of the algebraic equation under a restrictive conditions, and a sixth procedure of deciding whether the roots minimize a square error of the algebraic equation or not. The roots are set as the solution of the equation if it is decided that the square error is minimum, and the computer program returns to the fifth procedure if it is decided that the square error is not minimum. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了获得最小化近似误差的容许区域的点,作为通过代数未知函数的方程式并使可视化部分区域(“允许区域”)可视化的等式的解的方案 边界条件等。 解决方案:用于设计支持的计算机程序包括输入未知函数u,初始条件和边界条件的第一过程,通过正交基的线性组合逼近未知函数u的第二过程,第三过程 产生具有线性组合中包含的线性组合常数的代数方程作为根,通过正交基表达初始条件和边界条件以获得一个或多个限制条件的第四过程,获得代数方程根的第五过程 在限制性条件下,以及决定根是否最小化代数方程的平方误差的第六个过程。 如果确定平方误差最小,则将根设置为方程的解,并且如果确定平方误差不是最小,则计算机程序返回到第五过程。 版权所有(C)2007,JPO&INPIT
    • 3. 发明专利
    • Method for determining crank arrangement angle for multiple cylinder reciprocating internal combustion engine
    • 确定多缸联动内燃机起重机安装角度的方法
    • JP2006258102A
    • 2006-09-28
    • JP2006077271
    • 2006-03-20
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • ITO KUNINORISATO NOBUAKI
    • F02B75/06F02B75/20F02B77/00F16F15/26
    • PROBLEM TO BE SOLVED: To provide a practical method for determining arrangement angles of crank throws minimizing unbalance couple of forces acting as exciting force in a multiple cylinder reciprocating internal combustion engine.
      SOLUTION: In this method for determining crank arrangement angles for a multiple cylinder reciprocating internal combustion engine expressing function of unbalance couple of forces expressed in a shape weighting unbalance force by distance of each cylinder with a dimensionless factor in a shape of an inner product of a vector and determining arrangement angle of the crank throw minimizing even number power of absolute value of a factor of the unbalance couple of forces in Cartesian coordinates under a restriction condition where the unbalance force function of the multiple cylinder reciprocating internal combustion engine is expressed by a dimensionless factor in a shape of an inner product of a vector and absolute value of factor of the unbalance force is set to a value allowed by surrounding environment of place where the internal combustion engine is installed or less.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于确定在多缸往复式内燃机中作为激励力的作用力的不平衡耦合的曲轴的布置角度的最小化的实用方法。 解决方案:在这种用于确定多缸往复式内燃机的曲轴配置角度的方法中,所述多缸往复式内燃机表现为以不同平衡力加权的不平衡力的函数,每个气缸的距离与内筒形状的无量纲因子 在多缸往复式内燃机的不平衡力函数的限制条件下,向量的乘积和确定曲轴转速的排列角度使笛卡尔坐标中不平衡力的因子的绝对值的偶数功率最小化 通过矢量的内积的形状和不平衡力的因子的绝对值的无量纲因子被设定为安装有内燃机的地方的周围环境允许的值。 版权所有(C)2006,JPO&NCIPI
    • 4. 发明专利
    • System and method for fuel-control of gas engine
    • 燃气发动机燃料控制系统与方法
    • JP2005069042A
    • 2005-03-17
    • JP2003296813
    • 2003-08-20
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • ITO KUNINORINAKAYAMA YOSHIHIROABE MICHIO
    • F02M21/02F02D19/02F02D41/02F02D41/34F02D45/00
    • Y02T10/32
    • PROBLEM TO BE SOLVED: To provide a system for fuel-control of a gas engine for enhancing a high thermal efficiency by controlling the amount of NOx-formation and increasing a compression ratio and an in-cylinder maximum pressure, while avoiding occurrence of a knock.
      SOLUTION: The fuel control system of a torch-ignition type gas-engine includes a pressurizing means for pressurizing a high-concentration fuel gas to a prescribed pressure, a gas-injector, and a controller. The gas-injector is placed on a main combustion-chamber, and provided with a gas-injection valve ejecting high concentration fuel-gas from the pressurizing means at a torch flame. The controller changes injection-timing for high-concentration fuel-gas in the gas-injection device on the basis of operation conditions of the gas engine.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于燃气发动机燃料控制的系统,以通过控制NOx形成量和增加压缩比和缸内最大压力来提高高热效率,同时避免发生 一个敲门声。 解决方案:火炬式燃气发动机的燃料控制系统包括用于将高浓度燃料气体加压至规定压力的加压装置,气体喷射器和控制器。 气体喷射器被放置在主燃烧室上,并且设置有气体喷射阀,其在火炬火焰下从加压装置喷射高浓度燃料气体。 基于燃气发动机的运转条件,控制器改变气体喷射装置中的高浓度燃料气体的喷射时间。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • Fuel injection device for internal combustion engine
    • 用于内燃机的燃油喷射装置
    • JP2003003929A
    • 2003-01-08
    • JP2001192781
    • 2001-06-26
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • IDA TOKUAKIMIHASHI MASATOITO KUNINORI
    • F02M61/10F02D41/20F02M47/00F02M51/06
    • PROBLEM TO BE SOLVED: To provide an accumulating fuel injection device for an internal combustion engine capable of holding fuel injection to achieve a higher output of the engine, lower fuel consumption and a less exhaust amount of NOx or black smoke and of improving the durability of a fuel injection valve by permitting the control of reducing the moving speed of a needle valve right before closing the needle valve for the fuel injection valve to prevent the malfunction of fuel injection following the impulsive seating of the needle valve and the wear of a seated portion of the needle valve.
      SOLUTION: The accumulator fuel injection device for the internal combustion engine comprises a pilot valve for controlling the displacement of the needle valve in accordance with a difference between operating oil pressure in a pilot oil chamber and fuel pressure in a needle valve chamber, pilot valve driving means for allowing the displacement thereof, and a pilot valve driving control device for outputting operation signals to the pilot valve driving means and controlling the pilot valve driving means to make the moving speed of the needle valve in the closing direction into a displacement mode for reducing the speed for a certain period before closing the needle valve.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:为了提供能够保持燃料喷射以实现发动机的更高输出,更低的燃料消耗和更少的NOx或黑烟排放量的内燃机的累积燃料喷射装置,并且提高耐久性 燃料喷射阀,其允许在关闭用于燃料喷射阀的针阀之前控制减小针阀的移动速度,以防止在针阀的冲击座位之后的燃料喷射的故障和就座部分的磨损 的针阀。 解决方案:用于内燃机的蓄能器燃料喷射装置包括用于根据先导油室中的工作油压与针阀室中的燃料压力之间的差异来控制针阀的位移的先导阀,先导阀驱动 用于允许其移动的装置,以及用于向先导阀驱动装置输出操作信号的先导阀驱动控制装置,并且控制先导阀驱动装置使针阀在关闭方向上的移动速度变为用于减小的位移模式 关闭针阀前一段时间的速度。
    • 6. 发明专利
    • Fuel injection device for internal combustion engine
    • 用于内燃机的燃油喷射装置
    • JP2003003924A
    • 2003-01-08
    • JP2001185605
    • 2001-06-19
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • IDA TOKUAKIMIHASHI MASATOITO KUNINORI
    • F02M47/00F02M47/02F02M53/00F02M55/02
    • PROBLEM TO BE SOLVED: To provide an accumulator fuel injection device for an internal combustion engine capable of highly precise fuel injection control to achieve higher output of the engine, lower fuel consumption and a less exhaust amount of NOx or black smoke by permitting the control of a needle valve moving speed for the fuel injection valve for fine control of a fuel injection mode and improved responsiveness and preventing the malfunction of fuel injection following the impulsive seating of a needle valve.
      SOLUTION: The accumulator fuel injection device for the internal combustion engine comprises a pilot valve for controlling the displacement of the needle valve in accordance with a difference between operating oil pressure in a pilot oil chamber and fuel pressure in a needle valve chamber, a magnetostrictive actuator for allowing the displacement thereof with the magneto striction of a magnetostrictive material arranged in a magnetic field, and a means for controlling the magnetostrictive actuator so that the pilot valve slightly opens an operating oil outlet during closing the needle valve when a seat portion of the needle valve is seated on a valve seat, wherein the magnetostrictive actuator is cooled with an operating oil.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种用于内燃机的蓄能器燃料喷射装置,其能够进行高精度的燃料喷射控制,以实现发动机的更高的输出,更低的燃料消耗和更少的NOx或黑烟的排放量,通过允许控制 用于燃料喷射阀的针阀移动速度,用于精确控制燃料喷射模式和改进的响应性,并防止在针阀的脉冲座位之后的燃料喷射的故障。 解决方案:用于内燃机的蓄能器燃料喷射装置包括用于根据先导油室中的工作油压与针阀室中的燃料压力之间的差异来控制针阀的位移的先导阀,磁致伸缩致动器 用于允许其以磁场中布置的磁致伸缩材料的磁致伸缩的位移,以及用于控制磁致伸缩致动器的装置,使得当关针时,先导阀在关闭针阀期间略微打开工作油出口 阀位于阀座上,其中磁致伸缩致动器用工作油冷却。
    • 7. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2008121545A
    • 2008-05-29
    • JP2006306051
    • 2006-11-10
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • SATO NOBUAKIKAWAI KAZUHIROITO KUNINORIIMAI CHISATOMITSUI SHOJI
    • F02M47/00F02M37/00F02M55/00F02M55/02
    • Y02T10/123
    • PROBLEM TO BE SOLVED: To provide a fuel injection device in which foreign matter is prevented from being caught in a needle valve sliding part and a needle valve actuation part to prevent occurrence of operational failure of a needle valve and a needle valve driving part, occurrence of resulting combustion failure, and generation of abrasion and seizure in the needle valve sliding part, even in an engine using fuel such as crude oil based fuel containing a large amount of foreign matter.
      SOLUTION: The fuel for the engine is divided into two systems including an operating fuel system to be supplied into an operating oil chamber as operating oil after solid foreign matter removing treatment, and a combustion fuel system to be supplied to a fuel reservoir. In a fuel injection valve, an operating fuel passage is provided in an upper part side of a needle valve bearing part, and a combustion fuel passage is provided in a lower part side of the needle valve bearing part. Pressure Pp in an operating fuel side of the needle valve bearing part is set larger than pressure Pf in a combustion fuel side (Pf>Pf).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种燃料喷射装置,其中防止异物被捕获在针阀滑动部分和针阀致动部分中,以防止针阀和针阀驱动的操作故障的发生 即使在使用含有大量异物的原油基燃料的发动机的发动机中,也可能发生燃烧失败的发生,以及针阀滑动部中的磨损发生。 解决方案:用于发动机的燃料被分为两个系统,包括在固体异物去除处理之后作为工作油供应到操作油室中的操作燃料系统和将被供应到燃料储存器的燃烧燃料系统 。 在燃料喷射阀中,在针阀轴承部的上部设有工作燃料通路,在针阀轴承部的下部侧设有燃烧燃料通路。 针阀轴承部的工作燃料侧的压力Pp被设定为大于燃烧燃料侧的压力Pf(Pf> Pf)。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Gas supply device and operation method for gas engine
    • 用于气体发动机的气体供应装置和操作方法
    • JP2006249954A
    • 2006-09-21
    • JP2005064671
    • 2005-03-08
    • Mitsubishi Heavy Ind LtdResearch Institute Of Innovative Technology For The Earth三菱重工業株式会社財団法人地球環境産業技術研究機構
    • YAMAMOTO TAKAYUKIANDO SUMINOSUKEITO KUNINORI
    • F02M21/04F02B37/00F02D19/02F02D41/02F02M21/02
    • Y02T10/144Y02T10/32
    • PROBLEM TO BE SOLVED: To provide a gas supply device of a gas engine capable of miniaturizing a gas compressor and reducing its capacity by eliminating possibility of explosion of fuel gas at an outlet of a supercharger completely and reducing power of the gas compressor for compressing fuel gas into an air supply passage per cylinder even when using low calorie gas (gas having low caloric value).
      SOLUTION: One part of fuel gas is mixed with air at an inlet of the supercharger and this air-fuel mixture is supplied into the supercharger. The other part of fuel gas is mixed with supply air in the air supply passage per cylinder and this air-fuel mixture is supplied into each cylinder of the engine. A supercharger side gas amount adjusting valve for adjusting flow rate of gas in a supercharger side gas supply passage and a cylinder side gas amount adjusting valve for adjusting flow rate of gas in each cylinder side gas supply passage are provided. A gas amount controller for controlling opening of the supercharger side gas amount adjusting valve and adjusting amount of fuel gas into the supercharger side gas supply passage to hold concentration of fuel gas in the air-fuel mixture supplied into the supercharger below flammable lower limit gas concentration is provided.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够使气体压缩机小型化并且通过消除增压器出口处的燃料气体爆炸的可能性而降低其容量的气体发动机的气体供给装置,并且降低气体压缩机的功率 即使在使用低卡路里气体(低热值气体)的情况下,也能将燃料气体压缩成气缸内的供气通路。

      解决方案:一部分燃料气体与增压器入口处的空气混合,并将该空气 - 燃料混合物供入增压器。 燃料气体的另一部分与每个气缸的供气通道中的供应空气混合,并且该空气 - 燃料混合物被供应到发动机的每个气缸中。 提供了一种用于调节增压器侧气体供给通道中的气体流量的增压器侧气体量调节阀和用于调节各气缸侧气体供给通路内的气体流量的气缸侧气体量调节阀。 一种气体量控制器,用于控制增压器侧气体量调节阀的开度,并将燃料气体的量调节到增压器侧气体供给通道中,以将供给到增压器中的空气燃料混合物中的燃料气体的浓度保持在可燃下限气体浓度以下 被提供。 版权所有(C)2006,JPO&NCIPI

    • 10. 发明专利
    • Gas supply device for gas engine
    • 燃气发动机气体供应装置
    • JP2006241979A
    • 2006-09-14
    • JP2005054287
    • 2005-02-28
    • Mitsubishi Heavy Ind LtdResearch Institute Of Innovative Technology For The Earth三菱重工業株式会社財団法人地球環境産業技術研究機構
    • IDA TOKUAKIITO KUNINORI
    • F02G5/02F01D17/00F02B37/007F02B37/013F02B37/02F02B37/12F02B37/18F02M21/02
    • F02B37/007F02B37/013F02B37/02F02B37/18Y02T10/144
    • PROBLEM TO BE SOLVED: To provide a gas supply device for a gas engine, for eliminating the need of a gas compressor dedicated for fuel gas compression to reduce energy loss for the fuel gas compression and for simplifying its structure, while gaseous fuel with low calorie content(gaseous fuel with low-calorific power) can be easily used and the possibility of explosion of fuel mixture at an outlet of a supercharger is eliminated. SOLUTION: An exhaust turbosupercharger of the gas engine, comprises: a supercharger for fuel gas having a fuel gas compressor compressing fuel gas and a first turbine driving the fuel gas compressor by energy of the exhaust gas; and a supercharger for air having an air compressor compressing air and a second turbine driving the air compressor by the energy of the exhaust gas. The compressed fuel gas from the supercharger for fuel gas and the compressed air from the supercharger for air are mixed, and then the mixture is supplied to each cylinder. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于燃气发动机的气体供应装置,用于消除专用于燃料气体压缩的气体压缩机的需要,以减少用于燃料气体压缩的能量损失并简化其结构,同时气态燃料 可以容易地使用低卡路里含量(具有低热量的气态燃料),并且消除了在增压器的出口处燃料混合物爆炸的可能性。 解决方案:一种燃气发动机的排气涡轮增压器,包括:用于燃料气体的增压器,具有压缩燃料气体的燃料气体压缩机和通过排气能量驱动燃料气体压缩机的第一涡轮机; 以及具有压缩空气的空气压缩机的空气增压器和通过排气的能量驱动空气压缩机的第二涡轮机。 来自用于燃料气体的增压器的压缩燃料气体和来自空气的增压器的压缩空气混合,然后将混合物供应到每个气缸。 版权所有(C)2006,JPO&NCIPI