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    • 3. 发明专利
    • Fuel supply device for internal combustion engine
    • 用于内燃机的燃油供应装置
    • JP2003083179A
    • 2003-03-19
    • JP2001279629
    • 2001-09-14
    • Aisan Ind Co LtdNippon Soken IncToyota Motor Corpトヨタ自動車株式会社愛三工業株式会社株式会社日本自動車部品総合研究所
    • KOMODA TAKAOSATO TORUYAMADA JUN
    • F02M21/02F02M33/08F02M37/00
    • Y02T10/123Y02T10/32
    • PROBLEM TO BE SOLVED: To provide a fuel supply device for an internal combustion engine capable of achieving the simultaneous pursue of the elimination of vapor near a fuel injection valve and the inhibition of the rise of a temperature of the fuel in a tank.
      SOLUTION: In this fuel supply device for the internal combustion engine, the fuel stored in the fuel tank 21 is press-fed to a fuel injecting mechanism 25 by a fuel pump 22, and the press-fed fuel is injected and supplied to the internal combustion engine 10 through the fuel injecting mechanism 25. This fuel supply device is provided with a bypass passage R4 for communicating the upstream of the fuel injecting mechanism 25 to a main reflux passage R2, a communication passage R3 for communicating the downstream side of the fuel injection mechanism 25 to the main reflux passage R2, and an auxiliary fuel passage R5 having a restrictor 28 on the way. One of the communication passage R3 and the bypass passage R4 is activated to be selectively communicated to the main reflux passage R2 by a switch valve 26. A certain amount of the press-fed is refluxed to the fuel tank 21 through the auxiliary fuel passage R5 even when the bypass passage R4 is activated.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种能够实现同时追求燃料喷射阀附近的蒸气的消除内燃机的燃料供给装置,并抑制燃料在罐中的温度上升。 解决方案:在这种用于内燃机的燃料供给装置中,储存在燃料箱21中的燃料通过燃料泵22被压送到燃料喷射机构25,并将加压燃料喷射并供给到内部燃料 内燃机10通过燃料喷射机构25.该燃料供给装置设置有用于将燃料喷射机构25的上游连通到主回流通道R2的旁通通道R4,用于连通燃料的下游侧的连通通道 喷射机构25到主回流通道R2,以及在途中具有限流器28的辅助燃料通道R5。 连通通道R3和旁通通道R4中的一个被启动以通过开关阀26选择性地连通到主回流通道R2。一定量的加压进料通过辅助燃料通道R5回流到燃料箱21 即使旁路通路R4被激活。
    • 4. 发明专利
    • Fuel feeding device of internal combustion engine for liquefied petroleum gas
    • 用于液化石油气的内燃机燃油送料装置
    • JP2003020998A
    • 2003-01-24
    • JP2001203595
    • 2001-07-04
    • Aisan Ind Co LtdNippon Soken IncToyota Motor Corpトヨタ自動車株式会社愛三工業株式会社株式会社日本自動車部品総合研究所
    • KOMODA TAKAOSATO TORUYAMADA JUN
    • F02M21/02F02M33/08F02M37/00F02M55/02
    • Y02T10/123Y02T10/32
    • PROBLEM TO BE SOLVED: To provide a fuel feeding device of an internal combustion engine for liquefied petroleum gas capable of assuring always stable attenuation effects on the pulsation of the fuel pressure even when the fuel pressure largely varies, and capable of preventing variation of the injection quantity and generation of noise caused by the pulsation.
      SOLUTION: In the fuel feeding device of the internal combustion engine for liquefied petroleum gas, the liquefied petroleum gas inside a fuel tank liquefied with pressure is fed to a delivery pipe 34, and pressed with a constant differential pressure relative to the fuel tank pressure to be injected by an injector 38. The fuel feeding device has a pulsation attenuator 50 for attenuating the pulsation of the fuel fed to the delivery pipe 34. The pressure of a return passage 37 is guided into a second pressure chamber 53 of the pulsation attenuator 50 from the junction A through a passage 59, so that the pressure difference between both sides of a diaphragm 51 is kept nearly constant. Therefore, even when the fuel pressure applied to a pressure chamber 52 largely varies, the diaphragm 51 is moved according to the variation and the pulsation of the fuel pressure is stably attenuated.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种用于液化石油气的内燃机的燃料供给装置,即使当燃料压力大幅变化时,也能够确保对燃料压力的脉动始终稳定的衰减效果,并且能够防止喷射的变化 数量和产生由脉动引起的噪音。 解决方案:在用于液化石油气的内燃机的燃料供给装置中,在压力液化的燃料箱内的液化石油气被输送到输送管34,并相对于燃料箱压力以恒定的压差压力 由喷射器38喷射。燃料供给装置具有用于衰减供给到输送管34的燃料的脉动的脉动衰减器50.返回通道37的压力被引导到脉动衰减器50的第二压力室53中 从连接点A通过通道59,使得隔膜51的两侧之间的压力差保持几乎恒定。 因此,即使当施加到压力室52的燃料压力大幅度变化时,隔膜51根据变化而移动,并且燃料压力的脉动稳定地衰减。
    • 7. 发明专利
    • Fuel supply device for internal combustion engine
    • 用于内燃机的燃油供应装置
    • JP2014020343A
    • 2014-02-03
    • JP2012162713
    • 2012-07-23
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社Aisan Ind Co Ltd愛三工業株式会社
    • KOSUGE HIDEAKIYAMADA JUNKOJIMA SUSUMUSUGIMOTO TOMOJIROSHIMIZU RIOTANAKA HITOSHINAKAGAWA SHUIKETANI MASANORI
    • F02M21/06F02D45/00F02M37/00F02M37/22
    • Y02T10/123Y02T10/32
    • PROBLEM TO BE SOLVED: To estimate an amount of liquid fuel in a vaporized fuel supply system to prevent a pressure in the vaporized fuel supply system from being over a set pressure due to vaporization of the liquid fuel in the vaporized fuel supply system during the stop of an engine, in a fuel supply device of an internal combustion engine including the vaporized fuel supply system having a vaporizer for vaporizing a liquefied fuel and supplying the same to a cylinder, a vaporized fuel injection valve for injecting the vaporized fuel, and a vaporized fuel pipe between the vaporizer and the vaporized fuel injection valve.SOLUTION: A weight of the liquid fuel in the vaporized fuel supply system in the current engine stop is estimated by subtracting a weight of vaporized fuel injected from a vaporized fuel injection valve 26 from the current engine start to the current engine stop, and a weight of vaporized fuel remaining in the vaporized fuel supply system in the current engine stop, from a weight of liquefied fuel supplied to the vaporized fuel supply systems 60, 63 from the current engine start to the current engine stop.
    • 要解决的问题:估计汽化燃料供应系统中的液体燃料的量,以防止汽化燃料供应系统中的压力由于在停止期间汽化燃料供应系统中的液体燃料的蒸发而超过设定压力 发动机的燃料供给装置,包括具有用于蒸发液化燃料并将其供给到气缸的蒸发器的蒸发燃料供给系统的内燃机的燃料供给装置,用于喷射汽化燃料的汽化燃料喷射阀,以及汽化的 蒸发器和蒸发的燃料喷射阀之间的燃料管。解决方案:通过从蒸发燃料喷射阀26喷射的蒸发燃料喷射阀26中的汽化燃料的重量来估计当前发动机停止中的汽化燃料供应系统中的液体燃料的重量 当前发动机开始到目前的发动机停止,并且当前发动机停止在汽化燃料供给系统中残留的蒸发燃料的重量停止,f 将从燃料供应系统60,63供应的液化燃料的重量从当前的发动机起动到现在的发动机停止。
    • 8. 发明专利
    • Air/fuel ratio control device for internal combustion engine for liquefied petroleum gas
    • 用于液化石油气的内燃机用空燃比比控制装置
    • JP2003035181A
    • 2003-02-07
    • JP2001221504
    • 2001-07-23
    • Aisan Ind Co LtdNippon Soken IncToyota Motor Corpトヨタ自動車株式会社愛三工業株式会社株式会社日本自動車部品総合研究所
    • KOMODA TAKAOSATO TORUYAMADA JUN
    • F02M21/02F02D19/02F02D41/02F02D41/04F02D41/34F02D45/00
    • Y02T10/32
    • PROBLEM TO BE SOLVED: To provide an air/fuel ratio control device for an internal combustion engine for liquefied petroleum gas, whereby a stable air/fuel ratio is obtained, without being affected by the temperature of an injector metering zone which changes due to various operation conditions.
      SOLUTION: An evaporative cooling amount DTf from a delivery pipe to each injector metering zone is calculated based on a rotation speed Ne and a load referring to a map (step S106), and the temperature of the metering zone is estimated, by using the evaporative cooling amount DTf and the fuel temperature Tf of the delivery pipe (step S108). A fuel density correction coefficient KTinj is calculated, by using the above estimated value Tinj referring to the map (step S110), and a basic injection time TAU of each injector is corrected, based on the above correction coefficient KTinj (step S112). Thereby, even if the fuel density in each injector metering zone is changed with temperature, a fuel injection amount in the same injection time can be prevented from changing.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种用于液化石油气的内燃机的空燃比控制装置,由此获得稳定的空燃比,而不受由于各种变化而改变的喷射计量区的温度的影响 操作条件。 解决方案:根据转速Ne和参照地图的载荷计算从输送管到每个喷射计量区域的蒸发冷却量DTf(步骤S106),并且通过使用蒸发器来计算计量区域的温度 冷却量DTf和输送管的燃料温度Tf(步骤S108)。 基于上述校正系数KTinj,通过使用上述估计值Tinj参照地图计算燃料密度校正系数KTinj(步骤S110),校正每个喷射器的基本喷射时间TAU(步骤S112)。 因此,即使各喷射计量区域的燃料密度随着温度而变化,也能够防止喷射时间相同的燃料喷射量发生变化。
    • 10. 发明专利
    • Actuator with rotation/linear motion conversion mechanism
    • 具有旋转/线性运动转换机构的执行器
    • JP2013183531A
    • 2013-09-12
    • JP2012045692
    • 2012-03-01
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社
    • OTSUBO MAKOTOYAMADA JUNHIOKA HIDEKAZU
    • H02K7/06F16H25/20H02K5/173
    • PROBLEM TO BE SOLVED: To provide an actuator with rotation/linear motion conversion mechanism configured to prevent a nut from being rotated by vibration during transportation without increasing rotational resistance of the nut when a variable valve mechanism is driven.SOLUTION: One or both of an outer circumferential surface 16a of a nut 16 and an inner circumferential surface 10c of an inner race 10b of a bearing 10 is subjected to frictional coefficient reduction treatment, to reduce rotational force to be generated in the nut 16 due to vibration. Even if vibration is applied to the actuator during transportation before embedded in an internal combustion engine, the rotation of the nut 16 is prevented. A change in stroke of a sun shaft can be reliably prevented in the actuator, thereby maintaining excellent assemblability with respect to the internal combustion engine without reducing assembling accuracy. The frictional coefficient reduction treatment does not increase frictional force between a housing 4 and the nut 16, thereby preventing an increase in rotational resistance when the nut 16 is driven by an electric motor, then preventing reduction in fuel economy of the internal combustion engine.
    • 要解决的问题:提供具有旋转/线性运动转换机构的致动器,其构造成在运输期间防止螺母被振动旋转,同时在增加可变气门机构的驱动时螺母的旋转阻力的增加。解决方案:一个或两个 螺母16的外周面16a和轴承10的内圈10b的内周面10c经受摩擦系数降低处理,以减少由于振动而在螺母16中产生的旋转力。 即使在嵌入内燃机中之前在运输过程中对致动器施加振动,也能够防止螺母16的转动。 在致动器中可以可靠地防止太阳轴的行程变化,从而在不降低组装精度的情况下保持相对于内燃机的优异的组装性。 摩擦系数降低处理不会增加壳体4和螺母16之间的摩擦力,从而防止当电动机驱动螺母16时的旋转阻力的增加,从而防止内燃机的燃料经济性降低。