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    • 3. 发明授权
    • Fuel injection device for diesel engines
    • 柴油发动机燃油喷射装置
    • US5156132A
    • 1992-10-20
    • US508712
    • 1990-04-16
    • Takashi Iwanaga
    • Takashi Iwanaga
    • F02B3/06F02M45/08F02M47/02
    • F02M45/08F02M47/027F02B3/06
    • A Diesel fuel injection device has a pressure accumulation piping for accumualting a fuel at a high pressure and an injector for injecting the fuel supplied by the pressure accumulating piping. The injector including a nozzle needle operative to open and close an injection orifice and a three-way solenoid valve operative to control the fuel pressure acting on the nozzle needle. The three-way solenoid valve is controlled to actuate the nozzle needle and to cause the fuel in the pressure accumulation piping to be injected through the injection orifice. A control valve is provided to control the injection rate characteristic to provide a boot-type injection characteristic. A boot type invention characteristic that is defined by a first characteristic in which the injection rate is substantially constant for a predetermined time period, a subsequent second characteristic in which the injection rate is gradually increased from the first characteristic, and a subsequent third characteristic in which the injection rate is suddenly decreased from the second characteristic; whereby operation noise is be reduced.
    • 8. 发明授权
    • Valve
    • US5125575A
    • 1992-06-30
    • US762268
    • 1991-09-20
    • Takashi Iwanaga
    • Takashi Iwanaga
    • F02M51/06F02M47/00F02M47/02
    • F02M47/027
    • A valve having a first valve body including a first contacting surface, a pressurized fluid supply path opening to the first contacting surface and a pressure-controlled chamber opening to the first contacting surface. A second valve body includes a second contacting surface contacting with the first contacting surface and a valve path whose ends open to the second contact surface, and which connects fluidly the pressurized fluid supply path to the pressure-controlled chamber. A valve is arranged in the second valve body and moved to a closed or open position at which the valve means does or does not cut off the fluidal connection between the pressurized fluid supply path and the pressure-controlled chamber. An actuator arranged on the second valve body moves the valve to the closed or opened position. A first drawing means presses the first contacting surface and the second contacting surface against each other. A second drawing means sets the actuator on the second valve body. The force of the first drawing means is not applied to the actuator and therefore the operation of the actuator is not disturbed by the force pressing the first contacting surface and the second contacting surface against each other. Also, the actuator can be removed from the valve without dissembling the first and second valve bodies.
    • 一种具有第一阀体的阀,包括第一接触表面,通向第一接触表面的加压流体供应通道和通向第一接触表面的压力控制室。 第二阀体包括与第一接触表面接触的第二接触表面和其端部朝向第二接触表面开口并且将加压流体供应路径流体地连接到压力控制室的阀路径。 阀被布置在第二阀体中并且移动到闭合或打开位置,在该位置阀装置确实或不切断加压流体供应路径和压力控制室之间的流体连接。 布置在第二阀体上的致动器将阀移动到关闭或打开位置。 第一拉丝装置将第一接触表面和第二接触表面相互压迫。 第二拉伸装置将致动器设置在第二阀体上。 第一拉伸装置的力不施加到致动器,因此致动器的操作不会受到第一接触表面和第二接触表面相互压迫的力的干扰。 此外,致动器可以从阀门移除,而不会拆卸第一和第二阀体。
    • 10. 发明授权
    • Accumulator fuel injection apparatus
    • 蓄能器燃油喷射装置
    • US5472142A
    • 1995-12-05
    • US323226
    • 1994-10-14
    • Takashi Iwanaga
    • Takashi Iwanaga
    • F02B3/06F02M45/08F02M47/02F02M45/02
    • F02M47/027F02M45/083F02B3/06
    • An accumulator fuel injection apparatus in which a nozzle element is divided into a first nozzle having one end side of said nozzle element and a second nozzle having the other end side of the nozzle element. The accumulator fuel injection apparatus comprises a stopper for setting a maximum movement position of the first nozzle toward the second nozzle, a second pressure control chamber communicating with a first pressure control chamber and forming a predetermined space or interval through which the first nozzle and the second nozzle are spaced away from each other under a condition that the first nozzle is arranged at the maximum movement position, and delay apparatus for delaying reduction of pressure within the first pressure control chamber due to the fact that fluid flows into a low-pressure chamber from the first pressure control chamber upon communication of the first pressure control chamber and the low-pressure chamber with each other. It is possible to easily perform operation of setting an amount of pre-lift of the nozzle needle which decides an injection rate, and operation of assembling constitutional elements thereof.
    • 一种蓄能器燃料喷射装置,其中喷嘴元件被分成具有所述喷嘴元件的一端侧的第一喷嘴和具有所述喷嘴元件的另一端侧的第二喷嘴。 蓄能器燃料喷射装置包括用于将第一喷嘴朝向第二喷嘴的最大运动位置设置的止动件,与第一压力控制室连通并形成预定空间或间隔的第二压力控制室,第一喷嘴和第二喷嘴 喷嘴在第一喷嘴布置在最大移动位置的条件下彼此间隔开;以及延迟装置,用于延迟第一压力控制室内的压力降低,这是由于流体从低压室流入低压室 所述第一压力控制室在所述第一压力控制室和所述低压室彼此连通时。 能够容易地进行决定喷射速度的喷嘴针的预升程量的设定以及组合构成要素的动作。