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    • 3. 发明授权
    • Hydraulic valve lift device
    • 液压升降装置
    • US4347812A
    • 1982-09-07
    • US034186
    • 1979-04-27
    • Tooru KosudaMichihiro OhashiYasuhiro TakeuchiTadahide TodaNoboru MatsubaraMasaaki Takizawa
    • Tooru KosudaMichihiro OhashiYasuhiro TakeuchiTadahide TodaNoboru MatsubaraMasaaki Takizawa
    • F01L1/245F01L1/24
    • F01L1/245
    • A hydraulic valve lift device for transmitting the motion of a cam to a push rod of an intake or exhaust valve of an engine, including a housing, a lifter slidably engaged by the housing and provided therein with an oil pressure chamber adapted to receive an oil, and a plunger provided with a flange portion and slidable in relation to the lifter. The flange portion of the plunger and cylindrical bore of the housing cooperate with each other to define therebetween a braking chamber into which oil is introduced. The device has a slit through which the oil in the braking chamber is relieved to the outside. The arrangement is such that the rate of oil relieved through the braking chamber is reduced as the plunger is lowered. The device further includes a relief valve for maintaining the pressure in the braking chamber below a predetermined pressure level.
    • 一种用于将凸轮的运动传递到发动机的进气门或排气门的推杆的液压气门提升装置,所述推动杆包括壳体,由所述壳体可滑动地接合并在其中设置有适于容纳油的油压室的升降器 以及设置有凸缘部分并且可相对于升降机滑动的柱塞。 柱塞的凸缘部分和壳体的圆柱孔相互配合,以在其间限定引入油的制动室。 该装置具有狭缝,制动室中的油通过狭缝释放到外部。 这样一来,随着柱塞的降低,通过制动室释放的油的速度降低。 该装置还包括用于将制动室中的压力保持在预定压力水平以下的安全阀。
    • 4. 发明授权
    • Fuel injection system for an internal combustion engine
    • 内燃机燃油喷射系统
    • US4200074A
    • 1980-04-29
    • US907620
    • 1978-05-19
    • Tooru KosudaMichihiro OhashiHiromi Katou
    • Tooru KosudaMichihiro OhashiHiromi Katou
    • F02D3/00F02M69/14F02M41/04
    • F02M69/147
    • A fuel injection system for an internal combustion engine has an air sensor for metering the intake air flow into the engine and a fuel metering and distributing device hydraulically coupled together. The device includes a plunger rotated by the engine to distribute fuel to respective fuel injectors and axially moved in response to variation in the intake air flow rate to meter the fuel. The axial displacement of the plunger is determined by two opposing hydraulic pressures acting on the opposite ends of the plunger, one of which is varied in accordance with the engine intake air flow rate as detected by the air sensor while the other hydraulic pressure is changed in accordance with the axial displacement of the plunger. Since no mechanical linkage is required between the air sensor and the fuel metering and distributing device, the system can easily be installed in a limited space and, in addition, assure an improvement in the accuracy of the fuel control.
    • 用于内燃机的燃料喷射系统具有用于计量进入发动机的进气流量的空气传感器和液压耦合在一起的燃料计量和分配装置。 该装置包括由发动机旋转的柱塞,以将燃料分配到相应的燃料喷射器并且响应于进气流量的变化而轴向移动以计量燃料。 柱塞的轴向位移由作用在柱塞的相对端上的两个相反的液压决定,其中一个液压根据由空气传感器检测到的发动机进气流量而变化,而另一个液压变化 根据柱塞的轴向位移。 由于在空气传感器和燃料计量分配装置之间不需要机械联动,所以系统可以容易地安装在有限的空间中,并且还确保提高燃料控制的精度。