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    • 32. 发明授权
    • Fuel injector
    • 喷油器
    • US4997132A
    • 1991-03-05
    • US414746
    • 1989-09-27
    • Yoshihisa Yamamoto
    • Yoshihisa Yamamoto
    • F02M45/00F02M45/08F02M45/12F02M47/00F02M47/02F02M47/06F02M61/10F02M61/20
    • F02M61/205F02M45/08F02M45/12
    • A fuel injector for injecting fuel into a combustion chamber of internal combustion engine with an injection flow rate that changes during an injection cycle. It provides a gradual increase in fuel injection rate near the beginning of the cycle and a substantially instantaneous shut off of fuel injection at the end of the cycle. The valve includes a nozzle body with a fuel inlet and a nozzle portion which has an injection port therein, a first fuel passage for communicating the injection port with the fuel inlet, a first slidable needle valve element, a first spring for urging the first needle valve element to close the first needle valve element, a second fuel passage for communicating a back pressure chamber with the fuel inlet, an ON-OFF valve for opening and closing the second fuel passage and throttling the effective area thereof when the second fuel passage is open thereby controlling the pressure of the first back pressure chamber means.
    • 一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器,其具有在喷射循环期间改变的喷射流量。 它在循环开始附近提供燃料喷射率的逐渐增加,并且在循环结束时基本上瞬间关闭燃料喷射。 该阀包括具有燃料入口的喷嘴主体和在其中具有喷射口的喷嘴部分,用于使喷射口与燃料入口连通的第一燃料通道,第一可滑动针阀元件,用于推动第一针 阀元件以关闭第一针阀元件,用于使后压室与燃料入口连通的第二燃料通道,用于打开和关闭第二燃料通道并且当第二燃料通道为有效区域时节流其有效区域的开关阀 打开,从而控制第一背压室装置的压力。
    • 34. 发明授权
    • Fuel injection system for internal combustion engine
    • 内燃机燃油喷射系统
    • US4184459A
    • 1980-01-22
    • US882151
    • 1978-02-28
    • Yoshiya IshiiHidetoshi DohshitaYoshihisa YamamotoHiroshi Okazaki
    • Yoshiya IshiiHidetoshi DohshitaYoshihisa YamamotoHiroshi Okazaki
    • F02M47/00F02M59/10F02B3/00F02M51/00
    • F02M59/105
    • A fuel injection system for an internal combustion engine of the type so-called unit injector wherein the overflow of fuel under high pressure from a plunger chamber defines the fuel injection cut-off. In order to perform the sharp cut-off, an overflow passage is increased in cross sectional area, and in order to prevent the overflow from the plunger chamber while the fuel is being charged into it, a flow control means such as a spool type directional control valve is inserted into the overflow passage so that when the fuel is being charged into the plunger chamber the communication between the overflow passage and a fuel tank may be positively interrupted. In addition, in order to prevent the fuel recharge with the resulting secondary injection, a flow control means such as a solenoid operated directional control valve is inserted into a fuel supply line communicating between a fuel delivery source and the plunger chamber such that as long as the fuel injection continues or when the fuel injection is zto be completed, the communication between the plunger chamber and the fuel delivery source may be completely cut off.
    • 一种用于所谓单元喷射器的内燃机的燃料喷射系统,其中来自柱塞室的高压下的燃料溢出限定了燃料喷射截止。 为了进行锐利的切断,溢流通路的横截面面积增大,为了防止在燃料装入其中时从柱塞室溢出的流量控制装置,例如卷轴型方向 控制阀被插入到溢流通道中,使得当燃料被充入柱塞室时,溢流通道和燃料箱之间的连通可被肯定地中断。 此外,为了防止所得到的二次注入的燃料再充电,诸如电磁操作方向控制阀之类的流量控制装置被插入到燃料供给管线之间,该燃料供应管线在燃料输送源和柱塞室之间连通,使得只要 燃料喷射继续或当燃料喷射z完成时,柱塞室和燃料输送源之间的连通可以被完全切断。
    • 40. 发明授权
    • Fluid transmission device
    • 流体传动装置
    • US07284645B2
    • 2007-10-23
    • US11157158
    • 2005-06-21
    • Yoshihisa YamamotoTokuji YoshimotoAkira Kitajima
    • Yoshihisa YamamotoTokuji YoshimotoAkira Kitajima
    • F16H41/24
    • F16H45/02F16H41/28F16H2041/243F16H2045/0294
    • In a fluid transmission device, a male fitting surface of a periphery of a diameter-expanded portion of a pump shell is fitted to a female fitting surface of an inner circumference of a peripheral wall portion of a cylindrical transmission cover, and a fillet weld being is formed between an end surface of the peripheral wall portion and a peripheral surface of the diameter-expanded portion along an entire circumference, thereby connecting together the pump shell and the transmission cover. An annular recess is formed in an inner circumferential surface of the peripheral wall portion to adjoin the female fitting surface on the side opposite from the fillet weld. A portion of the transmission cover corresponding to the recess constitutes an annular thin-walled portion which has a thickness smaller than the portions of the transmission cover along the opposite sides of the annular thin wall portion. Therefore, even if the diameters of the pump shell and the transmission cover are increased, the durability of the pump shell and the transmission cover can be improved by alleviating excessive stress concentration on the fillet weld between the pump shell and the transmission cover.
    • 在流体传动装置中,泵壳的直径扩大部分的周边的阳配合表面装配到圆柱形传动罩的周壁部分的内圆周的阴配合表面上,并且角焊 沿圆周方向形成在周壁部的端面与直径扩大部的周面之间,由此将泵壳与变速器罩连接起来。 在周壁部的内周面形成有环状的凹部,以与与内角焊缝相反一侧的阴配合面相邻。 对应于凹部的传动罩的一部分构成环形薄壁部分,该环形薄壁部分的厚度小于沿着环形薄壁部分的相对侧的变速箱盖部分的厚度。 因此,即使泵壳和变速箱盖的直径增大,也可以通过减轻泵壳与变速箱盖之间的角焊缝上的过度的应力集中来提高泵壳和变速器盖的耐久性。