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    • 62. 发明授权
    • Fuel delivery pipe
    • 燃油输送管
    • US07721714B2
    • 2010-05-25
    • US11703952
    • 2007-02-08
    • Masayoshi UsuiEiji WatanabeHikari TsuchiyaYoshiyuki SerizawaKazuteru MizunoKoichi HayashiTetsuo Ogata
    • Masayoshi UsuiEiji WatanabeHikari TsuchiyaYoshiyuki SerizawaKazuteru MizunoKoichi HayashiTetsuo Ogata
    • F02M59/46
    • F02M69/465F02M55/025F02M2200/315
    • A fuel delivery pipe capable of reducing a pressure pulsation at the time of a fuel injection due to injection nozzles, preventing vibrations and noises at an underfloor pipe arrangement, and turning down a radiate sound from the fuel delivery pipe, wherein a flexible absorbing wall surface 10 formed on a wall surface of a fuel delivery body 1 is loosened due to internal pressure changes to render internal volume of the fuel delivery body 1 increasable, αL/√{square root over ( )}V determined by sonic speed αL of fuel flowing through the fuel delivery body 1 and the internal volume V of the fuel delivery body 1 is set as 20×103(m−0.5·sec−1)≦αL/√{square root over ( )}V≦85×103(m−0.5·sec−1) while a ratio αL/αH of equivalent sonic speed αH in a high frequency area to the sonic speed αL of the fuel is set as αL/αH≦0.7, and the cross section shape in a perpendicular direction to an axis of the fuel delivery body 1 is formed in a substantially double side concaved shape, a substantially flask shape, a substantially trapezoid shape, a substantially key shape, and a substantially goggles shape.
    • 一种燃料输送管,其能够降低由于喷射喷嘴引起的燃料喷射时的压力脉动,防止了地板下的管道装置的振动和噪声,并且降低了来自燃料输送管的辐射声,其中柔性吸收壁表面 在燃料输送体1的壁面上形成的燃料流10由于内部压力变化而松动,使得燃料输送体1的内部体积增加,αL/√{平方根超过()} V由燃料流的声速αL确定 通过燃料输送体1和燃料输送体1的内部容积V被设定为20×103(m-0.5·sec-1)≦̸αL/√{平方根超过()} V≦̸ 85×103( m-0.5·sec-1),而高频区域中的等效声速αH与燃料的声速αL的比αL/αH被设定为αL/αH≦̸ 0.7,垂直方向的截面形状 燃料输送体1的轴线形成在基本上为双面的c侧 基本上为梯形,基本上为键形,基本上为护目镜形状。
    • 63. 发明申请
    • Connection Head Structure of High Pressure Fuel Injection Tube
    • 高压燃油喷射管连接头结构
    • US20090151701A1
    • 2009-06-18
    • US12335663
    • 2008-12-16
    • Nobuo KatoKoichi HayashiShoichiro Usui
    • Nobuo KatoKoichi HayashiShoichiro Usui
    • F02M61/16
    • F02M55/02F02M55/005F02M2200/80F16L19/0286
    • A connection head structure of a high pressure fuel injection tube is provided to avoid an interference between an annular flange and an opposing part by sufficiently maintaining an tube axial direction length of the connection head and to obtain a good sealability to prevent leaking during autofrettage processing with a high pressure of not less than 300 MPa. A connection head structure of a high pressure fuel injection tube includes, on a connection end portion of a thick walled fine steel tube, a spherical seat face, an annular flange, and a circular conic face that continuously extends from the seat face, wherein a washer and a fastening nut are assembled, characterized in that when a thick walled fine steel tube has t (wall thickness)/D (outer diameter)
    • 提供高压燃料喷射管的连接头结构,以通过充分保持连接头的管轴向长度来避免环形凸缘和相对部分之间的干涉,并且获得良好的密封性,以防止在自紧摩擦加工期间的泄漏, 高压不小于300MPa。 高压燃料喷射管的连接头结构在厚壁细钢管的连接端部上包括从座面连续延伸的球面座面,环形凸缘和圆锥面,其中, 垫圈和紧固螺母组装,其特征在于,当厚壁细钢管的t(壁厚)/ D(外径)<0.3时,从连接头端到背面的管轴方向距离L1 环形凸缘为0.38D〜0.7D,座面的球体半径R为0.45〜0.65D,环形凸缘的外径D1为1.2D〜1.4D,其中,内周面 连接头包括两级锥形面,其具有沿着管的管轴方向的横截面轮廓,朝向管的孔扩大。
    • 68. 发明授权
    • Oscillator and production method therefor
    • 振荡器及其制作方法
    • US06690246B2
    • 2004-02-10
    • US10189125
    • 2002-07-03
    • Masahiko KimuraAkira AndoTakuya SawadaKoichi Hayashi
    • Masahiko KimuraAkira AndoTakuya SawadaKoichi Hayashi
    • H03B532
    • H03B5/36
    • A feedback circuit and amplifiers using a vibrator comprising a piezoelectric body having a bismuth layered compound as the main ingredient thereof are provided so as to generate oscillation. Load capacitors comprising the feedback circuit together with the vibrator are formed. These load capacitors each have, as the main ingredient thereof, a dielectric body which decreases in the relative dielectric constant with the increase in temperature in the region not less than one half the temperature range from −20 to 80° C., and in which the &egr;-TC is not less than 5000 ppm/° C., wherein the &egr;-TC is an average change rate of the relative dielectric constant in the above-described temperature range and is represented by (Cmax−Cmin)/(C20·100), where Cmax is the maximum value of capacitance in the above-described temperature range, Cmin is the minimum value of capacitance in the above-described temperature range, and C20 is the capacitance at 20° C.
    • 使用包括具有铋层状化合物作为其主要成分的压电体的振动器的反馈电路和放大器被设置成产生振荡。 形成包括反馈电路的负载电容器与振子。 这些负载电容器作为其主要成分,其绝缘体的相对介电常数随着温度的升高而降低,该温度范围不低于-20至80℃的温度范围的一半,其中 ε-TC不小于5000ppm /℃,其中ε-TC是在上述温度范围内的相对介电常数的平均变化率,由(Cmax-Cmin)/(C20)表示。 100),其中Cmax是上述温度范围内电容的最大值,Cmin是上述温度范围内电容的最小值,C20是20℃时的电容。