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    • 1. 发明申请
    • FLUID INJECTION DEVICE
    • 流体注射装置
    • WO2008152314A3
    • 2009-02-12
    • PCT/FR2008050950
    • 2008-05-29
    • RENAULT SAAGNERAY ANDREMALEK NADIMPARIENTE MARCLEVIN LAURENT
    • AGNERAY ANDREMALEK NADIMPARIENTE MARCLEVIN LAURENT
    • F02M45/10F02M61/08
    • F02M45/10F02M61/08F02M69/041F02M2200/21
    • The invention relates to an injector comprising a nozzle that includes an opening and a seat, a needle movably mounted in the nozzle and having an end defining a valve in a contact area with the seat, a means for vibrating the valve, a first acoustic-impedance breaking area at a first distance from the valve along the nozzle, and another first acoustic-impedance breaking area at a second distance from the valve along the needle. According to the invention, each of the first and second distances is such that the respective propagation time of acoustic waves along said distance is: Ti = ni *[?/2], where r\\ is a positive integer coefficient different from zero with i = 3 for the first distance and i = 4 for the second distance, ? being a period of the vibrations.
    • 本发明涉及一种喷射器,其包括:喷嘴,其包括开口和座;可移动地安装在所述喷嘴中并且具有限定与所述座接触区域中的阀的端部的针,用于使所述阀振动的装置, 沿着喷嘴距离阀的第一距离处的阻抗断开区域,以及沿着针头距离阀的第二距离处的另一个第一声阻抗断开区域。 根据本发明,第一和第二距离中的每一个使得声波沿着所述距离的相应传播时间为:Ti = ni * [λ/ 2],其中r 1是不为零的正整数系数, i = 3为第一距离,i = 4为第二距离,? 是一个振荡的时期。
    • 3. 发明申请
    • FLUID INJECTION DEVICE
    • 流体注射装置
    • WO2009007595A2
    • 2009-01-15
    • PCT/FR2008051146
    • 2008-06-25
    • RENAULT SAAGNERAY ANDREMALEK NADIMLEVIN LAURENTPARIENTE MARC
    • AGNERAY ANDREMALEK NADIMLEVIN LAURENTPARIENTE MARC
    • F02M45/10F02M61/08F02M61/10F02M61/16
    • F02M45/10F02M61/08F02M69/041F02M2200/21
    • The invention relates to an injector including a needle mounted in a nozzle and having an end defining a valve, the needle being connected at the other end to an actuator including first, second and third portions, the first and third portions being provided on either side of the second portion, the three portions being tightened together in order to form a block having two axially opposite limits, the first portion being connected with the needle at one of said limits, and an excitation means for vibrating the second portion according to setpoint period t. According to the invention, the length between the two limits of the block is such that the propagation time T of the acoustic waves generated by the vibrations of the second portion of the actuator and running along that length meets the equation: T = n*[t/2], where n is an integer positive multiplication coefficient different from zero.
    • 本发明涉及一种注射器,其包括安装在喷嘴中并具有限定阀的端部的针,该针在另一端连接到包括第一,第二和第三部分的致动器,第一和第三部分设置在两侧 所述第三部分被紧固在一起以形成具有两个轴向相对限制的块,所述第一部分在所述限制中的一个限制下与所述针连接;以及激励装置,用于根据设定周期振动所述第二部分 吨。 根据本发明,块的两个极限之间的长度使得由致动器的第二部分的振动产生的声波的传播时间T沿着该长度满足以下等式:T = n * [ t / 2],其中n是不同于零的整数正乘法系数。