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    • 1. 发明申请
    • DEVICE FOR MEASURING THE IONIZATION CURRENT IN A RADIOFREQUENCY IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    • 用于测量内燃机的射频点火系统中的离子化电流的装置
    • WO2009060149A3
    • 2009-07-23
    • PCT/FR2008051776
    • 2008-10-01
    • RENAULT SAAGNERAY ANDREDELORAINE FRANCK
    • AGNERAY ANDREDELORAINE FRANCK
    • F02P17/12F02P23/04
    • F02P9/007F02P3/0407F02P17/12F02P23/045F02P2017/125G01M15/11
    • The invention relates to a radiofrequency ignition device for an internal combustion engine, comprising: a supply circuit (2), comprising a transformer (T), a secondary winding (LN) of which is connected to a resonator (1) comprising two electrodes which are able to generate a spark so as to initiate combustion in a cylinder of the engine upon an ignition command, a measurement capacitor (CMES), connected in series between the secondary winding of the transformer and the resonator, and - a measurement circuit (10) for measuring the ionization current (IION) of the combustion gases, connected to said measurement capacitor and comprising a voltage generator with low input impedance, able to provide a polarization voltage (VPOLAR) of the measurement capacitor so as to generate the ionization current, first means (M1, RA, RB) for amplifying the ionization current and means (RS) for measuring a voltage (VS) representative of the amplified ionization current and connected at the output of the first amplifying means.
    • 用于内燃机的射频点火装置技术领域本发明涉及一种用于内燃机的射频点火装置,包括:包括变压器(T)的供电电路(2),其次级绕组(LN)连接到包括两个电极的谐振器 能够产生火花以便通过串联连接在变压器的次级绕组与谐振器之间的点火命令,测量电容器(CMES)以及 - 测量电路(10 ),用于测量连接到所述测量电容器并包括具有低输入阻抗的电压发生器的燃烧气体的电离电流(IION),所述电压发生器能够提供测量电容器的极化电压(VPOLAR)以便产生电离电流, 用于放大电离电流的第一装置(M1,RA,RB)和用于测量表示放大的电离电流的电压(VS)并且在第 第一放大装置。
    • 2. 发明申请
    • OPTIMUM CONTROL OF THE RESONANT FREQUENCY OF A RESONATOR IN A RADIO FREQUENCY IGNITION SYSTEM
    • 射频点火系统谐振器谐振频率的最优控制
    • WO2008116991A3
    • 2008-12-11
    • PCT/FR2008050216
    • 2008-02-12
    • RENAULT SAAGNERAY ANDRECOUILLAUD JULIENJAFFREZIC XAVIER
    • AGNERAY ANDRECOUILLAUD JULIENJAFFREZIC XAVIER
    • F02P9/00F02P3/01F02P23/04
    • F02P9/007F02P3/01F02P23/04H05H1/46
    • The invention relates to a supply device for a radio frequency ignition system, comprising a supply circuit (2, 2') designed to provide a supply voltage to an output connected to a plasma generation resonator (1) at a frequency defined by a control signal (Vl) provided by a control device (5) for the supply circuit, characterised in that the control device comprises a receiver interface (52) for a determination request for the optimum control frequency, a receiver interface (51) for receiving signals measuring the voltage at the pins of a capacitor (Cb) in the supply circuit (2), a determination module (53) for the optimum control frequency, designed to provide successive different control frequencies for the supply circuit for successive ignition commands on reception of a request and to determine an optimum control frequency based on received measured signals.
    • 本发明涉及一种用于射频点火系统的供电装置,该供电装置包括供电电路(2,2'),该供电电路被设计成以在由控制信号所限定的频率下向连接到等离子体生成谐振器(1)的输出提供电源电压 (5)提供用于供电电路的信号(V1),其特征在于,所述控制装置包括用于确定最佳控制频率的确定请求的接收器接口(52),用于接收测量所述信号的接收器接口(51) 在供电电路(2)中的电容器(Cb)的引脚处的电压,用于最佳控制频率的确定模块(53),其被设计为在接收到请求时为供电电路提供用于连续点火命令的连续不同的控制频率 并基于接收到的测量信号确定最佳控制频率。
    • 4. 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。
    • 5. 发明申请
    • CONTROL OF A PLURALITY OF PLUG COILS VIA A SINGLE POWER STAGE
    • 通过单个电源阶段控制多个插头线圈
    • WO2008113956A3
    • 2008-11-06
    • PCT/FR2008050311
    • 2008-02-25
    • RENAULT SAAGNERAY ANDRENOUVEL CLEMENTJAFFREZIC XAVIER
    • AGNERAY ANDRENOUVEL CLEMENTJAFFREZIC XAVIER
    • F02P9/00F02P17/12F02P23/04
    • F02P9/007F02D2400/22F02P23/045
    • The invention relates to a plasma generating device characterised in that it comprises: a supply circuit (2) including a switch (M) controlled by a control signal (V1) for applying an intermediate voltage (Vinter) on an output of the control circuit at a frequency defined by the control signal; a plurality of plasma-generating plug coils (BB1, BB2, BB3, BB4) arranged in parallel on said output via connectors (20), each connector being adapted to be removably connected to a corresponding plug coil and including means (23) adapted for offsetting the resonance frequency of said plug coil so that each plug coil has a distinct resonance frequency; a control device (5) of the supply circuit, that determines the control frequency from the resonance frequencies of the plug coils in order to selectively control the plug coils according to the control frequency used.
    • 本发明涉及一种等离子体产生装置,其特征在于它包括:一个供电电路(2),它包括由控制信号(V1)控制的开关(M),用于在控制电路的输出上施加中间电压(Vinter) 由控制信号定义的频率; 多个等离子体产生插头线圈(BB1,BB2,BB3,BB4)通过连接器(20)并联布置在所述输出端上,每个连接器适于可移除地连接到相应的插头线圈,并且包括适于 抵消所述插塞线圈的谐振频率,使得每个插头线圈具有不同的谐振频率; 所述供电电路的控制装置(5)根据所述插头线圈的谐振频率确定控制频率,以便根据所使用的控制频率选择性地控制所述插头线圈。