Method and device for avoiding the deposition of soot on the insulating components of an electrostatic filter
    1.
    发明申请
    Method and device for avoiding the deposition of soot on the insulating components of an electrostatic filter 审中-公开
    用于避免烟尘沉积在静电过滤器的绝缘部件上的方法和装置

    公开(公告)号:US20050115410A1

    公开(公告)日:2005-06-02

    申请号:US10502375

    申请日:2003-01-24

    CPC classification number: B03C3/70

    Abstract: The invention relates to a method and device for avoiding the deposition of particles of soot (3) on the insulating components (2) in an electrostatic filter (1), which comprises the insulating components (2). The method comprises the method step of creating a repulsive electrostatic field (4) around said insulating components (2), by placing at least one repulsive electrode (8) in or on at least one of the insulating components (2) and applying an adequate voltage to the repulsive electrode (8). The voltage difference between the repulsive electrode (8) and the central electrode (6) and the voltage difference between the repulsive electrode (8) and the peripheral electrode (7) creates an electrical repulsive field (4), which repulses the particles of soot having an electrical charge. The formation of a conducting channel (5) on the surface of said insulating components (2) between the central electrode (6) and the peripheral electrode (7) can thus be avoided.

    Abstract translation: 本发明涉及一种用于避免烟尘(3)颗粒沉积在静电过滤器(1)中的绝缘部件(2)上的方法和装置,该静电过滤器包括绝缘部件(2)。 该方法包括通过将至少一个排斥电极(8)放置在绝缘部件(2)中的至少一个绝缘部件(2)中,或者至少一个绝缘部件(2)上并且施加足够的绝缘部件 到排斥电极(8)的电压。 排斥电极(8)与中心电极(6)之间的电压差与排斥电极(8)与周围电极(7)之间的电压差产生排斥电场(4),排斥烟尘颗粒 具有电荷。 因此可以避免在中心电极(6)和外围电极(7)之间的所述绝缘部件(2)的表面上形成导电通道(5)。

    Method and device for attenuating the noise generated at the outlet of an exhaust line
    2.
    发明授权
    Method and device for attenuating the noise generated at the outlet of an exhaust line 有权
    用于衰减在排气管出口处产生的噪声的方法和装置

    公开(公告)号:US07711124B2

    公开(公告)日:2010-05-04

    申请号:US10559934

    申请日:2004-06-09

    CPC classification number: F01N1/065

    Abstract: A method for attenuating the low-frequency noise generated at the outlet (18) of an exhaust line (14). A signal representing the noise to be attenuated is defined; a first high-frequency acoustic wave (F1) is emitted from a first transducer (22) into an attenuation region (26) of the exhaust line (14), the first acoustic wave having a carrier frequency higher than 50 kHz; and a second high-frequency acoustic wave (F1+Δfcb) is emitted by a second transducer (24) into the attenuation region (26) of the exhaust line, the second acoustic wave having the carrier frequency of the first high-frequency acoustic wave (F1) and containing a low-frequency counter-noise signal (Δfcb) which is out of phase with the signal representing the noise to be attenuated.

    Abstract translation: 一种用于衰减在排气管(14)的出口(18)处产生的低频噪声的方法。 定义表示要衰减的噪声的信号; 第一高频声波(F1)从第一换能器(22)发射到排气管线(14)的衰减区域(26),第一声波具有高于50kHz的载波频率; 并且第二高频声波(F1 +&Dgr; fcb)由第二换能器(24)发射到排气管线的衰减区域(26)中,第二声波具有第一高频 声波(F1)并且包含与表示要衰减的噪声的信号异相的低频反噪声信号(&Dgr; fcb)。

    Method and device for attenuating the noise generated at the outlet of an exhaust line
    3.
    发明申请
    Method and device for attenuating the noise generated at the outlet of an exhaust line 有权
    用于衰减在排气管出口处产生的噪声的方法和装置

    公开(公告)号:US20070071250A1

    公开(公告)日:2007-03-29

    申请号:US10559934

    申请日:2004-06-09

    CPC classification number: F01N1/065

    Abstract: A method for attenuating the low-frequency noise generated at the outlet (18) of an exhaust line (14). A signal representing the noise to be attenuated is defined; a first high-frequency acoustic wave (F1) is emitted from a first transducer (22) into an attenuation region (26) of the exhaust line (14), the first acoustic wave having a carrier frequency higher than 50 kHz; and a second high-frequency acoustic wave (F1+?fcb) is emitted by a second transducer (24) into the attenuation region (26) of the exhaust line, the second acoustic wave having the carrier frequency of the first high-frequency acoustic wave (F1) and containing a low-frequency counter-noise signal (?fcb) which is out of phase with the signal representing the noise to be attenuated.

    Abstract translation: 一种用于衰减在排气管(14)的出口(18)处产生的低频噪声的方法。 定义表示要衰减的噪声的信号; 第一高频声波(F 1)从第一换能器(22)发射到排气管线(14)的衰减区域(26),第一声波具有高于50kHz的载波频率; 并且由第二换能器(24)将第二高频声波(F 1 +αf c b N)发射到排气管线的衰减区域(26)中,第二声波具有 第一高频声波(F 1)的载波频率并且包含与表示要衰减的噪声的信号异相的低频反噪声信号(ΔfCb ) 。

Patent Agency Ranking