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    SCHALLDÄMPFER MIT EINEM NEBENSCHLUSSRESONATOR
    4.
    发明公开
    SCHALLDÄMPFER MIT EINEM NEBENSCHLUSSRESONATOR 有权
    WITH A并联谐振器消声器

    公开(公告)号：EP1051562A1

    公开(公告)日：2000-11-15

    申请号：EP98963457.1

    申请日：1998-11-14

    申请人： FILTERWERK MANN & HUMMEL GmbH

    发明人： ALEX, Matthias ,  FÜSSER, Rolf

    IPC分类号： F01N1/02

    CPC分类号： F01N1/006 ,  F01N1/02 ,  F01N1/023 ,  F01N2490/155 ,  F01N2490/20 ,  G10K11/172

    摘要： The invention relates to a silencer with a shunt resonator. Said shunt resonator (10) is formed by an outer housing volume which encompasses the sound-conducting channel (1) in a predetermined area. The sound-conducting channel (1) is connected to the shunt resonator (10) by openings (6). The openings in the sound-conducting channel (1) consist of tubular elements (6), preferably in a moulded part (5), extending from the sound-conducting channel (1) into the housing volume of the shunt resonator (10).

    LUFTDURCHSTRÖMUNGSVORRICHTUNG
    5.
    发明公开
    LUFTDURCHSTRÖMUNGSVORRICHTUNG 失效
    空气流量按器件

    公开(公告)号：EP0902862A1

    公开(公告)日：1999-03-24

    申请号：EP97923040.0

    申请日：1997-05-09

    申请人： FILTERWERK MANN & HUMMEL GMBH

    发明人： FÜSSER, Rolf

    IPC分类号： F02M27 ,  F02B27 ,  F02M35

    CPC分类号： F02M35/1222 ,  F02B27/006 ,  F02B27/0215 ,  F02B27/0231 ,  F02B27/0273 ,  F02M35/1227 ,  Y02T10/146

    摘要： The invention relates to an airflow device in which there are adjusters in the flow path to alter the flow geometry of the air. The total cross-section of the flow path is divided into individual flow channels (15, 16, 17) or tube sections (1, 3, 4) one inside the other and there are means or adjusters (13, 14) by means of which the flow paths in the individual flow channels (15, 16, 17; 1, 3, 4) can be controlled. In a preferred embodiment there are three flow channels (15, 16, 17), the ends of which are connected to an internal aperture (22 to 27) in the adjusters (13, 14).

    VERFAHREN UND VORRICHTUNG ZUR AKTIVEN BEEINFLUSSUNG DES ANSAUGGERÄUSCHES EINER BRENNKRAFTMASCHINE
    6.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR AKTIVEN BEEINFLUSSUNG DES ANSAUGGERÄUSCHES EINER BRENNKRAFTMASCHINE 审中-公开
    方法和设备的积极影响进气噪声内燃机

    公开(公告)号：EP1221158A1

    公开(公告)日：2002-07-10

    申请号：EP00962457.8

    申请日：2000-09-08

    申请人： FILTERWERK MANN+HUMMEL GMBH

    发明人： FÜSSER, Rolf ,  PRICKEN, Franc ,  SCHIRMACHER, Rolf

    IPC分类号： G10K11/178

    CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/3014

    摘要： A method and a device for actively influencing the intake noise of an internal combustion engine are disclosed. The device for carrying out said method comprises a controller (7), which records the actual noise value (I) by means of a microphone (16) and compares said actual noise value with a set noise signal, which is dependent upon engine speed (D). Further parameters (P) may also be measured, such as, for example, the position of the throttle (12). A comparison signal is generated by comparing the actual noise value and the set noise value. Said comparison signal influences a control signal (Ages)which is also dependent upon the speed of the internal combustion engine. The control signal (Ages) is fed to a loudspeaker (14) which generates a correcting noise (20). Said correcting noise (20) is superimposed on the intake noise (21) to generate the actual noise value (22). The actual noise value should correspond as closely as possible to the set noise value. In this manner, it is not only possible to reduce the level of intake noise, but also to tailor the intake noise to a desired set sound. Similarly, the intake noise can be freely shaped, within the limits of the loudspeaker output, whereby the driver of the vehicle can be given an acoustic feedback, for example under specified operating conditions.

    EINRICHTUNG ZUR DÄMMUNG VON GERÄUSCHABSORBIERENDEN ELEMENTEN
    9.
    发明公开
    EINRICHTUNG ZUR DÄMMUNG VON GERÄUSCHABSORBIERENDEN ELEMENTEN 失效
    设备绝缘噪声吸收部件

    公开(公告)号：EP0862686A1

    公开(公告)日：1998-09-09

    申请号：EP96928448.0

    申请日：1996-08-10

    申请人： FILTERWERK MANN & HUMMEL GmbH

    发明人： FÜSSER, Rolf

    IPC分类号： F02B77

    CPC分类号： F02B77/13

    摘要： Described is an acoustic-insulation device using sound-absorbing elements, in particular for internal-combustion engines. The invention calls for the engine to be surrounded by an enclosure fitted with sound-absorbing elements. Labyrinth-forming elements are also fitted. In addition, absorption material of varying thickness is fitted along the path travelled by the sound.