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    DURCHFLUSSBEGRENZER
    2.
    发明公开
    DURCHFLUSSBEGRENZER 有权
    流

    公开(公告)号：EP2210157A1

    公开(公告)日：2010-07-28

    申请号：EP08849495.0

    申请日：2008-11-13

    申请人： Belimo Holding AG

    发明人： KELLER, Urs ,  KÜHNE, Jörg ,  PULLI, Pino

    IPC分类号： G05D7/01

    CPC分类号： G05D7/0113 ,  Y10T137/0379 ,  Y10T137/7792 ,  Y10T137/7837 ,  Y10T137/7869

    摘要： The invention relates to a flow restrictor (1) for restricting a volume flow through a liquid line, said flow restrictor comprising a support (10) having a passage and a bent flat spring (11) attached to the support (10). The flat spring (11) comprises at least one spring tab (12) and the passage at least one opening (13), the spring tab (12) and the opening (13) having a substantially identical extension along a longitudinal direction. The spring tab (12) is designed and arranged above the opening (13) in such a manner that it increasingly rests against the support (10) with increasing differential pressure, thereby gradually making the opening (13) smaller and continuously reducing the passage within a defined pressure range. The dimensions of the opening (13) are adjusted corresponding to the size of the spring tab (12), thereby allowing a compact flow restrictor (1) which is less susceptible to dirt. The continuous reduction of the passage allows an increase in vibration resistance of the flow restrictor (1).

    DURCHFLUSSBEGRENZER
    4.
    发明公开
    DURCHFLUSSBEGRENZER 有权
    流

    公开(公告)号：EP2454641A1

    公开(公告)日：2012-05-23

    申请号：EP10734896.3

    申请日：2010-07-14

    申请人： Belimo Holding AG

    发明人： KELLER, Urs ,  KÜHNE, Jörg

    IPC分类号： G05D7/01

    CPC分类号： G05D7/012 ,  Y10T137/0379

    摘要： The invention relates to a flow limiter (1) for limiting a volumetric flow through a liquid line, comprising a carrier (101) having a passage and a flat spring (11) attached to the carrier (10'). The flat spring (11) comprises at least one spring tongue (27') and the passage comprises at least one opening (23'), wherein the spring tongue (27') is designed and arranged above the opening (23') in such a way that the spring tongue increasingly lies against the carrier (10') as the differential pressure rises and in the process reduces the opening (23') and continuously reduces the passage within a defined pressure range. A body is arranged upstream of the spring tongue in such a way or the spring tongue (27') is oriented in the flow direction (r) in such a way that the spring tongue (27') offers a direct contact surface to a substantially reduced flow cross-section. Thus the spring tongue (27') is deflected, or rather rested against the carrier (10'), to a lesser extent at low differential pressure values so that at a low differential pressure, a constant volumetric flow rate is achieved and thus an expanded operating range having a constant volumetric flow rate is achieved.