Bourdon tube for protection against excess pressure in pressure gauges
    1.
    发明公开
    Bourdon tube for protection against excess pressure in pressure gauges 失效
    Drucksensor mit Bourdonrohr zum Schutz gegenÜberdruck

    公开(公告)号:EP0818672A1

    公开(公告)日:1998-01-14

    申请号:EP97500121.5

    申请日:1997-07-09

    申请人: Aldiso, S.L.

    IPC分类号: G01L7/04

    摘要: It defines an enclosure inside which a fluid under pressure circulates, causing the deformation of said tube (4) and consequently the displacement of the pointer needle (5) of the pressure gauge (1); the wall (8) of the tube is provided with at least one portion (7) of smaller thickness.
    In case of excess pressure, the Bourdon tube breaks at this weaker portion. The pressure discharged into the inner section of the housing is therefore also lower and its effects are more easily controllable.

    摘要翻译: 它限定了一个外壳,其中压力下的流体循环,导致所述管(4)的变形,从而导致压力表(1)的指针针(5)的位移; 管的壁(8)设置有至少一个较小厚度的部分(7)。 在过压的情况下,波登管在这个较弱的部分断裂。 因此,排出到壳体内部的压力也较低,其效果更容易控制。