公开(公告)号：US3732888A

公开(公告)日：1973-05-15

申请号：US3732888D

申请日：1972-03-10

Applicant: PRONAL SA

Inventor： CONVAIN M ,  MERESSE P

IPC: F15B15/10 ,  F24F11/04 ,  G05D7/03

CPC classification number: F15B15/10 ,  F24F11/745 ,  Y10T137/7764 ,  Y10T137/7789

Abstract: A closing device for a pneumatic system comprising an inflatable bag having a closing face co-operable with an annular seat defining an aperture which is connected to the pneumatic system by passage means. The bag has an orifice which conduit means puts in communication with the interior of the passage means so that pressure variations in the passage means inflate or deflate the bag so that the closing face closes or unmasks the annular seat. The bag consists of two fluidtight sheets interconnected along their peripheries and means are provided inside the bag to ensure that the two sheets are always spaced apart in the region of the orifice. The device can be employed in combination with the inlet of fluid-flow generating means to control the fluid flow through the inlet.

Abstract translation: 一种用于气动系统的关闭装置，包括一个可充气袋，该充气袋具有可与环形座相配合的闭合面，所述闭合面用于限定通过通道装置与气动系统相连的孔。 该袋具有孔口，该管道装置与通道装置的内部连通，使得通道中的压力变化装置使袋膨胀或放气，使得封闭面闭合或揭开环形座。 该袋由沿其周边互连的两个流体密封片组成，并且装置设置在袋内，以确保两个片材在孔口的区域中始终间隔开。