DEVICE AND METHOD FOR BLOCKING A LIQUID FLOW IN ONE DIRECTION
    12.
    发明公开
    DEVICE AND METHOD FOR BLOCKING A LIQUID FLOW IN ONE DIRECTION 失效
    装置和用于VERFAHERN流体流动的在某种意义上阻断

    公开(公告)号:EP0717822A1

    公开(公告)日:1996-06-26

    申请号:EP94926876.0

    申请日:1994-08-24

    IPC分类号: F16K15

    摘要: A device for blocking a liquid flow through a pipe in one direction, said device being provided with a substantially spherical valve body, which can closingly cooperate with a substantially annular valve seat, which is positioned substantially transversely to the liquid flow. Means are provided for guiding said valve body in a path between a position in which said valve body is positioned near or against said valve seat (closed position) and a position in which the valve body is spaced from the valve seat by some distance (open position). In its open position said valve body can be positioned almost entirely outside the liquid flow. Means can be provided for effecting a reduction of the liquid pressure within the valve casing, at the side of the valve body remote from the valve seat.

    REFRIGERATION SYSTEM EXPANSION DEVICE
    15.
    发明公开
    REFRIGERATION SYSTEM EXPANSION DEVICE 失效
    AUSDEHNANORDNUNG用于冷却系统。

    公开(公告)号:EP0377670A1

    公开(公告)日:1990-07-18

    申请号:EP88908865.0

    申请日:1988-09-09

    IPC分类号: F25B41

    摘要: Un dispositif d'expansion pour un système de réfrigération comprend un logement (21) ayant des orifices opposés (22, 23) séparés l'un de l'autre par un siège de soupape interne (30) du logement (21). Le logement contient un piston mobile (44) ayant une première surface extrême (45) adaptée pour venir s'appuyer contre un siège de soupape (30) et la fermer lorsque le piston (44) se trouve dans une première position, et une seconde surface extrême (46) venant s'appuyer contre un épaulement annulaire (40) lorsque le piston (44) se trouve dans une seconde position. Le piston (44) possède un passage traversant (47) permettant de relier les orifices opposés (22, 23) d'une manière restreinte lorsque le piston (44) se trouve dans sa première position, et une surface périphérique externe (49) ayant une pluralité de rainures (48) permettant de relier les orifices opposés (22, 23) d'une manière sensiblement non restreinte lorsque le piston (44) se trouve dans sa seconde position. Le piston (44) comprend un élément en une seule pièce en matériau polymère, la première surface extrême (45) du piston (44) comprenant une section sensiblement hémisphérique (50).

    RÜCKFLUSSVERHINDERER
    18.
    发明授权

    公开(公告)号:EP1629226B1

    公开(公告)日:2007-02-21

    申请号:EP04765653.3

    申请日:2004-09-22

    申请人: Neoperl GmbH

    发明人: FANGMEIER, Martin

    IPC分类号: F16K15/06

    摘要: The invention relates to a backflow preventer (1) comprising a valve member (6) in the interior (5) of the insertable housing (2) thereof. Said valve member (6) sealingly rests against a valve seat (7) in the closed position thereof while being movable from the closed position thereof into the open position thereof counter to a restoring force. The interior (5) of the housing is provided with an interior section (A) which has an interior cross section that is larger than the outer circumference of the valve member in the movement zone of the valve member (6). The aim of the invention is to prevent undesired noise from developing as a result of the valve member (6) vibrating on the inner circumference of the housing also when the quantity of penetrating medium is low. Said aim is achieved by providing at least the movement zone of the backflow preventer (1), which is located near the valve seat (7), with an elastic valve member guide (9) that is effective between the valve member (6) and the interior housing wall surrounding the interior section (A) so as to guide the valve member (6) free from play.

    Rückschlagventil
    19.
    发明公开
    Rückschlagventil 有权
    止回阀

    公开(公告)号:EP1319878A3

    公开(公告)日:2003-11-05

    申请号:EP02027007.0

    申请日:2002-12-03

    申请人: Hebmüller, Axel

    发明人: Hebmüller, Axel

    IPC分类号: F16K15/02

    摘要: Die Erfindung betrifft ein Rückschlagventil mit einem Ventilgehäuse (2) einem Ventilteller (18), der in dem Ventilgehäuse (2) in vertikaler Richtung zwischen einer Öffnungsstellung und einer Schließstellung, in der Dichtungsflächen (19A, 19B) am Ventilteller (18) und Ventilsitz (20) dichtend in Anlage kommen, bewegbar ist. Das Rückschlagventil ist dadurch gekennzeichnet, daß der Ventilteller (18) ausgehend von seiner Führungsfläche (21) unter Bildung einer geneigten Mantelfläche (18A) einen in Richtung des Ventilsitzes (20) kleiner werdenden Durchmesser besitzt, und daß die Durchflußöffnungen (22) in dem Ventilteller (18) von der geneigten Mantelfläche (18A) ausgehen und in der von der Dichtungsfläche (19A) weg weisenden Richtung schräg aufeinander zu laufen und gleichmäßig über den Umfang des Ventiltellers (18) verteilt angeordnet sind. Die Erfindung betrifft weiterhin einen Ventilteller (18) für den Einsatz in einem solchen Rückschlagventil.

    摘要翻译: 本发明涉及在打开位置和闭合位置,其中在所述阀板的密封面(19A,19B)(18)和阀座之间具有在垂直方向上的阀壳体(2)的阀盘(18)(在阀壳体(2)的单向阀 20)密封地接触,是可移动的。 单向阀的特征在于,所述阀板(18)从它的引导面(21)起始,以形成圆周倾斜表面(18A)具有降低的直径在所述阀座的方向(20),并且,在阀盘的流动开口(22) (18A)从倾斜的侧表面(18A)开始并沿远离密封表面(19A)的方向倾斜地延伸并且均匀地分布在阀盘(18)的圆周上。 本发明还涉及用于这种止回阀中的阀板(18)。