Vacuum generator
    12.
    发明公开
    Vacuum generator 有权
    真空发生器

    公开(公告)号:EP1348873A1

    公开(公告)日:2003-10-01

    申请号:EP03251610.6

    申请日:2003-03-17

    IPC分类号: F04F5/22 F04F5/52

    CPC分类号: F04F5/52 F04F5/22 F04F5/467

    摘要: A vacuum generator that is capable of quickly and securely holding and releasing a work piece and capable of reducing the amount of consuming compressed air comprises a first nozzle (18a) and a second nozzle (18b) which jet compressed air toward a diffuser nozzle (20), the second nozzle (18b) having a diameter greater than that of the first nozzle (18a), and switching means (60a, 60b, 70, 71) that switch a state of the vacuum generator between a first state, in which a small amount of air is sucked from the vacuum port (50), and a second state, in which a large amount of air is sucked from the vacuum port (50), the first nozzle (18a), the second nozzle (18b) and the diffuser nozzle (20) being serially arranged in that order.

    摘要翻译: 能够快速且可靠地保持和释放工件并且能够减少消耗的压缩空气的量的真空发生器包括第一喷嘴(18a)和第二喷嘴(18b),第一喷嘴(18a)和第二喷嘴(18b)朝向扩散喷嘴(20)喷射压缩空气 ),所述第二喷嘴(18b)的直径大于所述第一喷嘴(18a)的直径;以及切换装置(60a,60b,70,71),其将所述真空发生器的状态在第一状态和第二状态之间切换,在所述第一状态中, 从真空口50吸入少量的空气,从真空口50吸入大量的空气的第二状态,第一喷嘴18a,第二喷嘴18b, 该扩散喷嘴(20)以该顺序串联布置。

    Vakuumerzeugervorrichtung sowie Verfahren zum Betreiben einer Vakuumerzeugervorrichtung
    14.
    发明公开
    Vakuumerzeugervorrichtung sowie Verfahren zum Betreiben einer Vakuumerzeugervorrichtung 有权
    真空发生器的装置和方法用于操作真空发生器设备

    公开(公告)号:EP1213485A2

    公开(公告)日:2002-06-12

    申请号:EP01127994.0

    申请日:2001-11-24

    申请人: FESTO AG & Co

    IPC分类号: F04F5/52 F04F5/20

    CPC分类号: F04F5/52 F04F5/20 F04F5/22

    摘要: Es wird eine Vakuumerzeugervorrichtung vorgeschlagen, die über zwei Ejektoreinrichtungen (2, 2') verfügt. In die erste Ejektoreinrichtung (2) wird ein Betätigungsfluid eingespeist, das an einer Saugöffnung (16) einen Unterdruck erzeugt. Da die Saugöffnung (16) mit der Austrittsöffnung (15') der zweiten Ejektoreinrichtung (2') verbunden ist, bildet sich in der zweiten Ejektoreinrichtung (2') eine Absaugströmung aus, die sich an der Saugöffnung (16') der zweiten Ejektoreinrichtung (2') abgreifen lässt. Auf diese Weise kann mit einfachen Mitteln ein hoher Unterdruck erzeugt werden.

    摘要翻译: 它提出了一种真空产生装置,其具有两个Ejektoreinrichtungen(2,2“)。 在第一喷射器(2)的工作流体被供给,其在吸入口(16)的负压生成。 由于吸入开口(16)与所述出口开口(15“)被连接到所述第二喷射器装置(2”),在所述第二喷射器装置(2“)形成具有吸入流,这在吸入开口(16”的第二喷射器装置的() 可以挖掘2“)。 以这种方式,一个高负压可以通过简单的手段来生产。

    EJEKTORPUMPE
    15.
    发明公开
    EJEKTORPUMPE 失效
    EJEKTORPUMPE。

    公开(公告)号:EP0654124A1

    公开(公告)日:1995-05-24

    申请号:EP93917750.0

    申请日:1993-08-05

    申请人: Volkmann, Thilo

    发明人: Volkmann, Thilo

    IPC分类号: F04F5

    CPC分类号: F04F5/16 F04F5/22

    摘要: The efficacy of a multistage ejector pump is considerably improved by flow guiding profiles (1, 2, 3; 4) inserted into the flow channel (17, 17', 17'). The flow guiding profiles consist of one or several adjacent and/or successive profiles which on the one hand reduce the turbulence resulting from the mixture of the substance to be conveyed with the pump fluid and consequent damages to subsequent pump stages, and on the other hand help to reduce the residual energy of the pump fluid. The flow guiding profiles are designed in such a way that they can be used both in so-called flat channel pumps and in radial ejector pumps. The flow guiding profiles can further be assembled with corresponding segments of the ejector pump housing and profiles into ejector pump modules capable of being produced in a single piece and of being assembled with other similar modules into pumps having the desired capacity.

    EJECTOR APPARATUS OF FLUIDIZED BED HEAT-TREATING FURNACE
    16.
    发明授权
    EJECTOR APPARATUS OF FLUIDIZED BED HEAT-TREATING FURNACE 失效
    流化床热处理炉的引射装置

    公开(公告)号:EP0313669B1

    公开(公告)日:1993-10-20

    申请号:EP88904262.8

    申请日:1988-05-12

    IPC分类号: C21D1/53 F27B15/02

    摘要: This invention relates to an ejector apparatus of a fluidized bed heat-treating furnace for performing heat-treatment of a work A put into a fluidized bed (2) by circulating an exhaust gas at the upper layer portion of a retort (1) driven by a compressed gas and enclosing therein the fluidized bed (2) from the bottom of the retort (1) to its inside so as to cause fluidization of the fluidized bed (2). The main body (5a) of an ejector (5) consists of at least three members (7, 8, 9), and at least two systems of compressed gases are supplied to contracting portions (8d, 9d) from compressed gas inlets (12, 15) defined between the ejector members (7, 8, 9) through gaps formed between the ejector members (7, 8, 9). The gap of each ejector member (7, 8, 9) can be adjusted suitably by adjusting means (F, G). Therefore, the absorption efficiency of the ejector (5) can be freely adjusted over a wide range. Since a center rod of a prior art apparatus does not exist, the ejector (5) has a simple structure as a whole and is moreover compact.

    摘要翻译: 流化床热处理炉的喷射装置本发明涉及一种流化床热处理炉的喷射装置,用于通过在由蒸汽驱动的蒸馏器(1)的上层部分循环废气来对放入流化床(2)中的工件A进行热处理, 压缩气体并将其中的流化床(2)从蒸馏器(1)的底部密封到其内部以便引起流化床(2)的流化。 喷射器(5)的主体(5a)由至少三个构件(7,8,9)组成,并且至少两个压缩气体系统从压缩气体入口(12)供应到收缩部分(8d,9d) (7,8,9)之间形成的间隙限定在所述喷射器构件(7,8,9)之间。 每个弹出元件(7,8,9)的间隙可以通过调整装置(F,G)适当调整。 因此,喷射器(5)的吸收效率可以在宽范围内自由调节。 由于不存在现有技术装置的中心杆,所以喷射器5整体上具有简单的结构,并且结构紧凑。

    EJECTOR APPARATUS OF FLUIDIZED BED HEAT-TREATING FURNACE
    17.
    发明公开
    EJECTOR APPARATUS OF FLUIDIZED BED HEAT-TREATING FURNACE 失效
    流化床加热炉的喷射装置

    公开(公告)号:EP0313669A4

    公开(公告)日:1990-09-05

    申请号:EP88904262

    申请日:1988-05-12

    摘要: This invention relates to an ejector apparatus of a fluidized bed heat-treating furnace for performing heat-treatment of a work A put into a fluidized bed (2) by circulating an exhaust gas at the upper layer portion of a retort (1) driven by a compressed gas and enclosing therein the fluidized bed (2) from the bottom of the retort (1) to its inside so as to cause fluidization of the fluidized bed (2). The main body (5a) of an ejector (5) consists of at least three members (7, 8, 9), and at least two systems of compressed gases are supplied to contracting portions (8d, 9d) from compressed gas inlets (12, 15) defined between the ejector members (7, 8, 9) through gaps formed between the ejector members (7, 8, 9). The gap of each ejector member (7, 8, 9) can be adjusted suitably by adjusting means (F, G). Therefore, the absorption efficiency of the ejector (5) can be freely adjusted over a wide range. Since a center rod of a prior art apparatus does not exist, the ejector (5) has a simple structure as a whole and is moreover compact.

    Vacuum ejector device
    18.
    发明公开
    Vacuum ejector device 失效
    VAKUUM-Ejektorvorrichtung。

    公开(公告)号:EP0346314A2

    公开(公告)日:1989-12-13

    申请号:EP89850188.7

    申请日:1989-06-07

    申请人: Tell, Peter

    发明人: Tell, Peter

    IPC分类号: F04F5/22

    CPC分类号: F04F5/22

    摘要: The present invention relates summarily to a multi-ejector device with at least one ejector part (2) including at least one array of ejector jets (18, 19, 20) placed one after the other in the ejector part (2). Under the action of compressed air flowing through them, the jets (18, 19, 20) generate a subpressure in chambers (11, 12) connected to the jets. The chambers (11, 12) are in communication via openings (13, 15, 17) provided with non-return valves (14, 16) with a vacuum collection chamber (9), to which the tool or the like driven by the ejector device is connected. The ejector part (2) is an element in the shape of a plate formed by moulding or in some other way, where the ejector jets (18, 19, 20) and the valve chambers (11, 12) are formed integrally in the plate-like piece. The ejector part (2) is suitably parallel epipedic in shape, with pairs of arrays of jets (18, 19, 20) extending lengthwise through it, with each array ajacent the long side of said part and the vacuum collection chamber (9) placed between two jets (19).

    摘要翻译: 本发明简要地涉及具有至少一个喷射器部分(2)的多喷射器装置,喷射器部分(2)包括一个接一个放置在喷射器部分(2)中的至少一个喷射器射流阵列(18,19,20)。 在流过它们的压缩空气的作用下,喷射器(18,19,20)在连接到射流的腔室(11,12)中产生一个副压力。 室(11,12)经由具有真空收集室(9)的止回阀(14,16)的开口(13,15,17)连通,由喷射器驱动的工具等 设备已连接。 喷射器部分(2)是通过模制或以其它方式形成的板形元件,其中喷射器射流(18,19,20)和阀室(11,12)一体地形成在板中 像片。 喷射器部分(2)适当地平行成形,具有纵向延伸穿过其中的成对的喷射阵列(18,19,20),每个阵列位于所述部分的长边并且真空收集室(9)放置 两架飞机之间(19)。

    DISPOSITIF D'ASPIRATION DE FUMEES CHIRURGICALES EN BLOC OPERATOIRE

    公开(公告)号:EP3409386A1

    公开(公告)日:2018-12-05

    申请号:EP18175339.3

    申请日:2018-05-31

    申请人: Apar

    IPC分类号: B08B15/04 F04F5/22 F04F5/46

    摘要: Dispositif d'aspiration de fumées chirurgicales comportant :
    - un premier orifice d'entrée (100) pour recevoir un tuyau souple d'aspiration de fumées relié à un instrument de chirurgie générant des fumées chirurgicales tel un bistouri électrique,
    - un module de filtration (16, 110) pour traiter les fumées chirurgicales admises par le premier orifice d'entrée (100) et en extraire un air purifié, et
    - un générateur de vide à effet venturi comportant au moins une chambre de détente annulaire (114A, 114B, 114C) recevant l'air purifié issu du module de filtration et permettant à partir d'air comprimé reçu par un second orifice d'entrée (102) de créer une dépression dans au moins une chambre de détente annulaire (114A, 114B, 114C), l'air purifié étant mélangé à l'air comprimé avant d'être refoulés ensemble par un orifice de sortie (104).
    L'adjonction d'une électrovanne commandée (20) en amont du générateur de vide à effet venturi permet en outre un gain énergétique en consommation d'air comprimé.