Pneumatisch betätigte Hydraulikpumpe
    2.
    发明公开
    Pneumatisch betätigte Hydraulikpumpe 失效
    PneumatischbetätigteHydraulikpumpe。

    公开(公告)号:EP0071655A1

    公开(公告)日:1983-02-16

    申请号:EP81106100.1

    申请日:1981-08-04

    发明人: Brunner, Rudolf

    IPC分类号: F01L25/06 F04B9/12

    CPC分类号: F01L25/066 F04B9/129

    摘要: Dem Kolbenschieber (30) sind stirnseitig Hilfskolben (41) kleineren Durchmesser zugeordnet, die mit Vorsteuerdruck beaufschlagbar sind und je ein gedrosselter Entlüftungskanal (46) führt von jedem Stirnende (32) des Kolbenschiebers in den Rücklauf (28, 29). Zwischen einer abdichtenden Führung (38) für jeden Hilfskolben und dem benachbarten Stirnende des Kolbenschiebers wird eine Kammer (39) gebildet, in der durchleckender Beaufschlagungsdruck des pneumatischen Arbeitskolbens (9) dann einen Druckimpuls erzeugt, wenn sich der Kolbenschieber in der ungünstigen Zwischenstellung befindet. Aus diesem Druckimpuls resultiert eine Kraft, die den Kolbenschieber weiterverschiebt, so daß eine funktionsgerechte Umsteuerung des Kolbenschiebers erfolgt. Dabei wird die Ausbildung schädlicher und die Umsteuerung des Kolbenschiebers behindernder Luftpolster durch die gedrosselten Entlüftungskanäle (46) vermieden.

    摘要翻译: 1.一种气动致动液压泵(1),其包括适于经由用于致动液压泵元件(19)的开关阀(14)交替加压的双作用致动器活塞(9),安装在所述开关阀中的阀芯(30) (14),用于通过由作用在所述致动器活塞(9)上的压力导出的选择器控制压力的作用在两个操作位置之间移位,以便在其每个操作位置将连接通道(25或26)连接到加压 空气供应通道和另一个连接通道(26或25)连接到返回通道(28或29),所述返回通道(28,29)大致设置在与所述连接通道(25,26)相同的径向平面中,如 涉及所述阀芯的纵向轴线,其特征在于,同轴的减小直径的辅助活塞(41)与所述阀芯(30)的每个端面相关联,每个所述辅助活塞可在所述开关阀壳体中密封地滑​​动 15)和a 使其端部背离所述阀芯(30)的作用,所述阀芯(30)由所述选择器控制压力作用,因为两个环形室(39)中的一个设置在用于每个辅助活塞(41)的密封引导装置(38)和 所述阀芯(30)的相应端面(32),所述加压空气被允许泄漏到所述环形室中,并且在所述阀芯的端面(32)之间形成有限制的通气通道(46) 30)关闭加压空气供应通道(24)和相关联的返回通道(28,29)和所述返回通道(28,29)之间的连接。

    Amplificateur de pression hydraulique
    3.
    发明公开
    Amplificateur de pression hydraulique 失效
    液体助推器。

    公开(公告)号:EP0192580A1

    公开(公告)日:1986-08-27

    申请号:EP86420006.8

    申请日:1986-01-08

    申请人: EIMCO-SECOMA

    IPC分类号: F04B9/10 F01L25/06 F03C1/00

    摘要: Un piston étagé (18) est monté coulissant dans un cylindre (17) de manière à former une première chambre annulaire (24), reliée en permanence à une amenée de fluide primaire sous pression (31, 32), et une seconde chambre annulaire (25) de plus grande section. Une valve de commande (34), avec tiroir à sections différentielles (35), met la seconde chambre (25) en communication alternativement avec l'amenée de fluide primaire sous pression (31, 32) et avec un conduit de retour (40). La valve (34) est pilotée par le fluide primaire, au moyen d'un conduit (47) partant du cylindre (17). Le piston (18) est prolongé par deux plongeurs opposés (19, 20) qui pénètrent dans deux chambres (2, 5) mises en relation avec des arrivées (3, 6) et des départs (4, 7, 12, 13, 14) d'un fluide secondaire.
    Application à la fourniture d'eau sous haute pression, pour la foration de roches.

    Apparatus for driving piston by fluid pressure
    7.
    发明公开
    Apparatus for driving piston by fluid pressure 失效
    Antriebsvorrichtungfüreinen Kolben durchFlüssigkeitsdruck。

    公开(公告)号:EP0268458A2

    公开(公告)日:1988-05-25

    申请号:EP87310134.9

    申请日:1987-11-17

    发明人: Yonezawa, Keitaro

    IPC分类号: F04B9/12

    CPC分类号: F01L25/066 F04B9/107

    摘要: A piston (8) slidably inserted into a cylinder (7) is reciprocatably moved by fluid pressure such as pneumatic pressure and hydraulic oil and a spring (11) is used to move the piston upwardly. A spool-shaped pilot valve element (46) is provided to allow a supply-discharge valve disc (30) to take supply and discharge positions (X and Y), thus fluid pressure being supplied to and discharged from the cylinder. When the supply-discharge valve disc is actuated to take the supply position from the discharge position, the actuated force becomes stronger while the supply-discharge valve disc is in operation. When the supply-discharge valve disc is actuated to take the discharge position from the supply position, the back pressure resistance applied to the supply-discharge valve disc becomes weaker while the supply-discharge valve disc is in operation.

    摘要翻译: 可滑动地插入气缸(7)中的活塞(8)通过诸如气动压力和液压油的流体压力往复运动,并且弹簧(11)用于向上移动活塞。 提供了一种阀芯形的先导阀元件(46),以允许供排气阀盘(30)获取和排出位置(X和Y),从而将流体压力供应到气缸和从气缸排出。 当供给排出阀盘被驱动以从排放位置获取供应位置时,在供给 - 排出阀盘运行时,致动力变强。 当供给排出阀盘被致动以从供给位置取出排出位置时,供给排出阀盘在运行时施加到供给排出阀盘的背压阻力变弱。

    Improvements relating to double-diaphragm pumps
    8.
    发明公开
    Improvements relating to double-diaphragm pumps 失效
    双隔膜泵。

    公开(公告)号:EP0181756A1

    公开(公告)日:1986-05-21

    申请号:EP85308000.0

    申请日:1985-11-04

    申请人: FLOTRONICS AG

    IPC分类号: F04B43/06 F01L25/06

    摘要: A double diaphragm pump comprises a centre body 10 and two end-caps 11, 12, the outer peripheries of two diaphragms 20, 21 being clamped between the centre body and the two end-caps respectively. The diaphragms are interconnected by a hollow push-rod 26 slidably and sealing- ly mounted in a bush 17 in the centre body. A shaft 30 extends centrally through the push-rod, diaphragm and end-cap and has a radial flange at one end and a nut engaged on a screw-thread at its other end whereby the end-caps, diaphragm and centre body are clamped axialy together. Air under pressure is supplied to the two axially outer chamber 23, 24 formed between the diaphragms and the end-caps under the control of a change-over spool valve 45, change-over operation of which is initiated by the approach of the push-rod 26 to either end of its reciprocating movement.

    A pump
    9.
    发明公开
    A pump 失效
    一个PUMP

    公开(公告)号:EP0067048A3

    公开(公告)日:1983-02-09

    申请号:EP82302879

    申请日:1982-06-03

    IPC分类号: F04B43/06 F01L25/06

    CPC分类号: F01L25/066 F04B43/073

    摘要: A double diaphragm pump comprises a pair of chambers (14,15), each with a plate and diaphragm arrangement (23, 24 and 25, 26) which forms parts of the boundaries thereof. A pressurised fluid such as air is directed alternately to respective spaces (31, 32) outside the chambers and adjacent the diaphragms by means of an actuating means (30) which comprises a spool (34) in a spool chamber (33). A control means (9) which comprises a rod (27) extending between the plates (23 and 25) controls operation of the actuating means. The control means which is movable with the diaphragms directs fluid alternately to the ends of the spool chamber and prevents supply of fluid to an end of the spool chamber opposite to that end to which fluid is directed at a selected moment.

    A pump
    10.
    发明公开
    A pump 失效
    一个泵

    公开(公告)号:EP0067048A2

    公开(公告)日:1982-12-15

    申请号:EP82302879.0

    申请日:1982-06-03

    IPC分类号: F04B43/06 F01L25/06

    CPC分类号: F01L25/066 F04B43/073

    摘要: A double diaphragm pump comprises a pair of chambers (14,15), each with a plate and diaphragm arrangement (23, 24 and 25, 26) which forms parts of the boundaries thereof. A pressurised fluid such as air is directed alternately to respective spaces (31, 32) outside the chambers and adjacent the diaphragms by means of an actuating means (30) which comprises a spool (34) in a spool chamber (33). A control means (9) which comprises a rod (27) extending between the plates (23 and 25) controls operation of the actuating means. The control means which is movable with the diaphragms directs fluid alternately to the ends of the spool chamber and prevents supply of fluid to an end of the spool chamber opposite to that end to which fluid is directed at a selected moment.

    摘要翻译: 双隔膜泵包括一对腔室(14,15),每个腔室具有形成其边界的一部分的板和隔膜装置(23,24和25,26)。 诸如空气之类的加压流体通过在阀芯腔室(33)中包括阀芯(34)的致动装置(30)交替地引导至腔室外部的相应空间(31,32)并邻近隔膜。 包括在板(23和25)之间延伸的杆(27)的控制装置(9)控制致动装置的操作。 可与膜片一起移动的控制装置将流体交替地引导到卷轴室的端部,并且防止将流体供应到卷轴室的与在选定时刻流体被引导至的端部相反的端部。