KREISELPUMPE
    2.
    发明授权
    KREISELPUMPE 失效
    旋转泵

    公开(公告)号:EP0660904B1

    公开(公告)日:1997-03-05

    申请号:EP94918260.4

    申请日:1994-06-24

    申请人: Stähle, Martin

    发明人: Stähle, Martin

    IPC分类号: F04D9/06 F04D7/04 F04D9/00

    CPC分类号: F04D7/045 F04D9/003 F04D9/06

    摘要: Proposed is a pump with an impeller (1) which is securely mounted by its boss (3) on a shaft (4) so that it cannot rotate. The rear (driven) edges of the impeller rotate, leaving a narrow clearance (a), over the rear wall (5) of the pump housing. Together with the impeller (1), this wall forms a labyrinth gap (6) which connects the pump chamber (2') with a hollow space (7) in the boss. Connected in this hollow space (7) to the impeller (1) so that it cannot rotate is a coaxial flywheel designed to impart a vigorous rotational motion to the liquid in the hollow space (7) and hence force it out of the space. The space (7) has a peripheral opening (12) to allow the liquid to pass out. The air which collects near the shaft (4) escapes through a gap (10) between the boss-housing wall (20) and the shaft (4). The peripheral opening (12) is located in the boss-housing wall (20) and designed as a propulsion nozzle. It opens out into a space (11) adjacent to the hollow space (7) in the boss and connected to it by the gap (10), the nozzle pointing towards a diffusion tube (13) and forming a jet pump (12, 13) through which the liquid emerging from the hollow space (7) in the boss flows.

    Selbstansaugende Kreiselpumpe
    3.
    发明公开
    Selbstansaugende Kreiselpumpe 失效
    Selbstansaugende Kreiselpumpe。

    公开(公告)号:EP0645541A1

    公开(公告)日:1995-03-29

    申请号:EP94114953.6

    申请日:1994-09-22

    IPC分类号: F04D9/06

    CPC分类号: F04D9/06

    摘要: Die Kreiselpumpe weist ein Pumpengehäuse (1) mit einer Saugleitung (10) und einer Druckleitung (5) auf. Im Pumpengehäuse (1) ist eine Pumpenkammer (2) vorgesehen, die ein Pumpenlaufrad (3) enthält. Außerdem ist die Pumpenkammer an eine Treibmittelkammer (4) und über diese an die Druckleitung (5) angeschlossen. Dem Pumpenlaufrad (3) ist ein Strahlpumpen- Diffusor (6) vorgeschaltet, dessen Einlaß mit der Saugleitung (10) in Verbindung steht und von einer Treibdüse (11) beaufschlagt wird. Deren Einlaß ist an einen mit der Treibmittelkammer (4) verbundenen Zulaufkanal (12) angeschlossen. Eine Bypaßleitung (13) führt von der Saugleitung (10) unter Umgehung des Einlaßes (9) des Diffusors (6) zu dessen Auslaß und enthält ein selbstätig schließendes Ventil (13), das die Bypaßleitung (13) sperrt, wenn Luft angesaugt wird, und sich unter der Wirkung des vom Diffusor (6) erzeugten Unterdrucks öffnet, wenn die Pumpe nur noch Flüssigkeit fördert. Dies erhöht die Saug- und Förderleistung, da die Flüssigkeit nicht mehr ausschließlich den verengten Diffusoreintritt passieren muß, sondern auch durch die Bypaßleitung strömen kann.

    摘要翻译: 离心泵具有带有入口管线(10)和排出管线(5)的泵壳体(1)。 在泵壳体(1)中设置有包含泵叶轮(3)的泵室(2)。 此外,泵室还连接到推进剂室(4),并通过该推进剂室连接到排出管线(5)。 在泵叶轮(3)之前排列的喷射泵扩散器(6),其入口连接到入口管线(10)并被主喷嘴(11)作用。 后者的入口连接到连接到推进剂室(4)的进料通道(12)。 旁路管路(13)从入口管线(10)引导到扩散器(6)的出口,绕过其中的入口(9),并且包含一个自动关闭阀(13),其将旁路管线 (13),当泵仅输送液体时,在由扩散器(6)产生的负压的作用下吸入空气并打开空气。 这增加了进气和输送速率,因为液体不再需要通过限制的扩散器入口,而且也可以流过旁通管线。

    Pump
    6.
    发明公开
    Pump 失效

    公开(公告)号:EP0398005A3

    公开(公告)日:1992-01-08

    申请号:EP90106230.7

    申请日:1990-03-31

    发明人: Hansen, Lowell D.

    摘要: A hydraulic fluid pump (10, 90) for aircraft turbine engine fuel delivery systems comprises a housing (12, 96) having a pump drive shaft (16) mounted for rotation therewithin. A centrifugal pump stage (26) includes an impeller (28) coupled to the drive shaft (16) and having a circumferential array of radially extending passages (30) with inlet ends adjacent to the shaft (16) and outlet ends at the periphery of the impeller (28). An inducer stage (34) includes a spiral inducer (36) coupled to the shaft (16) to rotate coaxially with the impeller (28) and having an outlet end adjacent to the inlet end of the impeller passages (30). An injector stage (42, 102) includes a passage (44) in the housing for feeding fluid to the inlet end of the inducer, and a circumferential array of nozzle orifices (90, 104) in the housing aligned with the injector passage and receiving fluid from a collection cavity (32) that surrounds the periphery of the impeller. The pump inlet is fed to the injector passage, with the injector nozzles (90, 104) cooperating with the passage to boost fluid pressure and flow through the passage to the inducer inlet, which in turn boosts fluid pressure and flow to the impeller (28).

    Centrifugal pump system with inlet reservoir
    7.
    发明公开
    Centrifugal pump system with inlet reservoir 失效
    Kreiselpumpensystem mitEinlassbehälter。

    公开(公告)号:EP0294064A1

    公开(公告)日:1988-12-07

    申请号:EP88304619.5

    申请日:1988-05-20

    申请人: LEAR ROMEC CORP.

    发明人: Sailer, Thomas

    IPC分类号: F04D9/06

    CPC分类号: F04D9/06

    摘要: Pump system (1) includes a centrifugal pump (2) having an inlet reser­voir (3) connected to the upstream end thereof for initially receiving the vapor/liquid mixture entering the system to allow air or vapor to separate from the liquid. Below the liquid level (L) in the reservoir is a mixing tube (25) which provides the only liquid flow path to the centrifugal pump (2). Also within the reservoir (3) below the liquid level (L) is a main ejector pump (20) which injects liquid into the mixing tube (25). The injected tube induces liquid flow from the reservoir (3) into the mixing tube (25) for flow to the centrifugal pump (2). Also, one or more vapor scavenge ejectors may be provided within the reservoir (3) to induce air or vapor from selected collected areas within the reservoir (3) and propel the air or vapor into the mixing tube (25) intermediate its length where the air or vapor is thoroughly mixed with the liquid contained therein at an intermediate pressure higher than the reservoir pressure before entering the centrifugal pump (2).

    摘要翻译: 泵系统(1)包括离心泵(2),其具有连接到其上游端的入口容器(3),用于初始接收进入系统的蒸气/液体混合物以允许空气或蒸气与液体分离。 在储存器中的液面(L)之下是将离心泵(2)提供唯一的液体流动路径的混合管(25)。 在液面(L)下方的贮存器(3)内也是将液体喷射到混合管(25)中的主喷射泵(20)。 注入的管引起液体从储存器(3)流入混合管(25)以流到离心泵(2)。 而且,一个或多个蒸汽清除喷射器可以设置在储存器(3)内以从贮存器(3)内的所选收集区域中引入空气或蒸气,并将空气或蒸气推进到混合管(25)的长度的中间 在进入离心泵(2)之前,将空气或蒸汽与其中容纳的液体以高于储存器压力的中间压力充分混合。

    Pompe autoamorçante à hydroéjecteur
    8.
    发明公开
    Pompe autoamorçante à hydroéjecteur 失效
    Selbstansaugende Pumpe mit Hydroinjektor。

    公开(公告)号:EP0201377A1

    公开(公告)日:1986-12-17

    申请号:EP86400729.9

    申请日:1986-04-04

    IPC分类号: F04D9/06

    CPC分类号: F04D9/06

    摘要: @ La présente invention a pour objet une pompe centrifuge autoamorçante à hydroéjecteur.
    L'hydroéjecteur est constitué par une buse (61) et un venturi (11, 19).
    La pompe est caractérisée en ce que le venturi est réalisé dans la masse du corps (1) de pompe et en ce que des moyens sont prévus pour faire varier les performances et le rendement, en régime permanent, lorsque l'amorçage est terminé.

    摘要翻译: 本发明涉及一种具有喷射器的自吸式离心泵。 喷射器由喷嘴(61)和文丘里管(11,19)组成。 泵的特征在于,文丘里管由泵体(1)的质量产生,并且在启动结束时提供用于改变稳定状态下的性能和效率的装置。

    PUMPE UND VERFAHREN ZUR FÖRDERUNG UND ENTGASUNG EINER FLÜSSIGKEIT MITTELS EINER DÜSE IM PUMPENEINLASS
    9.
    发明公开
    PUMPE UND VERFAHREN ZUR FÖRDERUNG UND ENTGASUNG EINER FLÜSSIGKEIT MITTELS EINER DÜSE IM PUMPENEINLASS 审中-公开
    泵和方法推广和脱气液体通过射流泵入口的方式

    公开(公告)号:EP2625429A1

    公开(公告)日:2013-08-14

    申请号:EP11763602.7

    申请日:2011-09-28

    发明人: RÜSING, Andreas

    IPC分类号: F04D9/06

    CPC分类号: F04D9/06

    摘要: An inexpensive and simple-to-control solution for degassing liquid media is to be provided by way of a pump for delivering and degassing a liquid and having a pump housing with a pump inlet and a pump outlet, wherein a pump impeller which is connected to a drive motor is provided within the pump housing and wherein a nozzle is provided in a degassing device. This is achieved with a pump by virtue of the fact that the at least one nozzle (7) is arranged in the pump inlet (4), wherein an entry of liquid into an interior (6) of the pump housing (2) is possible only through the nozzle (7), and the degassing device has a control device which is connected to the drive motor (3).

    Self-priming centrifugal jet pump
    10.
    发明公开
    Self-priming centrifugal jet pump 有权
    自吸离心式喷射泵

    公开(公告)号:EP2037125A2

    公开(公告)日:2009-03-18

    申请号:EP08164172.2

    申请日:2008-09-11

    申请人: Dab Pumps S.p.A.

    IPC分类号: F04D9/02 F04D9/06

    CPC分类号: F04D9/02 F04D9/06

    摘要: A self-priming centrifugal jet pump, comprising, within the pump body (11), an ejector designed to generate the suction required to prime the liquid to be pumped, the ejector comprising a Venturi duct (12), which is contiguous to the inlet (26) of the impeller (13) of the pump (10), preceded by a nozzle (14), the Venturi duct (12) and the nozzle (14) being aligned and forming between them at least one suction orifice (15), the nozzle (14) and the Venturi duct (12) lying substantially at right angles to the rotation axis (17) of the impeller (13).

    摘要翻译: 1。一种自吸式离心式喷射泵,其特征在于,在泵体(11)内包括喷射器,所述喷射器设计用于产生用于引导要泵送的液体所需的抽吸,所述喷射器包括文氏管(12),所述文丘里管(12) (14),文氏管(12)和喷嘴(14)对齐并在它们之间形成至少一个吸入孔(15),所述泵(10)的叶轮(13) ,喷嘴(14)和文氏管(12)基本上与叶轮(13)的旋转轴线(17)成直角。