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CN102056677B - 流体排出头 - Google Patents

流体排出头 Download PDF

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CN102056677B
CN102056677B CN200980121889.6A CN200980121889A CN102056677B CN 102056677 B CN102056677 B CN 102056677B CN 200980121889 A CN200980121889 A CN 200980121889A CN 102056677 B CN102056677 B CN 102056677B
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discharge head
fluid discharge
valve body
valve
medium
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CN102056677A (zh
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吉斯伯特·韦尔普
卡尔-海因茨·韦茨
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Silgan Dispensing Systems Hemer GmbH
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MeadWestvaco Calmar GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3468—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with means for controlling the flow of liquid entering or leaving the swirl chamber
    • B05B1/3473—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with means for controlling the flow of liquid entering or leaving the swirl chamber in response to liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0075—Two outlet valves being placed in a delivery conduit, one downstream the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7835—Valve seating in direction of flow

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Abstract

本发明涉及一种流体排出头，包括具有排出孔(6)的排出接管(5)，在排出接管(5)内安装一个内套筒(7)，该内套筒(7)具有介质通道(8)并容纳一个弹簧加载的自动关闭排出孔(6)的阀体(10)，其中，阀体(10)设计为圆柱形活塞，该活塞可以在一个由内套筒(7)构成的圆柱腔(12)内轴向移动，其中，设有用于活塞端(16、17)的上部阀座(14)和下部阀座(15)，以及阀体(10)有一个中间阀盘(18)，它构成一个与介质通道(8)连接的压力腔(19)的腔底，以及为了打开上部阀座(14)可调整压力腔内的介质排出压力，使之大于关闭阀体(10)的弹簧压力。

Description

流体排出头
技术领域
本发明涉及一种按权利要求1前序部分所述的流体排出头。
背景技术
由WO2007/009617A1已知一种流体排出头，包括一个有排出孔的排出接管，它容纳一个内套筒。在内套筒中安装一个内体，它构成出口通道的边界以及有一个连接元件，用于与排出设备的相配段连接。内套筒端侧在排出孔附近有一个密封面，处在内体上、封闭出口通道的阀塞，弹簧预紧地压靠在密封面上。因此阀集成在排出头内，在这种情况下阀的闭合通过使用者操纵时的相对运动实现。这种阀可以是小尺寸的。然而由于这种流体排出头存在回吸问题，不能充分保证，防止细菌和杆菌侵入。因此，为了使细菌或其他污物不能通过排出孔侵入系统内，可能需要使用微量活动的物质。在采用无防腐剂的介质时使用这种微量活动的物质是有害的。
发明内容
因此本发明的目的是创造一种流体排出头，它允许改善阀闭合。
此目的通过权利要求1的特征达到。
由此提供了一种有阀闭合的流体排出头，其中，通过一个过压阀在阀关闭时排除回吸问题。直接在一次喷雾脉冲后闪电式关闭，保证不仅细菌而且其他污物都不能通过介质排出孔侵入流体排出头。用于阀开启的力通过在排出头内输送的介质直接施加。可调的介质压力通过阀体克服弹簧力运动打开弹簧加载闭合的阀。在这种情况下借助排出设备输送到流体排出头内的介质引入圆柱腔的封闭和密封的空间内，从这里流向介质出口。此腔室调整去往介质出口的介质量，它的介质表面与介质初压相结合，对抗细菌和污物的入侵。可以是一种小尺寸的阀闭合。
弹簧作用在它上面以便将阀体压入上部阀座内的中间阀盘，优选地有一个密封带用于圆柱腔的底侧密封。当其腔底构成中间阀盘的圆柱腔具有足够的介质压力时，若通过介质初压造成的作用在中间阀盘上的力大于关闭的弹簧力，则退出上部阀座。通过圆柱腔内部投影面与压力增大的转换比，可以影响开启和关闭特性。
下部阀座优选地具有介质通道密封垫的功能，阀体可运动的下端与它紧密地贴靠。
由下面的说明及从属权利要求可以看出本发明的其他扩展设计。
附图说明
下面借助附图中表示的实施例详细说明本发明。
图1示意表示按第一种实施例的流体排出头的剖面图；
图2示意表示图1所示的流体排出头阀闭合的放大图；
图3表示按图2的流体排出头阀闭合开启时的放大图；
图4示意表示按第二种实施例的流体排出头剖面图；
图5表示按图4的流体排出头阀闭合开启时的放大图；
图6示意表示按图4的流体排出头部分去除排出接管的俯视图；
图7示意表示按第三种实施例的流体排出头剖面图；以及
图8示意表示按图7的流体排出头和可能的压降路径剖面图。
具体实施方式
图1至3表示与排出设备2一起使用的流体排出头1，其中，排出设备2包括一个没有表示的用于流体的介质储存器，介质在压力状态存放在其中，或介质借助介质泵3，尤其活塞泵，从储存器排出。排出设备2有一个相配段4，流体排出头1可以安装在相配段4上。排出设备2与装上的流体排出头1一起，构成一个尤其用于液态介质的供体。
流体排出头1与排出设备2为了排出操作，可通过缩短供体而轴向相对运动。当释放操纵力时，它们在弹簧F的作用下沿反向返回按图1的起始位置。
流体排出头1包括一个带排出孔6的排出接管5，排出孔6在这里设在排出接管5端侧。排出接管5容纳一个内套筒7，它构成介质通道8的边界，介质通道8与介质导引装置34的排出段26连接，后者形式上为互相连接的并处于流体排出头1内部的通道段和/或介质腔。
此外，内套筒7可以有一个连接元件9，用于与排出设备2的相配段4连接。内套筒7在其背对排出孔6的端部设计为罐状，用于与具有排出孔6的排出接管5在端侧的端部13结合构成一个圆柱腔12。为了关闭排出孔6，内套筒7容纳一个弹簧加载的自动关闭排出孔6的阀体10。
阀体10设计为圆柱形活塞，它可以在由内套筒7顶侧构成的圆柱腔12内轴向移动。可运动的阀体10将圆柱腔12再分为一个上部和一个下部腔室段。上部腔室段构成压力腔19，它与介质通道8连接，以及可以朝排出孔6方向打开和关闭。下部腔室段用于容纳弹簧元件，尤其压力弹簧20，它用于对阀体10压力加载，从而使阀体10借助预紧力作为弹簧加载的阀体10来关闭排出孔6。
为阀体10设上部阀座14和下部阀座15，它们同时可以用作活塞端16、17的导向支座。优选地，这两个阀座14、15中至少一个起导向支座的作用。阀体10的活塞有一个中间阀盘18，它构成与介质通道8连接的压力腔19的一个腔底。中间阀盘18朝上部阀座14方向密封压力腔19。此外，中间阀盘18优选地用于导引阀体10在圆柱腔12内的运动。中间阀盘18优选地设计为环形密封唇，当其上、下运动时在圆柱腔12内导引阀体10。中间阀盘18构成压力腔19的一个腔底，它可以相对于排出孔6轴向运动，确切地说通过阀体10的运动。因此压力腔19的容积含量改变，其中，当排出孔6开启时的容积增大，通过充填在流动通道21内的介质压力，使细菌不可能侵入。在排出孔6关闭时压力腔19容积含量的減小，造成介质剩余推力，它阻止细菌入侵。
为了打开上部阀座14，可调整压力腔19内的介质排出压力，使之大于关闭阀体10的压力弹簧20的弹簧压力。图1和图2表示被阀体10关闭的排出孔6。
阀体10被介质流过，为此阀体10有一个流动通道21，它连接介质通道8与压力腔19。优选地，流动通道21在中心通过阀体10导引。流动通道21由一个压送管段构成，它在出口侧优选地终止在环形槽22内，环形槽22将流动通道21转移到压力腔19内。
下部阀座15优选地有介质通道密封垫的功能，阀体10的管口状展宽的活塞端17可以紧密地贴靠在下部阀座15内，确切地说在阀体10向下和向上运动时。
上部阀座14优选地包括一个开缝的套筒24，它可以在打开和关闭运动时导引上部活塞端16，另一方面，当上部活塞端16与优选地圆的密封面23一起退出并相对于压力腔19释放排出孔6时，允许通过套筒缝流入排出孔6。排出孔6可以有一个或多个孔，这取决于希望有什么样的喷雾形象或射束形象。套筒24可以设计为一个螺旋腔。
套筒24优选地悬臂状设计在排出接管5上。压力腔19用一个流体的入流闸室围绕着排出孔6，它在中间阀盘18与上部阀座14之间，排出孔6附近，制备一个流体料位作为入流储备库。在阀体10从上部阀座14退出前，保留有具有高初始压力的介质，所以当释放排出孔6时，保留的介质直接排出。所述初压优选地调整在1.5至2.3bar之间的范围内。
图3表示释放的排出孔6。为此阀体10实施离开排出孔6的运动，使密封面23抬起。保留在压力腔19中的介质，此时通过在阀体10顶端与排出接管5在端侧的端部13之间形成的空腔28，从排出孔6压出。空腔28优选地是一个螺旋腔。在这里，排出的量并不限于压力腔19的容积含量，因为介质通过流动通道21输送并排出，直至泵行程或压缩行程结束。
开启特征取决于投影面F1与F2的转换比，其中F1由用于下部活塞端17的阀座15及其直径决定，而F2通过压力腔19和中间阀盘18的直径决定。F3确定在阀体10上部活塞端处密封面23区域内的排出孔6孔径。
压力弹簧20装入圆柱腔12内，以及一端支承在中间阀盘18的下侧，一端支承在阀座15附近圆柱腔12的一个台阶27上。
阀体10可以克服压力弹簧20的弹簧力地轴向移动，以便打开和关闭上部阀座14。轴向的行程可以通过弹簧压缩并由此增大的弹簧力，和/或通过一个可以设在下部阀座15上的止挡限制。
内套筒7固定安装在排出接管5上，在这种情况下所述固定可以通过可拆的卡扣连接进行。
排出接管5为了能通过施加操纵力实现手动操纵，在相配段4上有手指支承面25。用于进一步导引从介质容器排出的流体的排出接管5，以其介质通道8与相配段4排出通道形式的排出段26连接。通道26的孔径是可以选择的，以及可以通过插入段与期望的输送量相匹配。通道26、8和21优选地沿中心线叠置。
在这里，排出接管5有橄榄头形(Nasenolive)的形状，以便能作为鼻形适配器安装在相配段4上。对于其他应用目的，排出接管5可以有其他外形。
图4至图6表示流体排出头1的第二种实施例，它与上面说明的第一种实施例的区别在于，在这里套筒24设计在一个装入的构件29上，构件29固定在内套筒7与排出接管5上端13之间。为此构件29星形轮状可设有腿30，这些腿30可用于定位在内套筒7上。此外，集成在构件29内的套筒24可设计一些螺旋通道31。通过螺旋通道31可赋予从空腔28排出的介质以可选择的喷雾形象。
此外，第二种实施例与第一种实施例的区别还在于，介质通道8与形式上为介质腔的排出段26连接，它借助阀，尤其球阀32，截止或防止介质回流。在这里按本发明的流体排出头1可以与多种不同的排出和输送系统33组合。
此外，前面对第一种实施例的说明相应地也适用于第二种实施例。
按图7和图8中表示的第三种实施例采用一种流体排出头1，它可以在装配线上测试不密封性。这种流体排出头可以检验不同的压降路径。由此可以实施完整的密封性检验。
为此流体排出头设置一个带排出孔6的排出接管5，其中安装一个内套筒7，它有一个介质通道8和容纳一个弹簧加载的自动关闭排出孔6的阀体10，阀体10作为可轴向移动的活塞，在内套筒7的罐状端部内，设有用于活塞端16、17的上部阀座14和下部阀座15。罐状端部11构成具有内部流动通道21的阀体10的圆柱腔12，以及罐状端部11在圆柱腔12与排出接管5的内腔43之间有一个壁孔42。
罐状端部11在圆柱腔12与排出接管5的内腔43之间有一个壁孔42。图2表示可检验的密封点和在不密封时可能的压降路径V1、V2和V3。为此沿介质导引方向47(参见图7)施加空气压力P。若中间阀盘18朝上部阀座14的方向不密封和/或阀座15不密封，空气可以通过壁孔42进入内腔43并可测得压降V2。若在阀座14的区域内不密封，便可测得压降V1。在内套筒7与排出接管5之间不密封，可测得压降V3。
此外，流体排出头1在罐状端部11有外凸块44，它作为止挡在内套筒7沿轴向方向向上运动时，与排出接管5内壁48上的肋45配合作用。
用于进一步导引从介质容器排出的流体的排出接管5，以其介质通道8与相配段4排出通道形式的排出段26连接。通道26的孔径是可以选择的，以及可通过插入段与期望的输送量相匹配。通道26、8和21优选地沿中心线叠置。
在这里，排出接管5有橄榄头形的形状，以便能作为鼻形适配器安装在相配段4上。对于其他应用目的，排出接管5可以有其他外形。
此外，在这里也相应地适用前面针对第一和第二种实施例所作的说明。

Claims (17)

1.一种流体排出头，包括具有排出孔(6)的排出接管(5)，在排出接管(5)内安装一个内套筒(7)，该内套筒(7)具有介质通道(8)并容纳一个弹簧加载的自动关闭排出孔(6)的阀体(10)，其特征为：阀体(10)设计为圆柱形活塞，该活塞可以在一个由内套筒(7)构成的圆柱腔(12)内轴向移动，其中，设有用于活塞端(16、17)的上部阀座(14)和下部阀座(15)，以及阀体(10)有一个用于在圆柱腔(12)中导引的中间阀盘(18)，它构成一个与介质通道(8)连接的压力腔(19)的腔底，以及为了打开上部阀座(14)可调整压力腔内的介质排出压力，使之大于关闭阀体(10)的弹簧压力。
2.按照权利要求1所述的流体排出头，其特征为，所述中间阀盘(18)朝上部阀座(14)方向密封压力腔(19)。
3.按照权利要求1或2所述的流体排出头，其特征为，所述中间阀盘(18)设计为环形密封唇，当其上、下运动时在所述圆柱腔(12)内导引阀体(10)。
4.按照权利要求1所述的流体排出头，其特征为，下部阀座(15)密封地承接一个管口状展宽的活塞端(17)。
5.按照权利要求1所述的流体排出头，其特征为，至少一个阀座(14、15)设计为一个用于活塞端(16、17)的导向支座。
6.按照权利要求1所述的流体排出头，其特征为，所述内套筒(7)有一个连接元件(9)，用于与排出设备(2)的相配段(4)连接。
7.按照权利要求1所述的流体排出头，其特征为，所述圆柱腔(12)设计为罐状。
8.按照权利要求1所述的流体排出头，其特征为，所述介质通道(8)作为流动通道(21)延伸通过阀体(10)。
9.按照权利要求1所述的流体排出头，其特征为，流动通道(21)在中心延伸通过阀体(10)。
10.按照权利要求1所述的流体排出头，其特征为，所述圆柱腔(12)有台阶(27)，作为对阀体(10)弹簧预紧用的压力弹簧(20)的支承面。
11.按照权利要求1所述的流体排出头，其特征为，上部阀座(14)设计在套筒(24)内。
12.按照权利要求11所述的流体排出头，其特征为，套筒(24)设计为开缝的悬臂套筒与排出接管(5)构成一体。
13.按照权利要求11所述的流体排出头，其特征为，套筒(24)设计为可装入的构件(29)。
14.按照权利要求13所述的流体排出头，其特征为，所述可装入的构件(29)成形为有腿(30)的星形轮状以及顶侧有一些螺旋通道(31)。
15.按照权利要求1所述的流体排出头，其特征为，压力腔(19)用一个入流闸室围绕着排出孔(6)。
16.按照权利要求1所述的流体排出头，其特征为，介质通道(8)与形式上为互相连接的并处于流体排出头(1)内部的通道段和/或介质腔的介质导引装置(34)的排出段(26)连接。
17.按照权利要求16所述的流体排出头，其特征为，所述介质通道(8)可与排出系统(33)的借助阀(32)防止介质回流的腔室状排出段(26)连接。
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