EP2293880B2 - Tête de décharge de fluide - Google Patents

Tête de décharge de fluide Download PDF

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Publication number
EP2293880B2
EP2293880B2 EP09761388.9A EP09761388A EP2293880B2 EP 2293880 B2 EP2293880 B2 EP 2293880B2 EP 09761388 A EP09761388 A EP 09761388A EP 2293880 B2 EP2293880 B2 EP 2293880B2
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EP
European Patent Office
Prior art keywords
discharge head
fluid discharge
head according
valve body
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09761388.9A
Other languages
German (de)
English (en)
Other versions
EP2293880A1 (fr
EP2293880B1 (fr
Inventor
Gisbert Welp
Karl-Heinz Waitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Silgan Dispensing Systems Hemer GmbH
Original Assignee
MeadWestvaco Calmar GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority claimed from DE102008027598A external-priority patent/DE102008027598A1/de
Priority claimed from DE102008027600A external-priority patent/DE102008027600A1/de
Application filed by MeadWestvaco Calmar GmbH filed Critical MeadWestvaco Calmar GmbH
Publication of EP2293880A1 publication Critical patent/EP2293880A1/fr
Application granted granted Critical
Publication of EP2293880B1 publication Critical patent/EP2293880B1/fr
Publication of EP2293880B2 publication Critical patent/EP2293880B2/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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

Definitions

  • the invention relates to a fluid discharge head according to the preamble of claim 1.
  • a fluid discharge head with a discharge connection having a discharge opening which receives an inner sleeve is known.
  • an inner body is arranged which delimits an outlet channel and has a connecting member for connection to the counterpart of a discharge device.
  • the inner sleeve has a sealing surface on the front side, adjacent to the discharge opening, against which a valve plug located on the inner body and closing the outlet channel is spring-preloaded.
  • a valve is thus integrated into the discharge head, in which the valve closure is realized by a relative movement when actuated by the user. Such a valve can be made small. Due to the back suction problem of the fluid discharge head, however, there is insufficient protection against the ingress of germs and bacteria. The use of oligodynamic substances may therefore be necessary so that no germs or other impurities can penetrate into the system through the discharge opening. The use of such oligodynamic substances when using preservative-free media is disadvantageous.
  • the object of the invention is therefore to create a fluid discharge head which allows improved valve closure.
  • a lightning-like closure immediately after a burst of spray ensures that neither germs nor other contaminants can penetrate through the media outlet opening into the fluid discharge head.
  • the force to open the valve is applied directly via the medium conveyed into the discharge head.
  • An adjustable medium pressure opens the spring-loaded valve closure by moving the valve body against a spring force.
  • the medium conveyed into the fluid discharge head by means of a discharge device is directed into a closed and sealed space of the cylinder chamber from which the media outlet flows.
  • the chamber supplies a quantity of media at the media outlet, the media surface of which, in conjunction with the media pre-pressure, prevents the ingress of bacteria and contaminants.
  • a small dimensioning of the valve closure is possible.
  • the intermediate valve plate on which the spring acts to press the valve body into the upper valve seat, preferably has a sealing strip for sealing the cylinder chamber on the bottom.
  • the upper valve seat lifts off when the force on the intermediate valve plate caused by the medium pressure is greater than the spring force to be held.
  • the opening and closing behavior can be influenced by the transmission ratio of the projected areas and the increasing pressure within the cylinder chamber.
  • the lower valve seat preferably has the function of a stuffing box seal for the media channel, against which the moving lower end of the valve body rests in a sealing manner.
  • FIGS. 1 to 3 show a fluid discharge head 1 for use with a discharge device 2, wherein the discharge device 2 comprises a medium reservoir (not shown) for fluid in which the medium is pressurized or from which the medium is discharged via a media pump 3, in particular a thrust piston pump.
  • the discharge device 2 has a counterpart 4 to which the fluid discharge head 1 can be attached.
  • the discharge device 2 with attached fluid discharge head 1 form a dispenser for, in particular, liquid media.
  • the fluid discharge head 1 and the discharge device 2 can be moved axially relative to one another to actuate the discharge while shortening the dispenser.
  • a spring F causes them to return in the opposite direction to the starting position according to FIG Fig. 1 back.
  • the fluid discharge head 1 comprises a discharge connection 5 with a discharge opening 6, which is provided here on the front side on the discharge connection 5.
  • the discharge nozzle 5 receives an inner sleeve 7 which delimits a media channel 8 which connects to a discharge section 26 of a media guide 34 in the form of adjoining channel sections and / or media spaces located within the fluid discharge head 1.
  • the inner sleeve 7 can also have a connecting member 9 for connection to the counterpart 4 of the discharge device 2.
  • the inner sleeve 7 is pot-shaped at its end 11 facing the discharge opening 6 in order to form a cylinder chamber 12 in connection with the front end 13 of the discharge connection 5, which has the discharge opening 6.
  • the inner sleeve 7 receives a spring-loaded valve body 10 which automatically closes the discharge opening 6.
  • the valve body 10 is designed as a cylindrical piston which is axially displaceable in the cylinder chamber 12 formed by the inner sleeve 7 on the head side.
  • the movable valve body 10 divides the cylinder chamber 12 into an upper and a lower chamber section.
  • the upper chamber section forms a pressure chamber 19, which is connected to the media channel 8 and can be opened and closed towards the discharge opening 6.
  • the lower chamber section serves to accommodate a spring element, in particular a compression spring 20, for pressure loading of the valve body 10 so that it closes the discharge opening 6 with a pretensioning force as a spring-loaded valve body 10.
  • an upper valve seat 14 and a lower valve seat 15 are provided, which can also serve as guide bearings for the piston ends 16, 17. At least one of the two valve seats 14, 15 preferably serves as a guide bearing.
  • the piston of the valve body 10 has an intermediate valve disk 18 which forms a chamber bottom of the pressure chamber 19 connected to the media channel 8. The intermediate valve disk 18 seals the pressure chamber 19 from the upper valve seat 14. The intermediate valve disk 18 also serves to guide the movement of the valve body 10 in the cylinder chamber 12.
  • the intermediate valve disk 18 is designed as a circumferential sealing lip which guides the valve body 10 in the cylinder chamber 12 during its upward and downward movement.
  • the intermediate valve plate 18 forms a chamber bottom of the pressure chamber 19, which is axially movable with respect to the discharge opening 6, namely by moving the valve body 10.
  • the volume of the pressure chamber 19 consequently varies, with the increase in volume when the discharge opening 6 is opened by the medium pressure in the passage 21 so that no germs can penetrate.
  • the reduction in the volume of the pressure chamber 19 when the discharge opening 6 is closed causes a residual medium thrust which prevents the penetration of germs.
  • a media discharge pressure can be set in the pressure chamber 19 which is higher than a spring force of the compression spring 20 that closes the valve body 10 Fig. 1 and Fig. 2 show a discharge opening 6 closed by the valve body 10.
  • the valve body 10 is flowed through by medium, for which purpose the valve body 10 has a passage channel 21 which connects the media channel 8 with the pressure chamber 19.
  • the passage channel 21 is preferably guided centrally through the valve body 10.
  • the passage 21 is formed by a riser pipe section, which preferably ends on the outlet side in an annular groove 22, which transfers the passage 21 into the pressure chamber 19.
  • the lower valve seat 15 preferably has the function of a stuffing box seal in which a spout-like widened piston end 17 of the valve body 10 rests in a sealing manner during a downward and upward movement of the valve body 10.
  • the upper valve seat 14 preferably comprises a slotted bushing 24, which can guide the upper piston end 16 during the opening and closing movement, on the other hand allows the flow to the discharge opening 6 through bushing slots when the upper piston end 16 lifts with a preferably rounded sealing surface 23 and the discharge opening 6 relative to the pressure chamber 19 releases.
  • the discharge opening 6 can have one or more openings, depending on which spray pattern or jet pattern is desired.
  • the bush 24 can form a swirl chamber.
  • the socket 24 is preferably formed on the discharge nozzle 5 and is free-standing for this purpose.
  • the pressure chamber 19 surrounds the discharge opening 6 with an inflow tank of fluid which, between the intermediate valve disk 18 and the upper valve seat 14, provides a level of fluid as an inflow reservoir adjacent to the discharge opening 6. Before the valve body 10 is lifted off the upper valve seat 14, the medium is present with a high initial pressure. This pre-pressure in the pressure chamber 19 is higher than the ambient pressure, so that when the discharge opening 6 is opened, the pending medium emerges immediately.
  • the pre-pressure is preferably set in a range between 1.5 and 2.3 bar.
  • Fig. 3 shows the released discharge opening 6.
  • the valve body 10 has carried out a movement away from the discharge opening 6, as a result of which the sealing surface 23 has lifted off.
  • the medium in the pressure chamber 19 then presses out of the discharge opening 6 through the chamber 28 formed between the head end of the valve body 10 and the front end 13 of the discharge nozzle 5.
  • the chamber 28 is preferably a swirl chamber.
  • the discharge amount is not limited to the volume of the pressure chamber 19, since medium is conveyed and discharged via the passage channel 21 up to the end of a pump or pressure stroke.
  • the opening characteristic is determined by the transmission ratio of the projected areas F1 and F2, F1 being determined by the valve seat 15 for the lower piston end 17 and its diameter, while F2 is determined by the pressure chamber 19 and the diameter of the intermediate valve disk 18.
  • F3 determines the opening width of the discharge opening 6 in the area of the sealing surface 23 at the upper piston end of the valve body 10.
  • the compression spring 20 is inserted into the cylinder chamber 12 and is supported on the one hand on an underside of the intermediate valve disk 18 and on a shoulder 27 of the cylinder chamber 12 adjacent to the valve seat 15.
  • the valve body 10 is axially displaceable against the spring force of the compression spring 20 to open and close the upper valve seat 14.
  • the axial stroke can be limited by a spring compression and the resulting increasing spring force and / or by a stop that can be provided on the lower valve seat 15 .
  • the inner sleeve 7 is fixedly seated in the discharge nozzle 5, it being possible for the attachment to be detachable via a snap connection.
  • the discharge nozzle 5 has finger support surfaces 25 for manual actuation with the application of actuating forces on the counterpart 4.
  • the opening width of the channel 26 is selectable and can be adapted to the desired delivery rate using inserts.
  • the channels 26, 8 and 21 are preferably placed one above the other along a central axis.
  • the discharge nozzle 5 has the shape of a nasal olive in order to be able to be placed on the counterpart 4 as a nose adapter.
  • the discharge nozzle 5 can have other outer contours.
  • FIGS. 4 to 6 show a second embodiment of the fluid discharge head 1, which differs from the first embodiment described above in that the socket 24 is formed here on an inserted component 29 which is fixed between the inner sleeve 7 and the upper end 13 of the discharge nozzle 5.
  • the component 29 can be provided with legs 30 in the manner of a spider, which can serve for positional positioning on the inner sleeve 7.
  • swirl channels 31 can be formed on the bushing integrated in the component 29. A selectable spray pattern can be given to the medium emerging from the chamber 28 via the swirl channels 31.
  • the second exemplary embodiment differs from the first exemplary embodiment in that the media channel 8 connects to a discharge section 26 in the form of a media chamber which is shut off or secured against a backflow of medium via a valve, in particular a ball valve 32.
  • the fluid discharge head 1 according to the invention can be combined with a large number of different discharge and conveying systems 33.
  • a fluid discharge head 1 is provided which can be tested for leaks on the assembly line.
  • This fluid discharge head enables various ways of the pressure drop to be checked. This enables a complete leak test.
  • a fluid discharge head is provided with a discharge nozzle 5 having a discharge opening 6, in which an inner sleeve 7 is arranged, which has a media channel 8 and receives a spring-loaded valve body 10 which automatically closes the discharge opening 6 and which is an axially displaceable piston with an upper 14 and a
  • the lower valve seat 15 for the piston ends 16, 17 is arranged in a cup-shaped end of the inner sleeve 7.
  • the cup-shaped end 11 forms a cylinder chamber 12 for the valve body 10 with an inner passage 21, and the cup-shaped end 11 has a wall opening 42 between the cylinder chamber 12 and an interior 43 of the discharge nozzle 5.
  • the cup-shaped end 11 has a wall opening 42 between the cylinder chamber 12 and an interior 43 of the discharge nozzle 5.
  • Fig. 2 shows the seal points that can be checked and the possible paths for the pressure drop V1, V2 and V3 in the event of leaks.
  • an air pressure P is applied in the direction of the media guide 47 (cf. Fig. 7 ) created. If the intermediate valve disk 18 does not seal against the upper valve seat 14 and / or the valve seat 15 does not seal, air penetrates through the wall opening 42 into the interior 43 and can be measured as a pressure drop V2. Leaks in the area of the valve seat 14 can be measured as a pressure drop V1. Leaks between the inner sleeve 7 and the discharge nozzle 5 can be measured as a pressure drop V3.
  • the fluid discharge head 1 also has an outer cam 44 at the cup-shaped end 11, which cooperates as a stop with a rib 45 on an inner wall 48 of the discharge nozzle 5 when the inner sleeve 7 moves axially upward.
  • the discharge nozzle 5 which serves to forward the fluid discharged from the media container, connects with its media channel 8 to a discharge section 26 in the form of a discharge channel of the counterpart 4.
  • the opening width of the channel 26 is selectable and can be adapted to the desired delivery rate using inserts.
  • the channels 26, 8 and 21 are preferably placed one above the other along a central axis.
  • the discharge nozzle 5 here has the shape of a nasal olive in order to be able to be placed on the counterpart 4 as a nose adapter.
  • the discharge nozzle 5 can have other outer contours.

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Claims (11)

  1. Tête de décharge de fluide destinée à être rapportée à une contre pièce (4) d'un dispositif de décharge (2), munie d'une tubulure de décharge (5) ayant une ouverture de décharge (6) à l'intérieur de laquelle est logé un manchon intérieur (7) ayant un canal (8) pour un milieu et recevant un corps de soupape (10) rappelé par un ressort fermant automatiquement l'ouverture de décharge (6), caractérisée en ce que le canal pour le milieu (8) s'étend à travers le corps de soupape (10) sous la forme d'un canal de passage (21), le manchon intérieur (7) est muni d'un élément de liaison (9) pour s'attacher à la contre pièce (4) et le manchon intérieur est conformé à son extrémité (11) dirigée vers l'ouverture de décharge (6) en forme de pot pour former une chambre de cylindre (12) en forme de pot en liaison avec l'extrémité frontale (13) de la tubulure de décharge (5), le corps de soupape (10) est conformé sous la forme d'un piston cylindrique qui est déplaçable axialement dans la chambre de cylindre (12) formée par le manchon intérieur (7), un siège de soupape supérieur (14) et inférieur (15) étant prévus pour les extrémités du piston (16, 17), et le corps de soupape (10) présentant une disque de soupape intermédiaire (18) qui forme un fond de chambre d'une chambre de compression (19) reliée au canal pour le milieu (8) et dont une pression de décharge du milieu dans la chambre de compression est réglable pour ouvrir le siège de soupape supérieure (14) et est plus grande qu'une force élastique maintenant le corps de soupape (10) fermé, un ressort de pression (20) étant inséré dans la chambre de cylindre (12) et s'appuyant d'un côté sur une face inférieure de la disque de soupape intermédiaire (18) et un épaulement (27) de la chambre de cylindre (12) au voisinage du siège de soupape (1) pour précontraindre élastiquement le corps de soupape (10), la disque de soupape intermédiaire (18) rend la chambre de compression (19) étanche vis-à-vis du siège de soupape supérieur (14) et la disque de soupape intermédiaire (18) est configurée sous la forme d'une lèvre d'étanchéité périphérique qui guide le corps de soupape (10) dans la chambre de cylindre (12) durant son mouvement vers le haut et vers le bas.
  2. Tête de décharge de fluide selon la revendication 1, caractérisée en ce que le siège de soupape inférieur (15) reçoit de manière étanche une extrémité de piston (17) s'évasant à la façon d'un cornet.
  3. Tête de décharge de fluide selon la revendication 1 ou 4, caractérisée en ce qu'au moins un siège de soupape (14, 15) est conformé en palier de guidage pour une extrémité de piston (16, 17).
  4. Tête de décharge de fluide selon l'une des revendications 1 à 3, caractérisée en ce que le canal de passage (21) est guidé de manière centrale à travers le corps de soupape (10).
  5. Tête de décharge de fluide selon l'une des revendications 1 à 4, caractérisée en ce que le siège de soupape supérieur (14) est conformé en coussinet (24).
  6. Tête de décharge de fluide selon la revendication 5, caractérisée en ce que le coussinet (24) est réalisé sous la forme d'un coussinet fendu autoportant en une seule pièce avec la tubulure de décharge (5).
  7. Tête de décharge de fluide selon la revendication 5, caractérisée en ce que le coussinet (24) est réalisé sous la forme d'un composant (29) insérable.
  8. Tête de décharge de fluide selon la revendication 7, caractérisée en ce que le composant (29) insérable est conformé en araignée avec des pattes (30) et comprend des canaux de turbulence (31) dans sa partie supérieure.
  9. Tête de décharge de fluide selon l'une des revendications 1 à 8, caractérisée en ce que la chambre de compression (19) entoure l'ouverture de décharge (6) avec un réservoir d'affluence.
  10. Tête de décharge de fluide selon l'une des revendications 1 à 9, caractérisée en ce que le canal (8) pour le milieu jouxte une section de décharge (26) d'un guide du milieu (34) sous la forme de sections de canal et/ou d'espaces pour le milieu se jouxtant les uns aux autres à l'intérieur de la tête de décharge (1).
  11. Tête de décharge de fluide selon la revendication 10, caractérisée en ce que le canal (8) pour le milieu est connectable à une section de décharge (26) en forme de chambre d'un système de décharge (33) avec une protection contre un flux inverse du milieu au moyen d'une soupape (32).
EP09761388.9A 2008-06-10 2009-05-26 Tête de décharge de fluide Active EP2293880B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008027598A DE102008027598A1 (de) 2008-06-10 2008-06-10 Fluidaustragkopf
DE102008027600A DE102008027600A1 (de) 2008-06-10 2008-06-10 Fluidaustragkopf
PCT/EP2009/003721 WO2009149825A1 (fr) 2008-06-10 2009-05-26 Tête de décharge de fluide

Publications (3)

Publication Number Publication Date
EP2293880A1 EP2293880A1 (fr) 2011-03-16
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EP (1) EP2293880B2 (fr)
JP (1) JP5458328B2 (fr)
CN (1) CN102056677B (fr)
BR (1) BRPI0915020B1 (fr)
CA (1) CA2725608C (fr)
ES (1) ES2609294T5 (fr)
RU (1) RU2488448C2 (fr)
WO (1) WO2009149825A1 (fr)

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Publication number Publication date
WO2009149825A1 (fr) 2009-12-17
ES2609294T5 (es) 2021-12-01
CA2725608C (fr) 2016-09-20
ES2609294T3 (es) 2017-04-19
US8985401B2 (en) 2015-03-24
CA2725608A1 (fr) 2009-12-17
EP2293880A1 (fr) 2011-03-16
RU2488448C2 (ru) 2013-07-27
JP5458328B2 (ja) 2014-04-02
BRPI0915020B1 (pt) 2020-02-04
CN102056677A (zh) 2011-05-11
US20110084100A1 (en) 2011-04-14
RU2010154455A (ru) 2012-08-20
BRPI0915020A2 (pt) 2015-10-27
EP2293880B1 (fr) 2016-09-28
CN102056677B (zh) 2014-02-26
JP2011523894A (ja) 2011-08-25

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