EP0505900A1 - Distributeur de fluides - Google Patents

Distributeur de fluides Download PDF

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Publication number
EP0505900A1
EP0505900A1 EP92104629A EP92104629A EP0505900A1 EP 0505900 A1 EP0505900 A1 EP 0505900A1 EP 92104629 A EP92104629 A EP 92104629A EP 92104629 A EP92104629 A EP 92104629A EP 0505900 A1 EP0505900 A1 EP 0505900A1
Authority
EP
European Patent Office
Prior art keywords
valve
spring
working chamber
chamber
valve body
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.)
Withdrawn
Application number
EP92104629A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Fuchs
Lothar Graf
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.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer 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
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0505900A1 publication Critical patent/EP0505900A1/fr
Withdrawn legal-status Critical Current

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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
    • B05B11/01—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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
    • 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
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • 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
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means

Definitions

  • the invention relates to a discharge device for media, with which in particular one or more media should be applied individually or mixed by manual force, the respective medium having any physical state or any consistency, e.g. can be liquid, gaseous, powdery, pasty or similar.
  • This discharge device is useful in the size to be carried with one hand or for one-handed operation without connection to any external supply line at least partially made of a plastically shaped material, which may be non-metallic, for example an injection-molded plastic, instead of metallic.
  • the discharge device can have a component that is to be moved by deformation or sliding to actuate the discharge, the movement of which moves the medium through a media guide to an outlet opening.
  • this media guide can be formed by the vessel reservoir and the channel forming the outlet opening or by numerous similar media spaces, of which the respective one is only filled with the medium flowing through during discharge operation or is already filled beforehand, so that the already existing one Medium is displaced by further, advancing medium. This results in operating states of the discharge device or for the respective media space, which are determined by working or functional movements of the discharge device or parts thereof.
  • the discharge device can have completely separate media chambers, e.g. for the storage, promotion and / or discharge of separate media streams or separate media or media of different aggregate status.
  • the invention is furthermore based on the object of providing a discharge device of the type mentioned, in which disadvantages of known designs are avoided and which, in particular in at least one function or functional movement, has force support which is well adapted, adjusted and / or adapted to the respective requirements can be achieved with a simple design.
  • an energy or working chamber which is completely sealed in one or all operating states from one or all media guides and is arranged as an energy store for at least one of the mechanical functions, although it can also be suitable as an energy store for that at least part of the fluid contained therein is fed to one or more media guides.
  • the energy store in the form of a chamber which forms a pressure chamber in the tightly closed state can be used to support numerous functional movements of the discharge device, e.g. those of valves, return movements of the component to be moved and others are used.
  • a very simple design results if the working chamber is at least free from such valves which, in contrast to a pure filling valve or a safety valve, are opened or closed in any operating state.
  • At least one spring of the discharge device can thus be designed as a gas spring, which advantageously has a chamber space to be narrowed by deformation instead of components that can be moved in a sliding manner.
  • the gas spring is expediently used to support a return movement, the function supported in any case being a valve movement, a conveying movement for the medium or other.
  • the working movement of the working chamber can also be used to dampen a movement or the like.
  • the working chamber is made up of an essentially one-piece, e.g. is formed by vacuum deformation hollow body which has two support parts for connection to the components to be moved against each other, the two support parts are expediently formed in one piece with each other.
  • these support parts can be stiffened by profiling and / or cross-sectional reinforcement in such a way that they would be dimensionally stable even without support on the discharge device against the forces acting on them.
  • At least one support part can be formed directly by the outside of a tightly closed or disc-shaped chamber end wall, the support surface expediently lying in the transition area to the chamber jacket, so that it is axially securely supported in a region corresponding to its continuous width.
  • the working chamber or its chamber wall is advantageous to arrange the working chamber or its chamber wall partially or completely within at least one of the spaces which are formed by the discharge device and the media guide, so that the working chamber is at least flushed with the medium during operation.
  • valve bodies which can be moved against one another according to the invention can have at least two valves, in particular an outlet valve and an inlet valve which is axially spaced therefrom in part or in one piece with one another and possibly with a valve spring be formed, which is expediently formed by a chamber wall.
  • At least one spring in particular a valve spring located at a distance from the valve body to be moved by it, can be designed partially or completely as an approximately flat disc spring, which is expediently formed by an end wall of the chamber, which at the same time forms the supporting part, so that it deform essentially independently of the deformation of the chamber shell and can still be under the chamber pressure.
  • a filler body can be provided in at least one area of the media guide which, in contrast to a dimensionally stable displacement body which acts by means of a relative movement, engages in approximately the same area of the media guide in every operating state, but in this way its specific volume is deformable, that it is changed in its specific filling volume per unit of the extent which it has approximately parallel to the associated section of the media guide.
  • the filler body can have one or more depressions on the outer circumference, which are to be narrowed by elastic deformation depending on the respective operating state, so that the medium in them is displaced and is conveyed, for example, in the discharge direction.
  • the discharge device according to the invention can consist of very few individual parts, e.g. only five individual parts or including a cover cap for the discharge opening consist of six individual parts made of plastic, two to all individual parts expediently consisting of the same materials which can be reprocessed together or as a mixture for materials for the production of other products.
  • the discharge device 1 has a on a media storage, e.g. a bottle receptacle, an aerosol can or the like.
  • Base 2 to be fixed with a pump 3 then protruding through the neck of the vessel into the media store and an actuating unit 4 projecting freely outwards, with which in the case of a pump the pump movement and in the case of a pressure store only the opening movement of an exhaust valve is to be carried out manually.
  • the unit 4 protruding into the neck of the vessel has an exposed head which can be designed as a discharge and / or actuating head 5 and for this purpose has a discharge opening 8 for the medium and / or a handle 6.
  • a spigot 7 protrudes outward beyond the plate-shaped handle 6 lying transversely to the actuation direction and is penetrated by the discharge opening 8 in the end region.
  • the base body 2 has a multiply stepped sleeve-shaped housing 11 and at its further end a cover 12 which engages with a hollow sleeve in the inner circumference of the housing 11 and engages with the outer surface of the outer shell such that a positionally rigid connection is provided.
  • the one-piece housing 11 has a riser pipe 13, which may be made in one piece with it, via which the pump 11 or the discharge opening 8 is supplied with medium from the bottom region of the media store.
  • the base body 2 is to be fastened to the media store with a crimp ring, a plug connection, a screw connection or the like and here has a fastening cap 14 for gripping over the neck of the vessel, which is in one piece with the lid 12 and a sealing flange 15 projecting annularly over the inside of its cap end wall is designed to seal the memory to the outside.
  • the housing 11 forms, with a longitudinal section adjoining the cover 12, a pump cylinder 16 in which an annular pump piston 17 can be displaced with the handle 6 in such a way that a pump chamber delimited by these components is narrowed for the discharge of the medium and expanded for suction from the memory .
  • the discharge from the pump chamber 18 takes place via an outlet channel 19 leading to the discharge opening 8, essentially lying in the axis 10 or in an actuating plunger 20, and is controlled via an outlet valve 21 located inside the housing 11 or the cover 12.
  • the actuating plunger 20 connects the actuating head 5 to the pump piston 17 and passes through the central opening of the cover 12, the actuating plunger 20 being attached to the actuating head 5 essentially rigidly in position.
  • the valve 21 has two valve bodies 22, 23, which are essentially annular in cross-section and can be displaced against one another with almost no radial play, both of which form part of the actuating plunger 20 or can be displaced with the latter.
  • the inner valve body 23 is rigidly connected to the actuating head 5 in that it is by a component or a structure 26 of a carrier component 24 is formed, the other structure 25 of which is firmly connected to the connector 7 in the region of the free end.
  • the outer valve body 22 is movably mounted approximately parallel to its axis 10 or to the actuation direction, whereby it consists of a material which is flexible in terms of bending, expansion and / or compression with regard to its functional movements by means of a valve component 27.
  • valve body 22 thus formed in one piece with the above-mentioned components is formed by an annular region which is only approximately the same length as its wall thickness and which is expediently located inside the outer jacket of the pump piston 17, between its two mutually facing annular sealing lips or approximately in the plane of the end face of the one facing away from the media inlet Ring sealing lip lies.
  • the approximately rectangular and equilateral triangular valve body 22 connects in the area of an imaginary profile corner zone directly in one piece to a valve spring 32 which is at least partially annular in cross section and which expediently has exactly the same internal width as the valve body 22 in the connection area or approximately over its entire length, so that there is a consistently constant, gradation-free inner circumference.
  • the constant outer circumference 33 of the valve spring 32 over its length adjoins the base edge of the profile of the valve body 22, which extends continuously and approximately straight through the triangular profile to the inner circumference of the piston skirt.
  • the inner circumference of the component 24 or 25 forms a plug-in receptacle 35 for the structure 26 which, as a plug-in pin, also extends over the length of the valve spring 32 and approximately the length of the valve body 22.
  • the plug pin 26 is provided on the outer circumference with longitudinal grooves, which are covered on the outside by the valve body 22 and the valve spring 32 and thereby form channel sections of the outlet channel 19 which are closed over the circumference and adjoin the valve 21 or the pump chamber 18.
  • the receptacle 35 can be at most as long as or shorter than its width.
  • the plug pin 26 connects in one piece to the inner valve body 23, which is cap-shaped or hollow in cross section and whose cap end wall is formed by the end of the plug pin 26.
  • the outer circumference 38 of the valve body 22 is flared to the media inlet.
  • This conical section forms a valve body of a vent valve for the storage vessel, the other valve body is formed by the inner end of the hollow sleeve of the cover 12 and which opens in a path-dependent manner at the start of the discharge operation, so that air from the storage vessel through an opening in the housing 11 and between the Inner circumference of the cover 12 and the valve spring 32 can reach the outside.
  • the outer circumference 38 strikes the inner edge of the cover 12, so that an axial stretching force and a radially inward force in the sense of the closing of the valve 21 act on the valve body 22 and the valve spring 32.
  • the maximum stroke of the actuating plunger 20 is less than the length of the Elastic shaft section in the starting position lying completely inside the cover 12 valve spring 32, so that it is still guided with part of its length within the cover 12 at the end of the stroke.
  • a longitudinal section of the constant sleeve profile which adjoins the valve body 22 forms the part of the valve spring 32 which is elastically deformable by bulging, while a subsequent section can at most be deformed by slight axial compression within the cover 12.
  • the valve body 23 forms with its internally and externally frustoconical cap shell of approximately constant wall thickness on the outer circumference a shoulder-shaped or conically expanded valve seat 41 which, with the annular valve closing surface 42 of the valve body 22, delimits a completely lockable, annular valve opening and a stop position for the The closed position of the valve 21 is determined.
  • the closing surface 42 is delimited by the flanks of the triangular profile of the valve body 22 which are approximately at right angles to one another and expediently approximately sharp-edged, the flank which is approximately at right angles to the axis 10 merging into the inner circumference of the conical section which connects the valve body 22 directly to the piston skirt and the outer circumference 38 has.
  • the narrower end of the valve seat 41 directly adjoins the equally and constantly wide outer circumference of the piercing mandrel 26.
  • the valve spring 32 is surrounded in its starting position over its entire length and in the pump stroke end position about half of it by a support 43 of the base body 2, which is formed by the inner circumference of the cover 12 is, on which the actuating plunger 20 is slidably guided and which can be provided with longitudinal grooves for ventilation.
  • the associated outer circumference 33 extends from the valve body 22 over such a large length with a constant width that it is guided over the entire length of the support 43 even in the stroke end position, which extends from the inner end of the hollow sleeve to the outer end face of the cover 12.
  • the support 43 lies with a smaller gap distance from the material thickness of the valve spring 32 compared to a further support 44, which is formed by the outer circumference of the section of the plug-in mandrel 26 adjoining the receptacle 35, so that this section is essentially in all operating states compared to the inner circumference of the Valve spring 32 and / or the valve body 22 is non-contact.
  • valve body 22 can only be lifted axially from the valve seat 41 after a certain displacement of the unit 4 for valve opening, namely when the valve spring 32 has been released from the support 43 over a sufficiently long length, the adjustment being expediently provided such that this is only against or at the end of the pump stroke.
  • the valve spring 32 can then deflect outward only in a radial direction, namely because of the support 44 running with it, with its jacket being elastically bulged until the pump stroke is ended by a stop.
  • the valve 21 is suitable for both a path-dependent and a pressure-dependent control, it being able to work both as a slide valve and in the manner of a hose valve.
  • path-dependent opening the valve body 22 is expediently displaced via a stop 57 against which the associated component strikes during the actuating movement of the actuating head 5 and which can be formed by an inner shoulder at the end of the cylinder 16 against which the pump piston 17 runs.
  • the valve spring 32 In the closed or initial position, the valve spring 32 can be completely free of tension.
  • the structure 25 of the component 24 is formed in one piece with a shaft portion 47 adjoining the valve spring 32, which lies over most of its length essentially without contact and deformation within an outer jacket of the nozzle 7 and with its outer end a nozzle core 48 or one Twist device forms at the inner end of the nozzle bore forming the discharge opening 8.
  • This nozzle core 48 projects axially with reduced width over an end section of the shaft section 47, which is firmly inserted into a plug-in sleeve 49 which lies within the outer casing of the connector 7 and is firmly connected to it in one piece.
  • the receptacle 49 forms at its outer end or in the transition region to the outer jacket a nozzle cap 58 which is formed in one piece with the connector 7 and on the inside of the associated cap end wall penetrated by the outlet opening 8 is the nozzle core 48, which is expediently profiled 59 on the associated end face for swirl generation is provided in such a way that the inside of the cap end wall can be completely flat and free of profiles or shoulders.
  • the outlet duct 19 is only enclosed between the plug mandrel 26 and the nozzle core 48 by the component 25 over the entire circumference and then has the area of the nozzle core 48 flat oval cross section.
  • the inner or outlet channel 19 emerges radially from the shaft section 47 against the inner circumference of the nozzle cap and is deflected axially along the outer sides of the nozzle core 48 and then again radially inward along the profiles 59 led to the outlet opening 8.
  • the socket 49 can be made very short or the shaft portion 47 approximately over its entire length or between the mutually facing end faces of the socket 49 and the cover 12 or the base body 2 and the housing 11 without contact within the Neck 7, the handle 6 and the cap 9 are.
  • the plug end 76 of the actuating plunger 20 lying within the plug-in sleeve 49 is expediently reduced in the outside width compared to the adjoining or the remaining longitudinal region of the shaft section 47.
  • the actuating plunger 20, including the valve 21 and other components, can form a preassembled module 50 which can be inserted into the cover 12 from the inside and then connected to the actuating head 5.
  • This assembly contains or consists of two preassembled subassemblies 51, 52, one of which is in one piece and contains the support structure 25 and the valve component 27.
  • the other assembly 52 can also be formed in one piece throughout and, in addition to the core body 26 or the valve body 23, also contains a return spring 53 for the unit 4 and / or a valve body 54 of an inlet valve 55 of the media inlet, the valve seat 56 of which is formed by an inner annular shoulder of the housing 11 is formed.
  • the return spring 53 which is useful as a bellows and / or gas spring is formed, lies approximately in the axis 10 within the housing 11 so that it engages in the pump piston 17, the pump chamber 18 and / or a narrower housing section adjoining the cylinder 16, its abutment relative to the base body 2 being formed by the valve seat 56 can be.
  • an elastically deformable shaft section formed here by the valve spring 32 is guided directly on the base body 2, namely on the housing 11 or on the cover 12, with its outer circumference on the support 43.
  • the end of this shaft section 32 belonging to the outer end of the support 43 lies in each operating position between the ends of the support 43, the length of which is greater, in particular approximately twice as large, as the outer width of the shaft section 32.
  • the support 44 lies at least over the largest part of the length of the shaft section 33 essentially in any operating position at least at a gap distance from the shaft section 32, which could, however, be deformed radially inwards by this gap distance under compression load at the beginning of the pump stroke, but then immediately would be determined by the support 44.
  • This is achieved in particular in that the shaft section lying within the support or sliding guide 43 has successive sections in the longitudinal direction of different inner widths, of which a narrower section 35, which is shorter than its width, establishes the fixed connection with the elastically compressible plug pin 26.
  • the sliding guide 43 extends with its inner end in the starting position into the area of the outlet valve 21 and the vent valve 74 surrounding it, whereby it acts on the conical outer circumference 38 under the force of the return spring 53, so that the valve bodies are loaded in the sense of their closing movement and are exactly centered and the stem section 32 is subjected to a stretching force.
  • the connection of the outer circumference 38 to the pump piston 17 can be such that the connecting section between the piston lip or pistons and the plunger is slightly deformed radially inwards by the force mentioned, so that the piston lips correspondingly with respect to their contact pressure on the cylinder raceway in the starting position be relieved without the tight system being lifted.
  • This longitudinal section 75 which in the starting position extends approximately over half the length between the slide guide 43 and the plug-in sleeve 49, merges into a weaker longitudinal section which is narrowed only in the outer width and which ends with the hollow plug-in pin 76 for receiving in the plug-in sleeve 49 forms.
  • the return spring 53 delimits within a chamber shell 61 and two end walls 62, 63 a tightly closed working chamber 60 which is filled with air in the starting position under excess pressure and forms a compression chamber.
  • a cap-shaped end wall 62 forms the valve body 23, and the end wall 63 located at the media inlet is approximately flat.
  • the chamber jacket 61 is formed as a substantially uniform bellows over its length, the longitudinal sections of which, alternately oppositely frustoconical, can be moved against one another until their inner and / or outer surfaces are fully in contact. One of these longitudinal sections adjoins the end of the cap jacket of the end wall 62 in one piece, and the other longitudinal section accordingly connects to an approximately cylindrical jacket edge of the end wall 63.
  • the end of the spring 53 located at the actuating plunger 20 is thereby fixed by means of the plug-in pin 26 or is supported on the return stroke also by means of the valve seat 41 with respect to the unit 4.
  • the other end is supported with the outer circumference of the outside of the end wall 63 on shoulder surfaces 64 which protrude beyond the inside of the housing 11 in a ring around the axis 10 and are expediently formed by projecting end sections of longitudinal ribs 65 on the casing of the housing 11, which Guide or center the chamber jacket 61 on the outer circumference.
  • the shoulder surface 64 extends only approximately over the radial extent between the narrowest inner circumference and the widest outer circumference of the chamber shell 61, so that a central field of the end wall 63 with a larger radial extension remains unsupported.
  • the working chamber 60 or the chamber jacket 61 lies with the largest part of the longitudinal extent within a housing space 66 narrowed with respect to the pump chamber 18, which adjoins the stop 57 and passes essentially to the valve 55 and is provided with the longitudinal ribs 65 over its length is.
  • the remaining part of this length lies within the pump chamber 18 or the pump piston 17, the inner circumference of which in the pump stroke end position practically forms a continuation of the inner circumference of the housing space 66.
  • the spring 53 constitutes a hollow filling body 70 which is tightly closed within its outer boundaries with respect to the spaces mentioned and which essentially extends the housing space 66 over its entire length onto a shell-shaped gap space 67 between the outer periphery of the chamber shell 61 and the inner periphery of the shell of the housing 11 limited.
  • a corresponding, but slightly further gap space is also formed in the pump chamber 18 and in the pump piston 17.
  • this forms on the outer circumference a multiplicity of annular, axially one behind the other recesses 68, the bottom of which is delimited in axial section by two flanks lying at an angle to one another and in cross section radially outwards or to the longitudinal channels delimited between the longitudinal ribs 65 69 are expanded, which remain free for the flow in each operating state of the packing 70.
  • the spring 53 is compressed during the pump stroke, the depressions 68 are narrowed and the medium located in them becomes through the gap spaces or the longitudinal channels 69 Valve 21 displaced. As a result, the housing space 66 can be almost completely emptied during the pump stroke.
  • the working chamber 60 or the filler 70 or the entire associated assembly 52 suitably consists of a material which is resiliently elastic with respect to bending, expansion and / or compression, whereby the assembly 51 can also consist of a similar or identical elastic material .
  • the assembly 51 can also consist of a similar or identical elastic material .
  • the other end of the return spring 53 is formed in one piece with the plate-shaped valve body 54, which connects via a shaft 71 to the associated end wall of the hollow body, is at a distance from this end wall and, instead of being self-resilient, can be dimensionally stable at least under the pressure loads that occur.
  • the return spring 53 also simultaneously forms a valve spring formed in one piece with the valve body 54, against which the valve body 54 forms an axial opening movement executes under which it lifts axially from the valve seat 56 at a corresponding pressure difference, so that the medium can pass from the riser pipe 13 past the valve body 54 into the other housing space and fill the space limited between the outer circumference of the return spring 53 and the casing of the housing 11, without entering the inside of the outer periphery of the return spring 53.
  • the gas or air pressure in the cavity of the return spring 53 its spring characteristic can be precisely adjusted.
  • the flat disk-shaped valve body 54 is not loaded by the same return spring 53 for the unit 4, which is essentially defined by the foldable chamber jacket 61, but by a separate, disk-shaped or plate-shaped valve spring 72, which is essentially formed only by the end wall 63 and is therefore in one piece is formed with the return spring 50.
  • the valve spring 72 In the starting position, the valve spring 72 is curved outwards in the shape of a truncated cone to the center, in which it merges on the outside into the central shaft 71, over the outer circumference of which both the valve spring 72 and the valve body 54 protrude far.
  • valve spring 72 can thereby be pressed inward against its elastic tension and also against the gas pressure in the working chamber 60, taking the valve body 54 against the shoulder surfaces 64, practically rolling off the shoulder surfaces 64 and the valve body 54 with its flat valve closing surface from the valve seat 56 takes off.
  • valve seat 56 is expediently formed by a relatively sharp edge surface, which in cross section is delimited by two flanks lying approximately at right angles to one another and is annular. It surrounds at an radial distance an inlet channel which is formed by the end of the inner circumference of the riser pipe 13. Due to the design described, the valve body 54 also consists of the elastic material mentioned, while the valve seat 56 consists of a much harder material. The inner longitudinal edges of the projections for the shoulder surfaces 64 simultaneously form longitudinal guides for the outer circumference of the valve body 54, so that the latter can lift off the valve seat 56 essentially without tilting movements parallel to the axis 10 and thus uniformly over its entire circumference.
  • the riser pipe 13 connects to the section belonging to the housing space 66 via a truncated cone-shaped housing section having the projections on the inside and is formed in one piece with the housing over its entire length required for the discharge operation or to the bottom of the storage vessel.
  • the connector 7 can be closed with an attached, one-piece protective cap 73, which expediently extends to the actuating pressure surface of the handle 6 and is narrower than this.
  • All described configurations, components, units, rooms or functions can only be provided once or in a plurality of two or more, e.g. in order to be able to effect successive and / or simultaneous multiple fluid discharge from possibly multiple separate fluid or pressure sources from one and / or several outlet openings.

Landscapes

  • Reciprocating Pumps (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP92104629A 1991-03-28 1992-03-18 Distributeur de fluides Withdrawn EP0505900A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4110302A DE4110302A1 (de) 1991-03-28 1991-03-28 Austragvorrichtung fuer medien
DE4110302 1991-03-28

Publications (1)

Publication Number Publication Date
EP0505900A1 true EP0505900A1 (fr) 1992-09-30

Family

ID=6428465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92104629A Withdrawn EP0505900A1 (fr) 1991-03-28 1992-03-18 Distributeur de fluides

Country Status (3)

Country Link
EP (1) EP0505900A1 (fr)
JP (1) JPH05170294A (fr)
DE (1) DE4110302A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547439A1 (fr) * 1991-12-16 1993-06-23 SAR S.p.A. Distributeur pour substances liquides crémeuses ou pateuses
EP0762010A1 (fr) * 1995-09-12 1997-03-12 Friedhelm Piepenstock Ressort de compression hélicoidal
EP0791399A1 (fr) * 1996-02-22 1997-08-27 Caideil M.P. Teoranta Dispositif de décharge d'un fluide
EP0781607A3 (fr) * 1995-12-27 1997-09-10 Titan Tool Inc Nez de pulvérisateur comprenant une buse insérée positionable par rotation
EP0938933A2 (fr) 1998-02-25 1999-09-01 Ing. Erich Pfeiffer Gmbh Commande de la décharge pour un distributeur de fluide
CN100506393C (zh) * 2003-06-25 2009-07-01 艾里希普费弗工程师有限公司 至少一种介质的定量配料装置
WO2018202645A1 (fr) * 2017-05-01 2018-11-08 Dispensing Technologies B.V. Dispositif, système et procédé de distribution d'un liquide a partir d'un contenant
RU2775420C2 (ru) * 2017-05-01 2022-06-30 Диспенсинг Текнолоджиз Б.В. Устройство, система и способ дозирования жидкости из емкости

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DE10229618A1 (de) 2002-06-25 2004-01-29 Ing. Erich Pfeiffer Gmbh Dosierpumpe, Verfahren zu ihrer Herstellung und Vorrichtung zur Durchführung des Verfahrens

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US5363993A (en) * 1991-12-16 1994-11-15 Sar S.P.A. Plastic dispenser for liquids or other substances
EP0547439A1 (fr) * 1991-12-16 1993-06-23 SAR S.p.A. Distributeur pour substances liquides crémeuses ou pateuses
EP0762010A1 (fr) * 1995-09-12 1997-03-12 Friedhelm Piepenstock Ressort de compression hélicoidal
EP0781607A3 (fr) * 1995-12-27 1997-09-10 Titan Tool Inc Nez de pulvérisateur comprenant une buse insérée positionable par rotation
KR100466063B1 (ko) * 1996-02-22 2005-04-14 카이데일 엠. 피. 테오란타 매체방출장치
EP0791399A1 (fr) * 1996-02-22 1997-08-27 Caideil M.P. Teoranta Dispositif de décharge d'un fluide
US5938084A (en) * 1996-02-22 1999-08-17 Caideil M.P. Teoranta Dispenser for media
AU715741B2 (en) * 1996-02-22 2000-02-10 Caideil M.P. Teoranta Dispenser for media
EP0938933A2 (fr) 1998-02-25 1999-09-01 Ing. Erich Pfeiffer Gmbh Commande de la décharge pour un distributeur de fluide
CN100506393C (zh) * 2003-06-25 2009-07-01 艾里希普费弗工程师有限公司 至少一种介质的定量配料装置
WO2018202645A1 (fr) * 2017-05-01 2018-11-08 Dispensing Technologies B.V. Dispositif, système et procédé de distribution d'un liquide a partir d'un contenant
US11161132B2 (en) 2017-05-01 2021-11-02 Dispensing Technologies B.V. Device, system and method for dispensing a liquid from a container
RU2775420C2 (ru) * 2017-05-01 2022-06-30 Диспенсинг Текнолоджиз Б.В. Устройство, система и способ дозирования жидкости из емкости

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JPH05170294A (ja) 1993-07-09
DE4110302A1 (de) 1992-10-01

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