EP1498187A2 - Valve - Google Patents

Valve Download PDF

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Publication number
EP1498187A2
EP1498187A2 EP04015695A EP04015695A EP1498187A2 EP 1498187 A2 EP1498187 A2 EP 1498187A2 EP 04015695 A EP04015695 A EP 04015695A EP 04015695 A EP04015695 A EP 04015695A EP 1498187 A2 EP1498187 A2 EP 1498187A2
Authority
EP
European Patent Office
Prior art keywords
valve
plunger
piston sleeve
valve device
disk
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.)
Granted
Application number
EP04015695A
Other languages
German (de)
English (en)
Other versions
EP1498187A3 (fr
EP1498187B1 (fr
Inventor
Cater Miro
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 EP1498187A2 publication Critical patent/EP1498187A2/fr
Publication of EP1498187A3 publication Critical patent/EP1498187A3/fr
Application granted granted Critical
Publication of EP1498187B1 publication Critical patent/EP1498187B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof

Definitions

  • the invention relates to a valve device for a pressure chamber with a Plunger and a valve plate, wherein the valve plate on the plunger is appropriate.
  • valve devices are in the various in the prior art Embodiments known. They are especially for influencing used by volume flows of gaseous or liquid media.
  • a valve device at an opening of a pressure chamber mounted so that this opening at least partially can be closed by the valve plate of the valve device.
  • the opening of the pressure chamber is not complete closes, it can be a flow of the particular liquid or gaseous medium.
  • the pressure room prevails while a negative pressure or over pressure compared to a pressure environment.
  • Application areas for such valve devices can be found in particular in the area of pumps, compressors and motors as well as in the area of Field of control engineering of media.
  • the object of the invention is a valve device of the above called type to create an improved media flow allows.
  • valve disk is relatively movable attached to the plunger.
  • a rigid, in particular one-piece design of valve plate and plunger as they come out of the The prior art discloses a specific Flow characteristic for the medium when flowing through the Opening of the pressure chamber.
  • This flow characteristic is characterized characterized in that the medium must flow past the valve device and in particular by the valve plate is deflected or deflected.
  • the rigid connection of plunger and valve disc is every plunger position exactly one valve disc position with respect to the opening of the Assigned pressure chamber. This also becomes a predictable Flow characteristic for the medium set.
  • the assignment remains the valve plate position for plunger position variable.
  • a travel for the ram can be reduced are, since the plunger is only the task, the valve disc to lead and bring from a sealing position in an open position. In the sealing position of the valve plate occurs with positive and / or non-positive a provided at the opening of the pressure chamber valve seat in Interaction and can seal the opening. By a suitable tight.
  • By a suitable adaptation of the valve disk to the valve seat can be a self-reinforcing sealing effect between valve plate and valve seat can be achieved.
  • valve plate moves in the already mentioned streamlined position.
  • a rigid arrangement of the Valve plate on the plunger is found by the mobility of the valve disk relative to the plunger a disproportionate release of a flow cross section instead.
  • fluid dynamic effects such as buoyancy and Vortex formation to support the position of the valve disk relative to Actuation of the plunger can influence.
  • a blocking element intended as a travel limit for the valve disk.
  • a blocking element can be an initial and / or end position of the valve disk be set relative to the plunger.
  • a blocking element can in particular as a positive and / or non-positive acting, in one piece or multi-part design geometry may be provided on the plunger.
  • a blocking element can be used in particular as a pin, pin, disk, cone, at least partially circumferential collar projection or undercut be executed.
  • the valve plate can be free relative to the plunger or be provided damped movable, including in particular damping means can be provided.
  • a biasing force be provided by the plunger on the valve plate, the one Movement of the valve disc allows only when overcoming the preload force.
  • a medium channel intended in the plunger a medium channel intended. This can be done exclusively by the particular geometric properties of the valve device specific volume flow be ensured of the medium.
  • the medium through the valve device is to be influenced, flows with suitable attachment the valve device in the opening of the pressure chamber exclusively through the medium channel of the plunger.
  • the medium channel can extend in particular almost completely along the plunger and be at least partially centrally provided in the plunger. Out manufacturing reasons may orthogonal to a ram longitudinal axis extending transverse bores may be provided in the plunger, the allow the inflow or outflow of the medium in the medium channel.
  • the medium channel of the Valve plate closable arranged in the ram This will be a valve function the valve device not by the interaction of the Ventiltellers caused with the valve seat in the pressure chamber, but directly by the relative movement of the valve disk to the plunger.
  • the valve disc is mounted on the plunger so that one or Outlet openings of the medium channel provided in the plunger the valve plate are closed.
  • a piston sleeve provided by at least one elastic return means loaded and mounted relatively movable to the plunger.
  • the piston sleeve is relatively by the elastic return means to the plunger regardless of the respective opening or closing position the valve under bias.
  • elastic return means is in particular an elastically yielding, integrally formed extension on the piston sleeve or a separate spring component intended.
  • a piston sleeve allows the use of the invention Valve device in a pumping device.
  • the piston cuff occurs in interaction with a wall of the Pressure chamber and calls in a peripheral region of the piston sleeve a sealing effect. This closes the piston sleeve one Pressure chamber section close to a pressure environment from.
  • valve spring as a separate component for the application of a valve closing force is provided by the piston sleeve on the valve plate.
  • a separate Valve spring provided a valve closing force of the piston sleeve on the valve plate ensures.
  • the metallic material allows one Storage of spring energy in a small volume, so that the valve device by the valve spring not significantly in size being affected.
  • the use of such metallic springs allows a Mass production of the valve device at a very high quality level.
  • the design of the valve spring as a helical spring with a essentially cylindrical contour is arranged by concentric and generates successive turns of a spring wire.
  • Coil springs are characterized by a compact design and allow for a suitable selection a substantially linear Spring design.
  • a coil spring as well Progressive or degressive acting valve spring are running so that an adaptation to the requirements of the valve device with simple means is possible.
  • valve spring can be used as a pressure or Tension spring are executed, this takes place essentially in Dependence on the arrangement of the valve spring relative to Piston sleeve.
  • a coil spring can in particular several Sections of different diameter, different Slope and / or different wire thickness of the spring wire exhibit.
  • valve spring is on an annular shoulder the piston sleeve and / or the plunger supported.
  • An annular shoulder is especially circulating Designed fret.
  • valve spring is concentric arranged to a return spring of a pump device.
  • valve disk and / or the Piston sleeve made of a plastic material, in particular LDPE or HDPE.
  • LDPE or HDPE plastic material
  • the valve disk and / or The piston boot made of LDPE or HDPE can be a special generate cost-effective and mechanically reliable valve device.
  • plastic injection comes into question.
  • the valve disc has a circumferential Joint zone on.
  • This circumferential joint zone can in particular be designed as a solid-body joint, allowing a mobility an outer portion of the valve disk relative to an inner Range is achieved only by an elastic deformation.
  • the valve plate can make an additional contribution to the valve function contribute to the valve device.
  • the valve plate After overcoming the sealing effect between the valve plate and the medium channel, the valve plate through the collapse occurring forces and thus a larger flow cross-section release. This is a particularly spontaneous medium flow allows.
  • a guide section is on the valve disk intended.
  • the guide section of the valve disk serves to transfer forces from the valve disk to the plunger and inversely.
  • a power transmission takes place in particular by an at least sections, positive and / or non-positive attachment of the valve disk to the plunger in the region of the guide section instead of. It can axial, normal and radial forces or combinations be transferred from it.
  • the guide section as Cylinder wall executed.
  • the guide section especially be easily prepared, especially in the preparation of the valve disk in plastic injection molding.
  • the guide section mitgeformt immediately during the manufacturing process of the valve disk become.
  • he can also by machining be provided subsequently.
  • a corresponding one Guide zone may in particular a cross section have, at least substantially a cross section of the valve disk in the guide section corresponds.
  • Preferred cross sections for the Guide zone are in particular circular, oval or prismatic.
  • printing area ratios between valve plate and piston sleeve designed such that in one Valve closing position one effective area of the valve disk larger than one Effective area of the piston sleeve is.
  • a printing surface corresponds a hydraulically effective surface of the valve disk or the piston sleeve.
  • the pressure surfaces as well as the active surfaces can by a projection of a geometry of the valve disk or the piston sleeve be determined on a projection level.
  • the projection plane is orthogonal to the axis of symmetry of the piston sleeve aligned.
  • the medium in the pressure chamber is through the Actuation of the plunger with the aid of the piston sleeve and the valve disk compressed.
  • There is a uniform pressure build-up in the Pressure chamber instead, the pressure forces on ram, valve plate and piston sleeve leads.
  • Due to the larger effective area of the Valve disc in the valve closing position acts on the valve disc greater pressure than on the piston sleeve. This will be the Valve plate strongly pressed to the piston cuff and increased in the Initial phase of the medium discharge a sealing effect between Valve disc and piston sleeve.
  • valve disk and the Piston sleeve mutually corresponding support surfaces, the provided with radially acting to a pump axis supporting force components are.
  • the piston cuff is a perfect sealing effect in particular with respect to a housing wall of the pressure chamber such as also to be able to ensure against the valve disk, from an elastic Material built. So that the sealing effect against the Housing wall even in unfavorable conditions, in particular can be ensured at high temperatures, the piston cuff in addition to an axially directed closing function at least in the resting position and in the initial phase of the medium discharge also supported radially outwards by the valve disk.
  • valve plate thus prevents uncontrolled deformation of the piston sleeve to the inside and thus provides the sealing effect against a housing wall the pumping device safely.
  • the valve disc has a higher Elastic modulus as the piston cuff on.
  • This will be the Valve disc by occurring forces, especially pressure forces, less deformed as the piston cuff, and thus can its supporting function more effective against the piston cuff.
  • the modulus of elasticity as a ratio of stress to strain is in plastics to be determined only with short-term load, since plastics with longer Stress tends to flow. Therefore, to characterize the Elasticity properties of the valve disk and the piston sleeve Shore hardness can also be specified. In this case, the valve disc has a higher Shore hardness than the piston cuff on.
  • a pump device 1 shown in FIGS. 1, 2 and 4 has a Nozzle head 25 and a medium pump 26, each consisting of a Variety of individual components are constructed.
  • the nozzle head 25 has a guide element 22 provided with a medium conductor 27 is.
  • the medium conductor 27 opens on an outer surface of the guide element 22 in an unspecified nozzle receptacle, in the one nozzle 20 is introduced.
  • the nozzle 20 forms with the guide element 22 a discharge valve for the nozzle head, wherein a sealing effect for the medium conductor 27 by opposing flat sealing surfaces 23 of the guide member 22 and the nozzle 20 is achieved.
  • the Nozzle 20 further has a discharge opening 21 through which a lower Pressurized medium can be released into an environment in particular, a sputtering of the medium takes place.
  • a cover 19 slipped in the area of the nozzle 20 with an unspecified recess for a media passage is provided.
  • the nozzle head 25 is provided with a plunger 2 of the medium pump 26 positively and positively connected and provides at the same time a communicating connection between a medium channel 8 of the plunger 2 and the medium conductor 27 ago.
  • the plunger 2 is as elongated, rotationally symmetric and partially hollow Executed component, wherein the medium channel 8 along an axis of symmetry the plunger 2 réelleckt.
  • the plunger 2 has at a Nozzle head 25 facing away from a transverse bore 9 orthogonal to Symmetry axis of the plunger 2 on.
  • the transverse bore 9 is in turn executed communicating with the medium channel 8.
  • At the plunger 2 are several circumferential ring shoulders such as the ram 13, the Valve spring collar 29 or the stop collar 11 provided.
  • ring shoulders of the plunger 2 are used for positive reception of a Return spring 6, a valve spring 4 and a valve plate 3.
  • Another blocking element for the valve disk 3 is in the form of the stop cone 10 on the plunger 2 provided.
  • the return spring 6 and the valve spring 4 are here designed as concentric with the plunger 2 arranged coil springs, whereby a particularly compact arrangement while at the same time mechanical decoupling of the two springs is possible.
  • the stop cone 10 on the plunger 2 forms in conjunction with corresponding Pressure and sealing surfaces on the piston sleeve 5 both to a Pumping axis of the pumping device 1 radially effective supporting force components as well as axially acting sealing force components in the valve closing position.
  • the valve disk 3 is, as in particular in a shown in Fig. 5, particularly preferred embodiment shown between the Stop collar 11 and the stop cone 10 end positions formed mounted movably in the longitudinal direction of the plunger 2.
  • the valve plate 3 is designed as a rotationally symmetrical plastic part.
  • a cross section the valve plate 3 is of a substantially cylindrical portion determined, in which a centrally arranged bore is provided, as a guide surface 42 against a corresponding, cylindrical Guide zone 43 of the plunger is used.
  • the hole is in her Diameter to an outer diameter of the guide zone 43 of the Tappet 2 tuned, worduch a relative movement of the valve disk in the direction of the axis of symmetry of the plunger 2 is made possible.
  • the umbrella-like contour has a conically shaped Outer surface a sealing surface 14. Furthermore, there is a transition area between cylindrical section and umbrella-like contour a joint zone 15 acting as a solid-body joint is provided.
  • the Joint zone 15 allows a relative movement of the umbrella-like contour to the cylindrical portion of the plunger 2 by an elastic deformation.
  • a piston sleeve 5 which is arranged centrally to the valve plate 3 and slidably is attached to the plunger 2.
  • the piston sleeve 5 has a sleeve collar on a front side facing the nozzle head 25 12, which provided as a support for the valve spring 4 is.
  • a circumferential sealing edge 30 At one of the cuff collar 12 facing away from the has Piston sleeve 5 a circumferential sealing edge 30, which in interaction with a cylinder wall 31 of a pressure chamber 7 a represents longitudinally displaceable seal.
  • the piston sleeve 5 is like the valve disk designed as a rotationally symmetrical plastic part.
  • she has a stepped cylindrical inner bore, which in a conical Sealing area opens, in which also the sealing surface 14 to the valve plate 3 is provided out.
  • An outer contour of the piston sleeve 5 is essentially cylindrically shaped and points to one of the Sealing surface 14 opposite side as a cylindrical annular shoulder executed cuff waistband 12.
  • valve closing position in which the valve disk 3 by the return spring 5 and / or the valve spring 4 is pressed onto the piston sleeve 5
  • the valve disk 3 is greater than the effective area of the piston sleeve.
  • the effective area corresponds to a hydraulically effective surface and can by a projection of a geometry of the valve disk 3 and the piston cuff 5 are determined on a projection plane.
  • the Projection plane is orthogonal to the axis of symmetry of the piston sleeve 5 aligned.
  • the effective area of the Valve plate 3 circular, wherein an inner circular diameter the centric bore in the valve plate 3 corresponds.
  • An outer annulus diameter is determined by the maximum diameter at the valve disk 3 with the piston sleeve 5 in the valve closing position comes into contact.
  • the also annular Acting surface of the piston sleeve 5 in the valve closing position by a diameter of the pressure chamber and by the outer annulus diameter of the valve plate 3 determined.
  • Exemplary is the Active surface of the piston sleeve 5 in Figs. 1, 2, 4 to 9 about 60% of Effective area of the valve disk 3. This has an effect in the initial phase of the medium discharge on the piston cuff also only 60% of those Pressure force acting on the valve disk. Since the valve disk 3 according to the invention Relatively movable attached to the plunger 2, it can conditionally by the pressure force occurring in the direction of the piston sleeve.
  • valve housing 32 At a side facing away from the nozzle head 25 end of the pressure chamber 7 bounded by a valve housing 32, which in a nozzle 18 for Receiving a riser, not shown, opens.
  • a valve ball 17 In the valve housing 32, a valve ball 17 is shown in FIG.
  • the Valve ball 17 rests in the rest position shown in a valve seat 33 and thus forms an inlet valve for the pressure chamber 7, whereby a sealing effect with regard to a potential overpressure within the Pressure chamber 7 is guaranteed.
  • the valve ball 17 can by a Low pressure in the pressure chamber 7 to a cam 16 in the direction of Nozzle head 25 can be moved while giving a flow cross-section free for an inflowing medium.
  • the pump device 1 shown in Fig. 2 has instead of the valve ball 17, a diaphragm valve 34 which, as shown in Fig. 3, a Outer ring 35, a valve body 36 and three guide arms 37 has.
  • the outer ring 35 of the diaphragm valve 34 is in an installed position, as shown in Fig. 2, non-positively in the pressure chamber 7 of Medium pump 26 introduced.
  • the valve body 36 is in the rest position tight in the valve seat 33, but may be in a return stroke of the medium pump 26 by a resulting negative pressure from the valve seat 33 are raised and thus gives the flow cross-section for the inflow of medium from a media container, not shown in the pressure chamber 7 free.
  • valve body 36 through the elastically deformable guide arms 37 centered so that he Lowering the negative pressure back to its original sealing position can return. Furthermore, such a sealing movement is through promoted the elasticity of the deflected guide arms.
  • the valve body 36 and the outer ring 35 are arranged concentrically to one another, the guide arms 37 are each in connecting portions 38 radially attached to the valve body 36 and the outer ring 35.
  • the respectively between The area lying the connecting portions 38 of the guide arms 37 is substantially circular and concentric with the outer ring 35 and provided to the valve body 36.
  • a hat body 39 is provided, the ensures a seal of the valve seat 33 in the rest position.
  • the hat body 39 is pushed out of its rest position and thus gives a cross section for the flow of medium free.
  • the movement of the hat body 39 in the direction of the nozzle head 25 is by cams 16 limited, so that the hat body 39 also in an open position the inlet valve assumes a defined position and at a pressure build-up immediately return to the sealing position in the pressure chamber 7 can.
  • a valve sleeve 41 is provided in the valve housing 32. Due to the one-piece design of the piston rod 40 with the Plunger 2 results in a positive control for the inlet valve, since upon depression of the plunger 2, a thickened portion of the piston rod 40 in sealing action with the valve sleeve 41 occurs. Depending on the arrangement the thickened area on the piston rod 40 can be affect the amount of media to be discharged from the pressure chamber 7, since only when the sealing effect between the piston rod 40 and valve sleeve 41, a pressure build-up in the pressure chamber 7 takes place. Consequently can be a simple adjustment of a dosage of the pumping device 1 to the specific customer needs. Serves as the only parameter for the adjustment of the dosage in this embodiment, the length of the thickened area.
  • the piston sleeve designed as a spring piston collar 46.
  • the spring section is supported on the valve spring collar 29 of the plunger 2 and is by Compressive forces on the piston cuff deformed. It can, depending on Design of the spring portion 44 and a transition zone 45 both a spring effect by bulging as well as buckling of the hollow cylindrical spring portion 44 can be achieved.
  • the valve plate 3 can also be elastic deform, creating an additional flow cross section for the medium is released. This process takes place until either the nozzle head 25 on a non-illustrated stop surface runs up or the front side of the plunger 2 and the valve disc. 3 runs on the inlet valve. Since then no further Pressure builds up more, medium flows to a certain extent Pressure level still through the transverse bore 9 and the subsequent medium channels from. As soon as a minimum pressure is undershot, the Valve spring 4 a transfer of the piston sleeve 5 in a sealing position with the valve plate 3. Once the operating force on the cover is significantly reduced, the return spring 6 causes a movement of the plunger 2 in the direction of the nozzle head 25.
  • All illustrated embodiments are especially for cosmetic Useful purposes.
  • the respective intake valves as well as the valve body and cylinder walls of Pressure chambers translucent, especially transparent, designed. Thereby it is possible to promote a coloring of the, in particular to recognize cosmetic medium.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Check Valves (AREA)
  • Lift Valve (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Safety Valves (AREA)
EP04015695A 2003-07-18 2004-07-03 Valve Active EP1498187B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10334032A DE10334032B4 (de) 2003-07-18 2003-07-18 Ventileinrichtung
DE10334032 2003-07-18

Publications (3)

Publication Number Publication Date
EP1498187A2 true EP1498187A2 (fr) 2005-01-19
EP1498187A3 EP1498187A3 (fr) 2006-07-05
EP1498187B1 EP1498187B1 (fr) 2011-12-28

Family

ID=33462017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04015695A Active EP1498187B1 (fr) 2003-07-18 2004-07-03 Valve

Country Status (10)

Country Link
US (1) US7281644B2 (fr)
EP (1) EP1498187B1 (fr)
KR (1) KR20050009950A (fr)
CN (1) CN100585183C (fr)
AR (1) AR046502A1 (fr)
AT (1) ATE538876T1 (fr)
BR (1) BRPI0402778A (fr)
DE (1) DE10334032B4 (fr)
ES (1) ES2378537T3 (fr)
MX (1) MXPA04006864A (fr)

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FR2910449B1 (fr) 2006-12-22 2009-03-06 Rexam Dispensing Systems Sas Pompe compacte a capacite de rotulage du gicleur par rapport au piston.
US8618164B2 (en) 2009-03-31 2013-12-31 Nuvo Research Inc. Treatment of pain with topical diclofenac compounds
GB2491104A (en) * 2011-05-18 2012-11-28 Ya-Tsan Wang A push-type dispenser nozzle with the spring located outside the fluid path
KR101233080B1 (ko) * 2011-09-20 2013-02-14 (주)연우 스프레이 펌프
CN102705217B (zh) * 2012-05-18 2014-09-17 大众阀门集团有限公司 大口径多瓣式多功能水泵控制阀
US20140113970A1 (en) * 2012-10-22 2014-04-24 Mallinckrodt LLC Covidien Dispensing system
FR2998198B1 (fr) * 2012-11-22 2015-05-29 Aptar France Sas Organe de distribution de produit fluide.
CN104121375B (zh) * 2013-04-27 2017-06-06 王钦廉 一种双向热力膨胀阀
DE202014103981U1 (de) * 2014-08-26 2015-11-30 Rpc Bramlage Gmbh Fingerspraypumpe
EP3209430B1 (fr) 2014-10-20 2020-04-29 Rieke Packaging Systems Limited Distributeurs à pompe
US20160270570A1 (en) * 2015-03-20 2016-09-22 Fleximug Llc Leak proof bottle lid
EP3208577B1 (fr) * 2016-02-17 2022-04-27 HELLA GmbH & Co. KGaA Procédé et appareil de détection du niveau de liquide dans un réservoir de liquide
DE102016114456A1 (de) * 2016-08-04 2018-02-08 Rpc Bramlage Gmbh Fingerspraypumpe sowie Düsenkopf für eine Sprühpumpe
BE1024213B1 (nl) * 2016-11-04 2017-12-13 Altachem Nv Klep
FR3100724B1 (fr) * 2019-09-17 2023-03-24 Aptar France Sas Pompe à précompression haute pression
CN112170034B (zh) * 2020-09-14 2021-08-17 安徽工程大学 一种压力可调型稳压燃油喷嘴

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109070116A (zh) * 2016-01-08 2018-12-21 斯勒冈分配系统公司 泵系统、泵引擎、以及其制作方法
EP3400107A4 (fr) * 2016-01-08 2019-07-31 Silgan Dispensing Systems Corporation Systèmes et moteurs de pompe et leurs procédés de fabrication

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CN1576585A (zh) 2005-02-09
KR20050009950A (ko) 2005-01-26
MXPA04006864A (es) 2005-06-17
ATE538876T1 (de) 2012-01-15
US7281644B2 (en) 2007-10-16
DE10334032A1 (de) 2005-02-17
US20050023302A1 (en) 2005-02-03
EP1498187A3 (fr) 2006-07-05
AR046502A1 (es) 2005-12-14
CN100585183C (zh) 2010-01-27
ES2378537T3 (es) 2012-04-13
DE10334032B4 (de) 2005-06-23
BRPI0402778A (pt) 2005-05-24
EP1498187B1 (fr) 2011-12-28

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