EP0821775B1 - Konstruktion eines einlassventils - Google Patents

Konstruktion eines einlassventils Download PDF

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Publication number
EP0821775B1
EP0821775B1 EP19960911023 EP96911023A EP0821775B1 EP 0821775 B1 EP0821775 B1 EP 0821775B1 EP 19960911023 EP19960911023 EP 19960911023 EP 96911023 A EP96911023 A EP 96911023A EP 0821775 B1 EP0821775 B1 EP 0821775B1
Authority
EP
European Patent Office
Prior art keywords
valve
valve member
valve assembly
inlet valve
frustoconical
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.)
Expired - Lifetime
Application number
EP19960911023
Other languages
English (en)
French (fr)
Other versions
EP0821775A1 (de
Inventor
Jean-Luc Simon
Claude Jouillat
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 France SAS
Original Assignee
Valois SAS
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 Valois SAS filed Critical Valois SAS
Publication of EP0821775A1 publication Critical patent/EP0821775A1/de
Application granted granted Critical
Publication of EP0821775B1 publication Critical patent/EP0821775B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/108—Valves characterised by the 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
    • B05B11/01—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1087—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • 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
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7866—Plural seating
    • Y10T137/7867—Sequential
    • 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
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7908—Weight biased
    • Y10T137/7909—Valve body is the weight
    • Y10T137/7913—Guided head
    • Y10T137/7915—Guide stem
    • Y10T137/792—Guide and closure integral unit

Definitions

  • the present invention relates to an intake valve assembly which can be integrate into a fluid or pasty product distribution device.
  • this kind of valve assembly is inserted in a pump body, in the lower part of the latter to fulfill the function of intake valve in order to isolate the pump chamber of the reservoir containing the product to be dispensed during the distribution.
  • a very common type of intake valve assembly uses a ball metallic as a dynamic member of the valve which comes into tight contact under the effect of the pressure exerted on the fluid in the pump chamber, with a valve seat which is generally an integral part of the pump body.
  • the ball is held in a limited space by a valve holder which is generally inserted by force in the bottom of the pump body.
  • the valve holder is formed with a passage which makes communicate the aforementioned limited space with the pump chamber itself.
  • the ball is free to move in this limited space without being able to obstruct the passage Communication. It is only during the distribution phases, i.e. pressurizing of the fluid product, that the ball is pressed against its seat.
  • the ball On a physical level, the ball is made of a material having a high density, in this case steel.
  • the weight of the ball is therefore relatively large.
  • the ball In its dynamic behavior, when the distribution device is used to upside down, i.e. the valve seat at the top, the ball does not respond immediately under pressure and takes a while to gain a seat valve. Indeed, the pressure must be sufficient to overcome the weight of the ball.
  • the difficulty that the ball encounters in moving up on its seat is all the more more increased by the fact that the ball has an advantageous geometry on the plane hydraulic.
  • the surface quality of the metal ball and its shape offer only very little resistance to fluid.
  • the ball constitutes a metallic element which prohibits recycling of the distribution device that incorporates it, unless it is dismantled prior.
  • a current trend is towards the elimination of metallic elements in mainly plastic products as is the case with a pump.
  • intake valve There are other types of intake valve that do not use a ball as that dynamic organ.
  • some dispensing devices incorporate a valve in the form of an elastomer washer which is trapped in a space restricted. When the pressure increases in the distribution chamber of the device, the washer seals tightly on the intake port. The waterproof contact comes from the simple axial application of the washer on the intake port. So, to obtain a good seal, it is necessary that the pressure exerted on the washer is large enough.
  • valve member Ball, washer, etc.
  • a valve member is confined in a volume restricted by a valve holder.
  • the valve member is not linked to any part and can float in the volume associated with it.
  • the object of the present invention is to remedy the drawbacks of the prior art aforementioned by defining a set of intake valve capable of making a contact waterproofing quickly and of very good quality.
  • the valve member must respond immediately by plugging the intake port at the start of the distribution.
  • the valve member must also be able to return to its valve seat. in all cases, that is to say both when holding the device to the place, upside down, or lying.
  • Another object of the invention is to be able to use a classic valve holder normally adapted to receive a ball. This element being mass produced at low cost, the price of the set will be lower.
  • the organ of valve which replaces the ball must also be able to be manufactured at a cost less than that of a ball, while providing an improved seal.
  • the valve assembly of the invention must have a seal whose quality improves with increasing pressure in the pump chamber.
  • the present invention relates to a valve assembly inlet integrated into a fluid dispenser contained in a reservoir for isolating a pumping chamber from said reservoir at least during a distribution phase of said product corresponding to an increase in pressure in said pumping chamber, said valve assembly comprising a valve member having a contact area coming into leaktight contact with a valve seat substantially frustoconical shape at least during said distribution phase, the area of contact of the valve member forming part of a substantially shaped surface frustoconical, characterized in that the solid angle of the frustoconical surface is greater than that defined by the valve seat so that the contact area is at least first defined by a circle when the valve member is at rest, and in that the surface frustoconical is formed by a substantially flexible wall, so that the area of initially circular contact extends to a truncated cone by elastic deformation during of the distribution phase.
  • the valve seat of the invention is typically that of a ball valve. It is formed by the mouth of the intake channel which is part integral with the pump body.
  • the valve member meanwhile, is very different from a ball. Because the truncated cones defined by the seat and the valve member are different, an annular contact is created. At rest, when the device is held right with the seat down, this annular contact exists. It is however very different from that of a ball. Indeed, contact with a ball is of the circle-tangent type. so that contact with the valve member according to the invention creates a frustoconical volume in point between the seat and the frustoconical surface. The gap between the seat and the surface tapered is so weak that fluid can accumulate there by capillary action on a fairly large distance.
  • This accumulated fluid promotes the maintenance of the valve member on his seat by increasing their cohesion. This is not the case for a ball where only a very small amount of liquid can be accumulated by capillary action.
  • the increase in surface tension obtained with the valve member according to the invention comes directly from the difference in solid angle between the surface frustoconical and the valve seat. This increased surface tension increases significantly the quality of the seal, especially at rest, where the fluid retained by capillarity plays the role of fluid plug.
  • the annular sealing contact which exists when the device is at rest is transforms into frustoconical contact during the distribution phase.
  • a force is exerted on the flexible wall which has the effect of deforming it by pressing it against the valve seat.
  • the higher the pressure the larger the contact area.
  • the tightness increases so with the pressure.
  • due to the difference in solid angle and the capacity deformation the contact at the level of the original annular contact zone is made more supported.
  • the elasticity of the wall increases the tightness by exerting a no longer axial, but radial force. The elasticity thus makes it possible to transform a pressure exerted axially in a reaction force which acts radially.
  • the valve member comprises a corolla extending towards the outside in a frustoconical manner, of which a frustoconical outer wall defines said frustoconical surface.
  • the pressure which is exerted on the corolla tends to deform it outwards and presses the tapered surface even more against the seat of valve, particularly at its largest diameter corresponding to the area original ring contact.
  • the elasticity of the corolla associated with the pressure which stresses radially outwards make it possible to synergistically improve the seal of the valve.
  • the valve member comprises a rod having a lower end, the corolla being formed at said lower end.
  • the organ of flap is in the form of a mushroom or an inverted umbrella.
  • the concave annular shape defined by the outside of the corolla has good fluid grip characteristic, so that the valve member responds so instantaneous to the flow of fluid which is created at the start of the dispensing phase.
  • the valve member is made of plastic, it offers only a very low inertial resistance.
  • valve member is limited in displacement by a valve holder between a closed position and a suction position.
  • the valve holder preferably be a conventional valve holder normally adapted to receive a ball.
  • the upper end of the rod is engaged in the passage of the valve holder. This keeps the valve member always substantially in the axis, because the rod cannot disengage from the passage.
  • the corolla includes a cylindrical end portion in the extension of the frustoconical wall.
  • This cylindrical part fulfills a double role. First, it protects the frustoconical surface, and more particularly the area of larger diameter which corresponds to the original annular contact area. Secondly, this cylindrical part can serve as a sliding pad with its upper surface at the outlet of the dispensing bowl to obtain an orientation of the valve member.
  • the rod comprises two cylindrical sections of diameters different connected by a transition surface.
  • the transition surface serves as a stop for the valve member in the suction position.
  • the valve holder defines abutment means for the valve member in the contact suction position simultaneous with an outer end edge of the cylindrical end portion and the transition surface, so as to keep the valve member in the axis in position suction.
  • the valve assembly is integrated in a pump body 1 at its bottom.
  • the pump body has only been shown partially in the figures.
  • the pump body at the valve assembly intake includes an upper cylindrical body and a lower sleeve 11 in which a dip tube can be force fitted.
  • the pump body has a channel 15.
  • the intake channel 15 is extended upwards by a part frustoconical 16 which forms a valve seat.
  • the valve seat 16 forms a recess frustoconical in the bottom of the cylindrical body 12.
  • the cylindrical body 12 has a smaller diameter lower part connected to the upper part of the cylindrical body 12 by a frustoconical chamfer 13. This narrowing of the inner section of the cylindrical body 12 serves for the fitting to force of a valve holder generally designated by 3.
  • the bottom of the body cylindrical 12 is also provided with an annular groove 14 which extends concentrically with the valve seat 16. This groove 14 serves to minimize the material shrinkage phenomenon after cooling, because the pump body is conventionally made of plastic material.
  • the pump body which has just been described is a conventional pump body which can be used in any dispensing device such as a pump.
  • the valve seat 16 is particularly well suited for receiving a valve member in the form of a ball.
  • the ball in the closed position is applied from tightly on the frustoconical valve seat 16.
  • the increase in the thickness of the wall of the cylindrical part 12 which causes a narrowing of its internal diameter is conventionally adapted to receive a valve holder which defines a valve chamber in which the valve member is trapped.
  • another pump body can be used with the present invention without thereby get out of its frame.
  • the valve seat is part integral with the pump body, but it can also be envisaged to form a seat valve in an attached part in the pump body.
  • the valve holder 3 used in the embodiment described is a valve holder classic adapted to receive a ball.
  • the valve holder comprises a crown 31 of which the outer periphery is in close engagement with the inner wall of the pump body in its lower diameter portion.
  • the crown 31 is extended upwards by a tapered transient part 32 which ends in a ring 33.
  • the ring 33 has a central passage or hole 34 which communicates the valve chamber 26 with the distribution chamber of the device.
  • the crown 31 and the frusto-conical part 32 are provided with several lamellae 35 which extend from the bottom of the cylindrical body 12 to the central hole 34. In the embodiment shown, there are 4 of these slats 34. As will be seen below, these strips are used for the passage of the fluid when the valve member is in its position suction.
  • the valve member designated as a whole by 2 is not a ball. but is in the form of an elongated member terminated at its end lower by a frustoconical corolla 21.
  • the corolla 21 is fixed at the end bottom of a rod having two different sections 23 and 24 connected by a frustoconical transition surface 25.
  • section 24 is engaged in the central hole 34 of the valve holder 3.
  • the organ valve 2 is movable between a low closing position (fig. 2) and a position high suction (fig. 3). At rest, the valve member is in the state shown in the figure 1.
  • the outer surface of the frustoconical corolla 21 defines a contact surface 210 adapted to come into tight contact with the valve seat 13.
  • a characteristic particularly advantageous of the invention lies in the fact that the solid angle that defines the outer wall of the frustoconical corolla 21 is greater than that which defines the frustoconical valve seat 16.
  • the area of contact of the outer surface of the corolla 21 with the valve seat 16 is defined by a circle which is located in the upper end part of the valve seat. It exists thus a tip-shaped gap from the circular contact area down the valve seat. This difference is very small, because the difference in angle between the corolla and the seat is between 1 and 4 degrees.
  • liquid can accumulate by capillarity in this tapered, point-like space.
  • the accumulated liquid is used for sealing of the distribution chamber in the rest position. Improved sealing is thus achieved through the use of a valve member according to the invention.
  • the accumulation of liquid by capillary action occurs only on a very short length. With the present invention, this length extends from the annular contact zone to the bottom of the corolla. The surface tension generated by this accumulation of liquid improves contact with the valve member on its seat.
  • the valve member is made of a non-rigid material such than polyethylene, polypropylene or thermoplastic elastomer.
  • the organ valve is therefore endowed with a certain resilience. Because of this resilience, the corolla 21 may be subjected to compressive deformation stresses and / or elongation. In the rest position (fig. 1), the valve member is not subjected to any constraint. However, as soon as the pressure increases in the distribution chamber of the device, because the latter communicates with the valve chamber via the passage 34, the valve member 2 is subjected to the pressure prevailing in the body of pump. This pressure has the effect of strongly applying the corolla 21 to the seat of valve 16.
  • the valve member undergoes a slight deformation which has the effect of increasing the contact area of the corolla with the valve seat. As shown in Figure 2, this contact area is no longer defined by a circle but by a frustoconical surface. The contact surface is thus greatly increased. This is made possible, because the corolla forms with the stem a kind of mushroom or overturned umbrella. The pressure in the distribution chamber exerts a force on the inner wall of the corolla which pushes the corolla towards the stem and generates its deformation. Because the angle between the corolla and the valve seat is very small, the necessary deformation is very small. Due to the shape and the elasticity of the corolla, the initial annular contact zone has become a zone tapered contact.
  • the constraint exerted by the corolla in the area of initial circular contact is greatly increased. Resilience and pressure further increase the quality of contact with the valve seat. As long as the device distribution chamber remains under pressure, the valve member remains in the closed position shown in Figure 2. As soon as the pressure drops in the distribution chamber, contact breaks between the corolla and the valve seat. The next step is to fill the distribution chamber by suction of product through the intake channel 1. This has the effect of causing the flap up in its suction position.
  • the corolla 21 of the valve member is extends at its free end by a circular part 22.
  • This circular part 22 fulfills a double function. First, it can be used with its upper surface as a sliding pad at the outlet of the distribution bowl to obtain an orientation of the valve member. Then, the cylindrical part defines with its peripheral edge exterior in combination with the transition surface 25 a fictitious truncated cone which has a solid angle identical to that of the lamellae 35 in the transient part frustoconical 32 of the valve holder 3. Thus, in the suction position, the valve member has a double annular contact with the lamellae 35.
  • valve member in the axis in abutment in its position suction.
  • valve member is free to move in its chamber valve, it is forced to position itself perfectly in the axis as well in position closing on its valve seat 16 only in suction position by double contact with the slats 35.
  • valve member according to the invention is made of a material plastic and not steel, its inertia is lower and therefore its response to fluid passage is faster. It should also be noted that the particular shape of the corolla mushroom or inverted umbrella promotes its entrainment by the fluid closed position. Indeed, the pressurized fluid can rush into the concave volume defined between the corolla and the stem portion 23. At the start of placing under distribution chamber pressure, a small amount of fluid flows back towards the tank. This small amount of fluid drives the valve member on its seat. Thanks to the invention, this small amount of fluid is further reduced due to the speed with which the valve member moves to its closed position. Not only is the seal improved due to the frustoconical contact area, but still the sealing is obtained more quickly. In addition, the raw material used to make the valve member, in this case plastic, is much less expensive than the steel used to make balls.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Check Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Massaging Devices (AREA)

Claims (10)

  1. Einlaßventileinheit, die in eine Abgabevorrichtung für ein in einem Behälter enthaltenes, fluidförmiges Produkt integriert ist, und die dazu dient, eine Pumpenkammer des Behälters zumindest während einer Phase der Abgabe des Produktes zu isolieren, die einer Druckerhöhung in der Pumpenkammer entspricht, wobei die Ventileinheit ein Ventilorgan (2) umfaßt, das eine Berührungszone besitzt, die mit einem Ventilsitz (16), der eine im wesentlichen stumpfkegelige Form besitzt, zumindest während der erwähnten Phase der Abgabe in dichten Kontakt kommt, wobei die Berührungszone des Ventilorgans (2) einen Teil einer im wesentlichen stumpfkegeligen Oberfläche (210) bildet, dadurch gekennzeichnet, daß der Scheitelwinkel der stumpfkegeligen Oberfläche (210) derart größer ist als der, der vom Ventilsitz (16) definiert wird, daß die Berührungszone zumindest ungefähr von einem Kreis gebildet wird, wenn sich das Ventilorgan in seiner Ruhelage befindet, und daß die stumpfkegelige Oberfläche (210) von einer im wesentlichen flexiblen Wand derart gebildet wird, daß sich die zunächst kreisförmige Berührungszone durch elastische Verformung während der Phase der Abgabe zu einem Kegelstumpf erweitert.
  2. Einlaßventileinheit nach Anspruch 1, bei der das Ventilorgan (2) eine Krone (21) umfaßt, die sich in stumpfkegeliger Weise derart nach außen erstreckt, daß eine stumpfkegelige Außenwand die besagte stumpfkegelige Oberfläche (210) definiert.
  3. Einlaßventileinheit nach Anspruch 2, bei der das Ventilorgan (2) eine Stange (23, 24) umfaßt, die ein unteres Ende besitzt, wobei die Krone (21) an diesem unteren Ende ausgebildet ist.
  4. Einlaßventileinheit nach Anspruch 1, 2 oder 3, bei der die Verschiebung des Ventilorgans durch einen Ventilträger (3) zwischen einer Schließposition und einer Ansaugposition begrenzt wird.
  5. Einlaßventileinheit nach den Ansprüchen 3 und 4, bei der das obere Ende der Stange (23) mit einem Durchgang (34) in Eingriff steht, der vom Ventilträger (3) gebildet wird.
  6. Einlaßventileinheit nach Anspruch 2, bei der die Krone einen zylindnschen Endteil (22) in Verlängerung der stumpfkegeligen Wand (210) umfaßt.
  7. Einlaßventileinheit nach Anspruch 3, bei der die Stange zwei zylindrische Abschnitte (23, 24) mit unterschiedlichen Durchmessem umfaßt, die durch eine Übergangsoberfläche (25) miteinander verbunden sind.
  8. Einlaßventileinheit nach Ansprüchen 4, 6 und 7, bei der der Ventilträger (3) Anschlagmittel (35) für das Ventilorgan (3) in der Ansaugposition durch gleichzeitige Berührung mit einem Endanschlag außerhalb des zylindnschen Endteils (22) und der Übergangsoberfläche (25) derart definiert, daß das Ventilorgan in der Ansaugstellung axial gerichtet gehalten wird.
  9. Einlaßventileinheit nach einem der vorhergehenden Ansprüche, bei der der verwendete Ventilträger ein herkömmlicher Ventilträger ist, der üblicherweise für die Aufnahme einer Ventilkugel ausgebildet ist.
  10. Einlaßventileinheit nach einem der vorhergehenden Ansprüche, bei der das Ventilorgan aus Kunststoffmaterial hergestellt ist.
EP19960911023 1995-04-07 1996-04-03 Konstruktion eines einlassventils Expired - Lifetime EP0821775B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9504188 1995-04-07
FR9504188A FR2732742B1 (fr) 1995-04-07 1995-04-07 Ensemble de clapet d'admission.
PCT/FR1996/000501 WO1996031718A1 (fr) 1995-04-07 1996-04-03 Ensemble de clapet d'admission

Publications (2)

Publication Number Publication Date
EP0821775A1 EP0821775A1 (de) 1998-02-04
EP0821775B1 true EP0821775B1 (de) 1999-07-07

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Application Number Title Priority Date Filing Date
EP19960911023 Expired - Lifetime EP0821775B1 (de) 1995-04-07 1996-04-03 Konstruktion eines einlassventils

Country Status (6)

Country Link
US (1) US5983927A (de)
EP (1) EP0821775B1 (de)
DE (1) DE69603178T2 (de)
ES (1) ES2135892T3 (de)
FR (1) FR2732742B1 (de)
WO (1) WO1996031718A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6286732B1 (en) * 1998-08-28 2001-09-11 Warren S. Daansen Dispenser valve with increased flow capacity
US6346219B1 (en) * 1998-11-20 2002-02-12 Uop Llc FCC feed injector with closure plug
US6405751B1 (en) 2001-07-23 2002-06-18 Chi-Chen Hsiao Gas safety valve
DE20118810U1 (de) * 2001-11-17 2003-04-03 Dieter Wildfang GmbH, 79379 Müllheim Rückflußverhinderer
DE10237364B4 (de) * 2002-08-12 2004-09-02 Norbert Martin Rückschlagventil
AU2003263077B2 (en) * 2002-09-06 2010-04-29 3M Innovative Properties Company Metering valve for a metered dose inhaler providing consistent delivery
GB0315791D0 (en) 2003-07-07 2003-08-13 3M Innovative Properties Co Two component molded valve stems
ATE510127T1 (de) * 2007-03-06 2011-06-15 Ixetic Bad Homburg Gmbh Pumpe mit einem magnetisch angesteuerten schaltventil zur saugdrosselung
CA2863641A1 (en) 2012-02-03 2013-08-08 S.P.M. Flow Control, Inc. Pump assembly including fluid cylinder and tapered valve seats
USD748228S1 (en) 2013-01-31 2016-01-26 S.P.M. Flow Control, Inc. Valve seat
EP2687723A1 (de) * 2012-07-17 2014-01-22 J.P. Sauer & Sohn Maschinenbau GmbH Wassergekühlter Kolbenkompressor
WO2015081243A1 (en) 2013-11-26 2015-06-04 S.P.M. Flow Control, Inc. Valve seats for use in fracturing pumps
CN105332786A (zh) * 2015-12-11 2016-02-17 重庆小康工业集团股份有限公司 发动机用节温器座
GB2560342A (en) * 2017-03-08 2018-09-12 Product4 Ltd Valve
FR3071896B1 (fr) * 2017-10-02 2020-02-21 Delphi Technologies Ip Limited Valve avec clapet et siege de clapet aux dimensions stables
US11359619B2 (en) * 2017-11-14 2022-06-14 Encite Llc Valve having a first and second obstruction confining the valve from leaving a confining region

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1072673A (en) * 1912-03-02 1913-09-09 Harry Hogan Check-valve.
US2771902A (en) * 1951-12-12 1956-11-27 Winchester Dollie Insert pump cage having reciprocable valve
US3054422A (en) * 1958-09-26 1962-09-18 Pellegrino E Napolitano Fluid seal for pressure responsive valve
US3540472A (en) * 1967-07-13 1970-11-17 Francis E Brady Jr Check valve
FR1554857A (de) * 1967-12-11 1969-01-24
US3677286A (en) * 1970-11-25 1972-07-18 Bloomfield Valve Corp Valve
US3897042A (en) * 1971-12-20 1975-07-29 Henry J Kachergis Ball cock valve
US4532958A (en) * 1982-09-30 1985-08-06 Hudson Engineering Company Check valve having replaceable valve assembly
US4518329A (en) * 1984-03-30 1985-05-21 Weaver Joe T Wear resistant pump valve
DE3530486A1 (de) * 1985-08-27 1987-03-05 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer fliessfaehige medien
US4846216A (en) * 1988-07-05 1989-07-11 Robert E. Raymond Fluid power valve device
IT1235504B (it) * 1989-08-04 1992-09-05 Istituto Di Fotografia Biomedi Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano.
US5039284A (en) * 1990-05-08 1991-08-13 Walbro Corporation Fuel pump with a vapor vent valve
US5277559A (en) * 1992-11-25 1994-01-11 Emson Research, Inc. Sliding seal pump
US5307962A (en) * 1993-05-03 1994-05-03 Lin Hui Yu Container mounted pump with improved check valve structure
AU7091794A (en) * 1993-06-24 1995-01-24 Procter & Gamble Company, The Pump device with collapsible pump chamber having integral shipping seal

Also Published As

Publication number Publication date
US5983927A (en) 1999-11-16
FR2732742A1 (fr) 1996-10-11
FR2732742B1 (fr) 1997-05-30
DE69603178D1 (de) 1999-08-12
EP0821775A1 (de) 1998-02-04
ES2135892T3 (es) 1999-11-01
WO1996031718A1 (fr) 1996-10-10
DE69603178T2 (de) 2000-03-09

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