EP0445358A2 - Soupapes pour l'atomisation de liquides - Google Patents

Soupapes pour l'atomisation de liquides Download PDF

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Publication number
EP0445358A2
EP0445358A2 EP90119528A EP90119528A EP0445358A2 EP 0445358 A2 EP0445358 A2 EP 0445358A2 EP 90119528 A EP90119528 A EP 90119528A EP 90119528 A EP90119528 A EP 90119528A EP 0445358 A2 EP0445358 A2 EP 0445358A2
Authority
EP
European Patent Office
Prior art keywords
chamber
gas
liquid
valving member
premixing
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
EP90119528A
Other languages
German (de)
English (en)
Other versions
EP0445358A3 (en
EP0445358B1 (fr
Inventor
Adalberto Geier
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.)
Coster Technologie Speciali SpA
Original Assignee
Coster Technologie Speciali SpA
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 Coster Technologie Speciali SpA filed Critical Coster Technologie Speciali SpA
Publication of EP0445358A2 publication Critical patent/EP0445358A2/fr
Publication of EP0445358A3 publication Critical patent/EP0445358A3/en
Application granted granted Critical
Publication of EP0445358B1 publication Critical patent/EP0445358B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/66—Contents and propellant separated first separated, but finally mixed, e.g. in a dispensing head

Definitions

  • This invention relates to improvements in valves for the atomized delivery of liquids contained under pressurized gas, such as nitrogen, in cans or other containers.
  • valves of the invention are of the type in which liquid mixes with gas in a chamber located upstream of a valving member which controls the delivery of the atomized product and moves within said chamber.
  • a valve of this type is described for example in Italian patent 1,096,119 or its corresponding U.S.A. patent 4,417,674.
  • this improvement is obtained by providing for premixing between the liquid and gas to take place in a premixing chamber positioned prior to that in which the the valving member moves and separated from it by a nozzle or narrow hole having a cross-section substantially less than that of said chambers.
  • separate nozzles or narrow passages for the gas and liquid open into the premixing chamber.
  • the valve for the delivery of liquids in atomized form comprises a hollow body 1, 1A clinched to a base or cap 2, 2A fixed in known manner to a can or other container 3 containing a pressurized gas such as nitrogen and a liquid such as perfume.
  • the hollow body 1 In proximity to its upper end the hollow body 1 comprises a flange 4A in which an annular channel 5, 5A is provided, bounded on its inside by a wall 6, 6A having a height less than the outer wall 7, 7A.
  • the valving member 11, 11A is mobile axially against a spring 13, 13A resting lowerly on an annular base recess 14, 14A which delimits the delivery chamber 12, 12A and surrounds a nozzle or narrow hole 20, 20A.
  • the seal for the delivery valve is provided by an upper annular edge 15, 15A of the part 16, 16A urged against the seal ring 9, 9A by the spring 13, 13A and by the ring 9, 9A itself at the level of a series of radial apertures 17, 17A in said stem, which it intercepts in a sealed manner.
  • the part 16, 16A of the valving member 11, 11A comprises one or more preferably helical grooves 18, 18A in a number equal to the number of radial apertures 17, 17A.
  • the narrow hole 20, 20A connects the delivery chamber 12, 12A to a premixing chamber 21, 21A.
  • the premixing chamber 21 has the shape shown in the cross-sectional view of Figure 1A, defined by a flat wall 30, a wall 31 in the shape of a circular arc extending through more than 180°, and a groove 32 which extends parallel to the axis of the body 1 to open (via a slot 33) into the gaseous environment of the container 3 when this latter is in its substantially erect position for use.
  • the premixing chamber 21 is bounded lowerly by the upper end of a tubular insert 34 rigid with the body 1 and provided in said end with a nozzle or narrow hole 35 coaxial with 20 and leading to the premixing chamber.
  • the tubular insert defines with its outer wall and the groove 32 a channel through which the gas can reach the premixing chamber 21.
  • a usual dip tube 37 is mounted on the tubular insert 34, which abuts against a step 36 on the body 1.
  • the cross-sectional areas of the nozzles 20 and 35 and of the groove 32 are substantially less than those of the chamber 12 and 21.
  • the groove 32 can be obtained by frontal forming, which enables passage cross-sections (in the part in which the groove is bounded by the insert 34) of 0.2 mm2 to be obtained, which would otherwise be obtainable only by laser, ie by additional operational means and processes. Grooves of different cross-section can be obtained merely by changing the forming pin. It is important to note that a relationship exists between principally the cross-sectional areas of the nozzles 20, 35 and the channel formed by the groove 35, such that by varying these a very low gas consumption through the groove 35 can be obtained.
  • the passage cross-sections of the nozzles and groove are chosen so that this latter is the smaller and the nozzle 20 has a greater cross-section than the nozzle 35.
  • the cross-section of the nozzle 35 could be 0.3 mm2, that of the nozzle 20 could be 0.35 mm2 and that of the groove 32 could be 0.2 mm2.
  • a Venturi effect is created by the liquid under pressure, with the result that a small quantity of gas is drawn through the groove 32 and mixed with the liquid fraction in the premixing chamber 21, the gas and liquid then emerging into the further chamber 12 in which intimate gaseous state mixing takes place by the effect of expansion.
  • pressure energy is transformed into kinetic energy with the result that the mixture gains velocity in passing to the delivery knob 50.
  • the embodiment shown in Figure 2 also comprises a premixing chamber 21A to which however the gas flows via a narrow radial passage 60, the cross-section of which is less than that of the nozzle 20A.
  • the premixing chamber has a lower larger-diameter portion with the frusto-conical connecting part 61 acting as a total or partial sealing seat for a ball 62 which is retained in the chamber 12 by an inserted cup 63 provided with axial grooves 64 for liquid passage.
  • the cup is retained in situ by the dip tube 65 and an inner shoulder 66 on the body 1A.
  • the purpose of the ball 62 is to prevent or reduce gas consumption when the container 3 is used inverted instead of upright, which is its correct position.
  • the depressed knob 50A On pressing the delivery knob 50A with the container upright, the depressed knob 50A allows the liquid to pass from the dip tube 65 through the axial grooves 64 and into the premixing chamber 21A to reach its upper narrow region in which mixing takes place with the gas which enters through the narrow passage 60.
  • the gas/liquid mixture is throttled by the nozzle 20A and passes into the chamber 12A in which further intimate mixing takes place.
  • the invention also evidently covers an embodiment in which the delivery valve of Figure 1 is provided with a ball with the same purpose of reducing or excluding gas consumption if the container is incorrectly used inverted. For this purpose it is sufficient to use the ball arrangement shown in Figure 2.
EP90119528A 1990-03-06 1990-10-11 Soupapes pour l'atomisation de liquides Expired - Lifetime EP0445358B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT01957990A IT1243765B (it) 1990-03-06 1990-03-06 Perfezionamenti alle valvole per l'erogazione nebulizzata di liquidi
IT1957990 1990-03-06

Publications (3)

Publication Number Publication Date
EP0445358A2 true EP0445358A2 (fr) 1991-09-11
EP0445358A3 EP0445358A3 (en) 1992-10-14
EP0445358B1 EP0445358B1 (fr) 1994-09-21

Family

ID=11159203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119528A Expired - Lifetime EP0445358B1 (fr) 1990-03-06 1990-10-11 Soupapes pour l'atomisation de liquides

Country Status (5)

Country Link
EP (1) EP0445358B1 (fr)
JP (1) JPH03256879A (fr)
AR (1) AR246447A1 (fr)
DE (1) DE69012790T2 (fr)
IT (1) IT1243765B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000367A1 (fr) * 1992-06-22 1994-01-06 Joseph Ferraye Systeme universel de propulsion progressive et ou d'atomisation active pour aerosols
WO2001012525A1 (fr) * 1999-08-13 2001-02-22 Precision Valve Corporation Cupule de montage a joint d'etancheite amelioree pour aerosol
US6311876B1 (en) * 2000-03-13 2001-11-06 Hung-Yang Liu Grease atomizing nozzle
US7237697B2 (en) 2001-12-14 2007-07-03 Boehringer Ingelheim Microparts Gmbh Apparatus for dispensing an atomized liquid product
US8292121B2 (en) 2007-07-16 2012-10-23 Summit Packaging Systems, Inc. Fitment and valve apparatus for bag-on-valve device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128653C2 (de) * 1991-08-29 1994-08-18 Praezisions Ventil Gmbh Ventileinheit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417674A (en) * 1978-04-13 1983-11-29 Coster Tecnologie Speciali S.P.A. Valve for the admixture of fluids and delivery of the resulting mixture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417674A (en) * 1978-04-13 1983-11-29 Coster Tecnologie Speciali S.P.A. Valve for the admixture of fluids and delivery of the resulting mixture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000367A1 (fr) * 1992-06-22 1994-01-06 Joseph Ferraye Systeme universel de propulsion progressive et ou d'atomisation active pour aerosols
WO2001012525A1 (fr) * 1999-08-13 2001-02-22 Precision Valve Corporation Cupule de montage a joint d'etancheite amelioree pour aerosol
CN1139524C (zh) * 1999-08-13 2004-02-25 精密阀门公司 喷雾容器阀安装装置及其形成方法和形成折线的装置
AU772221B2 (en) * 1999-08-13 2004-04-22 Robert H. Abplanalp Improved gasketed aerosol mounting cup
US6311876B1 (en) * 2000-03-13 2001-11-06 Hung-Yang Liu Grease atomizing nozzle
US7237697B2 (en) 2001-12-14 2007-07-03 Boehringer Ingelheim Microparts Gmbh Apparatus for dispensing an atomized liquid product
US8292121B2 (en) 2007-07-16 2012-10-23 Summit Packaging Systems, Inc. Fitment and valve apparatus for bag-on-valve device

Also Published As

Publication number Publication date
IT9019579A1 (it) 1991-09-06
DE69012790T2 (de) 1995-03-09
DE69012790D1 (de) 1994-10-27
EP0445358A3 (en) 1992-10-14
EP0445358B1 (fr) 1994-09-21
IT9019579A0 (it) 1990-03-06
JPH03256879A (ja) 1991-11-15
IT1243765B (it) 1994-06-28
AR246447A1 (es) 1994-08-31

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