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1. WO1994027729 - SPRAYING NOZZLE FOR REGULATING A RATE OF FLOW PER UNIT OF TIME

Publication Number WO/1994/027729
Publication Date 08.12.1994
International Application No. PCT/IB1994/000118
International Filing Date 20.05.1994
Chapter 2 Demand Filed 09.12.1994
IPC
B05B 1/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
1Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
34designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
B05B 7/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
7Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
02Spray pistols; Apparatus for discharge
04with arrangements for mixing liquids or other fluent materials before discharge
CPC
B05B 1/3405
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
1Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
34designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
3405to produce swirl
B05B 1/3436
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
1Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
34designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
3405to produce swirl
341before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
3421with channels emerging substantially tangentially in the swirl chamber
3431the channels being formed at the interface of cooperating elements, e.g. by means of grooves
3436the interface being a plane perpendicular to the outlet axis
B05B 7/0425
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
7Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
02Spray pistols; Apparatus for discharge
04with arrangements for mixing liquids or other fluent materials before discharge
0416with arrangements for mixing one gas and one liquid
0425without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
Applicants
  • WERDING, Winfried [DE]/[CH]
Inventors
  • WERDING, Winfried
Agents
  • MICHELI ET CIE
Priority Data
1561/93-725.05.1993CH
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) SPRITZDÜSE FÜR DIE REGULIERUNG DER DURCHFLUSSMENGE PRO ZEITEINHEIT
(EN) SPRAYING NOZZLE FOR REGULATING A RATE OF FLOW PER UNIT OF TIME
(FR) BUSE DE PULVERISATION SERVANT A LA REGULATION D'UN DEBIT PAR UNITE DE TEMPS
Abstract
(DE)
Eine Düsenhülse (1), Zuführkanäle (2), Speisekanäle (3, 5, 22, 24), Rundlaufkanäle (4, 6), Tangentialkanäle (8) und einen Ringkanal (7) aufweisend, enthält einen Kern (13), der die verschiedenen Kanäle so hermetisch abdeckt, dass sie zu Leitungen werden, die eine in diese einfliessende Flüssigkeit so in Stromrichtung leiten, dass sie in den grossen Rundlaufkanal (4) in einer vorbestimmten Drehrichtung gestossen wird und von dort in einer umgekehrt zur vorbestimmten Drehrichtung verlaufenden Drehrichtung in einen kleinen Rundlaufkanal (6) fliesst, von wo aus die Flüssigkeit über Speisekanäle (5) wieder in der vorbestimmten Drehrichtung in einen Ringkanal (7) gelangt, von wo sie zerstäubt die Bohrung (9) der Düsenhülse (1) verlässt, das Ganze derart, dass die Veränderungen der Drehrichtung Turbulenzen hervorrufen, die gegen die unter Druck einfliessende Flüssigkeit eine Bremskraft darstellen, deren Intensität direkt proportional zum Flüssigkeitsdruck ist, wodurch die Durchflussmenge pro Zeiteinheit, zumindest annährend, konstant gehalten wird.
(EN)
A nozzle sleeve (1) contains supply channels (2), feeding channels (3, 5, 22, 24), concentric channels (4, 6), tangential channels (8) and a ring-shaped channel (7), as well as a core (13) which covers the various channels, so hermetically that they form ducts into which a liquid flows in and is pushed in a predetermined direction of rotation into the large concentric channel (4), then flows in the opposite direction of rotation into the small concentric channel (6) and finally flows once again in the predetermined direction of rotation through the feeding channels (5) and reaches a ring-shaped channel (7) from where it is sprayed out through the bore (9) of the nozzle sleeve (1). The changes in the direction or rotation cause turbulences which represent a braking force for the liquid flowing under pressure. The intensity of this braking force is directly proportional to the liquid pressure, so that the rate of flow per unit of time is held at least approximately constant.
(FR)
Une douille (1) de buse comprend des canaux d'amenée (2), des canaux d'alimentation (3, 5, 22, 24), des canaux concentriques (4, 6), des canaux tangentiels (8) et un canal annulaire (7), ainsi qu'un noyau (13) qui recouvre les différents canaux si hermétiquement que ceux-ci forment des conduits dans lesquels un liquide s'écoule dans une direction d'écoulement telle qu'il est poussé dans le grand canal concentrique (4) dans une direction prédéterminée de rotation, puis s'écoule dans un petit canal concentrique (6) dans la direction opposée, et finalement s'écoule dans des canaux d'alimentation (5), à nouveau dans la direction de rotation prédéterminée, jusqu'à ce qu'il parvienne à un canal annulaire (7) duquel il sort pulvérisé par le trou (9) de la douille (1) de la buse. Les changements de la direction de rotation provoquent des turbulences qui représentent une force de freinage pour le liquide s'écoulant sous pression, l'intensité de la force de freinage étant directement proportionnelle à la pression du liquide, de sorte que le débit par unité de temps est maintenu au moins approximativement constant.
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