EP0882522B1 - Lance et appareil de production d'un jet de CO2 liquide, et son application à une installation de nettoyage de surfaces - Google Patents
Lance et appareil de production d'un jet de CO2 liquide, et son application à une installation de nettoyage de surfaces Download PDFInfo
- Publication number
- EP0882522B1 EP0882522B1 EP19980401134 EP98401134A EP0882522B1 EP 0882522 B1 EP0882522 B1 EP 0882522B1 EP 19980401134 EP19980401134 EP 19980401134 EP 98401134 A EP98401134 A EP 98401134A EP 0882522 B1 EP0882522 B1 EP 0882522B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- jet
- nozzle
- tube
- produced
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/322—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for electrical components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
Definitions
- the invention relates to a lance for producing a jet of liquid CO 2 , comprising means for connection to a source of liquid CO 2 under pressure, means for expanding the liquid CO 2 under pressure and means for ejecting the CO 2 liquid expanded in a jet.
- CO 2 is a substitute solvent, which, applied in the form of a jet of liquid, proves to be competitive and effective for cleaning or surface depollution operations.
- the invention aims to remedy the problems mentioned above and, in particular, to provide a lance for producing a jet of liquid which can be used in cleaning applications and adapted to the physical characteristics of CO 2 .
- the subject of the invention is a lance for producing a jet of liquid CO 2 , comprising means for expansion of the liquid CO 2 under pressure connected on the one hand, to means for connection to a source of CO 2 liquid under pressure, and on the other hand to means for ejecting a relaxed liquid CO 2 in a jet, characterized in that the means for expanding the liquid CO 2 comprise means for progressive expansion comprising a capillary tube.
- the invention also relates to an apparatus for producing a liquid CO 2 jet, characterized in that it comprises on the one hand at least one lance as defined above, associated with at least one regulating solenoid valve the flow rate of the liquid CO 2 jet produced by the lance, and a unit for controlling the opening of the or each solenoid valve.
- the invention also relates to a surface cleaning installation by liquid CO 2 jet, characterized in that it comprises an apparatus as defined above and means for relative displacement of a surface to be cleaned with respect to spear.
- the invention may also comprise means for removing the gaseous CO 2 produced during the ejection of the liquid CO 2 .
- the invention ultimately relates to ejection means for a lance as defined above.
- the ejection means can comprise a nozzle for ejecting expanded liquid CO 2 , a body for connecting to the means of progressive expansion of a lance, a ring for mounting on the lance, a tube surrounding the ejection nozzle at a distance. and provided with an air inlet opening, and a pipe nozzle surrounding the ejection nozzle at a distance, the pipe nozzle being operable and movable between a retracted position, in which it closes the inlet opening of air from the tube, and an active position in which it at least partially frees the air inlet opening of the tube and in which a front part of the pipe nozzle is adapted to surround part of the CO jet 2 liquid produced.
- FIG. 1 illustrates a lance for producing a jet of liquid CO 2 comprising a hollow body 1 of generally cylindrical shape in which are housed means 3 for progressive expansion of liquid CO 2 under pressure. These means 3 are connected on the one hand, upstream, to means 5 for connection to a source 4 of pressurized liquid CO 2 , located at an upstream end 7 of the body 1, and on the other hand, downstream , to means 9 for ejecting a relaxed liquid CO 2 jet, situated at the downstream end 11 of the body 1.
- Means 13 forming a valve for regulating the flow rate of the jet of liquid CO 2 produced are arranged in the body 1 between the means 3 for progressive expansion of the liquid CO 2 and the means 9 for ejecting the liquid CO 2 .
- the body 1 is crossed by a bore longitudinal 15 threaded at the end 7.
- connection means 5 consist of a conventional male connector 17, screwed into the end 7 of the body 1, making it possible to connect the lance, by means of a hose 18, to the source 4 of liquid CO 2 under pressure.
- This fitting 17 is crossed by a bore longitudinal stepped, coaxial with bore 15, comprising, successively from upstream to downstream, an entry part 19 of large diameter, a converging part 21, a part 23 of small section, then part 25 of section slightly larger than the section of the part 23 and opening into the bore 15.
- a shoulder transverse 27 connects parts 23 and 25.
- Means 3 of progressive relaxation comprise a capillary tube 29, wound in a helix, housed in body 1, the propeller formed being substantially coaxial with the bore 15.
- the tube 29 is of substantially constant section.
- the two ends 31 and 33 of the tube 29 are straight and coaxial to the bore 15.
- the end upstream 31 of tube 29 is housed in part 25 of the bore of the fitting 17, its edge bearing on the shoulder 27.
- a solder 35 is produced between the fitting 17 and the emerging part of the end 31 of the tube 29.
- the inner section of the tube 29 and the section of part 23 of the bore of fitting 17 are substantially equal.
- the means 13 forming a valve for adjusting the flow rate of the jet of liquid CO 2 produced comprise a member 37 of generally cylindrical shape, slidably mounted in the bore 15 of the body 1, and connected by its upstream end 39 to the downstream end 33 of the tube 29.
- the member 37 is crossed by a bore 41 longitudinal stepped coaxial with bore 15.
- This bore 41 includes, from the end 39, parts successive 43, 45, 47 and 49 of decreasing sections.
- Part 43 is tapped and receives by screwing a fitting 51 of generally cylindrical stepped shape, crossed by a stepped longitudinal bore 53.
- the bore 53 successively presents a first part 55 for receiving the downstream end 33 of the tube 29, and a second part 57 of section substantially equal to the internal section of the tube 29 and opening out in part 47 of bore 41.
- An O-ring 59 arranged in a groove circular provided at the downstream end (right on the Figure 1) of the connector 51 provides sealing between the downstream part of fitting 51 and part 45 of the bore 41 in which it is received.
- a solder 60 is produced, in the same way as solder 35, between the downstream end 33 of the tube and the connector 51.
- the downstream end edge of the tube 29 is supported on a shoulder joining parts 55 and 57 of the bore 53.
- a ball 61 for closing the passage between the parts 47 and 49 of the bore 41 is arranged with radial clearance in part 47 of bore 41. Its seat consists of a converging surface 63 connecting parts 47 and 49 of bore 41, and the ball 61 is held against its seat 63 by a helical spring 65 bearing on the fitting 61.
- the valve means 13 comprise also a part 67 for operating the ball, generally cylindrical stepped shape, pierced with a bore 69 longitudinal coaxial with bore 15.
- This part 67 is terminated upstream by a tapered portion 71 of which the end is pierced with openings or notches 72.
- This part 71 is received so sliding in part 49 of bore 41.
- a seal O-ring 73, surrounding the tapered part 71, is housed in an inner circular groove in part 49 of the bore 41, thus ensuring the seal between the parts 49 and 71.
- the downstream end 74 of part 67 support flange shape of a helical spring 75 threaded on the part 67 and also taking support on the organ 37.
- the member 37 has, on its surface outer, an annular groove 77, facing which a lever 79 is rotatably mounted on the body 1 of the lance thanks to a spindle 80 extending between two longitudinal flanges 81 projecting from the body 1.
- a first arm 83 of the lever 79 forms relaxation and the other arm 85 trigger-shaped, the free end of the arm 85 advancing through an opening 84 formed in body 1, in throat 77.
- the means 9 for ejecting the expanded liquid CO 2 comprise a connecting body 87, of generally cylindrical stepped shape, traversed by a stepped bore 89 coaxial with the bore 15, and receiving an ejection nozzle 91 in the form of a capillary tube coaxial with the bore 15. The upstream end of this tube abuts against an intermediate shoulder of the bore 89.
- a solder 92 is produced between the nozzle 91 and the body 87.
- Body 87 has three parts successive cylindrical sections 93, 95 and 97 decreasing while moving towards the front of the lance (on the right in figure 1), part 93 being received from sliding way in bore 15 and a seal O-ring 96 ensuring sealing between the walls in look at bore 15 and part 93.
- a ring 101 resting on a shoulder transverse joining parts 93 and 95 of body 87 is screwed onto the end 11 of the body 1, which is threaded.
- the piece 67 is held against the body 87 by spring 75, bores 69 and 89 of part 67 and of the body 87 communicating in leaktight manner and being substantially the same section.
- a vent 102 is drilled in the body 1 between the front end (on the right in Figure 1) of organ 37 and part 93 of body 87.
- a pipe nozzle 109 shaped general of revolution, convergent and coaxial to the nozzle 91, is slidably mounted on the front end of the tube 103.
- This nozzle 109 has a rear part 111 cylindrical surrounding the front end of the tube 103, and a cylindrical front part 113 surrounding at a short distance from the front end of the nozzle 91. Parts 111 and 113 are connected by a part convergent 114.
- a pin 115 secured to the front part of the tube 103 is received in a longitudinal opening oblong 116 of part 111 of nozzle 109.
- the pawn 115 limits the translation of the nozzle 109 on the tube 103 between two positions: on the one hand, a position retracted (Figure 1), in which the rear part of the nozzle 111 closes the orifices 107, and in which the front part 105 of the nozzle 91 protrudes by the front part 113 of the nozzle 109; And on the other hand, an active position for channeling a flow air (Figure 3), in which the nozzle 109 releases totally the orifices 107 and in which the part front 111 of nozzle 109 protrudes forward (right in Figure 1) relative to the front end 105 of nozzle 91.
- the source of liquid CO 2 under pressure is therefore placed in communication with the bore of the connector 17, the capillary tube 29, the part 57 of the bore 53 of fitting 51 and part 47 of bore 41.
- the latter grasps with one hand the body 1 forming a handle as well as the arm 83 of the lever forming the trigger and, by tightening the grip, brings the arm 83 together of the body 1 by pivoting the lever 79 counterclockwise in FIG. 1.
- the arm 85 then pushes the member 37 forward (on the right in FIG. 1) in the body 1 by compressing the spring 75
- the tapered part 71 of the part 67 slides in the part 49 of the bore 41 of the member 37 and pushes the ball 61, moving it away from its seat 63 (FIG. 2).
- the ball 61 under the action of this displacement, compresses the spring 65.
- the ball 61 having left its seat and the end of the part 71 being pierced with openings 72, the source of liquid CO 2 under pressure is put, by means of the bore 69 of the part 67, of the bore 89 of the body 87 and of the capillary tube 91, in communication with the ambient atmosphere.
- the liquid CO 2 then flows from the source to the ambient atmosphere. It undergoes progressive expansion in the capillary tube 29 which, by its dimensional characteristics (length and section) makes it possible to induce a significant pressure drop while slowing the flow of liquid CO 2 and therefore limiting the flow of liquid CO 2 relaxed.
- the flow of liquid CO 2 is indicated by arrows in bold lines in FIGS. 2 and 3.
- the expanded liquid CO 2 is then conveyed to the outlet of the capillary tube 91, where it expands to ambient pressure producing a fine jet and of limited flow rate, suitable for cleaning operations.
- the operator can gradually place the front part 113 of this nozzle around the jet of liquid CO 2 produced while the rear part 111 of the nozzle 109 gradually releases the orifices 107.
- the jet of liquid CO 2 entrains the air present between it and the internal wall of the front part 113 of the nozzle 109, thus creating an air suction in the nozzle 109 initiating an air flow, materialized by arrows in thin line in FIG. 3, in the tube 103, this flow being supplied by the orifices 107.
- This air flow is channeled by the tube 103 and the nozzle 109 and injected into the jet of liquid CO 2 , thus increasing the section and the temperature of the liquid CO 2 jet produced.
- the nozzle 109 therefore makes it possible to modify the opening of the jet of liquid CO 2 produced.
- the ball 61 therefore behaves like the shutter of a valve for stopping the flow of expanded liquid CO 2 , controlled by the lever 79.
- the helical configuration of the tube 29 allows on the one hand to place in a reduced volume a length sufficient tube to achieve progressive expansion desired, and on the other hand allows the tube 29 to adapt to the movement of the organ 37.
- the vent 102 allows, in the event of a leak in the body 1, the ejection of liquid CO 2 under pressure.
- the means 9 for ejecting the liquid CO 2 produced are removable by unscrewing the ring 101 and are interchangeable. This makes it possible to modify, for example, the dimensional characteristics of the nozzle 91 for ejecting liquid CO 2 and of the nozzle 109 for air ducting, and thus to modify the range of characteristics of the jets that can be produced by the lance for adapt it to the type of cleaning envisaged.
- the length of the nozzle 109 may be such that, in its active air ducting position (FIG. 3), its front part 113 advances sufficiently beyond the front end 105 of the nozzle 91 so that a jet of liquid CO 2 produced impacts the inner wall of this nozzle 109, which then forms a blister for producing carbon dioxide snow.
- the positioning of the means 13 forming a valve downstream of the means 3 for progressive expansion makes it possible to avoid delays in production of the jet of liquid CO 2 when the operator presses or releases the arm 83 forming expansion.
- valve means may be constituted by a solenoid valve 117 (FIG. 4), preferably arranged upstream of the expansion means 3 progressive.
- the lance described above is therefore perfectly suited to manual use, since an operator can, while holding and orienting the lance thanks to the body 1 forming a handle, control with the same hand the production of a jet of liquid CO 2 , and varying the characteristics of the jet of liquid CO 2 by moving the nozzle 109 using his other hand.
- the heating of liquid CO 2 by injecting an air flow can, in particular in the field of electronics, prove to be useful for limiting the condensation of ambient air.
- the lance for producing a liquid CO 2 jet according to the invention can be used manually in the open air or in glove boxes.
- valve forming means are preferably constituted by one or more solenoid valves 117, possibly common to several lances, for adjusting the flow rate of jets of liquid CO 2 produced, and connected to one or more individual or common control units. 119 of the opening of these solenoid valves 117.
- Such an apparatus could be incorporated into a surface cleaning installation comprising means 121 for moving a surface 123 to be cleaned with respect to the means for ejecting the different lances, and means 125 for discharging the gaseous CO 2 produced during ejection of the liquid CO 2 may also be provided.
- Such an installation could also incorporate means 127 for heating the surface to limit the drawbacks associated with the relatively low temperatures of the liquid CO 2 produced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Description
- les moyens de détente progressive comprennent un tube capillaire, notamment enroulé en hélice;
- les moyens d'éjection comprennent une buse d'éjection du CO2 liquide détendu munie de moyens de réglage de l'ouverture du jet de CO2 liquide produit;
- lesdits moyens de réglage comprennent des moyens d'injection d'un écoulement d'air dans le jet de CO2 liquide produit, et des moyens de réglage du débit de l'écoulement d'air injecté;
- lesdits moyens de réglage comprennent un organe de canalisation adapté pour entourer une partie amont du jet de CO2 liquide produit et ainsi créer une aspiration d'air entre le jet de CO2 liquide et l'organe de canalisation;
- lesdits moyens de réglage comprennent un tube entourant à distance la buse d'éjection et muni d'une ouverture d'entrée d'air, et une buse de canalisation entourant à distance la buse d'éjection, la buse de canalisation étant manoeuvrable et mobile entre une position rétractée, dans laquelle elle obture l'ouverture d'entrée d'air du tube, et une position active dans laquelle elle libère au moins en partie l'ouverture d'entrée d'air du tube et dans laquelle une partie avant de la buse de canalisation est adaptée pour entourer une partie du jet de CO2 liquide produit;
- dans sa position active, ladite partie avant de la buse de canalisation forme un tromblon de production de neige carbonique;
- les moyens d'éjection sont interchangeables;
- la lance constitue une lance manuelle comprenant un corps formant poignée d'orientation du jet de CO2 liquide produit, et elle comprend des moyens formant vanne de réglage du débit du jet de CO2 liquide produit, commandés par un organe de commande qui peut être manoeuvré par la main d'un opérateur qui tient le corps formant poignée;
- les moyens de détente progressive comprennent un tube capillaire, et les moyens formant vanne comprennent un organe mobile relié à une extrémité du tube capillaire, et le tube capillaire est enroulé en hélice pour s'adapter au déplacement dudit organe mobile; et
- les moyens formant vanne comprennent un clapet d'arrêt à obturateur, situé en aval desdits moyens de détente progressive, et l'organe de commande comprend une détente reliée à une gâchette d'actionnement de l'obturateur du clapet d'arrêt.
- la figure 1 est une vue en coupe longitudinale d'une lance selon l'invention,
- la figure 2 est une vue à plus grande échelle de la partie cerclée II de la figure 1, la détente étant pressée,
- la figure 3 est une vue à plus grande échelle de la partie cerclée III de la figure 1, la buse de canalisation d'un écoulement d'air étant en position active de canalisation d'un écoulement d'air, et
- la figure 4 est une vue schématique d'une installation de nettoyage de surfaces selon l'invention.
Claims (14)
- Lance de production d'un jet de CO2 liquide, comprenant des moyens (3) de détente du CO2 liquide sous pression reliés d'une part, à des moyens (5) de raccordement à une source (4) de CO2 liquide sous pression, et d'autre part à des moyens (9) d'éjection en un jet du CO2 liquide détendu, caractérisée en ce que les moyens de détente du CO2 liquide comprennent des moyens (3) de détente progressive comprenant un tube capillaire (29).
- Lance selon la revendication 1, caractérisée en ce que les moyens (3) de détente progressive comprennent un tube capillaire (29) enroulé en hélice.
- Lance selon la revendication 1 ou 2, caractérisée en ce que les moyens d'éjection (9) comprennent une buse (91) d'éjection du CO2 liquide détendu munie de moyens (103, 109) de réglage de l'ouverture du jet de CO2 liquide produit.
- Lance selon la revendication 3, caractérisée en ce que lesdits moyens de réglage comprennent des moyens (103, 109) d'injection d'un écoulement d'air dans le jet de CO2 liquide produit, et des moyens (109) de réglage du débit de l'écoulement d'air injecté.
- Lance selon la revendication 4, caractérisée en ce que lesdits moyens (103, 109) de réglage comprennent un organe de canalisation (109) adapté pour entourer une partie amont du jet de CO2 liquide produit et ainsi créer une aspiration d'air entre le jet de CO2 liquide et l'organe de canalisation.
- Lance selon la revendication 5, caractérisée en ce que lesdits moyens (103, 109) de réglage comprennent un tube (103) entourant à distance la buse (91) d'éjection et muni d'une ouverture (107) d'entrée d'air, et une buse (109) de canalisation entourant à distance la buse (91) d'éjection, la buse de canalisation (109) étant manoeuvrable et mobile entre une position rétractée, dans laquelle elle obture l'ouverture (107) d'entrée d'air du tube (103), et une position active dans laquelle elle libère au moins en partie l'ouverture (107) d'entrée d'air du tube et dans laquelle une partie avant (113) de la buse de canalisation est adaptée pour entourer une partie du jet de CO2 liquide produit.
- Lance selon la revendication 6, caractérisée en ce que dans sa position active, ladite partie avant (113) de la buse (109) de canalisation forme un tromblon de production de neige carbonique.
- Lance suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que les moyens d'éjection (9) sont interchangeables.
- Lance selon l'une quelconque des revendications 1 à 8, caractérisée en ce qu'elle constitue une lance manuelle comprenant un corps (1) formant poignée d'orientation du jet de CO2 liquide produit, et en ce qu'elle comprend des moyens (13) formant vanne de réglage du débit du jet de CO2 liquide produit, commandés par un organe (79) de commande qui peut être manoeuvré par la main d'un opérateur qui tient le corps (1) formant poignée.
- Lance selon la revendication 9, caractérisé en ce que les moyens (3) de détente progressive comprennent un tube capillaire (29), et les moyens (13) formant vanne comprennent un organe mobile (37) relié à une extrémité du tube capillaire (29), et en ce que le tube capillaire (29) est enroulé en hélice pour s'adapter au déplacement dudit organe mobile (37).
- Lance selon la revendication 9 ou 10, caractérisée en ce que les moyens (13) formant vanne comprennent un clapet d'arrêt à obturateur (61), situé en aval desdits moyens de détente progressive (3), et en ce que l'organe (79) de commande comprend une détente (83) reliée à une gâchette (85) d'actionnement de l'obturateur (61) du clapet d'arrêt.
- Appareil de production d'un jet de CO2 liquide, caractérisé en ce qu'il comprend d'une part au moins une lance selon l'une quelconque des revendications 1 à 11, associée à au moins une électrovanne de réglage du débit du jet de CO2 liquide produit par la lance, et une unité de pilotage de l'ouverture de la ou de chaque électrovanne.
- Installation de nettoyage de surface par jet de CO2 liquide, caractérisée en ce qu'elle comprend un appareil selon la revendication 12, et des moyens de déplacement relatif d'une surface à nettoyer par rapport à la lance.
- Installation selon la revendication 13, caractérisée en ce qu'elle comprend en outre des moyens d'évacuation du CO2 gazeux produit lors de l'éjection du CO2 liquide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9706872 | 1997-06-04 | ||
FR9706872A FR2764215B1 (fr) | 1997-06-04 | 1997-06-04 | Lance et appareil de production d'un jet de c02 liquide, et son application a une installation de nettoyage de surfaces |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0882522A1 EP0882522A1 (fr) | 1998-12-09 |
EP0882522B1 true EP0882522B1 (fr) | 2003-12-17 |
Family
ID=9507571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980401134 Expired - Lifetime EP0882522B1 (fr) | 1997-06-04 | 1998-05-12 | Lance et appareil de production d'un jet de CO2 liquide, et son application à une installation de nettoyage de surfaces |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0882522B1 (fr) |
DE (1) | DE69820532T2 (fr) |
ES (1) | ES2213263T3 (fr) |
FR (1) | FR2764215B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE515027C2 (sv) * | 1998-07-10 | 2001-05-28 | Sinterkil Ab | Metod och medel för att bilda snö |
DE19926119C2 (de) * | 1999-06-08 | 2001-06-07 | Fraunhofer Ges Forschung | Strahlwerkzeug |
DE102007018338B4 (de) * | 2007-04-13 | 2010-09-23 | Technische Universität Berlin | Vorrichtung und Verfahren zum Partikelstrahlen mittels gefrorener Gaspartikel |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB147953A (en) * | 1918-06-14 | 1921-03-10 | Armand Balthasar | Improvements relating to jets for the evaporation of liquids |
GB652206A (en) * | 1948-01-02 | 1951-04-18 | Charles Reinhold | Improvements in or relating to nozzles for spray guns |
JPS63111462A (ja) * | 1986-10-29 | 1988-05-16 | Hitachi Ltd | ガス混合装置 |
US4806171A (en) * | 1987-04-22 | 1989-02-21 | The Boc Group, Inc. | Apparatus and method for removing minute particles from a substrate |
US5018667A (en) * | 1989-02-08 | 1991-05-28 | Cold Jet, Inc. | Phase change injection nozzle |
US5125979A (en) * | 1990-07-02 | 1992-06-30 | Xerox Corporation | Carbon dioxide snow agglomeration and acceleration |
DE4223006C2 (de) * | 1992-07-13 | 2000-01-20 | Edmar Link | Vorrichtung zum Behandeln von Werkstücken mit einem Druckfluid |
US5514024A (en) * | 1993-11-08 | 1996-05-07 | Ford Motor Company | Nozzle for enhanced mixing in CO2 cleaning system |
-
1997
- 1997-06-04 FR FR9706872A patent/FR2764215B1/fr not_active Expired - Fee Related
-
1998
- 1998-05-12 EP EP19980401134 patent/EP0882522B1/fr not_active Expired - Lifetime
- 1998-05-12 ES ES98401134T patent/ES2213263T3/es not_active Expired - Lifetime
- 1998-05-12 DE DE69820532T patent/DE69820532T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2213263T3 (es) | 2004-08-16 |
FR2764215A1 (fr) | 1998-12-11 |
FR2764215B1 (fr) | 1999-07-16 |
DE69820532T2 (de) | 2004-11-11 |
DE69820532D1 (de) | 2004-01-29 |
EP0882522A1 (fr) | 1998-12-09 |
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