EP0986723B1 - Dispositif de compression d'un fluide compressible - Google Patents
Dispositif de compression d'un fluide compressible Download PDFInfo
- Publication number
- EP0986723B1 EP0986723B1 EP98928410A EP98928410A EP0986723B1 EP 0986723 B1 EP0986723 B1 EP 0986723B1 EP 98928410 A EP98928410 A EP 98928410A EP 98928410 A EP98928410 A EP 98928410A EP 0986723 B1 EP0986723 B1 EP 0986723B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- casing
- pressure
- section
- upstream
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/15—Duct humidifiers
Definitions
- the invention relates essentially to a compression device air.
- the prior devices are generally based on the use of a mixture of air flows at different temperatures to regulate the temperature at the desired temperature, at constant pressure.
- document DE-A-36 44 590 describes in particular in relation to FIGS. 12 to 14, an embodiment of an apparatus for air conditioning of a room comprising an air diffuser 55 with flow induction variable by the presence of a device 57 for partially closing the opening 21 outlet, which performs a flow variation but using the same pressure as incoming pressure. It is therefore a classic system where the outlet pressure is essentially identical to the incoming pressure and from the complete opening to the complete closure, the air outlet pressure remains unchanged, so that the length of the air jet changes according to the value of the useful outlet opening 21.
- document US 3,776,470 describes a nozzle device with variable opening for the transport of various fluids which may include solid flowable particles which still operate on the same principle as previous documents, with no obstruction upstream which would be moreover contrary to the principle of circulation, in particular of solid particles flowable.
- the main object of the present invention is to solve the new technical problem consisting in the supply of a solution, which allows compressing a compressible fluid, preferably air, at a variable pressure, in a particularly simple, inexpensive way, from of an incident flow at substantially constant pressure.
- the main object of the present invention is also to resolve the new technical problem consisting in providing a solution which allows a jet of fluid to be produced at substantially constant range, this flow being advantageously air, which makes it possible to produce an apparatus for air conditioning of at least one room.
- the main object of the present invention is also to resolve the new technical problem consisting in providing a solution which allow compression of a compressible fluid, preferably of air with self-regulation or automatic flow compensation, by thus eliminating the need for pipes, pumps, batteries cold or hot, all the necessary power can now be directly transmitted to the fluid, making it possible, moreover, to obtain comfort unmatched in air conditioning. Furthermore, the object of the invention is to allow compression of a compressible fluid, preferably air, traveling at high speed, allowing the implementation of various variants allowing use in all sectors of air conditioning ranging, for example, from the offshore platform to housing, thereby opening up new market sectors, in particular thanks to a particularly high production cost low compared to the previous product (s) on the market.
- the present invention aims to solve these new problems simple, inexpensive, reliable, scalable industrial and as part of the air conditioning of industrial premises or houses.
- the present invention results simultaneously in all of these results.
- the present invention relates to an apparatus making it possible to obtain a jet of fluid preferably at constant range comprising a conduit for confining said fluid, open at both upstream and downstream ends, provided at its downstream end with at least one device for compressing said fluid compressible comprising a deformable envelope between an opening section maximum and a minimum opening section, characterized in that it comprises, at its upstream end, at least one member intended to regulate the loss of charge of incoming fluid thereby increasing air pressure crossing the envelope from a minimum pressure for the maximum opening at maximum pressure for minimum opening, thus providing pressure of fluid at the outlet of the variable device from an incident pressure flow substantially constant.
- the invention allows energy transfer from the upstream part to the downstream part thanks to the presence of at least one member provided to adjust the pressure drop of the incoming flow.
- the flow is maximum and the pressure drop is maximum, from so that the pressure of the fluid leaving the apparatus of the invention is minimal, that is to say very different from the pressure of the incoming flow while when the opening is almost closed, the outflow is minimal, so that the loss load in the pressure drop adjuster tends to zero, which transfers pressure from this pressure drop device to the outlet of the device and the outlet pressure is then maximum.
- the entire device is essentially coaxial aligned, i.e. the upstream pressure drop member has its axis essentially aligned with the axis of the downstream compression device and also preferably with the axis of a fluid confinement duct possibly present, for maximum energy recovery, with minimal turbulence in and out of the aircraft which minimizes the noise, the device is preferably constructed with an internal duct profile according to the substantially perfect ventilation angle, generally of the order of 7 °.
- the regulating member aforementioned pressure drop comprises at least one cylinder subdivided into a multitude of pipes of predetermined diameter for passage of said fluid thus making it possible to obtain a predetermined pressure drop by increasing the flexibility of use of the aforementioned downstream pressure variator device.
- this device is characterized in that it includes upstream several pressure drop members, can be plug-in, so as to increase the total length of the pipes thus varying the pressure drop, which influences the value of the pressure of fluid at the outlet of the device.
- the device is provided with at least one partial obturation member advantageously upstream of the aforementioned member for adjusting the pressure drop of the incoming fluid being able to be inactive, partially active or completely inactive being close to or away from the pressure drop control member, in order to ensure fine adjustment of the pressure drop.
- this device is characterized in that the aforementioned envelope is preferably of revolution and present for its maximum opening section a substantially cylindrical section.
- the deformable envelope present for its opening section at least one essentially flattened section.
- this device is characterized in that that it includes means for varying the section of the deformable envelope supra.
- the means for varying the section of the above-mentioned envelope are controlled by an external control member at the envelope, not interfering with the opening section of the envelope deformable.
- the aforementioned deformable envelope comprises a membrane, which, in the undeformed state, has an essentially cylindrical, for example made of rubber, elastomer, a weak metal thickness or thin blade, or similar materials.
- the means of variation in the section of the aforementioned deformable envelope include at at least two flattening elements arranged substantially diametrically opposite with respect to the axis of symmetry of the above-mentioned envelope of revolution.
- the two elements mentioned above comprise a substantially planar blade mounted in rotation according to a axis of rotation substantially perpendicular to the axis of symmetry of the envelope aforementioned revolution, said axis of rotation being arranged outside the section maximum envelope opening.
- the blades substantially above-mentioned planes comprise at least towards the free outlet end of the fluid two wedge elements, of predetermined thicknesses, arranged diametrically opposite with respect to the aforementioned envelope of revolution of way to come, at the end of the race, close the revolution envelope in its part central, leaving two open areas offset off the axis of revolution so as to obtain a flow of fluid at maximum pressure.
- the aforementioned deformable envelope has a predetermined length, which can advantageously be about at least twice its diameter.
- the above compressible fluid is generally a gas, advantageously air, which makes it possible to envisage the use of the above-mentioned device within the framework of an apparatus making it possible to obtain a jet of fluid within range substantially constant, as well as in the context of air conditioning of at least one local, as will be described below with reference to the second aspect of the invention.
- the present invention also covers a apparatus making it possible to obtain a jet of fluid preferably at substantially range constant, characterized in that it comprises a containment conduit for said fluid, open at both upstream and downstream ends, provided at its downstream end with minus a compression device as defined above.
- the aforementioned containment conduit has an internal surface of progressively decreasing diameter from upstream to downstream, to increase the speed of passage of the fluid.
- this aforementioned device is intended for the air conditioning of at least one room and is characterized in that it further comprises a fluid injection system at a predetermined temperature to correct the temperature or humidity of said room.
- the said injection system is arranged in the vicinity of the downstream outlet of said fluid, preferably offset from the axis of the envelope of revolution supra.
- the system can be arranged outside the containment pipe mentioned above.
- the apparatus according to the invention is characterized in that the injection system comprises a pipe additional fluid injection, the diameter of which is approximately 2 to 4 times less than the diameter of the above-mentioned envelope of revolution in the non-deformed state.
- the system of the aforementioned injection is placed inside the aforementioned containment piping near its upstream end.
- the aforementioned containment piping is itself arranged inside a fluid supply sheath of said room.
- the device is characterized in that the aforementioned containment piping is arranged in said sheath in the vicinity of a fluid intake inlet from said room, said admission preferably being carried out by external mechanical means, such as than a fan.
- this device is characterized in that the aforementioned fluid consists of air and said local includes at least one room in an industrial premises, or a dwelling.
- the invention it is possible to adjust the outlet pressure of the fluid of the compression device, such as air, which makes it possible to obtain a jet of fluid at substantially constant range, without changing the fluid pressure entering and thus achieve air conditioning of at least one room in conditions ideal, energy efficient, with an extremely simple structure, much less expensive than devices previously used for the air conditioning of rooms.
- FIG. 1 there is shown a sectional view longitudinal of a device, represented by the general reference number 10, of compression of a compressible fluid 12, here incorporated in an apparatus, represented by the general reference number 100, making it possible to obtain a jet of fluid at substantially constant range, thanks to the generation of pressure variable output from an incident flow at substantially constant pressure, this pressure variation being obtained thanks to the presence of at least one member 120 pressure drop adjustment arranged upstream and which will be described more precisely further.
- the different devices or organs of the apparatus 100 are essentially coaxially aligned.
- the device 10 according to the invention for compressing a fluid compressible 12 is characterized in that it comprises an envelope 20 deformable, here of revolution, between a maximum opening section, shown in Figure 1, partly in phantom in Figure 2, in phantom in Figure 3 and in solid lines in FIG. 4, and a minimum opening section, represented by solid line in Figure 2, Figure 3 and Figure 6.
- This deformable envelope 20 thus makes it possible to increase the pressure air passing through said envelope from a minimum pressure for opening maximum, at maximum pressure, for minimum opening, as is understandable to a person skilled in the art.
- the envelope 20 aforementioned deformable present for its maximum opening section, shown in Figures 1, 4 and 7, a substantially cylindrical section, which is also clearly visible in these figures.
- the envelope 20 has, for the maximum opening, a substantially flattened section.
- the device 10 is characterized in that it comprises means 30 for varying the section of the aforementioned deformable envelope 20.
- the means 30 of variation of the section of the envelope 20 are controlled by a member (40) of control outside the envelope 20, not interfering with the section opening of the deformable envelope 20.
- This control member 40 can for example comprising a roller 42, for example of ellipsoidal shape, defining a large diameter D and a small diameter d, clearly visible at the Figure 2, mounted in rotation along an axis of rotation 44, arranged essentially perpendicular to the plane defined by the ellipsoidal roller 42 and which is controlled by conventional type rotation control means, well known in those skilled in the art, and who are therefore not represented here for better understanding of the figures.
- the device 10 is characterized in that the above deformable envelope 20 comprises a membrane 22, which in the non-deformed state, represented in FIGS. 1, 4, 7 and 8, has an essentially cylindrical shape, for example made of rubber, elastomer or similar materials.
- the means 30 for varying the section of the deformable envelope 20 mentioned above comprise at least two flattening elements, respectively 32, 34, clearly visible in the figures, arranged substantially diametrically opposite with respect to the axis X-X of symmetry, in particular represented in FIG. 2, of the envelope 20 of the aforementioned revolution.
- the two elements 32, 34 here comprise a substantially planar blade mounted in rotation along an axis of rotation 36, 38, clearly shown in Figure 2, substantially perpendicular to the axis of symmetry X-X of the envelope of revolution 20.
- the substantially planar blades include towards the free end of the fluid outlet at least two elements 50, 52 forming shims of predetermined thickness arranged diametrically opposite with respect to the aforementioned envelope of revolution 20, so as to come to the end of its travel, close the envelope of revolution 20 in its central part, as shown in line full in Figure 2, in Figure 3, thus leaving no space remaining on the distance defined by the shim elements 50, 52, as clearly visible at Figure 3, but leaving two open areas respectively referenced Z1, Z2 in FIG. 3, off-axis with respect to the axis X-X of symmetry of so as to obtain a flow of fluid at maximum pressure.
- elements 50, 52 forming shims are not essential and they can be eliminated if it is desired to obtain a complete closure of the outlet opening, as this is possibly advantageous in certain systems of air conditioning when you want to isolate a given room.
- the envelope of revolution 20 above has a predetermined length, which can advantageously be about at least twice its diameter.
- the means 30 for varying the section of the envelope 20, here preferably comprising the flattening elements 32, 34, in the form substantially planar blades are applied against the surface of the control 40, here in the form of a roller 42, by unilateral pushing means 60, such as springs 62, or other equivalent means;
- said apparatus is characterized according to the invention in that it comprises a conduit 110 for confining said fluid 12, open at the two upstream ends 112 and downstream 114, provided at its downstream end 114, with at least one device 10, according to the present invention as previously described.
- the apparatus 100 is, according to one embodiment advantageous, characterized in that it comprises at its upstream end 112 at least a member 120 provided for adjusting the pressure drop of the incoming fluid.
- this member 120 creating and regulating a pressure drop comprises at least one cylinder, such as 122, 124, 126, shown diagrammatically in FIG. 1 and shown more precisely in FIGS. 8 and 9, subdivided into a multitude of tubes, such as 130, which can be clearly seen in the Figures 8 and 9, of predetermined diameter of passage of said fluid thus allowing to obtain a predetermined pressure drop, by increasing the flexibility of use of the aforementioned device 10 and the downstream pressure variation.
- the apparatus 100 is characterized in what it includes upstream several pressure drop members, for example three references 122, 124, 126, which can be plug-in, as is good understandable to a person skilled in the art, so as to increase the total length of the pipes 130, thereby varying the pressure drop, which influences the value of the fluid pressure at the outlet of the device 100, for a pressure substantially constant of the incident flow entering the device.
- upstream several pressure drop members for example three references 122, 124, 126, which can be plug-in, as is good understandable to a person skilled in the art, so as to increase the total length of the pipes 130, thereby varying the pressure drop, which influences the value of the fluid pressure at the outlet of the device 100, for a pressure substantially constant of the incident flow entering the device.
- the said containment pipe 110 has, on at least part, a internal surface 140 of progressively decreasing diameter from upstream to downstream, to increase the speed of passage of the fluid.
- FIG 9 there is shown a possible modification of the organ 120 pressure drop, particularly advantageous for large installations, where we are looking for a precise adjustment of the pressure drop which can be alternatively to the adjustment obtained by the number of aforementioned discs 122, 124, 126 and which consists in providing at least one member 132 for partially closing the section active of the pressure drop member 120, here for example arranged upstream but which can also be arranged downstream, this member 132 is advantageously arranged in upstream for easy adjustment and is mounted movable in translation substantially along the axis of symmetry of the device 100 marked X-X in Figure 9 in being integral for example with a threaded rod 133 cooperating with an element forming nut 134 of fixed position.
- This partial obturation member 132 can have a maximum impasto or diameter D capable of closing as much as possible about 50% of the inlet surface of section S of the inlet conduit 102 of the flow, for example air. It may be advantageous to profile the upstream part of the member 132 partial obturation, for example here in a frustoconical form so to create the minimum of turbulence on the upstream incoming flow.
- the member 132 is screwed onto the screw 133, the member 132 is moved towards or away partial shutter which is made more and more active or vice versa more inactive depending on the distance from the surface of the organ of the first pressure drop member 122.
- this organ 132 comes apply to the surface of the first pressure drop member 122, it will seal completely the orifices 130 arranged inside its impasto. Thanks to this adjustment, it is possible to vary the flow rate by 50% and therefore adjust the loss of charge worth 1 to 4, as is understandable to a man of art.
- the apparatus of the invention 100 for the air conditioning of at least one room, this is characterized in that it comprises in addition to a fluid injection system 150 152 at a predetermined temperature to correct the temperature or humidity of said room, preferably arranged outside the containment pipe 110.
- the system 150 of the aforementioned injection is placed in the vicinity of the downstream outlet of said fluid 12, as shown in Figure 1, preferably offset from the axis X-X of the envelope 20 of revolution, as shown in FIG. 1.
- the system 150 injection system includes a complementary fluid injection line 154 whose diameter is about two to four times less than the diameter of the aforementioned envelope 20 of revolution in the non-deformed state, shown in particular to Figures 4, 7 and 8.
- the aforementioned injection system may be arranged to inside the containment piping 110, near its end upstream.
- the aforementioned containment piping 110 may itself be disposed inside a sheath 160 for supplying fluid to said room.
- the containment piping 110 can be arranged in said sheath 160 in the vicinity of a fluid inlet inlet 162 12a of then said room, by an appropriate intake duct 164, said admission being preferably performed by external mechanical means 166, such as a fan.
- the aforementioned fluid is preferably constituted by air and said room comprises at least one room of an industrial room or a dwelling.
- the heating power is no longer regulated by reducing the air flow.
- the flow is fixed at a stable value and a thermostat regulates a flow hot water or the power of an electric heater.
- the invention makes it possible to reduce the hot power from 100% to 25% or cold by reducing only slightly or not more than about 25% the downstream flow.
- the high induction rates obtained do not generate no cold or hot air flow at low flow upstream because the supply air is at a temperature close to the room temperature, leading to an improvement of the air trajectory, which is outside the area of occupation, this trajectory being substantially horizontal, whatever the flow, by increase pressure.
- the diagram of upstream air flow and downstream flow shown in FIG. 10 is obtained, for a pressure of 290 Pascal of the incoming fluid.
- the downstream flow will make it possible to obtain a total flow, which will always be greater than 100 m 3 per hour, thanks reduction of the fluid outlet section 12 of the compression device 10 according to the invention, which makes it possible to increase the induction rate, under the influence of three factors, which are the rise in pressure and speed on the outlet head, as the flow rate decreases, until the fluid pressure in the outlet is almost doubled, reducing the volume of the compressed air jet 12 inside the sheath 160, frees up an increasingly large space for the induced air and the maintenance of the contact perimeter of the induced air jet due to the flattening of the envelope 20 of deformable revolution mentioned above.
- the upstream pressure drop of block 120 is initially set to a maximum value so that when reducing the flow upstream by 50% the reduction in pressure drop corresponding to the reduction in flow of about 50% is found downstream, so that the pressure of the outgoing flow is increased by a pressure value corresponding substantially to three quarters of the difference in pressure drop obtained.
- a pressure drop of the initial 200 Pa upstream block and a flow outlet pressure value about 200 Pa if the flow is reduced by 50%, the upstream pressure drop becomes 50 Pa, and the pressure drop difference of 150 Pa is found substantially downstream at diaphragm level, so the outlet pressure is now about 350 Pa.
- the incoming flow pressure remained unchanged at 400 Pa. thus observes that in accordance with the apparatus according to the invention from a flow incident at substantially constant pressure, variable pressure is obtained outgoing air flow.
- the invention thus makes it possible to obtain a blowing temperature of great comfort since it can be very close to room temperature.
- downstream flow With a power reduction of at least 80% the downstream flow will be equal to 140 m 3 per hour and the induction rate will increase to 7.7, for a minimum opening of the envelope 20 of the revolution, whereas previously the opening was maximum.
- the transfer device maintains a range air substantially constant and in fact allows the air flow to self-regulate or automatically compensates by causing the removal of the need to pipes, pumps, cold or hot coil, all the power needed can now be directly transmitted to air or any equivalent fluid, for unparalleled comfort.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Gas Separation By Absorption (AREA)
- External Artificial Organs (AREA)
- Control Of Fluid Pressure (AREA)
- Pipe Accessories (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9706734 | 1997-06-02 | ||
FR9706734A FR2764006B1 (fr) | 1997-06-02 | 1997-06-02 | Dispositif de compression d'un fluide compressible |
PCT/FR1998/001103 WO1998055808A1 (fr) | 1997-06-02 | 1998-06-02 | Dispositif de compression d'un fluide compressible |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0986723A1 EP0986723A1 (fr) | 2000-03-22 |
EP0986723B1 true EP0986723B1 (fr) | 2003-03-19 |
Family
ID=9507478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98928410A Expired - Lifetime EP0986723B1 (fr) | 1997-06-02 | 1998-06-02 | Dispositif de compression d'un fluide compressible |
Country Status (10)
Country | Link |
---|---|
US (1) | US6318706B1 (ja) |
EP (1) | EP0986723B1 (ja) |
JP (1) | JP2002502488A (ja) |
AT (1) | ATE235028T1 (ja) |
AU (1) | AU8024598A (ja) |
CA (1) | CA2291587A1 (ja) |
DE (1) | DE69812355T2 (ja) |
ES (1) | ES2195348T3 (ja) |
FR (1) | FR2764006B1 (ja) |
WO (1) | WO1998055808A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009007430A1 (fr) * | 2007-07-10 | 2009-01-15 | Edmond Montaz | Appareil de controle de debit d'un fluide gazeux ayant une vitesse elevee |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020190404A1 (en) * | 2001-03-27 | 2002-12-19 | Baarda Isaac F. | Gas/liquid contact chamber and a contaminated water treatment system incorporating said chamber |
US6568661B1 (en) * | 2001-05-03 | 2003-05-27 | Tomco2 Equipment Co. | Diffuser for use in a carbonic acid control system |
US7097120B2 (en) | 2001-11-29 | 2006-08-29 | Watershield Llc | Hose nozzle apparatus and method |
US20060016952A1 (en) * | 2004-07-21 | 2006-01-26 | Ultimate Support Systems, Inc. | Support apparatus and methods for one or more items |
US7258285B1 (en) | 2005-01-14 | 2007-08-21 | Elkhart Brass Manufacturing Company, Inc. | Adjustable smooth bore nozzle |
WO2008078140A1 (en) * | 2006-12-27 | 2008-07-03 | Renault Trucks | Nozzle, lubrication system and internal combustion engine comprising such a nozzle or such a system |
BE1021395B1 (fr) * | 2013-03-05 | 2015-11-16 | W Properties Sprl | Climatiseur |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2546293A (en) * | 1949-01-24 | 1951-03-27 | Henry A Berliner | Variable area tail pipe for jet engines |
US2986002A (en) * | 1957-06-05 | 1961-05-30 | Curtiss Wright Corp | Leaky-type exhaust nozzle for jet propulsion devices |
US2959359A (en) * | 1959-03-02 | 1960-11-08 | Casaletto Joseph | Adjustable spray nozzle with resilient body |
US3143293A (en) * | 1961-04-13 | 1964-08-04 | Universal Oil Prod Co | Variable-area nozzle |
US3427006A (en) * | 1965-04-12 | 1969-02-11 | Automotive Rubber Co Inc | Variable orifice gas scrubber |
US3473738A (en) * | 1967-11-29 | 1969-10-21 | Jorge J De Mattos | Hose control device |
US3498541A (en) * | 1968-03-25 | 1970-03-03 | Goodyear Tire & Rubber | Apparatus for altering the shape of an electrostatic spray pattern |
US3776470A (en) * | 1971-09-30 | 1973-12-04 | Gen Mills Inc | Variable nozzle |
US3848799A (en) * | 1973-07-12 | 1974-11-19 | Connor Eng Corp | Ceiling air diffuser |
DE3644590A1 (de) * | 1986-12-27 | 1988-07-14 | Ltg Lufttechnische Gmbh | Lufttechnisches geraet zum einblasen von zuluft in einen raum |
US4789104A (en) * | 1987-02-24 | 1988-12-06 | Specialty Manufacturing Co. | High pressure coaxial flow nozzles |
-
1997
- 1997-06-02 FR FR9706734A patent/FR2764006B1/fr not_active Expired - Fee Related
-
1998
- 1998-06-02 US US09/445,064 patent/US6318706B1/en not_active Expired - Lifetime
- 1998-06-02 EP EP98928410A patent/EP0986723B1/fr not_active Expired - Lifetime
- 1998-06-02 JP JP50171599A patent/JP2002502488A/ja active Pending
- 1998-06-02 DE DE69812355T patent/DE69812355T2/de not_active Expired - Lifetime
- 1998-06-02 WO PCT/FR1998/001103 patent/WO1998055808A1/fr active IP Right Grant
- 1998-06-02 AT AT98928410T patent/ATE235028T1/de not_active IP Right Cessation
- 1998-06-02 CA CA002291587A patent/CA2291587A1/fr not_active Abandoned
- 1998-06-02 AU AU80245/98A patent/AU8024598A/en not_active Abandoned
- 1998-06-02 ES ES98928410T patent/ES2195348T3/es not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009007430A1 (fr) * | 2007-07-10 | 2009-01-15 | Edmond Montaz | Appareil de controle de debit d'un fluide gazeux ayant une vitesse elevee |
FR2918721A1 (fr) * | 2007-07-10 | 2009-01-16 | Edmond Montaz | Appareil de controle de debit de fluide gazeux. |
Also Published As
Publication number | Publication date |
---|---|
DE69812355T2 (de) | 2004-02-05 |
AU8024598A (en) | 1998-12-21 |
FR2764006B1 (fr) | 2002-05-10 |
CA2291587A1 (fr) | 1998-12-10 |
DE69812355D1 (de) | 2003-04-24 |
WO1998055808A1 (fr) | 1998-12-10 |
ES2195348T3 (es) | 2003-12-01 |
JP2002502488A (ja) | 2002-01-22 |
FR2764006A1 (fr) | 1998-12-04 |
EP0986723A1 (fr) | 2000-03-22 |
US6318706B1 (en) | 2001-11-20 |
ATE235028T1 (de) | 2003-04-15 |
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