EP1675989A1 - Method and device for conditioning a process - Google Patents
Method and device for conditioning a processInfo
- Publication number
- EP1675989A1 EP1675989A1 EP04790717A EP04790717A EP1675989A1 EP 1675989 A1 EP1675989 A1 EP 1675989A1 EP 04790717 A EP04790717 A EP 04790717A EP 04790717 A EP04790717 A EP 04790717A EP 1675989 A1 EP1675989 A1 EP 1675989A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- primary
- gas stream
- flow
- conditioning
- outlet opening
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/008—Cooling systems
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/002—Climatic conditioning or removing lint or dust
Definitions
- the invention relates to a method and a device for the conditioner of at least one process area.
- conditioning systems are known for cleaning or dedusting machine zones, in particular the supplied warp chains, which direct a directed air jet at a relatively high flow velocity onto the process area to be conditioned via a slot-shaped exit opening and dedust the machine zones, in particular the warp chains, by blowing off ,
- the slot-shaped outlet extends across the full width of the warp and releases a jet of air conditioned against the warp.
- the conditioning size in these conditioning systems is the absence of dust or cleanliness and, if necessary, also the air humidity of the process area, especially the warp.
- a certain disadvantage is the relatively high induction by entrainment and mixing with ambient air, which is generally not or less conditioned, which reduces the conditioning performance, in particular increases the dust input into the conditioned air by induction-induced suction of dust from the ambient air.
- Such systems are described, for example, in EP 0 558 718 B1 as prior art.
- EP 0 558 718 B1 also discloses a method and a device for the air conditioning of weaving machines, in which the climate is locally influenced directly on the weaving machine, that is to say a space area on the weaving machine is conditioned.
- a flow referred to as a “piston-like displacement flow” is understood with an approximately uniform distribution over its full cross section and an approximately the same speed. Exit speeds of between 0.3 and 1.2 m / s are set for the air flow known system for moistening the loom of the loom.
- the conditioning variable is the moisture content of the air.
- the invention is based on the object of specifying a method and a device for the conditioner of a process in at least one process area, in which the disadvantages mentioned are at least partially reduced or completely avoided in the prior art.
- the method according to claim 1 is suitable and determined for the conditioning of at least one process area or a process in at least one process area and comprises the following process steps: a) generating at least one conditioning gas stream which comprises al) at least one primary gas stream and a2) at least one secondary gas stream, a3) wherein the secondary gas stream essentially completely surrounds or surrounds the primary gas stream and a4) the primary gas stream has an at least on average higher flow rate than the secondary gas stream, b) supplying this at least one conditioning gas stream to the or each process area,
- the device according to claim 32 is suitable and intended for the conditioning of at least one process area or a process in at least one process area and / or for carrying out a method according to the invention and comprises means for generating at least one conditioning gas stream which can be supplied or supplied to the or each process area, wherein at least one conditioning gas stream comprises at least one primary gas stream and at least one secondary gas stream, the secondary gas stream essentially completely enclosing the primary gas stream and the primary gas stream having an at least higher flow rate than the
- the invention is based on the consideration of embedding or enclosing a primary gas stream with a comparatively high flow rate in a secondary gas stream with a lower flow rate.
- the secondary gas stream thus surrounds the primary gas stream on a peripheral surface or outer surface surrounding the flow lines or flow direction of the primary gas stream, so that no ambient air can get directly into the primary gas stream from there.
- the induction of ambient air into the rapidly flowing primary gas stream and thus a falsification of the conditioning of the primary gas stream by the ambient air is thus reduced or even completely prevented.
- the primary gas flow with the high flow rate also carries the secondary gas flow with it and aligns it with the flow of the primary gas flow.
- a conditioning gas stream is generated which has a directional characteristic comparable to a known air jet according to the prior art mentioned at the beginning, but on the other hand is less sensitive to a negative influence on conditioning by induction of ambient air than an air jet in the prior art.
- the primary gas stream or streams are generally set to be at least partially turbulent, while the secondary gas stream or streams are at least partially diffuse and / or at least partially laminar.
- the average flow rate of the or each primary gas stream is preferably at least twice, in particular at least five times and preferably at least ten times higher than the average flow rate of the or each associated secondary gas stream.
- the average flow rate of the or each primary gas stream, at least at the beginning is between about 6 m / s and about 20 m / s and / or the average flow rate of the or each secondary gas stream, at least at the beginning, is between about 0.1 m / s and about 2 m / s.
- At least one and preferably each primary gas flow is set along a predetermined or predeterminable main flow direction or in the manner of a jet. It is particularly advantageous if the primary gas flow aligns and / or stabilizes the secondary gas flow at least approximately parallel to the primary gas flow and / or along the set main flow direction.
- the secondary gas flow in turn reduces the induction of unconditioned ambient air by the primary gas flow, in particular practically completely.
- At least one primary outlet opening is provided for the outlet or generation of the or each primary gas stream and at least one secondary outlet opening surrounding the primary opening (s) for the or each secondary gas stream.
- At least one primary gas flow is divided into an inner partial flow and at least one outer partial flow, the secondary gas flow being passed together with the outer partial flow of the primary gas flow and essentially completely surrounding the outer partial flow and the inner partial flow of the primary gas flow initially within at least one flow channel (primary flow channel) is routed separately from the outer partial flow and is united again with the outer partial flow.
- At least one outer sub-stream of the primary gas stream preferably flows at least partially along the outside of the flow channel for the inner sub-stream.
- the direction of flow of the inner partial flow of the primary gas flow in the flow channel generally corresponds at least when exiting the flow channel essentially to the main flow direction of the primary gas flow after combining the inner partial flow and the outer partial flow.
- the primary gas flow or the inner partial flow of the primary gas flow or the flow channel can be set or moved within a predetermined solid angle range, in particular continuously or periodically and / or pivoting, oscillating or rotating.
- the process area to be conditioned or conditioned then generally lies within the solid angle range covered by the primary gas flow or its inner partial flow.
- the conditioning gas stream When viewed downstream, the conditioning gas stream preferably initially decreases in its flow cross section to a constriction region in which the conditioning gas stream has the smallest flow cross section, and then widens again. This narrowing area of the conditioning gas stream is placed in the process area to be conditioned or conditioned.
- the transverse dimensions of the secondary gas flow from the primary gas flow are measured to the outside, or in a preferred embodiment the flow cross section of the secondary gas flow is larger than the corresponding dimensions or the corresponding flow cross section of the primary gas flow, in particular by at least a factor 2, preferably by at least a factor 4 and in particular up to a factor of 10.
- the longitudinal dimension of the secondary gas stream and / or of the primary gas stream, viewed downstream, is preferably between 0.1 m and 1.5 m up to the process area.
- at least one primary gas stream or at least one primary outlet opening has an essentially rectangular and / or elongated and / or elongated flow cross section.
- the flow cross-section of at least one primary gas stream or at least one primary outlet opening is designed to be self-contained, in particular an annular shape.
- At least one primary outlet opening is preferably designed as a nozzle.
- a secondary gas stream can be generated in the interior within a primary gas stream and a further secondary gas stream can be generated on the outside of the primary gas stream facing away from the interior, in particular in a concentric arrangement.
- at least two primary gas streams can be embedded in or surrounded by at least one common secondary gas stream.
- means for generating the at least one conditioning gas stream are provided which, in addition to at least one primary outlet opening as an outlet for the primary gas stream and at least one secondary outlet opening as an outlet for the secondary gas stream, comprise feed means, in particular at least one feed channel, for feeding in conditioning gas, the feed means also the at least one primary outlet opening and the at least one secondary outlet opening are in flow connection or can be brought.
- At least one group of a plurality of secondary outlet openings is preferably provided, which are arranged around the at least one or a group of primary outlet openings. At least one group of secondary outlet openings can extend over a region essentially delimited by a rectangle and / or lie essentially in a common group plane, which is preferably essentially parallel to an outlet plane of at least one primary outlet opening or coincides or inclines with this outlet plane, in particular perpendicular to an exit plane of at least one primary outlet opening.
- the primary outlet opening (s) and the associated secondary outlet openings) of at least one conditioning gas stream are in flow communication with a common feed channel, so that the conditioning gas from this feed channel forms both the at least one primary gas stream and the at least one secondary gas stream of the conditioning gas stream.
- the means for generating the conditioning gas stream expediently comprise at least one housing, in the housing wall of which the primary outlet opening (s) and the secondary outlet opening (s) are formed at least in one outlet region.
- at least one primary inlet opening which is in flow connection or can be brought into connection with the primary outlet opening (s) and at least one secondary inlet opening, are in an inlet region of the housing wall which is different from the outlet region and is connected to the inlet means or adjoins the inlet channel is or can be brought into flow connection with the secondary outlet opening (s).
- At least one primary flow channel can be formed in the housing, which connects the primary inlet opening (s) to the primary outlet opening (s) and in which flow straighteners are preferably arranged or can be arranged to rectify and / or equalize the flow.
- the housing preferably has on opposite sides of the primary flow channel two, in particular essentially symmetrical to the primary flow channel, housing parts, on the outer walls of which both the secondary inlet opening (s) and the secondary outlet opening (s) are arranged and in each of which a secondary flow channel is formed, which connects the secondary inlet opening (s) with the secondary outlet opening (s).
- At least one pre-distributor with a plurality of through openings can be arranged within the housing in the flow path between the secondary inlet opening (s) and the secondary outlet opening (s).
- the or each primary gas stream and / or the or each secondary gas stream are generally essentially stationary, that is to say constant over time, during the conditioning.
- the conditioning gas stream is generally used to set at least one conditioning variable in the assigned process area, in particular the moisture content and / or the temperature and / or the purity and / or the sterility and / or the composition of the gas atmosphere in the process area.
- the conditioning variable (s) in the at least one primary gas stream and in the associated at least one secondary gas stream of the conditioning gas stream are set essentially the same, but can also be set differently from one another.
- a preferred application or use of the method and the device is in a textile production process and / or for the conditioner of a process area on or within a textile machine, in particular a weaving machine, preferably in the area of the warp.
- FIG. 1 shows a schematic diagram of a device for conditioning two process areas, each with a conditioning gas stream
- FIG. 2 shows a device for generating a conditioning gas stream for conditioning a process area in a partially sectioned perspective view
- 3 shows an embodiment of a device for generating a conditioning gas stream consisting of several concentric primary gas streams and secondary gas streams in a view from below
- FIG. 4 shows the embodiment according to FIG. 3 in a representation cut along the flow direction and
- FIG. 5 shows an enlarged view of the outlet area of the primary gas flow of the device according to FIG.
- a feed channel 7 of a conditioning device which runs horizontally and through which a conditioning gas 6 is fed in the direction of the arrow shown, which is conditioned with a conditioning variable K.
- a housing 10 or 10 'of the conditioning device is arranged above two separate process areas 5 and 5' of a process system, not shown, in which processes or sub-processes are carried out.
- inlet openings are formed through which conditioning gas 6 can enter the housing 10 and 10 ′.
- a primary inlet opening is designated by 23 and secondary inlet openings by 26.
- the inlet openings are not further specified.
- Outlet openings are provided on a downward-facing underside of the housings 10 and 10 ', from which the conditioning gas 6 emerges downward to the associated process area 5 and 5'.
- these outlet openings each comprise a central primary outlet opening 13 or 13 'and secondary outlet openings 14 or 14' on the housing 10 or 10 'surrounding this primary outlet opening 13 or 13'.
- the primary entry opening 23 on the top of the housing 10 is for forwarding the conditioning gas 6 passing through it from the supply channel 7 to the primary outlet opening 13 with the primary outlet opening 13 on the underside of the housing 10 via a central slit-shaped pri- 1 and has the same width as the primary outlet opening 13.
- the secondary inlet openings 24 of the housing 10 are connected to the secondary outlet openings 14 via one or more secondary flow channels 16 for passing on the conditioning gas 6.
- the flow guidance and design of the outlets for the conditioning gas 6 in the housing 10 or 10 ' are now selected in such a way that a rapidly flowing primary gas stream 3 or 13' emerges from the primary outlet opening 13 or 13 ', which according to that with a Flow velocity VP or VP 'indicated by the arrow is directed downward to the process area 5 or 5', and from the many small secondary outlet openings 14 or 14 'a secondary gas stream 4 or 4' emerges which surrounds the primary gas stream 3 or 3 ' surrounds and flows at a much lower flow velocity VS or VS 'than the primary gas flow 3 or 3'.
- the primary gas flow 3 is set as a turbulent flow by adjusting the flow velocity VP as a function of the conditioning gas 6 used.
- the secondary gas stream 4 surrounding the primary gas stream 3 is generated as a diffuse flow or at least partially laminar flow.
- the average flow velocity VS or VS 'of the secondary gas flow 4 or 4' is kept low, in particular due to the high flow resistance of the secondary outlet openings 14 or 14 'and the swirling in the secondary flow channel 16, and in particular less than VP or VP'.
- the flow velocity VP of the primary gas stream 3 is usually set between 6 m / s and 20 m / s.
- the flow velocity VS of the secondary gas flow 4 is significantly lower, usually 0.1 m / s to 2 m / s.
- the primary gas flow 3 or 3' Due to its high flow velocity VP or VP ', the primary gas flow 3 or 3' carries the slower secondary gas flow 4 or 4 'as a result of the suction effect or induction caused thereby, so that the Secondary gas stream 4 or 4 ', despite its initially much less directional character, nevertheless receives a directional characteristic and is carried essentially parallel to the primary gas stream 3 or 4'.
- the primary gas flow 3 or 3 remains relatively concentrated due to the high flow velocity VP or VP' or only diverges slightly.
- the secondary gas flow 4 or 4 'initially converges due to the fluid dynamic conditions up to a constriction area 20 or 20' and then widens again (or: diverges).
- the conditioning gas stream 2 or 2 'composed of primary gas stream 3 or 3' and secondary gas stream 4 or 4 ' is now set such that the constriction point or the constriction region 20 or 20' comes to lie in the process region 5 or 5 '
- the length 1 or 1 'of the conditioning gas stream 2 or 2' from the outlet openings 13 or 13 'and 14 or 14' in the flow direction to the process area 5 or 5 'thus covers a converging area of the secondary gas stream 4 or 4'
- Placing the process area 5 or 5 'in the focused area or constriction area 20 or 20' of the conditioning gas stream 2 or 2 ' has the advantage of a more precise setting of the conditioning variable K.
- the constriction area 20 sets the maximum in most applications Distance 1 or 1 'between the air outlet and process area 5, at which the different flow velocities VP and VS of primary gas stream 3 and secondary gas stream 4 are still effective.
- the pressure difference between the supply channel 7 and the downstream area into which the conditioning gas stream 2 or 2 'flows, in particular in the process area 5 or 5', is typically between 100 Pa and 500 Pa.
- a double gas flow with different flow velocities is thus generated with an internal slot nozzle and an outer diffuser outlet surrounding the slot nozzle.
- the primary gas stream 3 or 3 ' serves as a support jet for the secondary gas stream 4 or 4'. Due to the high flow velocity VP or VP 'of the primary gas stream 3 or 3', this cleans the blown-on process area 5 or 5 'and process system parts or machine parts or products to be processed from dust deposits.
- the primary gas flow 3 or 3 ' stabilizes the set direction of the entire conditioning gas flow 2 or 2' and increases the penetration depth of the surrounding diffuse secondary gas flow 4 or 4 '.
- the diffuse secondary gas stream 4 emerging at a low flow velocity VS prevents the induction of unconditioned ambient air 28 and in particular reduces the entry of dust particles from the ambient air 28 into the conditioning gas stream 2 or 2 ′.
- any number of process areas 5, 5 'or machine zones can be supplied with conditioned gas by means of distribution elements such as housings 10 and 10' integrated in the device.
- FIG. 2 shows a specific embodiment of a device for
- the housing 10 comprises two housing parts 17 and 18, which are arranged and formed symmetrically with respect to a central plane M (which is shown in FIG. 2 only as a central axis M in the front cross section) which are separated from one another in the region of the central plane M by a primary flow channel 15 which is designed as a longitudinal slot.
- a feed channel 7 for conditioning gas 6 is again arranged above the housing 10.
- a plate-shaped quantity setting device 30 covering the primary flow duct 15.
- the two housing parts 17 and 18 are connected or integrated with the side parts of the housing.
- the quantity setting device 33 comprises a central, above the primary flow channel 15 between the two housing parts 17 and 18 extending row of slots with linearly one behind the other and spaced apart slot-shaped primary entry openings 23 and on both sides of the row of primary entry openings 23 each one parallel row of spaced-apart secondary inlet openings 24.
- the secondary inlet openings 24 are round in FIG. 2 and each provided with a storage plate 34.
- the conditioning gas 6 which has entered through the secondary inlet openings 24 is guided through a predistributor 19, in particular designed as a perforated plate, with individual openings into a further secondary flow space 36 within the housing part 17 or 18 and then passes through the lateral and lower outer wall of the housing 10 or of the housing parts 17 and 18 of the housing wall 11 arranged secondary outlet openings 14 as a secondary gas flow 4 to the outside, as indicated by the flow arrows.
- the flow of the conditioning gas 6 flowing through the primary inlet openings 23 from the feed channel 7 is aligned in the primary flow channel 15 and flows in a direction predetermined by the primary flow channel 15, which in the example of FIG. 2 is downward, that is to say parallel to gravity, is directed, flows out of the primary outlet opening 13 as the primary gas 3.
- Rectifiers are preferably arranged in the primary flow channel 15, which rectify the flow along the main flow direction, for example an arrangement of juxtaposed, for example rectangular tubes, which are separated from one another by walls.
- the quantity setting is preferably carried out by shifting the quantity setting device 33, specifically in the longitudinal direction in the secondary gas stream 4 and in the primary gas flow 3 in the transverse direction and the change in the flow cross section of the secondary inlet openings 24 or primary inlet openings 23 caused thereby.
- FIG. 5 shows the exit of the primary gas stream 3 from the primary outlet opening 13 according to FIG. 2 in an enlarged and more detailed view.
- the primary gas stream 3 is divided into an inner primary part stream 31 and an outer primary part stream 32 immediately after exiting the primary outlet opening 13.
- the inner partial flow 31 flows through a primary partial flow duct 27 adjoining the primary outlet opening 13, downward in the example of FIG. 2, along its main flow direction and then passes offset to the outer partial flow 32 flowing along the outside of the primary partial flow duct 27 at the side of the Mouth area facing away from primary outlet opening 13 or primary partial flow outlet 29 and then combines again with outer partial flow 32 to form a uniform primary gas stream 3.
- the flow of conditioning gas 6 which has diffusely emerged from secondary outlet openings 14 forms a (diffuse) secondary gas stream 4, which is of the directional effect of the primary gas stream 3 is also oriented downwards and envelops the primary gas stream 3.
- the combination of primary gas streams 3 and 4 again forms a conditioning gas stream 2 which, in particular in the area of the constriction 20, is fed to the process area 5 to be conditioned.
- FIG. 3 and 4 show in two different views an exemplary embodiment with concentrically arranged primary gas streams and secondary gas streams or primary outlet openings and secondary outlet openings.
- conditioning gas 6 flows through a primary flow channel 15 as central primary gas stream 3.
- the central primary outlet opening 13 and the central primary gas stream 3 have an essentially circular disk-shaped cross section.
- the primary outlet opening 13 is surrounded by a multiplicity of secondary outlet openings 21 which generate a first secondary gas stream 4 which surrounds the central primary gas stream 3 and which has an essentially annular flow cross section.
- annular gap opening or self-contained primary outlet opening 12 is again provided concentrically with the central primary outlet opening 13.
- the primary outlet opening 12 is connected via an annular primary flow channel 25 to the feed channel 7 and generates an annular primary gas stream 8 which encloses the inner secondary gas stream 4.
- This second primary gas stream 8 is in turn enveloped by an outer secondary gas stream 9 which is generated by means of outer secondary outlet openings 22 surrounding the second primary outlet opening 12.
- the outer secondary outlet openings 22 are connected to the inlet channel 7 in a manner similar to that shown in FIG. 2 via a secondary flow channel 26 in the housing 10 and inlet openings and secondary inlet openings, which are not further designated.
- the two primary gas streams 3 and 8 can cover different areas in the process area 5 and an improved cleaning effect or blow-off effect can be achieved.
- the inner secondary gas stream 4 is guided very well between the two primary gas streams 3 and 8 and can thus bring about a virtually loss-free or practically not weakened conditioning in the process area 5.
- the primary partial flow duct 27 can be pivotable about a pivot joint or pivot bearing.
- the pivot axis is located in the area of the primary outlet opening 13. This makes it possible to pivot the primary gas stream 3 in a solid angle area and thereby to flow the primary gas stream 3 over this area.
- a larger area in the process area 5 can be conditioned by the primary gas stream 3, for example for blowing off dust, be charged.
- the secondary gas flow 4 is carried along by the directional beam characteristic of the primary gas flow 3 during the pivoting movement.
- the primary partial flow duct could also be pivoted in a ball joint or the like in two angular directions, ie spherically in a solid angle range.
- the gas used for the conditioning gas 6 is generally air or a gas which is very similar to the composition of air in all embodiments, usually air being taken from an outside space or the earth's atmosphere, cleaned and after being exposed to the conditioning variable (conditioning). is fed into the feed channel 7.
- the conditioning of a process area 5 or a process-relevant zone which is made possible with the conditioning gas stream 2 according to the invention, in particular in the embodiments shown, is selected depending on the process running in this process area 5, in particular the products running there or process conditions to be set (process conditions) and can in principle be any conditioning of a process or a process area that can be achieved with a gas stream.
- the conditioning variable is then the liquid content, in particular water content, in the conditioning gas and the process area, in particular the absolute or relative humidity.
- the condition variable here is the dust concentration on the surfaces or the flow velocity of the gas stream blowing off the dust.
- the conditioning variable is then the temperature in the process area.
- the conditioning variable is then the composition of the conditioning gas from various gases or elements.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Duct Arrangements (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10349396A DE10349396A1 (en) | 2003-10-21 | 2003-10-21 | Method and apparatus for conditioning a process |
PCT/EP2004/011912 WO2005040471A1 (en) | 2003-10-21 | 2004-10-21 | Method and device for conditioning a process |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1675989A1 true EP1675989A1 (en) | 2006-07-05 |
EP1675989B1 EP1675989B1 (en) | 2010-10-06 |
Family
ID=34484953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04790717A Not-in-force EP1675989B1 (en) | 2003-10-21 | 2004-10-21 | Method and device for conditioning a process |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1675989B1 (en) |
AT (1) | ATE483838T1 (en) |
DE (2) | DE10349396A1 (en) |
WO (1) | WO2005040471A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH684101A5 (en) | 1991-09-23 | 1994-07-15 | Luwa Ag | Method and apparatus for Webmaschinenklimatisierung. |
DE4309416A1 (en) * | 1993-03-15 | 1994-10-20 | August Proett Gmbh & Co Kg K | Process and apparatus for work-zone and room-air conditioning preferably for textile machines |
EP0646192B1 (en) * | 1993-04-16 | 1996-11-13 | Luwa AG | Installation for controlling the ambiant conditions in textile-processing processes |
US5910598A (en) * | 1994-11-02 | 1999-06-08 | Shofner Engineering Associates, Inc. | Modular process zone and personnel zone environmental control with dedicated air jet cleaning |
US6128832A (en) * | 1999-06-04 | 2000-10-10 | Ltg Air Engineering, Inc. | Method and system for providing conditioned air |
-
2003
- 2003-10-21 DE DE10349396A patent/DE10349396A1/en not_active Ceased
-
2004
- 2004-10-21 DE DE502004011757T patent/DE502004011757D1/en active Active
- 2004-10-21 WO PCT/EP2004/011912 patent/WO2005040471A1/en active Application Filing
- 2004-10-21 EP EP04790717A patent/EP1675989B1/en not_active Not-in-force
- 2004-10-21 AT AT04790717T patent/ATE483838T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO2005040471A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE483838T1 (en) | 2010-10-15 |
EP1675989B1 (en) | 2010-10-06 |
WO2005040471A1 (en) | 2005-05-06 |
DE10349396A1 (en) | 2005-06-16 |
DE502004011757D1 (en) | 2010-11-18 |
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