CN1369648A - Rotor ventilator - Google Patents
Rotor ventilator Download PDFInfo
- Publication number
- CN1369648A CN1369648A CN01103752.0A CN01103752A CN1369648A CN 1369648 A CN1369648 A CN 1369648A CN 01103752 A CN01103752 A CN 01103752A CN 1369648 A CN1369648 A CN 1369648A
- Authority
- CN
- China
- Prior art keywords
- rotor
- bearing
- ventilator
- bearing device
- flat board
- 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
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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
- F24F7/00—Ventilation
- F24F7/02—Roof ventilation
- F24F7/025—Roof ventilation with forced air circulation by means of a built-in ventilator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/005—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues using fans
Abstract
The present invention has opened a ventilator with rotator to the public, which includes base and rotator with base connecting with shaft elongated upwards and rotator rotating around shaft, a plance plate and several blades elongated downwards as well as supporting device to support the rotator on the shaft as the supporting device placed at plane plate and above centre of rotator gravity.
Description
The present invention relates to ventilator, particularly roof (Roof-top) rotor ventilator.
The present invention mainly develops as the ventilator on roof, hereinafter will narrate the present invention with reference to the application.But it being understood that the present invention is defined in this specific application.
Use the rotor air-ejecting fan on roof to help combustion gas from the building that adopts rotor ventilator.These buildings can be factory, farm, storehouse or home dwelling.
The mechanism of the rotor ventilator on roof is: the air flows of passing ventilator will cause ventilator to center on its vertical shaft and rotate, air flows causes that the blade of ventilator forces air to come out from ventilator, cause the air pressure of ventilator inside to be lower than the air pressure of the interior of building when the fluid communication ventilator.Therefore, the air in the building passes that ventilator flows and the outside that is discharged to building.
The efficient of the rotor ventilator on roof depends on a plurality of factors, but main be to make ventilator rotate required initial torque; The amount of friction that stops ventilator to rotate; Structure with blade.
In specification and claims, the relatively employed term of rotor ventilator " top (upper) ", " top (above) " and " bottom (1ower) " relate to the orientation of normally used rotor ventilator.As rotor ventilator is used in side direction or inverted structure, then their orientation can be reverse.Therefore, " top ", " top " and " bottom " have in this implication widely to be understood, and as relative term.
According to an aspect of the present invention, the rotor ventilator that provides comprises:
A support, axle is connected on this support and from pedestal and upwards stretches;
A rotor, this rotor have a flat board and a plurality of blade that stretches from flat board downwards, and rotor can rotate around axle; With
Be used for rotor bearing on axle and be positioned at dull and stereotyped bearing device.
This bearing device preferably is configured in dull and stereotyped top, and a rotating bearing assembly is arranged, and can comprise a biserial supporting seat ring successively.
Rotor ventilator comprises also that preferably one is installed to rotor and turns the bearing device of installing with bearing.This bearing device also preferably includes a bearing device that is used to be pivotally mounted on the axle, flat board placed in the middle substantially and support.
Each blade of rotor ventilator preferably is installed to flat board by the joint fixing device, the joint boss that this joint fixing device has at least an energy to admit in the respective grooves of flat board.
According to a second aspect of the invention, provide the bearing device that rotor is rotated in one way in supporting, this mode makes the center of gravity of rotor under bearing device.
The rotor of second aspect present invention preferably includes a flat board, and this flat board has a plurality of from its blade that stretches downwards, and wherein bearing device is suitable for being installed on the flat board.Bearing device preferably is positioned at dull and stereotyped top in addition, and comprises a rotating bearing assembly of dual-supporting seat ring.
According to other aspects of the invention, provide a kind of rotor that is used for rotor ventilator, this rotor comprises a plurality of blades that stretch from supporting.Wherein there is a respective grooves joint boss of locating that is used in supporting the end of each blade.
Only with reference to following accompanying drawing most preferred embodiment of the present invention is described now with way of example:
Fig. 1 is the side view of first preferred example of rotor ventilator of the present invention;
Fig. 2 is the plane view that removes the rotor ventilator of vault among Fig. 1;
Fig. 3 is the cross-sectional side view of Fig. 1 rotor ventilator;
Fig. 4 is the plane view that rotor ventilator removes another embodiment of vault;
Fig. 5 is the side cross-sectional view of Fig. 4 rotor ventilator; With
Fig. 6 is the bearing partial cut away side views.
With reference to accompanying drawing, wherein adopt like the same numeral representation class or identical part.Fig. 1 to Fig. 3 and Fig. 6 show first most preferred embodiment according to rotor ventilator of the present invention, and this rotor ventilator comprises support, and support is a hollow cylindrical support spare 10, and it is used to be installed in roofing, wall, ceiling board, ground etc.This support spare 10 can make air pass its perforate 11 and enter the inside 12 of rotor ventilator.Axle 13 is connected with this support spare and upwards stretches.This increase lateral stability is general to adopt a carriage 14 in order to make, and axle is installed on the support spare 10.Carriage 14 comprises underframe brace and upper frame brace.Each framework brace 15 and 16 formation will guarantee that air flows through support parts 10 and enters rotor ventilator and do not hindered basically at inner 12 o'clock.
For each blade 19 is installed between flat board 18 and the annulus 21, although in alternative embodiment, can there be the joint 23 of varying number each end 20 and 22, and there are four protrusion joints 23 each end 20 and 22 of each blade 19 in the present embodiment.When making blade 19, joint 23 is planar alignment with their corresponding blades 19.Utilizing these to protrude joint 23 is installed to the end 20 and 22 of each blade in the corresponding flat board 18 and annulus 21.In order to realize this installation, flat board 18 and annulus 21 have and protrude joint 23 corresponding grooves.For the end 20 that makes blade 19 is installed on dull and stereotyped 18, joint 23 passes their corresponding grooves on dull and stereotyped 18, and side direction is folded on the flat board then, is in Fig. 2 and mounting point shown in Figure 3.So just the end 20 with blade 19 is fixed on dull and stereotyped 18.Equally, for the end 22 blade 19 is fixed to annulus 21, the protrusion joint 23 on the end 22 passes the respective perforations on the annulus 21, then by in a similar fashion joint 23 being folded on the end 20.So just the end 22 with blade 19 is fixed on the annulus 21.
This with blade installation to dull and stereotyped 18 and the method for annulus 21 need not require extra securing means.As blade 19 being installed to dull and stereotyped 18 and required rivet or the screw of annulus 21, thereby the advantage of bringing is: reduce the gross weight of rotor and reduce manufacturing time and the cost of making rotor ventilator.
When air flow through the blade 19 of rotor, the leading edge 24 of blade 19 can be caught the air that passes that makes rotor rotation.To the situation of the embodiment of the invention shown in Figure 5,, rotor is moved in the direction of the clock at Fig. 1 by the air flows of passing rotor ventilator.Blade 19 makes the air of rotor ventilator inside discharge from blade by the motion of surrounding atmosphere.The air of realization rotor ventilator inside is discharged from blade, is because the inner air that exists of trailing edge 25 and rotor ventilator runs through mutually, forces air to discharge rotor ventilators through blade 19.This has just reduced the air pressure of rotor ventilator inside 12.Like this, the perforate 11 of the air of elevated pressures by support spare 10 by on be discharged in the ventilator, and discharge basically from rotor ventilator.
Rotor ventilator also comprises bearing means, and this bearing means is the form of supporting structure 26, is used to be bearing in the rotation of the rotor 17 on the axle 13.This supporting structure 26 generally is installed in dull and stereotyped 18 top, the supporting point of the rotor on the axle 13 17 just is positioned at the center of gravity top of rotor 17, and supporting structure 26 is still remained in the rotor ventilator.
Be provided with supporting structure 26 at dull and stereotyped 18 tops and have a plurality of advantages.The position of supporting structure 26 above dull and stereotyped 18, the center of gravity that just means rotor 17 is just under supporting structure 26 supporting points of axle 13.Therefore, rotor is suspended on the supporting structure basically.This has just created condition for rotor ventilator has big stability in use, and this is because can reduce laterally moving of rotor.If it is that this horizontal moving can be taken place that supporting point is lower than center of gravity.Be lower than center of gravity as supporting point, rotor makes supporting point form transverse stress with unbalance.The thing followed is that the working stress of supporting structure reduces.
Other advantage that has supporting structure 26 at dull and stereotyped 18 tops is to discharge etchant gas with rotor ventilator.Because supporting structure is above dull and stereotyped 18, supporting structure just can not contact with discharging gas, and this is owing to gas is to discharge below dull and stereotyped 18 through blade 19.
In another embodiment, supporting structure is so configuration, guarantees that promptly the position of the center of gravity of rotor 17 is lower than supporting structure 26.
This supporting structure comprises that is used for fixing an accessory 27 that is installed to flat board 18.In Fig. 2 and most preferred embodiment shown in Figure 3, this accessory 27 has three quite long supporting arms that radially separate 28 and three quite short supporting arms that radially separate 29.These arms 28 and 29 are used for supporting structure stably is fixed on dull and stereotyped 18.These arms generally are riveted on dull and stereotyped 18, but also can be fastening with welding or screw.
Supporting structure 26 also comprises a bearing unit, and the form of the composition of this bearing unit is a biserial race device 30.As shown in Figure 6, this biserial race device 30 comprises a central shaft 32 and an overcoat 34 that rotates on central shaft 32.This central shaft 32 and overcoat 34 have corresponding ball distance ring 36 and 38, and the orbiting between corresponding ball distance ring of a plurality of ball bearings 40 is to support this structure.
The heart fixed configurations is in accessory 27 in the biserial race device 30, causes central shaft 32 and dull and stereotyped 18 central axis to be and axially aligns.When biserial race device was fixed in the accessory 27, overcoat was fixing with respect to accessory 27, and central shaft 32 is freely with respect to overcoat 34 and rotates.
Install for rotor 17 is rotated around axle 13, an end 42 of central shaft 32 be installed to an end 44 of axle 13, cause axle 13 and 32 for coaxial to aiming at and being fixed together.
Rotor ventilator has a vault 45 usually, and it is configured in the top of rotor ventilator, to cover supporting structure 26 and to reduce the resistance that rotor ventilator surrounding atmosphere flows.The downside 47 of annulus 21 generally also is equipped with a cover 46.Also help to reduce the resistance that rotor ventilator surrounding atmosphere flows.
The most preferred embodiment of the top rotor ventilator of narrating is at having the rotor ventilator that diameter is about 700mm and highly is about 460mm.For this yardstick with than the ventilator of small scale, when normally needing to use, biserial seat ring ball bearing device 30 keeps the lateral stability of rotor 17.As long as the rotor ventilator with a bearing device is provided, just have the easy manufacturing of this size rotor ventilator and the advantage of reduction manufacture cost, only require a simple bearing device that rotor effectively and is stably rotated.
For the biserial race device that the present invention uses, do not know to know for the preventive measure that reduce the supporting of rotor ventilator frictional rotation.This class biserial race device of Cai Yonging is developed for using in motor or similarity piece under wet environment in the present invention, and therefore adopts high drag seal to guarantee anhydrous being passed in ball bearing and the supporting seat ring.Personnel that are familiar with the no creativity of correlation technique can not approve in the rotor ventilator as rotor ventilator of the present invention is used, and use such biserial race device.
The present invention is surprised to find: by replacing high drag seal with low friction, nothing/low contact seal part.Biserial seat ring bearing means 30 is useful in the rotor ventilator as ball bearing unit, and compares with single-row race device and to have several advantages.
In adopting biserial race device, an example of its advantage is: biserial race device has lateral stability and intensity preferably than single-row race device.So under the less rotor ventilator example case cited as Fig. 3, a biserial race device need keep the enough lateral stability degree of rotor.Adopt a single-row race device can not be enough to realize.Another example is: strengthen the stability and the intensity of biserial race device 30, mean ball bearing unit 30 to be configured in dull and stereotyped 18 tops, and still to keep enough lateral stabilities under certain conditions be possible.
Referring now to Fig. 4 and Fig. 5, wherein represent similar or identical part with identical label, another embodiment of the rotor ventilator that illustrates is bigger than rotor ventilator recited above.Bearing 48 in the middle of additional bearing device adopts is to improve this than greater trochanter lateral stability in use.This intermediate support 48 comprises the structural member 49 of a strap end portion 50 and 52.End 50 is installed on dull and stereotyped 18, and end 52 is installed on the annulus 21.Structural arm 54 laterally stretches towards axle 13 from structural member 49.The end 55 of arm 54 is connected with star wheel supporting 56, and this star wheel supporting 56 is pivotally mounted on the axle 13.
In use, the required hole of improved ventilator for example is set on the building roof.Support spare 10 generally is with the roof fixedlys connected, and makes the position of axle 13 be the vertical position basically by this method, and rotor 17 is freely rotated around axle 13.Therefore, when air by rotor ventilator and make rotor 17 as during above-mentioned rotation, the air of discharging from rotor ventilator inner 12 is by replacing from the air of below, roof.Combustion gas reaches and improves the effect of ventilating then.
Although the present invention is illustrated with reference to certain embodiments, those of ordinary skills be will appreciate that the present invention can multiple other form realize.
Claims (15)
1. rotor ventilator comprises:
One support, one is connected to support and upwards stretches from pedestal;
One rotor, this rotor comprise dull and stereotyped and a plurality of blades that stretch from flat board downwards, and rotor can rotate around axle; With
Bearing device, this bearing device be with rotor bearing on axle, and be configured in dull and stereotyped place.
2. according to the rotor ventilator of claim 1, wherein bearing device is configured in dull and stereotyped top.
3. according to the rotor ventilator of claim 1 or 2, wherein bearing device comprises a rotating bearing assembly.
4. according to the rotor ventilator of claim 3, wherein rotating bearing assembly comprises a biserial bearing race.
5. according to the rotor ventilator of claim 4, wherein rotating bearing assembly comprises:
One bearing, this bearing have a center hole and two axially spaced inner race;
One vertically stretches by the central shaft in hole, and its space definition is between bearing and axle, and axle comprises two axially spaced bearing races in inside, and its seat ring is aimed at the seat ring of bearing;
A plurality of ball bearings, they are capture type and engage between corresponding aligning seat ring; With
One low drag seal is configured in an end of bearing, and radially inwardly goes out towards crown of roll.
6. according to the rotor ventilator of claim 5, wherein rotor ventilator comprises the radially inner second protrusion Sealing of the other end that is configured in bearing.
7. according to the rotor ventilator of above-mentioned arbitrary claim, wherein this rotor ventilator comprises a bearing device, and the one end is installed in rotation on the axle, and the other end is installed on the rotor.
8. according to the rotor ventilator of claim 7, wherein bearing device one end comprises a bearing device that is used to be installed in rotation on the axle.
9. according to the rotor ventilator of claim 7 or 8, wherein bearing device is middle flat board and support.
10. according to the rotor ventilator of above-mentioned arbitrary claim, wherein each end of each blade is installed to flat board by the joint fixing device, and the joint fixing device includes a joint boss that is used to admit at least in the corresponding groove of flat board.
11. be the bearing device that rotor can be rotated in supporting in one way, this mode causes the center of gravity of rotor under this bearing device.
12. according to the bearing device of claim 11, its rotor comprises a flat board, this flat board has a plurality of from its blade that stretches downwards, and wherein bearing device is suitable for being installed on the flat board.
13. according to the bearing device of claim 12, wherein it is suitable for being configured in dull and stereotyped top.
14. according to the bearing device of arbitrary claim in the claim 11 to 13, comprising the rotating bearing assembly of a biserial bearing race.
15. a rotor that is used for rotor ventilator, this rotor comprise a plurality of blades that stretch from supporting, wherein an end of each blade has one and is used for the joint boss of locating in the respective grooves of supporting.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01103752.0A CN1281901C (en) | 2001-02-13 | 2001-02-13 | Rotor ventilator |
| US10/467,610 US20040097184A1 (en) | 2001-02-13 | 2002-02-13 | Rotor ventilator |
| AT02710701T ATE464511T1 (en) | 2001-02-13 | 2002-02-13 | ROTOR FAN |
| PCT/AU2002/000143 WO2002065023A1 (en) | 2001-02-13 | 2002-02-13 | Rotor ventilator |
| ES02710701T ES2346406T3 (en) | 2001-02-13 | 2002-02-13 | ROTOR FAN. |
| EP02710701A EP1360442B1 (en) | 2001-02-13 | 2002-02-13 | Rotor ventilator |
| DE60235962T DE60235962D1 (en) | 2001-02-13 | 2002-02-13 | ROTOR FAN |
| US14/275,305 US20140323033A1 (en) | 2001-02-13 | 2014-05-12 | Rotor ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01103752.0A CN1281901C (en) | 2001-02-13 | 2001-02-13 | Rotor ventilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1369648A true CN1369648A (en) | 2002-09-18 |
| CN1281901C CN1281901C (en) | 2006-10-25 |
Family
ID=4653455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01103752.0A Expired - Fee Related CN1281901C (en) | 2001-02-13 | 2001-02-13 | Rotor ventilator |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20040097184A1 (en) |
| EP (1) | EP1360442B1 (en) |
| CN (1) | CN1281901C (en) |
| AT (1) | ATE464511T1 (en) |
| DE (1) | DE60235962D1 (en) |
| ES (1) | ES2346406T3 (en) |
| WO (1) | WO2002065023A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629774A (en) * | 2012-08-27 | 2014-03-12 | 上海东冠纸业有限公司 | Heat dissipation system of vacuum pump house |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2581239C (en) | 2004-09-23 | 2015-04-07 | National Ventilation Laboratory Pty Ltd | Hybrid ventilator |
| IT1390881B1 (en) * | 2008-07-17 | 2011-10-19 | Zeta Camini S R L | FUME EXTRACTOR FIXTURE FOR CHIMNEY, CHIMNEYS, SMOKE AND SIMILAR CANES |
| DE202010011031U1 (en) | 2010-08-05 | 2010-10-21 | Ventfair Gmbh | Device for cooling gehauster spaces |
| ES2576734T3 (en) | 2010-08-05 | 2016-07-11 | Ventfair Gmbh | Device and procedure for cooling enclosed spaces |
| US20130189917A1 (en) * | 2012-01-24 | 2013-07-25 | Owens Corning Intellectual Capital, Llc | Attic ventilation system |
| EP2917561B1 (en) * | 2012-09-07 | 2018-11-07 | CSR Building Products Limited | Ventilator and blade therefor |
| AU2013313030B2 (en) * | 2012-09-07 | 2018-03-08 | Csr Building Products Limited | System for optimising an enclosed space |
| AU2015201503B1 (en) * | 2015-03-23 | 2016-04-07 | Ivr Group Pty Ltd | Rotary vent |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1857762A (en) * | 1929-10-30 | 1932-05-10 | Vaughn H Meadows | Rotary ventilator |
| US1977934A (en) * | 1932-02-27 | 1934-10-23 | Bolton Joseph | Rotary ventilator |
| US2013244A (en) * | 1934-10-08 | 1935-09-03 | Vergne Arthur J La | Ventilator |
| US2469096A (en) * | 1945-10-16 | 1949-05-03 | William C Wilson | Ventilator |
| US3224078A (en) * | 1963-09-30 | 1965-12-21 | Ruth D Mayne | Method of making a turbine type blower wheel |
| US3343806A (en) * | 1965-05-27 | 1967-09-26 | Gen Electric | Rotor assembly for gas turbine engines |
| US3893383A (en) * | 1974-03-19 | 1975-07-08 | James D Jones | Turbine ventilator |
| FR2377577A1 (en) * | 1977-01-14 | 1978-08-11 | Zaniewski Michel | DEVICE FOR MAINTAINING AND CONTROLLING A DEPRESSION AT THE END OF A VENTILATION OR SMOKE DUCT |
| JPS56500187A (en) * | 1979-01-19 | 1981-02-19 | ||
| US4303375A (en) * | 1980-05-02 | 1981-12-01 | Foglesong Robert M | Closable vane turbine ventilator |
| GB2110306B (en) * | 1981-11-26 | 1985-02-13 | Roll Royce Limited | Turbomachine housing |
| US4786238A (en) * | 1984-12-20 | 1988-11-22 | Allied-Signal Inc. | Thermal isolation system for turbochargers and like machines |
| US4725206A (en) * | 1984-12-20 | 1988-02-16 | The Garrett Corporation | Thermal isolation system for turbochargers and like machines |
| US4697736A (en) * | 1985-01-07 | 1987-10-06 | Leonard W. Suroff | Automatic damper assembly |
| US4831921A (en) * | 1988-05-24 | 1989-05-23 | Clark United Corporation | Spindle bearing assembly for turbine ventilator |
| CA2047576C (en) * | 1991-04-03 | 2002-09-10 | Robert Alan Colwell | Draft inducer blower motor mounting and cooling construction |
| US5160149A (en) * | 1991-06-21 | 1992-11-03 | Allied-Signal Inc. | Seal rotor mount |
| US5326313A (en) * | 1992-09-21 | 1994-07-05 | Clark United Corporation | Thrust bearing assembly for roof turbine |
| US5618167A (en) * | 1994-07-28 | 1997-04-08 | Ebara Corporation | Vacuum pump apparatus having peltier elements for cooling the motor & bearing housing and heating the outer housing |
| AU712893C (en) * | 1996-08-29 | 2003-08-14 | Csr Building Products Limited | Roof ventilator |
| WO2000068619A1 (en) * | 1999-05-06 | 2000-11-16 | Gabriel Andrews | Turbine roof ventilator |
| US6302778B1 (en) * | 1999-05-13 | 2001-10-16 | Gabriel Andrews | Turbine roof ventilator |
| US6352473B1 (en) * | 2000-03-10 | 2002-03-05 | Thomas L. Clark | Windjet turbine |
-
2001
- 2001-02-13 CN CN01103752.0A patent/CN1281901C/en not_active Expired - Fee Related
-
2002
- 2002-02-13 US US10/467,610 patent/US20040097184A1/en not_active Abandoned
- 2002-02-13 AT AT02710701T patent/ATE464511T1/en not_active IP Right Cessation
- 2002-02-13 ES ES02710701T patent/ES2346406T3/en not_active Expired - Lifetime
- 2002-02-13 WO PCT/AU2002/000143 patent/WO2002065023A1/en not_active Application Discontinuation
- 2002-02-13 DE DE60235962T patent/DE60235962D1/en not_active Expired - Lifetime
- 2002-02-13 EP EP02710701A patent/EP1360442B1/en not_active Expired - Lifetime
-
2014
- 2014-05-12 US US14/275,305 patent/US20140323033A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629774A (en) * | 2012-08-27 | 2014-03-12 | 上海东冠纸业有限公司 | Heat dissipation system of vacuum pump house |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1281901C (en) | 2006-10-25 |
| ES2346406T3 (en) | 2010-10-15 |
| EP1360442B1 (en) | 2010-04-14 |
| US20140323033A1 (en) | 2014-10-30 |
| DE60235962D1 (en) | 2010-05-27 |
| EP1360442A1 (en) | 2003-11-12 |
| WO2002065023A1 (en) | 2002-08-22 |
| EP1360442A4 (en) | 2007-03-14 |
| US20040097184A1 (en) | 2004-05-20 |
| ATE464511T1 (en) | 2010-04-15 |
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