CA2073754A1 - Sun-tracking solar-collector panel - Google Patents
Sun-tracking solar-collector panelInfo
- Publication number
- CA2073754A1 CA2073754A1 CA002073754A CA2073754A CA2073754A1 CA 2073754 A1 CA2073754 A1 CA 2073754A1 CA 002073754 A CA002073754 A CA 002073754A CA 2073754 A CA2073754 A CA 2073754A CA 2073754 A1 CA2073754 A1 CA 2073754A1
- Authority
- CA
- Canada
- Prior art keywords
- sun
- tubes
- collector
- tracking solar
- tube
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S10/753—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations the conduits being parallel to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
- F24S70/65—Combinations of two or more absorbing elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
Abstract of the Disclosure A sun-tracking solar collector has a stationary sup-port, a pair of parallel, spaced, and longitudinally extending manifold pipes fixed in the support, an array of parallel, spaced, and transversely extending collector tubes between the pipes and each having one end at one of the pipes and another end at the other pipe, and respective swivel joints connecting each tube end to the respective pipe while permitting each tube to pivot relative to the pipes about a respective transverse axis.
Respective generally planar subpanels are each mounted on and ex-tend radially from a respective one of the collector tubes. A
heat-exchange liquid is fed to one of the pipes, then through the tubes, and to the other pipe. A drive can rotate the collector tubes about the respective transverse axes to maintain the sub-panels generally perpendicular to incoming heat radiation.
Respective generally planar subpanels are each mounted on and ex-tend radially from a respective one of the collector tubes. A
heat-exchange liquid is fed to one of the pipes, then through the tubes, and to the other pipe. A drive can rotate the collector tubes about the respective transverse axes to maintain the sub-panels generally perpendicular to incoming heat radiation.
Description
2~3754 SUN-TRACKING SOLAR-COLLECTOR PANEL
SPECIFICATION
Field of the Invention The present invention relates to a solar collector panel. More particularly this invention concerns such a panel which is set up to track the sun.
Backaround of the Invention A standard solar panel comprises a pair of manifold pipes extending longitudinally parallel to each other and a pla-nar array of smaller-diameter collector tubes extending parallel to each other between the tubes. The collector tubes lie on or are imbedded in a planar light-absorbing panel so that all heat radiation impinging on the panel is conducted by the panel to the collector tubes and is there conducted to liquid flowing from one of the manifold pipes to the other manifold pipe through these tubes.
Clearly the panel should be perpendicular to the incom-ing solar radiation to maximize energy collection. Thus it has been suggested in US patents 4,542,737 and 4,632,091 to mount the entire device so that it can pivot about at least one axis.
2~7~7~1 78~6 Means is provided for trac~.ing the sun and operating the servomo-tors that keep the panel aimed just right.
Clearly such an arrangement is fairly complex and in fact uses up so much energy as to be of dubious efficiency. Even if the panel is counterbalanced to pivot about a single axis, moving the considerable mass of the structure is not a simple task.
Objects of the Invention It is therefore an object of the present invention to provide an improved sun-tracking solar collector panel.
Another object is the provision of such an improved sun-tracking solar collector panel which overcomes the above-given disadvantages, that is which is of relatively simple con-struction and where the energy needed to move it to traek the sun is minimal.
Summary of the Invention A sun-tracking solar collector has according to the invention a stationary support, a pair of parallel, spaced, and longitudinally extending manifold pipes, an array of parallel, spaced, and transversely extending collector tubes hetween the pipes ~nd each having one end at one of the pipes and another end at the other pipe, and respective swivel joints conneeting each .. , .. . . ..... . ..... . , .. .. , ,, ~ . ... .. ,." .. .. ,, , ,, ,,,,, ., . ~ . ~ . .. .. . .
2~737~A
7~t~
tube end to the respective pipe while permitting each tube to pivot relative to the pipes about a respective transverse axis.
Respective generally planar subpanels are each mounted on and ex-tend radially from a respective one of the collector tubes. A
heat-exchange liquid is fed to one of the pipes, then through the tubes, and to the other pipe. A drive can rotate the collector tubes about the respective transverse axes to maintain the sub-panels generally perpendicular to incoming heat radiation.
Thus with this system it is not necessary to displace the entire assembly. Instead the individual collector tubes are pivoted to track the sun. Since the pressure inside the system is normally very low, the swivel joints need not be so tight that they make it difficult to rotate the collector tubes.
In accordance with the invention the drive includes a respective wheel fixed on each collector tube and a flexible drive element engaged over and coupled to the wheels so that the drive element can be advanced to synchronously rotate the wheels and thereby synchronously pivot the collector tubes. The stan-dard prior-art sun-tracking system and drive motor is connected to this drive belt or chain.
According to a further feature of the invention each manifold pipe is provided at each respective tube end with a respective transversely projecting tubular nipple projecting along the respective transverse axis into the respective tube end. Respective springs are braced transversely between each manifold pipe and the tube ends to maintain the tubes centered.
207375~
In addition each tube is provided at each nipple with an end cap traversed by the respective nipple and provided internally with a seal ring radially engaging the respective nipple. The drive whee] on one of the ends of each of the collector tubes is clamped axially between the respective tube end and the respec-tive end cap.
The subpanels of this invention are radially extending vanes integrally formed on the respective collector tubes. Each subpanel has a back surface provided with a layer of insulating material and the tubes are pivotal through about 180 between an end collecting position with all the back surfaces turned upward and shielding the respective collector tubes, and an opposite end position with the back surfaces directed downward. This makes it possible to close up the collector to prevent it from overheating during the day or to conserve heat during the night or cloudy times.
To make the system as big as possible each tube is formed by a pair of tube sections joined together by a splice sleeve. The housing has a longitudinally extending intermediate partition wall in which the splice sleeves are journaled. This makes it fairly easy for the collector tubes to be very long.
, , , . . .. ~ .. .. . ,, ,, . .. . ~ . , . .. .. . . . . ~ .
20737~
7~
Brief Description of the Drawina The above and other objects, features, and advantages will become more readily apparent from the following, reference being made to the accompanying drawing in which:
Fig. l is a partly diagrammatic and sectional perspec-tiye view of the solar collector according to the invention;
Figs. 2, 3, and 4 are sectional views of details of the collector; and Figs. 5 and 6 are sectional detail views illustrating two end positions of the individual collector tubes and their subpanels in accordance with this invention.
Specific Descri~tion As seen in Fig. 1 a solar collector according to this invention basically comprises a fixed housing 1 provided along its longitudinal edges with large-diameter manifold pipes 2 and 3 connected to a conventicnal pump 10 for pumping a heat-exchange fluid into the pipe 2 and withdrawing it from the pipe 3 in the manner well known in the art. Bridging the pipes 2 and 3 and passing through partition walls 6 of the housing 1 are small-diameter collector tubes 4 that allow the liquid from the pump 10 to flow betwPen the pipes 2 and 3. The floor of the housing 1 is formed by an insulating board 7 and the top i5 covered by a transparent panel 11.
, .. .. . . ~ . . ... . . . . . ... .
2~737~
7R~-~
As better seen in Figs. 2 and 3 each rod 2 and 3 is provided at each tube 4 with a perpendicularly extending connec-tor nipple or tube section 40 that extends along the respective tube axis 4A into each tube 4. The nipples 40 are of a diameter that is much smaller than the diameter of the tubes 4. Each tube 4 is provided at each end ~ith a liner sleeve 41 fi~ed in place, sealed by O-rings 42, and spacedly internally surrounding the respective feed nipple 40. The outer end of each liner sleeve 41 is threaded and carries an internally threaded cap 43 that holds an 0-ring 44 snugly surrounding the respective feed nipple 40 and that also clamps a sprocket 8 to an end face of a flange 46 formed on the liner sleeve 41. A compression spring 45 surround-ing the nipple 40 presses the respective tube 4 axially of its axis 4A away from the respective manifold tube 2 or 3. No sprocket 8 is provided adjacent the manifold pipe 3, instead a washer 47 takes its place.
Each tube 4 is actually formed of two tube sections fitted as shown in Fig. 4 into the end of sleeve 4~ that is jour-naled in the intermediate or center partition 5 of the housing 1.
Thus it is possible to make the collector of virtually any trans-verse dimension.
In addition as best shown in Figs. 5 and 6 each tube 4 is integrally formed with two diametrically opposite vanes 5 ~orming a respective collector subpanel. These vanes 5 are uni-tarily formed of the same conductive material, normally a metal,as the respective tubes 4 so that sunlight striking them gener-.. . . . . . . . .. .. . ...
213737~
78~
ates heat that is conducted to the tubes 4 and thence to the ; liquid pumped through them. The undersides of the tubes 4 andtheir collector vanes 5 are covered by a layer 51 of an insulat-ing material to minimize heat loss from the back of the collec-tor.
A drive such as described in the abov~-cited US patents has a chain 9 spanned over all the sproc~ets 8 and serves to rotate the individual tubes 4 and their collector vanes 5 aimed at the sun for best heat-collection efficiency. In addition the tubes 4 can be rotated a half revolution as illustrated in Fig. 6 so that the insulating sides 51 are turned up and the tubes 4 are enclosed in a space bounded on the one side by the insulating floor 7 and on the other side by the longitudinally abutting insulating layers 51. This Fig. 6 position is useful to prevent the collector from overheating and to conserve heat when the sun is not out.
SPECIFICATION
Field of the Invention The present invention relates to a solar collector panel. More particularly this invention concerns such a panel which is set up to track the sun.
Backaround of the Invention A standard solar panel comprises a pair of manifold pipes extending longitudinally parallel to each other and a pla-nar array of smaller-diameter collector tubes extending parallel to each other between the tubes. The collector tubes lie on or are imbedded in a planar light-absorbing panel so that all heat radiation impinging on the panel is conducted by the panel to the collector tubes and is there conducted to liquid flowing from one of the manifold pipes to the other manifold pipe through these tubes.
Clearly the panel should be perpendicular to the incom-ing solar radiation to maximize energy collection. Thus it has been suggested in US patents 4,542,737 and 4,632,091 to mount the entire device so that it can pivot about at least one axis.
2~7~7~1 78~6 Means is provided for trac~.ing the sun and operating the servomo-tors that keep the panel aimed just right.
Clearly such an arrangement is fairly complex and in fact uses up so much energy as to be of dubious efficiency. Even if the panel is counterbalanced to pivot about a single axis, moving the considerable mass of the structure is not a simple task.
Objects of the Invention It is therefore an object of the present invention to provide an improved sun-tracking solar collector panel.
Another object is the provision of such an improved sun-tracking solar collector panel which overcomes the above-given disadvantages, that is which is of relatively simple con-struction and where the energy needed to move it to traek the sun is minimal.
Summary of the Invention A sun-tracking solar collector has according to the invention a stationary support, a pair of parallel, spaced, and longitudinally extending manifold pipes, an array of parallel, spaced, and transversely extending collector tubes hetween the pipes ~nd each having one end at one of the pipes and another end at the other pipe, and respective swivel joints conneeting each .. , .. . . ..... . ..... . , .. .. , ,, ~ . ... .. ,." .. .. ,, , ,, ,,,,, ., . ~ . ~ . .. .. . .
2~737~A
7~t~
tube end to the respective pipe while permitting each tube to pivot relative to the pipes about a respective transverse axis.
Respective generally planar subpanels are each mounted on and ex-tend radially from a respective one of the collector tubes. A
heat-exchange liquid is fed to one of the pipes, then through the tubes, and to the other pipe. A drive can rotate the collector tubes about the respective transverse axes to maintain the sub-panels generally perpendicular to incoming heat radiation.
Thus with this system it is not necessary to displace the entire assembly. Instead the individual collector tubes are pivoted to track the sun. Since the pressure inside the system is normally very low, the swivel joints need not be so tight that they make it difficult to rotate the collector tubes.
In accordance with the invention the drive includes a respective wheel fixed on each collector tube and a flexible drive element engaged over and coupled to the wheels so that the drive element can be advanced to synchronously rotate the wheels and thereby synchronously pivot the collector tubes. The stan-dard prior-art sun-tracking system and drive motor is connected to this drive belt or chain.
According to a further feature of the invention each manifold pipe is provided at each respective tube end with a respective transversely projecting tubular nipple projecting along the respective transverse axis into the respective tube end. Respective springs are braced transversely between each manifold pipe and the tube ends to maintain the tubes centered.
207375~
In addition each tube is provided at each nipple with an end cap traversed by the respective nipple and provided internally with a seal ring radially engaging the respective nipple. The drive whee] on one of the ends of each of the collector tubes is clamped axially between the respective tube end and the respec-tive end cap.
The subpanels of this invention are radially extending vanes integrally formed on the respective collector tubes. Each subpanel has a back surface provided with a layer of insulating material and the tubes are pivotal through about 180 between an end collecting position with all the back surfaces turned upward and shielding the respective collector tubes, and an opposite end position with the back surfaces directed downward. This makes it possible to close up the collector to prevent it from overheating during the day or to conserve heat during the night or cloudy times.
To make the system as big as possible each tube is formed by a pair of tube sections joined together by a splice sleeve. The housing has a longitudinally extending intermediate partition wall in which the splice sleeves are journaled. This makes it fairly easy for the collector tubes to be very long.
, , , . . .. ~ .. .. . ,, ,, . .. . ~ . , . .. .. . . . . ~ .
20737~
7~
Brief Description of the Drawina The above and other objects, features, and advantages will become more readily apparent from the following, reference being made to the accompanying drawing in which:
Fig. l is a partly diagrammatic and sectional perspec-tiye view of the solar collector according to the invention;
Figs. 2, 3, and 4 are sectional views of details of the collector; and Figs. 5 and 6 are sectional detail views illustrating two end positions of the individual collector tubes and their subpanels in accordance with this invention.
Specific Descri~tion As seen in Fig. 1 a solar collector according to this invention basically comprises a fixed housing 1 provided along its longitudinal edges with large-diameter manifold pipes 2 and 3 connected to a conventicnal pump 10 for pumping a heat-exchange fluid into the pipe 2 and withdrawing it from the pipe 3 in the manner well known in the art. Bridging the pipes 2 and 3 and passing through partition walls 6 of the housing 1 are small-diameter collector tubes 4 that allow the liquid from the pump 10 to flow betwPen the pipes 2 and 3. The floor of the housing 1 is formed by an insulating board 7 and the top i5 covered by a transparent panel 11.
, .. .. . . ~ . . ... . . . . . ... .
2~737~
7R~-~
As better seen in Figs. 2 and 3 each rod 2 and 3 is provided at each tube 4 with a perpendicularly extending connec-tor nipple or tube section 40 that extends along the respective tube axis 4A into each tube 4. The nipples 40 are of a diameter that is much smaller than the diameter of the tubes 4. Each tube 4 is provided at each end ~ith a liner sleeve 41 fi~ed in place, sealed by O-rings 42, and spacedly internally surrounding the respective feed nipple 40. The outer end of each liner sleeve 41 is threaded and carries an internally threaded cap 43 that holds an 0-ring 44 snugly surrounding the respective feed nipple 40 and that also clamps a sprocket 8 to an end face of a flange 46 formed on the liner sleeve 41. A compression spring 45 surround-ing the nipple 40 presses the respective tube 4 axially of its axis 4A away from the respective manifold tube 2 or 3. No sprocket 8 is provided adjacent the manifold pipe 3, instead a washer 47 takes its place.
Each tube 4 is actually formed of two tube sections fitted as shown in Fig. 4 into the end of sleeve 4~ that is jour-naled in the intermediate or center partition 5 of the housing 1.
Thus it is possible to make the collector of virtually any trans-verse dimension.
In addition as best shown in Figs. 5 and 6 each tube 4 is integrally formed with two diametrically opposite vanes 5 ~orming a respective collector subpanel. These vanes 5 are uni-tarily formed of the same conductive material, normally a metal,as the respective tubes 4 so that sunlight striking them gener-.. . . . . . . . .. .. . ...
213737~
78~
ates heat that is conducted to the tubes 4 and thence to the ; liquid pumped through them. The undersides of the tubes 4 andtheir collector vanes 5 are covered by a layer 51 of an insulat-ing material to minimize heat loss from the back of the collec-tor.
A drive such as described in the abov~-cited US patents has a chain 9 spanned over all the sproc~ets 8 and serves to rotate the individual tubes 4 and their collector vanes 5 aimed at the sun for best heat-collection efficiency. In addition the tubes 4 can be rotated a half revolution as illustrated in Fig. 6 so that the insulating sides 51 are turned up and the tubes 4 are enclosed in a space bounded on the one side by the insulating floor 7 and on the other side by the longitudinally abutting insulating layers 51. This Fig. 6 position is useful to prevent the collector from overheating and to conserve heat when the sun is not out.
Claims (11)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A sun-tracking solar collector comprising:
a stationary support;
a pair of parallel, spaced, and longitudinally extend-ing manifold pipes fixed in the support;
an array of parallel, spaced, and transversely extend-ing collector tubes between the pipes and each having one end at one of the pipes and another end at the other pipe;
respective swivel joints connecting each tube end to the respective pipe while permitting each tube to pivot relative to the pipes about a respective transverse axis;
respective generally planar subpanels each mounted on and extending radially from a respective one of the collector tubes;
means for feeding a heat-exchange liquid to one of the pipes, then through the tubes, and to the other pipe; and drive means for rotating the collector tubes about the respective transverse axes to maintain the subpanels generally perpendicular to incoming heat radiation.
a stationary support;
a pair of parallel, spaced, and longitudinally extend-ing manifold pipes fixed in the support;
an array of parallel, spaced, and transversely extend-ing collector tubes between the pipes and each having one end at one of the pipes and another end at the other pipe;
respective swivel joints connecting each tube end to the respective pipe while permitting each tube to pivot relative to the pipes about a respective transverse axis;
respective generally planar subpanels each mounted on and extending radially from a respective one of the collector tubes;
means for feeding a heat-exchange liquid to one of the pipes, then through the tubes, and to the other pipe; and drive means for rotating the collector tubes about the respective transverse axes to maintain the subpanels generally perpendicular to incoming heat radiation.
2. The sun-tracking solar collector defined in claim 1 wherein the drive means includes:
a respective wheel fixed on each collector tube, and a flexible drive element engaged over and coupled to the wheels, whereby the drive element can be advanced to synchronously rotate the wheels and thereby synchronously pivot the collector tubes.
a respective wheel fixed on each collector tube, and a flexible drive element engaged over and coupled to the wheels, whereby the drive element can be advanced to synchronously rotate the wheels and thereby synchronously pivot the collector tubes.
3. The sun-tracking solar collector defined in claim 1 wherein the housing is provided with at least one longitudinally extending partition wall in which the collector tubes are jour-naled and supported.
4. The sun-tracking solar collector defined in claim 1 wherein the swivel joints each comprise a respective transversely projecting tubular nipple projecting from the respective manifold tubes along the respective transverse axis into the respective tube end.
5. The sun-tracking solar collector defined in claim 4, further comprising respective springs braced transversely between each manifold pipe and the tube ends.
6. The sun-tracking solar collector defined in claim 4 wherein each swivel joint comprises an end cap traversed by the respective nipple and provided internally with a seal ring radi-ally engaging the respective nipple.
7. The sun-tracking solar collector defined in claim 6 wherein the drive means includes a drive wheel on one of the ends of each of the collector tubes, clamped axially between the re-spective tube end and the respective end cap.
8. The sun-tracking solar collector defined in claim 1 wherein the subpanels are radially extending vanes integrally formed on the respective collector tubes.
9. The sun-tracking solar collector defined in claim 8, wherein each subpanel has a back surface provided with a layer of insulating material.
10. The sun-tracking solar collector defined in claim 9 wherein the tubes are pivotal through about 180° between an end collecting position with all the back surfaces turned upward and shielding the respective collector tubes, and an opposite end position with the back surfaces directed downward.
11. The sun-tracking solar collector defined in claim 1 wherein each tube is formed by a pair of tube sections joined together by a splice sleeve, the housing having a longitudinally extending intermediate partition wall in which the splice sleeves are journaled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0144691A AT395908B (en) | 1991-07-18 | 1991-07-18 | SOLAR PANEL |
| ATA1446/91 | 1991-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2073754A1 true CA2073754A1 (en) | 1993-01-19 |
Family
ID=3514070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002073754A Abandoned CA2073754A1 (en) | 1991-07-18 | 1992-07-13 | Sun-tracking solar-collector panel |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0524165A1 (en) |
| AT (1) | AT395908B (en) |
| CA (1) | CA2073754A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8347877B2 (en) | 2009-02-19 | 2013-01-08 | Mill Masters, Inc. | Solar energy collecting system and method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2108964T3 (en) * | 1993-03-04 | 1998-01-01 | Eri En Ressourcen I Forschungs | DEVICE FOR THE COLLECTION OF SOLAR ENERGY. |
| GB9913861D0 (en) * | 1999-06-15 | 1999-08-11 | Talfab Holdings Ltd | Building panels |
| EP1512922A1 (en) * | 2003-09-03 | 2005-03-09 | Francis Raes | Thermal energy collector and device having such a collector |
| EP1536189A3 (en) * | 2003-11-28 | 2011-11-09 | José Carlos Perez Ramos | Low temperature thermal solar collector |
| ES2220230B1 (en) * | 2004-03-09 | 2005-08-16 | Javier Lopez Tello | SOLAR MONOTUBE COLLECTOR AND ITS GROUPING IN THE BATTERY OF TOWNHOUSES OR WITH CAPACITY OF OWN TURN (ISOLATED). |
| NL2005339C2 (en) * | 2010-09-10 | 2012-03-13 | Ubbink Bv | THERMAL PANEL. |
| NO336559B1 (en) * | 2014-02-12 | 2015-09-28 | Mt Åsen As | SOLAR COLLECTOR SYSTEM |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4046136A (en) * | 1975-05-26 | 1977-09-06 | Hitachi Chemical Company, Ltd. | Solar energy collecting device |
| FR2388219A1 (en) * | 1977-04-20 | 1978-11-17 | Invest Develop App | IMPROVEMENTS TO SOLAR ENERGY SENSOR PANELS AND THEIR EXTERNAL CONNECTION BODIES |
| GB1576717A (en) * | 1977-06-17 | 1980-10-15 | Kent G B | Solar radiation collectors |
| DE3045936A1 (en) * | 1980-12-03 | 1982-07-01 | Reinhard Ing.(grad.) 8458 Sulzbach-Rosenberg Eckert | Frame for solar collector - has extruded plastics frame with insulated base, reinforced centre gap and light absorbing upper layer |
| US4542737A (en) * | 1981-10-09 | 1985-09-24 | Wood Kenneth G | Combined pressurized air solar heat sensing head assembly and a pressurized water drive system used to move solar energy collectors in tracking the sun |
| US4632091A (en) * | 1982-09-27 | 1986-12-30 | Wiens David B | Solar energy collector apparatus and method |
| US4527548A (en) * | 1984-02-09 | 1985-07-09 | Gustafson Gary R | Window blind type solar collector |
| EP0249919A3 (en) * | 1986-06-16 | 1989-05-10 | Dietrich Weikert | Shutter arrangement |
| DE8816407U1 (en) * | 1988-05-30 | 1989-08-17 | Pagel, Uwe, Dipl.-Ing., 3300 Braunschweig, De |
-
1991
- 1991-07-18 AT AT0144691A patent/AT395908B/en not_active IP Right Cessation
-
1992
- 1992-07-02 EP EP92890161A patent/EP0524165A1/en not_active Withdrawn
- 1992-07-13 CA CA002073754A patent/CA2073754A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8347877B2 (en) | 2009-02-19 | 2013-01-08 | Mill Masters, Inc. | Solar energy collecting system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| AT395908B (en) | 1993-04-26 |
| EP0524165A1 (en) | 1993-01-20 |
| ATA144691A (en) | 1992-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |