CN1608188A - A solar cooker concentrator of the box type, using CPC-type optics - Google Patents
A solar cooker concentrator of the box type, using CPC-type optics Download PDFInfo
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- CN1608188A CN1608188A CNA028096223A CN02809622A CN1608188A CN 1608188 A CN1608188 A CN 1608188A CN A028096223 A CNA028096223 A CN A028096223A CN 02809622 A CN02809622 A CN 02809622A CN 1608188 A CN1608188 A CN 1608188A
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- Prior art keywords
- solar cooker
- chest
- solar
- cooker
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/30—Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/80—Arrangements for concentrating solar-rays for solar heat collectors with reflectors having discontinuous faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/83—Other shapes
- F24S2023/838—Other shapes involutes
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/924—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation using renewable energies
- Y02A40/926—Cooking stoves or furnaces using solar heat
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
- Y02B40/18—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers using renewables, e.g. solar cooking stoves, furnaces or solar heating
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- 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
Abstract
Solar cooker of the concentrating type, using Compound Parabolic Concentrator type optics (2, 2') comprising a box (1), inside which all its accessories and cooking utensils can be carried; the box being essentially made of plastic compatible with the production of complicated curves characteristic of the referred optics. The present invention includes a version in which electrical energy is used as backup for days without sunshine. Its application extends to other areas beyond the cooking of foodstuffs, in particular to the pasteurisation of water, milk and other products and its usage as a drying system.
Description
Technical field
It is of the present invention that to relate to a kind of be box and solar cooker concentrator simultaneously.This solar cooker public use also is called the non-imaging type optical system of ideal or compound parabolic concentrators (CPC) formula, cook food under higher temperature and the power condition in than common box-type solar collector, but keep even improve the operating characteristic of solar cooker, particularly can keep the fixing of solar cooker and can control cooking time.Another basic sides of the present invention is, from the material viewpoint with from the viewpoint of manufacture process, and used Optical devices low cost of manufacture, and the shell of solar cooker and internal structure are all selected plastics for use.The present invention is that first can be used for mass production, the lower-cost method of while hot property in the limit (the high twice of box-type solar collector that frequency ratio is common) of this type solar cooker.
This purpose can reach by researching and developing an optical system.This optical system enters hole area and internal capacity from what optimize, its integrally formed internal reflective walls is crooked, the front-surface mirror that increases is crooked, can in the longest working hours process that is fit to cook food the solar radiation of incident be concentrated by desirable mode.The curved wall that is necessary all is to be made by molded plastics molded in the model of particular design, reflective mirror is then made (in certain embodiments of the invention by thin aluminium reflector, be that 0.4～0.5mm is thick), this aluminium sheet is through roll extrusion bending in advance, and is bonded on the plastics.
The present invention also has other purposes, for example, is used for the pasteurization of water or other food (as milk) and as drier.
Background technology
Using the solar energy cook food is a long idea, existing various embodiment, and wherein many is patented products.
These solar cookers are divided into two main types:
1) with or without the box-type solar collector of the reflective mirror that increases; With
2) concentrator formula solar cooker.
It is many multi-form that first kind of solar cooker has, and its variation is the chest that has with or without reflective flat wall, places the black bottom of cooking vessel, one or two transparency cover.The effect of this lid is that solar radiation is passed through, and forms necessary thermal boundary simultaneously and hinder, and raises to impel the temperature in the chest.The compound mode of the reflective mirror of the geometry of chest (cross section is rectangle or square, cylindrical shape, sphere etc.) and it and flat fixing or motion is varied, and usually and the meridian plane symmetry of solar cooker.
Second kind of solar cooker uses the parabola reflective mirror in the focal zone of directly placing saucepan usually, and it has or not with transparent housing, to improve the hot property of concentrator.In such solar cooker, so-called focusing concentrator is arranged, it concentrates on solar radiation on the cooking vessel in very basic mode; Requirement is followed the sun and is significantly moved every day, for good and all follows the trail of a day aerial position of sun; Forever this container is remained on focussing plane and have on the concentrator of less coefficient of concentration; Require lower tracking accuracy; Around this container, make that in the process of cooking focus is moved on the surface of reflective mirror.
First kind of solar cooker is actionless, and the gross efficiency of cooking vessel is low, power output is little but energy is delivered to.The best solar cooker that sell in market is to make with expensive material, and its characteristic can to make be that some faults are alleviated at least.But because these solar cookers are " manual production " or be at most small serial production, they are still very expensive, at present and use very a large amount of user of the third world countries of timber (a kind of scarce resource) every day, do not have what value like this.As everyone knows, using timber is the one of the main reasons that causes the dangerous situation of worldwide disafforestation.
The practical significance of second kind of solar cooker is little, because it requires solar cooker can follow the tracks of concentrator, this makes solar cooker very expensive usually, and very inconvenient, if the user enters the focal zone unintentionally, then user's eyes have the danger that suffers to concentrate radiation.
Also have a large amount of schemes, wherein stove itself and solar collector are irrelevant, utilize the fluid of heating or transfer its energy on the solar cooker by Optical devices.Sometimes, on certain point of system, adopt vacuum, heat loss is reduced.
These different principles could be improved the performance of prevailing classical box-type solar collector, although some structure may be very complicated (and expensive! ).Yet, do not have a kind of solar cooker to consider can to address the above problem ideally the Optical devices of concentrating of (promptly in the scope that physical first law is determined) directly to improve the possibility of box-type solar collector by in chest, introducing.
Summary of the invention
The present invention improves prior art by a kind of new product, this product be box, also can be the concentrator formula, have in chest self and the outer mirror with front view arrangement of increase non-imaging optical system in aggregates, this product integrates above-mentioned two kinds of basic skills with ideal style (on non-imaging or CPC formula optical system meaning is desirable) for the first time.This optical system is opposite with above-mentioned focusing optical system, does not need to follow the tracks of motion every day of the sun, and solar radiation is concentrated.This has just solved an above-mentioned inconvenient problem, can make power and temperature in the box-type solar collector higher simultaneously, and is focusing as concentrating.The reflective mirror of employed increase (at the back side of lid and side cover) also forms all-in-one-piece, makes the internal optics system can share the characteristic of above-mentioned non-imaging optical system.Having only a side reflective mirror that can be placed on a side or the opposite side also is novel designs, because scheme is that reflective mirror is placed on the both sides usually.Like this, intensity increases, and the most important thing is, realizes the duration of control sun exposure automatically, because the solar cooker placement direction will make that the side reflective mirror can cast a shadow after surpassing cooking time.
On the other hand, the material base of external structure, chest itself and internal structure, reflective mirror and bottom baffle all is to make with the very low material of cost (as plastics).Exterior material can stop the ultraviolet radiation of solar energy, makes inner plastics and can anti-ly surpass 200 ℃ temperature.It is beyond example that proof can be produced this plastics, and this also constitutes related fields of the present invention.This characteristic can allow:
-produce in a large number at low cost;
The bending of-inwall can not make resulting cost seriously rebound;
-mechanical performance is very good, and the life-span is long;
-profile and color are all very attractive in appearance.
The specific embodiment
In order to understand the present invention better, the following describes some accompanying drawings, they represent the preferred embodiment of solar cooker of the present invention, but are not the restrictions to the definite scope of the invention of appended claims.
Fig. 1 represents the longitudinal sectional view of box-type solar collector of the present invention, and it has plastic casing 1, and expression is with the sidewall of the internal structure of plastics 3 system, also have nearside mirror 2 ' and right reflective mirror 2 ", the CPC of symmetry has typical curvature.In order to control and effectively reduce heat loss, interior chest and outside heat insulation layer 2 is arranged between the chest.Among the figure expression have two blocks of glass 4 (upper glass 4 ' and lower-glass 4 "), they are on the silicon line (silicon cord) 6 that is placed at last with plastics 3 insulation and bonding by silicon line 6, this silicon line can guarantee the bonding and sealing of chest internal container.Also represented a flat bottom reflecting surface 12 among the figure, and the black absorption plate of bottom, heating black absorption plate can make solar cooker work.The plastics that also show periphery hide framework 7, and it can guarantee that also two glass covers are fixed on the appropriate location.
Fig. 2 is the cross-sectional view of solar cooker, and it also represents antetheca 5 except the feature that illustrated of expression " and rear wall 5 ' curvature and the curvature of another symmetrical CPC.The lid 9 that also expression increase/concentrated reflective mirror 8 is fixed in the above among the figure.These surfaces are to determine according to fixed optimization index of solar energy of collecting in every day and solar cooker.In one embodiment of the invention, laterally CPC is corresponding to 48 ° ± 5 ° the angle that is truncated to height h (being 140mm in an embodiment of the present invention), and the concentration degree of its solar energy is 1.15 ± 000$00.1; And asymmetric front/bottom CPC is corresponding to the angle of accepting that is truncated to 60 ° ± 5 ° to 65.5 ° ± 5 ° of equal height h (in an embodiment of the present invention for 140mm), and its solar energy concentration degree is 1.12.In this case, total solar energy concentration degree of cabinet interior is 1.29.In this embodiment, be flat at the reflective mirror 8 of the lip-deep increase of inner cover, and be hinged on the axle and (represent), so that can correspondingly tilt, to adapt to the height of the sun during every day and a day with alphabetical A.
At the energy of collecting, the optimization of the optical system of solar cooker is shown: the bending of inwall and lid must be optimized together, and considers the transmissivity of glass cover.End product is neither the accurate lid of Horizon, curved inner wall that neither a moulding accurate CPC part.Yet, comparing with the foregoing description, the income that obtains like this is very little, because in order to make for simplicity, still select flat reflective mirror.Yet the ideal geometry of more generally optimizing of CPC pattern also is one aspect of the present invention.
The rectangular shape of solar cooker, promptly its longitudinal size maximum (as a among Fig. 1 and a ') and lateral dimension less (as b among Fig. 2 and b ') are important.The pass of these sizes is a '/b '=2 ± 0.2, a/b=1.8 ± 0.2.Under the situation of the embodiment of the invention, be of a size of: outer chest a * b=850 * 475mm
2, interior chest a ' * b '=702.3 * 344.2mm
2The height of outer chest and interior chest (as h among Fig. 1 and h ') is optimized from considering optics and calorifics aspect.Like this, obtain h/h '=1.45 ± 0.2, a '/h '=5 ± 0.5, in the embodiment of the invention described above, the value of h ' is 140 ± 10mm.
Consider that from reality square geometry is better.In this case, the optimization of above-mentioned solar energy collecting requires the height of internal capacity bigger.In this case, to the size a among Fig. 1, a ', h, following relationship is satisfied in b among h ' and Fig. 2 and the optimization of b ': a '/b '=1 ± 0.2, a/b=0.9 ± 0.2, a '/h '=3 ± 0.5, h/h '=1.45 ± 0.2.Like this, in one embodiment of the invention, laterally (be 180 ± 20mm) 45 ° ± 5 ° angles in an embodiment of the present invention, its solar energy concentration degree is 1.16 to CPC corresponding to being truncated to height h.In this case, total solar energy concentration degree of cabinet interior is 1.32.In this embodiment, be flat at the reflective mirror 8 of the increase of lid on 9 inner surfaces, and be hinged on the axle (representing) with alphabetical A, so that suitably inclination, the height of the sun during adaptation every day and one day.In this embodiment, still might adopt square geometry,, increase the reflective area of lid so that extend to a flat reflective mirror in the described reflective areas by increase.
Fig. 3 represents to be placed on the side reflective mirror 11 of the increase/shade projection on the side of solar cooker.This principle can allow reflective mirror 11 to be placed on a side or the opposite side of solar cooker according to the difference of time in one day and user's convenience.Except under situation about being completely fixed, increase beyond the effect of solar radiation collection, the asymmetry of Xing Chenging is related fields of the present invention like this.
Fig. 1, the flat reflective bottom of two transparent glass covers 4 of 2,3 expressions and chest 12.The black absorption plate is placed on from this a distance, bottom.Black aluminium baffle 10 is placed on the reflector 12, and (plate 10 thickness are 2～3mm), and this reflector 12 also is the surface that cooking vessel/food is placed.As a kind of method that reduces heat loss, and as a kind of method that obtains the very important temperature difference of the operate as normal of plastics 3, this baffle is placed on the distance of about 1cm above the bottom reflector 12.The situation that the temperature of solar cooker is stagnated (without any load, solar cooker unconsciously is exposed to the situation in the solar radiation of temperature maximum in high one day of the environment temperature) is another aspect of the present invention.
Fig. 4 represents another possible embodiment of the present invention, and wherein, glass cover 4 tilts.When lid 9 front-surface mirror is a tabular surface, or usually, when the optimal value of the curvature of the rate of curving and selected front-surface mirror adapted, front inner wall 2 " " adapted with rear end inwall 2 and asymmetric CPC.
Fig. 5 represents total figure of another embodiment of solar cooker of the present invention, and its lid 9 is opened, and expression is fixed on internal structure 8 on the interior surface ' and two transparent glass covers 4 with reflector.Present embodiment has also been represented the prepass door 14 of a solar cooker inside.In Fig. 5, prepass door 14 is also opened, and the expression CPC5 " bending.This embodiment also have telescoping tube 13 ' and 13 ", be used for covering reflective mirror the appropriate tilt degree being arranged instantaneous the making of certain of every day or one day.
The curvature of inner thermoplastic materials structure 3 can directly be placed reflecting surface.This reflecting surface constitutes the interior reflection wall of solar cooker 2,5 and also is the bottom that is made of the flat reflector 12 that is placed on the thermoplastic materials.
Another important aspect is the possibility that comprises stand-by power source in kitchen range.Particularly in the date that does not have the irradiation of daylight or daylight batch (-type), important especially in the place that the high voltage transmission line road network is arranged.This is very typical in industrialized country, and this kitchen range of there is in leisure market (encamp, weekend room, vacation etc.) or use in other situations (school, factory, construction site etc.).Stand-by power source realizes in two kinds of different modes:
1) first kind and method more generally are with being placed on below the black plate 10 and its fixing resistance, using the control device that comprises a safety thermostat.
2) second method is to use optical means, will be utilized the reflective mirror of one group of CPC formula to be transferred on the base plate by the energy of red-hot resistance radiation.This makes loss minimum in the ideal case, can utilize the far infrared radiation illumination base plate that is emitted by resistance.
This second method is innovated, and it makes resistance separate with baffle, and at the secure context of life-span, cleannes and solar cooker huge advantage is arranged.
Fig. 6 represents to use CPC formula optical system one embodiment of the present of invention as stand-by power source.
The size of optics back-up system can reduce the blocking to the solar radiation of incident to greatest extent, make desirable CPC formula optical system adapt to lateral dimension m ≈ a '/about 7 at the longitudinal size n of vertical direction ≈ b '.This optical system is designed to can be ideally adapt with the cylindrical emission resistance 18 of diameter d=15 ± 10mm.This optical system is by the reflective mirror 16 of bending and 17 and curve 16 ' and 17 ' constitute.This crooked reflective mirror 16 and 17 is on their tangential direction of intersection point, and is suitable with the involute of a virtual cylindrical transmitter; Curve 16 ' and 17 ' then be the continuity of this bending reflective mirror, they can reflex to the ray of emission tangentially on virtual light absorber on the edge of baffle.Above-mentioned optical system can be placed on the left side or the right side of solar cooker, and this solar radiation that depends on which side plays a major role, and most convenient is the more side of shade that is placed on by more sluggish curved wall or cooking vessel projection.
In another embodiment of this optical system, the area of the baffle that it throws light on, can than be capped above and comprise that the area of entire plate is little.Under the restriction of the possible optical system of minimum, curve 16 ' and 17 ' can not have.
The existence of stand-by power source can provide in normal working conditions, the identical energy that provides by the sun, so that do not change in use, and the condition of cooking that causes by the resistance that is placed on below the baffle.Its control system also is novel in the present invention.
The lower surface of chest 1 has leg, can be at horizontal plane upper support stove.Centre pin is slightly shorter than other pin, and this is just avoided because the load in the solar cooker causes deformation of bottom too big too greatly.In present embodiment of the present invention, pin is columniform.
Characteristics of the present invention also are, movable pipe can be put into pin, pipe have or do not have flexible ability (as, be plastic tube under situation of the present invention), solar cooker can be placed on overhead any desirable height, not need table top or any other to play the supporting of this effect.
Solar cooker of the present invention can also have a solar energy clock, and the dial of clock engraving is on glass (or use additive method), and has a shade that designs for local latitude and throw the patron saint.
The rectangle of solar cooker of the present invention when Qi Gai closes is two chests, can move cooking vessel within it and easily, side reflective mirror and solar energy clock patron saint etc.
List of references of the present invention
·Nandwani?S.(1993)：“La?Cocina/Homo?Solar”Editorial?Fundacion.
Biermann E., Grupp.M., Palmer R., " Solar Cooker Aceeptance in, SouthAfrica:Results of a Comparative Field Test ", Solar Fnergy, the 401st～407 page of Vol.66.No.6., 1999 years.
Claims (19)
1. box-type solar collector, i.e. concentrator, it is included in the crooked front-surface mirror that is generally of the non-imaging optical system of its inner compound parabolic concentrators formula and whole increase; It is characterized in that this solar cooker comprises:
Shell chest (1);
Internal structure (3), it has nearside mirror (2 ') and right reflective mirror, and (2 "), this reflective mirror have the typical curvature of the compound parabolic concentrators of symmetry;
Thermal insulation zone (2) between internal structure (3) and shell chest (1) is used for control and effectively reduces heat loss;
Comprise upper glass (4 ') and lower-glass (two blocks of glass (4) of 4 "), back glass is bonding with silicon line (6), the silicon line makes back glass and internal structure (3) insulation, the sealing of assurance chest internal capacity;
Flat bottom reflecting surface (12);
The black flat board (10) of bottom, its heating can make solar cooker work;
Periphery hides framework (7), can guarantee the fixing of two blocks of glass; And
Vinyl cover (9), the rear wall of it and solar cooker chest is hinged, and is placing increase/concentrated reflective mirror covering.
2. solar cooker as claimed in claim 1 is characterized in that, solar absorption panels (10) is placed on the distance from reflective chest bottom 10～15mm.
3. solar cooker as claimed in claim 1 is characterized in that, the size of outer chest and interior chest is corresponding to ratio a/b=1.8 ± 0.2, a '/b '=2 ± 0.2, h/h '=1.45 ± 0.2.
4. solar cooker as claimed in claim 1 is characterized in that, the size of outer chest and interior chest is corresponding to ratio a/b=0.9 ± 0.2, a '/b '=1 ± 0.2, a '/h '=3 ± 0.5, h/h '=1.45.
5. solar cooker as claimed in claim 4 is characterized in that, the level crossing of the retroreflective regions of lid below being positioned at it extends.
6. solar cooker as claimed in claim 1, it is characterized in that, it comprises the stand-by power source that the resistance by column type constitutes, this resistance is placed in the optical system of compound parabolic concentrators formula, its lateral dimension be about solar cooker chest longitudinal size 1/7 or littler, and on all its inner transversal dimension, stretch, the energy that can in an ideal way resistance be sent is passed on the smaller portions of entire plate or this plate.
7. solar cooker as claimed in claim 6 is characterized in that, stand-by power source constitutes by placing and be fixed on the upper and lower resistance of black absorption plate (10), and has control and safe self-operated thermostatic controller.
8. as each described solar cooker in the above-mentioned claim, it is characterized in that outer chest (1) is made by the plastics of anti-solar energy ultraviolet radiation.
9. as each described solar cooker in the above-mentioned claim, it is characterized in that the covering framework (7) of internal structure (3) and periphery is made by the hot type plastics of anti-200 ℃ of following temperature.
10. each described solar cooker as in the above-mentioned claim is characterized in that it has the prepass door (14) of the reflection wall of a bending that has a compound parabolic concentrators formula.
11. as above-mentioned claim in each described solar cooker, it is characterized in that, the lid (9) and its increase/concentrator reflective surface (8) inclination by the telescopic arm that can do continuous or a large amount of inclinations angle (13 ', 13 ") obtain.
12., it is characterized in that having the side or the horizontal increase on the opposite side/concentrated reflective mirror (11) that are placed on chest (1), as each described solar cooker in the above-mentioned claim as the device of stationarity that guarantees solar cooker and control cooking time.
13. solar cooker as claimed in claim 1 is characterized in that, glass cover (4) tilts, when the reflective mirror of enclosing cover (9) when being flat, inner front wall (2 " ") and rear wall (2 ) corresponding to asymmetric compound parabolic concentrators.
14. as each described solar cooker in the above-mentioned claim, it is characterized in that it can hold the solar energy clock, this clock can be controlled cooking time automatically with laterally increase/shade projection reflective mirror (11) is comprehensive.
15. as each described solar cooker in the above-mentioned claim-, it is characterized in that it has short leg on the lower surface of chest outside, the center leg is shorter, the heavy weight device of last mistake in the compensation solar cooker during as needs, and do not make the solar cooker distortion.
16. as claim 12 or 13 described solar cookers, it is characterized in that described leg can hold telescopic or not telescopic movable pipe, cooperate with these pipes, solar cooker can be increased to the height of conveniently cooking, and not need solar cooker to be placed on other surfaces for this reason.
17. the use as each described solar cooker in the above-mentioned claim is characterized in that it can be used for cook food.
18. the use as each described solar cooker in the above-mentioned claim is characterized in that it can be used for the pasteurization of food, particularly water or milk.
19. the use as each described solar cooker in the above-mentioned claim is characterized in that it can be used for the product of dry any character.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PT102576 | 2001-03-09 | ||
| PT102576A PT102576A (en) | 2001-03-09 | 2001-03-09 | CONCENTRATOR SOLAR OVEN OF THE CASING TYPE, INCORPORATING OTIC COMPOUND PARABOLIC COLLECTOR TYPE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1608188A true CN1608188A (en) | 2005-04-20 |
Family
ID=20086021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028096223A Pending CN1608188A (en) | 2001-03-09 | 2002-03-06 | A solar cooker concentrator of the box type, using CPC-type optics |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040134485A1 (en) |
| EP (1) | EP1409933A1 (en) |
| CN (1) | CN1608188A (en) |
| CA (1) | CA2457119A1 (en) |
| IL (1) | IL158718A0 (en) |
| NO (1) | NO20035714D0 (en) |
| PT (1) | PT102576A (en) |
| WO (1) | WO2002075226A1 (en) |
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|---|---|---|---|---|
| US20100313878A1 (en) * | 2002-05-30 | 2010-12-16 | John Essig | Systems and methods for harnessing resources |
| US20090133688A1 (en) * | 2007-11-01 | 2009-05-28 | La William H T | Solar cooking pot |
| US20110206818A1 (en) * | 2010-02-19 | 2011-08-25 | Arlus Walters | Solar Oven and Method of Solar Cooking |
| TW201333393A (en) * | 2012-02-13 | 2013-08-16 | Ind Tech Res Inst | Apparatus for solar thermal collection and system of the same |
| ES1193309Y (en) * | 2017-09-27 | 2018-01-05 | Encinas Alvaro Sanchez | SOLAR YOGURTERA |
| US20210239363A1 (en) * | 2018-04-30 | 2021-08-05 | Indian Institute Of Technology Bombay | Solar appliance |
| US11522511B2 (en) * | 2020-11-18 | 2022-12-06 | Paulo Carvalho | Digitally controlled multistage combiner with a cascade of combiners |
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| US6361514B1 (en) * | 2001-02-23 | 2002-03-26 | Brown Medical Industries | Universal ankle splint |
| US6648843B1 (en) * | 2003-03-17 | 2003-11-18 | Mk, L.L.P. | Combination night splint and walking boot |
-
2001
- 2001-03-09 PT PT102576A patent/PT102576A/en not_active IP Right Cessation
-
2002
- 2002-03-06 IL IL15871802A patent/IL158718A0/en unknown
- 2002-03-06 WO PCT/PT2002/000004 patent/WO2002075226A1/en not_active Application Discontinuation
- 2002-03-06 US US10/476,984 patent/US20040134485A1/en not_active Abandoned
- 2002-03-06 CN CNA028096223A patent/CN1608188A/en active Pending
- 2002-03-06 CA CA002457119A patent/CA2457119A1/en not_active Abandoned
- 2002-03-06 EP EP02708857A patent/EP1409933A1/en not_active Withdrawn
-
2003
- 2003-12-19 NO NO20035714A patent/NO20035714D0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1409933A1 (en) | 2004-04-21 |
| WO2002075226A1 (en) | 2002-09-26 |
| WO2002075226A8 (en) | 2002-11-14 |
| PT102576A (en) | 2002-09-30 |
| WO2002075226B1 (en) | 2003-02-27 |
| CA2457119A1 (en) | 2002-09-26 |
| US20040134485A1 (en) | 2004-07-15 |
| IL158718A0 (en) | 2004-05-12 |
| NO20035714D0 (en) | 2003-12-19 |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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