patent · EP0095135A3
A solar collector with absorber comprising a plurality of spirally coiled tubes defining non-coincident surfaces
11 April 1984
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J > ) European Patent Office ni) Publication number: 0 095 1 3 5 Office europeen des brevets A3
EUROPEAN PATENT A P P L I C A T I O N
Application number: 83104883.0 lnt.CI.»:F24J 3/02 Date of filing: 18.05.83
Priority: 21.05.82 IT2143282 Applicant: HYDRO SYSTEM S.R.L, Via De Amicis,
Date of publication of application : 30.1 1.83
Bulletin 83/48
Inventor: Filippetti, Lena, Via De Amicis 6, 1-20020 Solaro
(Milan) (IT)
Designated Contracting States: CH DE FR LI
Date of deferred publication of search Representative: Dr. Ing. A. Racheli &C, VialeSan report: 11.04.84 Bulletin 84/15 Michele del Carso, 4, 1-20144 Milano (IT)
Asolar collector with absorber comprising a plurality of spirally coiled tubes defining non-coincident surfaces. A solar collector includes an absorber comprising a bundle of parallel or series connected coiled tubes (10, 11, 26 13), each tube being spirally coiled so as to define a rotational surface, at least the surfaces relative to two tubes being non-coincident, preferably the coils of two tubes being ^11 axially offset to each other. Preferably the tube coils are partially inserted between each other. The collector comprises a preferably double wall envelope (18), with vacuum gap and possibly containing a reflecting screen (17). Prefer-
C0 red materials for the outer envelope are polycarbonate or 00f methyl metacry late; for the coiled tubes (10, 11, a heat stabilized technopolymer with a colour absorbing the solar -~ rays. The envelope (18) may comprise two coaxial bells (18', "» 18") connected by interfitting flanges. A fluid, generally a
Cv liquid, may circulate within the tubes of the bundle, while an
T™ air circulation (inlet 25, outlet may be provided in the space between said tubes (10, 11, and envelope (18), so O as to provide a hot air output.
Ill
ACTORUM AG
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Documents considered to be relevant
Citation of document with indication, where appropriate, Relevant CLASSIFICATION OFTHE Category of relevant passages to claim APPLICATION (Int. Cl. 3)
* Page 3, right-hand column,
* Figure 1, references 14, 16, 18; page 3, right-hand column,
* P a g e 15, p a r a g r a p h 3 - p a g e 17, paragraph 1 *
* P a g e 15, p a r a g r a p h 2; p a g e 1 3 ,
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D e - a - 2 744 022 (dernedde) 5,6 f 24 j 3/02
U S - A - 2 213 894 (BARRY) 8,11 * P a g e 1, l e f t - h a n d column, lines
De-a-2 741 787 (schulze) 12
The present search report has been drawn up for all claims
Place of search Date of completion of the search Examiner BERLIN 10-01-1984 PIEPER C
CATEGORY OF CITED DOCUMENTS T : theory or principle underlying the invention 8 E : earlier patent document, but published on, or particularly relevant if taken alone after the filing date particularly relevant if combined with another D : document cited in the application document of the same category L : document cited for other reasons technological background non-written disclosure & : member of the same patent family, corresponding £ intermediate document document
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DOCUMENTS CONSIDERED TO BE RELEVANT Page 2 Citation of document with indication, where appropriate, Relevant CLASSIFICATION OFTHE Category of relevant passages to claim APPLICATION (Int. Cl. 3)
Technical fields
SEARCHED (Int. Cl. 3)
The present search report has been drawn up for all claims
Place of search Date of completion of the search Examiner BERLIN 10-01-1984 PIEPER C
CATEGORY OF CITED DOCUMENTS T : theory or principle underlying the invention E : earlier patent document, but published on, or
X : particularly relevant if taken alone after the filing date Y : particularly relevant if combined with another D : document cited in the application document of the same category L : document cited for other reasons A : technological background
O : non-written disclosure & : member of the same patent family, corresponding P : intermediate document document
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- 1984-04-11
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