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Machine translation
1. (WO1997037188) HEAT EXCHANGER AND METHOD FOR THE MANUFACTURING THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/037188    International Application No.:    PCT/SE1997/000482
Publication Date: 09.10.1997 International Filing Date: 21.03.1997
Chapter 2 Demand Filed:    27.10.1997    
IPC:
F28F 3/08 (2006.01)
Applicants: LARS PERSSON i SKANE AB [SE/SE]; Axeltoftavägen 180, S-261 72 Landskrona (SE) (For All Designated States Except US).
PERSSON, Lars [SE/US]; (US) (For US Only)
Inventors: PERSSON, Lars; (US)
Agent: AKERMAN, Marten, L.; Albihn Holmqvist AB, P.O. Box 4289, S-203 14 Malmö (SE)
Priority Data:
9601220-8 29.03.1996 SE
Title (EN) HEAT EXCHANGER AND METHOD FOR THE MANUFACTURING THEREOF
(FR) ECHANGEUR THERMIQUE ET PROCEDE DE FABRICATION CORRESPONDANT
Abstract: front page image
(EN)The invention relates to a heat exchanger, as well as to a method for the manufacture thereof, and more specifically a heat exchanger (1) comprising a plurality of channel plates (2) defining channels for the circulation of a medium under pressure. The channel plates (2) are held together by two cover plates (3, 4) arranged at opposite sides of the channel plates (2) by means of clamping devices (6) connecting the cover plates. According to the invention, at least one of the cover plates (3, 4) is pre-bent to provide a compressing force onto the channel plates, to counteract a deflection of the plates and expansion of the central area of the heat exchanger which might otherwise be caused by the pressure of the circulating medium. Preferably, the pre-bending is adapted to the maximum working pressure of the circulating medium. It is preferred that both cover plates (3, 4) are pre-bent in a symmetrical fashion.
(FR)L'invention se rapporte à un échangeur thermique ainsi qu'à son procédé de fabrication, et tout particulièrement à un échangeur thermique (1) comportant une pluralité de plaques à canaux (2) définissant des voies de circulation d'un milieu sous pression. Ces plaques à canaux (2) sont maintenues entre elles par deux plaques de couverture (3, 4) disposées de part et d'autre des plaques à canaux (2) au moyen de dispositifs de serrage (6) servant à relier les plaques de couverture. Conformément à l'invention, l'une au moins des plaques de couverture (3, 4) est pré-incurvée de façon à exercer une force de compression sur lesdites plaques à canaux, à s'opposer au fléchissement des plaques ainsi qu'à l'expansion de la zone centrale de l'échangeur thermique qui pourraient résulter de la pression du milieu de circulation. De préférence, on adapte la forme pré-incurvée de la plaque à la pression de travail maximale du milieu de circulation et, si possible, on incurve préalablement chacune des plaques de couvertures (3, 4) de manière symétrique.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU.
African Regional Intellectual Property Organization (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: Swedish (SV)