HEAT EXCHANGE SYSTEM FOR CASINGS OF ROTARY ELECTRIC MACHINES

The present invention claims a heat exchange system for use with the casing of rotary electric machines provided with a finned casing comprising a plurality of fins (2) with a modified profile intercalated with complementary fins (3), the two complementary profiles being distributed on the outer sur...

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1. Verfasser: CEZÁRIO, CASSIANO ANTUNES
Format: Patent
Sprache:eng ; fre ; por
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Zusammenfassung:The present invention claims a heat exchange system for use with the casing of rotary electric machines provided with a finned casing comprising a plurality of fins (2) with a modified profile intercalated with complementary fins (3), the two complementary profiles being distributed on the outer surface of the casing (1). Said fins (2, 3), which have a mainly continuous profile, are supported in parallel along the length of the casing (1) and have respective projections (5a, 5b) from the reference line (4), the structures (5a, 5b) having a trapezoidal or rectangular cross-section being intercalated in the front region of the machine (1). La présente invention concerne un système d'échange thermique destiné au carter de machines électriques tournantes utilisant ce système, lesdites machines étant dotées d'un carter à ailettes comprenant une pluralité d'ailettes (2), présentant un profil modifié, ces ailettes étant disposées en alternance avec des ailettes (3) complémentaires, les deux profils étant distribués sur la surface extérieure du carter (1). Lesdites ailettes (2) et (3) de profil essentiellement continu, supportées parallèlement sur la longueur du carter (1), présentent respectivement des saillies (5a) et (5b) à partir de la ligne de guidage (4), les structures (5a) et (5b) de section trapézoïdale ou rectangulaire étant intercalées entre elles au niveau de la zone avant de la machine (1). A presente invenção reivindica um sistema de troca térmica aplicado a carcaça de máquinas elétricas girantes utilizando o mesmo, em que as ditas máquinas são dotadas de uma carcaça aletada compreendendo uma pluralidade de aletas (2) dotada de um perfil modificado, cada qual intercalada com aletas (3) complementares, ambos os perfis distribuídos sobre a superfície externa da carcaça (1). As citadas aletas (2) e (3) de perfil predominantemente contínuo, suportadas paralelamente ao longo do comprimento da carcaça (1), apresentam respectivamente projeções (5a) e (5b) a partir da linha guia (4) sendo as estruturas (5a) e (5b) de seção trapezoidal ou retangular intercaladas entre si na região dianteira da máquina (1).