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Aparato economizador de combustibles, caracterizado por estar; constituido por una entrada regulable de aire que, pasando por unas cámaras, dispuestas de mayor a menor y separadas por mamparas correctoras, llega completamente frío al conducto de la chimenea a través de unas boquillas de salida que lo sirven en pequeñas mangas paralelas que, al tropezar con la pared interior del conducto son correctamente difundidas para formar una masa de aire frío de un espesor uniforme que se interpone en el tiro del aire caliente interrumpiendo momentáneamente su circulación.
ES0076568U1959-10-261959-10-26Aparato economizador de combustible
ExpiredES76568Y
(es)