FAN-HEAT EXCHANGER Russian patent published in 2004 - IPC

FIELD: ventilation and air conditioning systems. SUBSTANCE: invention relates to ventilation and air conditioning systems in which heat carriers are not mixed with each other. Proposed device contains housing and impeller of two sided centrifugal fan. Housing is divided into two isolated spaces (channels) forming, together with impeller, two isolated centrifugal fans. Impeller is made in form of solid separating disk on both sides of which blades are made square to its plane. Blades are backward curved. EFFECT: facilitated mounting of fan-heat exchanger inn ventilation and air conditioning systems owing to provision of plenum and exhaust flows. 6 cl, 5 dwg