HEAT EXCHANGER Russian patent published in 2017 - IPC F28D7/12 

FIELD: heating, ventilation.

SUBSTANCE: invention comprises a housing (11) of the heat exchanger, the first channel (18) for fluid through which a first fluid (12) flows, the second channel (36) for fluid through which a second fluid (14) flows, one of the first (12) and second (14) fluids is warmer than the other of the first (12) and second (14) fluids, and after contact with the heat exchange area heat transfer (30) from the warmer fluid ( 14) to the cooler fluid (12) in this heat transfer area takes the place, at that the first channel (18) for the fluid and a second channel (36) for the fluid in the heat exchange area have at least two general areas with (25) the unidirectional flows and a common area (27) with a counter-flow, located between the noted areas (25) with a unidirectional flow or the at least two common areas (27) with a counter-flow and a common area (25, 125, 225) with the unidirectional flow located between the noted areas (27) with a counter-flow.

EFFECT: invention concerns a heat exchanger, preferably for cars.

15 cl, 8 dwg