AIR PREPARATION SYSTEM FOR INFLATION OF PRESSURE CABIN OF AIRCRAFT BASED ON VAPOR COMPRESSION REFRIGERATION UNITS WITH SECONDARY HEAT CARRIER Russian patent published in 2019 - IPC B64D13/08 

FIELD: ventilation and air conditioning.

SUBSTANCE: invention relates to aircraft air conditioning system. Proposed system comprises air intake (1L, 1R), electric blowers (2L, 2R), primary air preparation paths. Said paths include units (3L, 3R) of isolated recirculation air recirculation of pressurized cabin. System also comprises vapor compression units (4L, 4R), which include reversible inverter vapor compression machines (4a, 4b) with liquid secondary heat carrier, fluid-liquid heat exchangers (4c, 4d), unit of separation of hot and cold heat carriers (4e), main line of heat carrier circuit for direct and reverse sections of steam compression cycle. System also comprises air ducts, automatic pressure regulation system (5), which comprises valve assemblies (6, 7), which include an inlet valve, a heat exchange chamber with an air-liquid heat exchanger (11L, 11R), an anti-icing and moisture release system, an air filtration system and an outlet valve.

EFFECT: invention improves power and fuel efficiency of ACS.

4 cl, 4 dwg