REFRIGERATOR Russian patent published in 2020 - IPC F25D17/08 

FIELD: cooling or freezing equipment.

SUBSTANCE: refrigerator (100) comprises refrigerator body (10) containing space (102) for storage and compressor chamber (103). Storage container (11) is located in space (102) for storage, and space for freshness preservation is formed inside storage container. Refrigerator (100) further comprises an air conditioning membrane assembly (30) configured to allow passage of more oxygen than nitrogen, in the air flow in the space surrounding the air conditioning membrane assembly (30), through the air conditioning membrane and its entry into the oxygen-enriched gas collection chamber; and air pump assembly (40).

EFFECT: inlet end of air pump (41) is communicated with chamber for collection of oxygen-rich gas in controlled manner by pipeline (51) and pipeline switching mechanism (52), for pumping gas in a chamber for collection of oxygen-enriched gas and discharging outside from space for keeping freshness to maintain actual content of oxygen in space to maintain freshness in range of 2 % to 19 %.

8 cl, 11 dwg