AIRCRAFT ON-BOARD EQUIPMENT COOLING METHOD AND SYSTEM Russian patent published in 2020 - IPC B64D47/00 F25B1/00 

FIELD: cooling or freezing equipment.

SUBSTANCE: group of inventions relates to refrigeration engineering, to cooling methods and systems used to provide thermal conditions of aircraft on-board equipment, where liquid is used as cooled medium. Proposed system comprises three closed circuits, the first of which comprises compressor, liquid condenser, air condenser, receiver, throttling device, evaporator filled with intermediate heat conductor-coolant (chladone). System additionally contains control and monitoring unit, temperature and pressure sensors, centrifugal oil-free compressor with built-in electric motor. Hermetic chladone pump-compressor with built-in electric drive is included in the first circuit, suction branch pipe of which is connected to receiver bottom point, and the pressure branch pipe - before the throttling device, from the receiver to the throttling device and in parallel to the chladone pump-compressor there is a check valve.

EFFECT: high-accuracy maintenance of temperature in coolant circuit of cooled on-board equipment in wide range of temperature change of cooling medium.

9 cl, 7 dwg