CENTRIFUGAL FREON COMPRESSOR Russian patent published in 2022 - IPC F04D17/12 

FIELD: refrigerating.

SUBSTANCE: invention can be used as a compressor of freon liquid media cooling systems, on-board equipment of helicopters, planes, aerial vehicles, and land-based vehicles subjected to multidirectional vibration loads, configured for work with gas, two-phase gas media, in the liquid pump mode, work in freon-filled systems for air conditioning and industrial and domestic refrigeration units. Centrifugal freon compressor comprises a tightly sealed body; two compressor stages with impellers, diffusers, prefabricated chambers, an inlet branch pipe to the first compressor stage, and an outlet branch pipe from the second compressor stage; a high-frequency electric engine placed between the compressor stages, with the rotor made on the same shaft as the impellers of the compressor stages; support assemblies at the ends of the shaft, preferably, with ceramic roller bearings, with ceramic balls perceiving the radial and axial load of the compressor shaft and the multidirectional vibration load at the installation site of the centrifugal freon compressor, secured in the body and cover of the compressor. The first stage of the compressor is made as a drag compressor and acts as a vacuum pump with a subsequent increase in the pressure before the second stage of the compressor with a centrifugal impeller. In order to ensure the maximum performance coefficient of the compressor stages when pumping media with different densities and during operation in the liquid pump mode, an electric engine with an adjustable speed is used. The body of the centrifugal freon compressor is composed of two parts, wherein an inlet branch pipe is located on one of the parts, and an outlet branch pipe is located on the other part, with a gasket sealing the gap between said parts, while all parts of the centrifugal freon compressor are arranged on the shaft in the increasing order of the diametrical overall dimensions.

EFFECT: creation of a new centrifugal freon compressor.

1 cl, 1 dwg