SEMIHERMETIC REFRIGERANT COMPRESSOR Russian patent published in 2021 - IPC F04B35/04 

FIELD: refrigeration.

SUBSTANCE: invention relates to a semihermetic refrigerant compressor. The semihermetic refrigerant compressor contains a reciprocating compressor and an electric motor. The general body has a motor section of the body for the electric motor and a compressor section of the body for the reciprocating compressor. For the refrigerant duct located on the suction side leading from the intake pipe in the main body to the inlet chamber of the reciprocating compressor and the refrigerant duct located on the discharge side leading from the inlet chamber of the reciprocating compressor to the discharge pipe to function more efficiently, it is suggested that the electric motor is made as a synchronous motor wherein permanent magnets are located in the rotor of the motor for synchronous work of the electric motor and a short-circuited cell for operating the electric motor for asynchronous work. The permanent magnets are spread parallel to the rotor shaft and made into plate pieces wherein the flat sides of the pieces are spread lengthways and edgeways perpendicular to the length and have different magnetic polarity on the opposing flat sides wherein one of the sides is facing the rotor shaft and the other is facing from the rotor shaft. The permanent magnets are constructed for the permanent magnets following one another in the direction of circulation have alternating polarity on the sides facing the rotor shaft so due to the permanent magnets the rotor in general has alternating in the direction of circulation magnetic poles.

EFFECT: more effective energetic operation is achieved.

39 cl, 11 dwg