Sealed type rotary compressor

Abstract

An object of the present invention is to promote oil separation in a sealed container, thereby decreasing the amount of oil discharged to the outside of a compressor. The compressor comprises discharge hole provided at positions facing the end surface of a rotor and through which a compressed refrigerant from first and second rotary compression elements is discharged into the sealed container; and a refrigerant flow path which is extended from a space surrounded with a coil end of a stator projecting from the end surface of the rotor to a rotary compression mechanism side to a space of an air gap between the rotor and the stator, to guide the compressed refrigerant discharged through the discharge hole to an electromotive element opposite to the rotary compression mechanism side, and the outlet of this refrigerant flow path opposite to the rotary compression mechanism side faces the inner wall surface of the sealed container.

1 . A sealed type rotary compressor in which a rotary compression element is received in the lower part of a sealed container and in which an electromotive element is received above this rotary compression element, the electromotive element being constituted of a stator, and a rotor rotatably inserted into a magnetic field generated by this stator and fixed to a rotary shaft which also serves as a crank shaft to drive the rotary compression element, the compressor comprising:
 a discharge hole provided at position facing the end surface of the rotor and through which a compressed refrigerant from the rotary compression element is discharged into the sealed container; and   a refrigerant flow path which is extended from a space surrounded with a coil end of the stator projecting from the end surface of the rotor to a rotary compression element side to a space of an air gap between the rotor and the stator, to guide the compressed refrigerant discharged through the discharge hole to the electromotive element opposite to the rotary compression element side,   wherein the outlet of this refrigerant flow path opposite to the rotary compression element side faces the inner wall surface of the sealed container.   
   
   
       2 . The sealed type rotary compressor according to  claim 1 , wherein one of openings of the discharge pipe which guides the compressed refrigerant in the sealed container to the outside therefrom is directed to the inside of the ring-shaped refrigerant flow path in the sealed container. 
   
   
       3 . The sealed type rotary compressor according to  claim 2 , wherein a distance between the end surface of the rotor opposite to the rotary compression element side and the inner wall surface of the sealed container in the direction of the rotary shaft is 25 mm or more.