ROTARY ELECTRIC MACHINE AND ROTOR THEREOF

The invention provides a rotary electric machine and a rotor thereof, which can inhibit the low efficiency of the rotary electric machine. The rotary electric machine (11) includes a cylindrical stator (15) having a stator core (27) on which stator coils (29) are provided, and a rotor (21) that is provided to be freely rotated in a hollow part of the stator (15) and includes a rotor core (31) supported on a rotating shaft and having a plurality of permanent magnets (35) provided therein in a circumferential direction thereof, and a pair of end face plates (41, 43) provided at end parts in an axial direction of the rotor core (31), respectively. The rotor core (31) has a refrigerant flow passage (37) provided therein, the refrigerant flow passage passing through the rotor core in the axialdirection. One end face plate (41) of the pair of end face plates is provided with a refrigerant introducing section (45) configured to introduce a refrigerant supplied via a refrigerant supply pipe (25) into the refrigerant