A rotary electric machine comprising: an externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B"); a rotor that is rotatably disposed inside said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B") such that an axial direction of a shaft is horizontal; a stator comprising: an annular stator core that is disposed coaxially so as to surround said rotor and that is held by said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B"); and a plurality of coils (8a, 50) that are mounted to said stator core so as to be arranged in an annular shape; an annular cooling oil channel that is configured inside said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B") so as to face axially toward said plurality of coils (8a, 50) that are arranged in the annular shape and such that a surface that faces said plurality of coils (88a, 50) is made into an opening; an oil pump; a nozzle that sprays cooling oil that is conveyed under pressure from said oil pump into said cooling oil channel from above; and characterized by a plurality of oil flow direction changing projections (14, 14', 35, 36, 37, 38) that are respectively disposed inside said cooling oil channel and are arranged circumferentially so as to face gaps between coils among said plurality of coils (8a, 50) and such that cooling oil receiving surfaces (14a, 14a') face upstream in a direction of flow of said cooling oil so as to change said cooling oil that flows through said cooling oil channel to an axial flow so as to be supplied to said gaps between said coils (8a, 50). an externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B"); a rotor that is rotatably disposed inside said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B") such that an axial direction of a shaft is horizontal; a stator comprising: an annular stator core that is disposed coaxially so as to surround said rotor and that is held by said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B"); and a plurality of coils (8a, 50) that are mounted to said stator core so as to be arranged in an annular shape; an annular stator core that is disposed coaxially so as to surround said rotor and that is held by said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B"); and a plurality of coils (8a, 50) that are mounted to said stator core so as to be arranged in an annular shape; an annular cooling oil channel that is configured inside said externally mounted frame (10A, 10A', 10A", 10B, 10B', 10B") so as to face axially toward said plurality of coils (8a, 50) that are arranged in the annular shape and such that a surface that faces said plurality of coils (88a, 50) is made into an opening; an oil pump; a nozzle that sprays cooling oil that is conveyed under pressure from said oil pump into said cooling oil channel from above; and characterized by a plurality of oil flow direction changing projections (14, 14', 35, 36, 37, 38) that are respectively disposed inside said cooling oil channel and are arranged circumferentially so as to face gaps between coils among said plurality of coils (8a, 50) and such that cooling oil receiving surfaces (14a, 14a') face upstream in a direction of flow of said cooling oil so as to change said cooling oil that flows through said cooling oil channel to an axial flow so as to be supplied to said gaps between said coils (8a, 50).