Stator cooling housing for a stator of a rotary electric motor

A method of manufacturing a stator cooling housing, the method comprising:

• machining, by a lathe, a blank of a cylindrical frame, adapted to mounted around an iron core, to form several sets of adjacent fins between cylindrical surfaces extending around an outer lateral surface of the cylindrical frame;
• machining, on a first portion of the outer lateral surface of the cylindrical frame, a first set of flat surfaces such that each of two opposite sides of each of the flat surfaces of the first set is aligned with two adjacent ones of the several sets of the adjacent fins and such that the flat surfaces of the first set are aligned one under the other along a height of the cylindrical frame;
• machining, on a second portion of the outer lateral surface of the cylindrical frame, a second set of flat surfaces such that each of two opposite sides of each of the flat surfaces of the second set is aligned with two adjacent ones of the several sets of the adjacent fins and such that the flat surfaces of the second set are aligned one under the other along the height of the cylindrical frame and are offset with respect to the flat surfaces of the first set;
• machining a portion of the cylindrical frame to form an inlet channel extending from an upper cylindrical surface of the frame to an uppermost one of the sets of the adjacent fins and an outlet channel extending from the upper surface of the frame to a lowermost one of the sets of the adjacent fins;
• machining an inlet recess in the uppermost set of the adjacent fins to bring the inlet channel in fluid communication with the inlet recess;
• machining an outlet recess in the lowermost set of the adjacent fins to bring the outlet channel in fluid communication with the outlet recess;
• machining, by a lathe, a blank of a cylindrical jacket to form adjacent cylindrical grooves on an inner side of the blank of the cylindrical jacket to produce a cylindrical jacket;
• and
• mounting the cylindrical jacket against the outer lateral surface of the cylindrical frame to form fluid cooling channels in fluid communication with the inlet and outlet channels.