Electric compressor assembly

A compressor assembly comprising:

• an electric motor that comprises a stator and a rotor, wherein the stator defines an axis and wherein the rotor comprises a shaft substantially centered along the axis;
• a compressor wheel coupled to the shaft;
• a back disk disposed between the compressor wheel and the electric motor;
• a housing that comprises a bore wall that seats the stator and an outer wall that comprises a coolant inlet and a coolant outlet in fluid communication with a coolant passage defined by and at least in part between the bore wall and the outer wall;
• at least one pin disposed at least in part in the coolant passage, substantially parallel to the axis, that diminishes flow area within the coolant passage to define multiple flow paths within the coolant passage
• wherein the at least one pin comprises a pin that has an axial length that is less than an axial length of the coolant passage;
• and
• wherein the coolant passage comprises a primary flow path between an end of opposing ends of the pin and an end of the coolant passage and a secondary flow path between the opposing ends of the pin.