Internally mounted radial flow intercooler for a rotary compressor machine

A rotary machine having a rotary shaft mounting a compressor wheel, a housing containing the compressor wheel, a gas inlet in said housing communicating with one end of the compressor wheel, an annular, radially extending space within said housing at an opposite end of said compressor wheel;

• a donut-shaped heat exchanger within said housing having a core with a central opening in surrounding relation to said shaft and a coolant tank on one side of and in fluid communication with the core, said coolant tank characterized by serving as one boundary of said radially extending space;
• and a deswirling vane structure within said radially extending space for causing gas discharged by said compressor wheel to move radially outward within said space, said vane structure being formed of a material of good thermal conductivity and thermally bridged to said tank to conduct heat thereto to be rejected to coolant in said tank whereby said vane structure acts to (a) perform a deswirling function on said discharged gas and (b) provide a thermally conductive path for heat rejection from said discharged gas to coolant within said tank.