Patent ID: 7708522

Claim:
A rotor of a rotary heat engine comprising: a rotor axis about which the rotor is adapted and configured to rotate; a plurality of thrust mailer passageways, each of the thrust matter passageways comprising a converging region, a diverging region, and an outlet port, each of the thrust matter passageways being at least partially bound by a gas permeable wall, the outlet port of each thrust mailer passageway being adapted and configured to discharge gaseous fluid into an exhaust environment external to the rotor in a manner creating a torque on the rotor about the rotor axis, the diverging region of each of the thrust matter passageways being between the outlet port and the converging region of the respective thrust matter passageway; and a plurality of cooling passageways, each respective one of the cooling passageways being in fluid communication with a respective one of the thrust matter passageways via the respective gas permeable wall that at least partially bounds the respective thrust matter passageway.