| 主权项 |
1. A system comprising:
a casing which encloses a rotating body that is rotated by a working fluid; wherein the casing comprises an upper half that covers an upper portion of the rotating body, and a lower half that covers a lower portion of the rotating body; a heat removal system that comprises a suction device and a discharge duct, wherein a first end of the discharge duct is connected to the upper half of the casing and a second end of the discharge duct is connected to the suction device; a flow path located between portions of the casing and the rotating body, wherein the working fluid flows within the flow path which engages the discharge duct; further comprising an extraction port located on the casing, wherein the discharge duct is connected to the extraction port; and, wherein the flow path engages the extraction port, allowing the residual working fluid to discharge through the extraction port; and further comprising a multi-way valve serially connected in the discharge duct between the extraction port and the suction device; and wherein the multi-way valve directs flow, exiting the extraction port, towards either the suction device or to a vent; a controller configured to after a combustion process ends, operate the suction device to replace the residual working fluid in the flow path with air. |
